Page 1 Internal Use Only Service Manual LG-D855 Date: July, 2014 / Issue 1.0...
Page 2: Table Of Contents
3.15 Touch .....................172 3.16 Sensor ....................175 3.17 Remote Sensor (IRRC Sensor) ............183 3.18 USB/Slimport ..................185 3.19 CAMERA ....................187 LGE Internal Use Only - 2 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 4 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only - 4 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 5: Specifications
Android Market™ – browse and download thousands of free and paid apps from around the world† • Live Wallpaper – dynamic, animated backgrounds LGE Internal Use Only - 5 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 6 Music Library – Organized by Artists, Albums, Songs, Genres, Folders and Playlists • Repeat and Shuffle Music Playback Modes LGE Internal Use Only - 6 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 7 • Metro Navigator® – spoken turn-by-turn directions showing real-time traffic • Wi-Fi Connectivity – IEEE 802.11 a/b/g/n, ac LGE Internal Use Only - 7 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 8 2400 MHz ~ 2483.5 MHz & 5150 MHz ~ 5825 MHz 1574.42 MHz ~ 1576.42 MHz, 1597.55MHz ~ 1605.86MHz 13.56MHz LGE Internal Use Only - 8 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 9 • Bluetooth Headset (Optional) • Bluetooth Hands-free kit (Optional) • Stereo Headset* • Vehicle Power Charger (VPC) (Optional) LGE Internal Use Only - 9 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10: Performance
WCDMA(FDD2) RX : 1930 – 1990 MHz WCDMA(FDD5) TX : 824 – 849 MHz LGE Internal Use Only - 10 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 11: Main Parts & Solution
RF Chip WTR1625L : Qualcomm RF Chip WTR1625L : Qualcomm LGE Internal Use Only - 11 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only LGE Internal Use Only...
Page 12: Hw Features
Class4 (EGSM) EDGE Class4 (GSM850) SIM card Class 12 Class1 (PCS) type Class1 (DCS) Class3(LTE) LGE Internal Use Only - 12 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 13 Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash (External Memory) LGE Internal Use Only - 13 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 14 Standard Voltage : 3.8 V, Battery Full Charge Voltage : 4.35V Standard Voltage : 3.8 V, Battery Full Charge Voltage : 4.35V LGE Internal Use Only - 14 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 15 48% -> 47% Bar 10 -> Bar 9 48% -> 47% LGE Internal Use Only - 15 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only LGE Internal Use Only...
Page 16: Sw Features
There is no limitation on the Group number of items. It depends on available memory LGE Internal Use Only - 16 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 17 Unit Convert Stop Watch Wall Paper WAP stack and wml are not WAP Browser supported. LGE Internal Use Only - 17 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 18 Hold / Retrieve Conference Call Max. 7 DTMF Memo pad integrated to QMemo+ SyncML Gtalk Email LGE Internal Use Only - 18 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 19: H/W Spec
: -98dBm / -96dBm (2.439%) AM Suppression -98dBm/-96dBm (2.439%) GSM : -31dBm DCS : -29dBm LGE Internal Use Only - 19 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 20 < 17.5 %, when Pout ≥ -20 dBm < -15 dB at Pout  -20 dBm Peak Code Domain Error LGE Internal Use Only - 20 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 21 -1 / -3 -1.5 / -4 group(10equal command group) +8 / +12 +16 / +24 LGE Internal Use Only - 21 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 22 > 43 dB @ ±10 MHz Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm LGE Internal Use Only - 22 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 23 30 kHz < f < 1 GHz 100kHz 1GHz < f < 12.75 GHz 1MHz LGE Internal Use Only - 23 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 24 1574.42 MHz ~ 1576.42 MHz Minimum Sensitivity 1 satellite ≥-142dBm, 7 satellites ≥ -147dBm at coarse time aiding LGE Internal Use Only - 24 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 25 -77dBm@18Mbps, -74dBm@24Mbps, -70dBm@36Mbps -66dBm@48Mbps, -65dBm@54Mbps Rx Max input Sensitivity ≥ -30dBm(6,9,12,18,24,36,48,54Mbps) @ PER ≤ 10% LGE Internal Use Only - 25 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 26 ≥ 35dB @FER ≤ 8%, Rejection interference input signal -70dBm@fc±25MHz(11Mbps) Rejection interference input signal -70dBm@fc±25MHz(11Mbps) LGE Internal Use Only - 26 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 27 ※ACR shall be measured by setting the desired signal's stren gth 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 27 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 28 < -54 dBm @ 174 MHz to 230 MHz < -36 dBm @ 230 MHz to 470 MHz LGE Internal Use Only - 28 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 29 ※ACR shall be measured by setting the desired signal's stren gth 3 dB above the rate-dependent Sensitivity specified in min input sensitivity LGE Internal Use Only - 29 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 30 < -54 dBm @ 47 MHz to 74 MHz < -36 dBm @ 74 MHz to 87,5 MHz LGE Internal Use Only - 30 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 31 ACR shall be measured by setting the desired signal's strength 3 dB ※ above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 31 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 32 < -54 dBm @ 174 MHz to 230 MHz < -36 dBm @ 230 MHz to 470 MHz LGE Internal Use Only - 32 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 33 ※ACR shall be measured by setting the desired signal's strengt h 3 dB above the rate-dependent sensitivity specified in min in put sensitivity LGE Internal Use Only - 33 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 34 -79dBm@13.5Mbps, -76dBm@27Mbps, -74dBm@40.5Mbps Rx Min input Sensitivity -71dBm@54Mbps, -67dBm@81Mbps, -63dBm@108Mbps -62dBm@121.5Mbps, -61dBm@135Mbps, -56dBm@162Mbps, -54dBm@180Mbps LGE Internal Use Only - 34 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 35 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min inpu t sensitivity LGE Internal Use Only - 35 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 36 < -30 dBm @ 5.725 GHz to 26.5 GHz PER ≤ 10% Rx Min input Sensitivity -76dBm@29.3Mbps, -73dBm@58.5Mbps, -71dBm@87.8Mbps -68dBm@117Mbps, -64dBm@175.5Mbps, -60dBm@234Mbps LGE Internal Use Only - 36 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 37 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input s ensitivity LGE Internal Use Only - 37 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 38 10101010 kHz/50us Drift Rate Out of Band Spurious @ 30MHz ~ 12.75GHz Emission PRBS9 LGE Internal Use Only - 38 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 39 Δf = -10MHz (BT) BER @ 0.1% Maximum Input Level BER @ 0.1% PRBS9 LGE Internal Use Only - 39 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 40 2) Reader mode : Get information from tag(recognition distance : over 20mm) 3) Peer-to-peer mode : Device to device communication(recognition distance : over 5mm) LGE Internal Use Only - 40 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 41: Trouble Shooting
Wears earth ring on your wrist Touch with your finger on the FL1211 It should last at least 3 second. LGE Internal Use Only - 41 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42: Checking Xo Block
GP_DATA1 WTR0_GPDATA_1 GND64 SSBI_TX_GNSS WTR0_SSBI_TX_GNSS SSBI_PRX_DRX WTR0_SSBI_PRX_DRX ADC_IN C1541 XO_IN WTR0_XO_IN C1543 PRX_LB_CA_OUT PRX_MB_CA_IN PRX_HB_CA_OUT DRX_LB_CA_OUT DRX_MB_CA_IN DRX_HB_CA_OUT LGE Internal Use Only - 42 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 43 XO Circuit is OK. Is it 19.2MHz? Check next step The Problem may be Logic part Refer to Logic trouble shoot LGE Internal Use Only - 43 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44: Checking Transceiver Dc Power Supply Circuit Block
TX_BB_IM WTR_GSM_LB_TX_LB2 WTR0_TXBB_I_N TX_LB3_OUT TX_BB_IP WTR_B17_B20_TX_LB3 WTR0_TXBB_I_P WTR_B28_TX_LB4 TX_LB4_OUT TX_BB_QM WTR0_TXBB_Q_N TX_MB1_OUT TX_BB_QP WTR0_TXBB_Q_P TX_MB2_OUT WTR_GSM_HB_TX_MB2 WTR_B1_B2_TX_MB3 TX_MB3_OUT LGE Internal Use Only - 44 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 45 The Problem may be Logic part +2.05 V_RF is OK? Refer to Logic trouble shoot Check next step LGE Internal Use Only - 45 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46: Checking Dc-Dc Block
PACB C1336 U1300 RFFE1_CLK SCLK 0.1u LM3263 SVDD SDATA RFFE1_DATA PGND TP1 (+VPA0) L1301 1.5u +VPA0 C1338 C1337 LGE Internal Use Only - 46 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 47 Check U1300 Physical Damage or Check TP1(+VPA0) soldering condition 0.5V ≤ TP4 ≤ 4.2V ? Check next step LGE Internal Use Only - 47 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48: Asm(Antenna Switch Module) Block
3.4.1 Checking FEMiD (GSM, W B1/2/5/8, LTE B1/B3/B8/B20) Block FL1202 TP2(1.8V) TP1(2.7V) <Main Top> TP2(1.8V) FEMID_ANT1 C1208 100p TP1(2.7V) C1206 100p RFFE2_DATA RFFE2_CLK LGE Internal Use Only - 48 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 49 Refer to Logic trouble shoot (1.7V≤TP2 ≤1.9V) NOT GOOD Check U1301 physical Damage Replace U1301 or soldering condition Check next step LGE Internal Use Only - 49 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 <Main Top> ANT_TRX_B13 ANT_TRX_B28A ANT_TRX_B7 GRFC_4 U1302 GND3 CTL3 GRFC_6 CTL2 GRFC_7 GND2 CTL1 TP1(2.7V) +2V7_VREG_L16 ANT_PRX_B40 ANT_TX_B40 LGE Internal Use Only - 50 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 51 Refer to Logic trouble shoot Not good Check U1302 physical Damage Replace U1302 or soldering condition Check Next step LGE Internal Use Only - 51 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52 Block Refer 3.2 Check FEMid Block Refer 3.4 Check T/RX Block Refer 3.5 Re-Download & Cal Change the Board LGE Internal Use Only - 52 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 53 GSM850/900/1800/1900 RX RF PATH U1500 FL1202 1. GSM850 RX PATH 2. GSM900 RX PATH 3. GSM1800/1900 RX PATH LGE Internal Use Only - 53 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54 3.5.1.1Checking RF signal path (SW) SW1101 <Main Bot> SW1101 C1101 1.5n COMMON FL1101 R1100 Termination_Port L1100 C1104 GND2 GND1 ANT1_CPL_OUT Coupling LGE Internal Use Only - 54 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 55 3. TROUBLE SHOOTING START Check TP1 Signal exist? Check SW1101 Soldering Check next step LGE Internal Use Only - 55 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 57 1.5p CO-Banding C1228 L1214 WTR_G850_B5_PRX_LB3 GSM850_W B5_RX CO-Banding C1331 L1218 WTR_B2_PRX_MB3 3.3n 100p C1239 L1222 WTR_GSM_HB_PRX_MB2 5.6n GSM_HB_RX LGE Internal Use Only - 57 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58 Check TP1/2/3 Signal exist? Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 58 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 59 FL1101 <Main Top> SW1101 <Main Bot> 1. GSM850/900 TX PATH 2. GSM1800/1900 TX PATH 3. COMMON T/RX PATH LGE Internal Use Only - 59 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60 Check TP1 +VPWR OK? Logic part Check DC-DC Power Block Refer to 3.3 Check TP2 3.2V≤TP2≤4.2V? Check next step LGE Internal Use Only - 60 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 61 RF_out_HB2 RF_IN_HB2_3G4G RF_out_HB3 RF_IN_LB1_3G4G RF_out_HB4 RF_IN_LB2_3G4G RF_IN_GSM_HB RF_out_LB1 RF_IN_GSM_LB RF_out_LB2 RF_out_LB3 RF_out_GSM_HB RF_out_GSM_LB SDATA RFFE2_DATA U1301 SCLOCK RFFE2_CLK LGE Internal Use Only - 61 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62 Refer to 3.5.1.1 START Check TP1 Check SW1101 Soldering If GSM850/900 Over 31dBm? If DCS/PCS Over 28dBm? Check next step LGE Internal Use Only - 62 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 63 3. TROUBLE SHOOTING 3.5.2.3 Checking RF signal path U1301 <Main Top> LGE Internal Use Only - 63 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64 3. TROUBLE SHOOTING C1322 C1323 WTR_GSM_HB_TX_MB2 C1730 C1325 WTR_GSM_LB_TX_LB2 2.4n C1324 TX_GSM_HB 3.9p C1327 TX_GSM_LB 4.7n LGE Internal Use Only - 64 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 65 If DCS/PCS Over 7dBm? Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 65 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66: Wcdma Rf Part
Refer 3.3 Check ASM Block Refer 3.4 Check T/RX Block Refer 3.6 Re-Download & Cal Change the Board LGE Internal Use Only - 66 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 67 6. WCDMA B1 DRX PATH 7. WCDMA B5 DRX PATH <Main Top> 8. WCDMA B8 DRX PATH 8. COMMON DRX PATH LGE Internal Use Only - 67 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68 3.6.1.1 Checking RF signal path (SW) Refer to 3.5.1.1 3.6.1.2 Checking RF signal path(B1/B2/B5/B8) U1301 U1500 FL1202 <Main Top> LGE Internal Use Only - 68 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 69 C1331 L1218 WTR_B2_PRX_MB3 3.3n 100p C1987 L1213 WTR_B1_PRX_HMB4 100p 100p C1214 L1211 WTR_G900_B8_PRX_LB2 C1226 1.5p C1228 L1214 WTR_G850_B5_PRX_LB3 LGE Internal Use Only - 69 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70 START Check FL1202 Check TP1/2/3/4Signal exist? Replace U1500 Check Transceiver physical damage or soldering condition Check next step LGE Internal Use Only - 70 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71 3.6.1.3 Checking DRX RF signal path (B1) U1301 U1500 FL1202 <Main Top> 2140MHz FL1755 L1106 C1449 33p C1446 WTR_B1_B4_DRX_MB1 2.2n G1 G2 LGE Internal Use Only - 71 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72 Check TP2 Signal exist? Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 72 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73 3.6.1.4 Checking DRX RF signal path (B5) U1301 U1500 FL1202 <Main Top> 881.5MHz FL1759 C1135 L1122 C1453 WTR_B5_DRX_LB3 G1 G2 G3 L1168 LGE Internal Use Only - 73 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74 Check TP2 Signal exist? Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 74 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75 3.6.1.5 Checking DRX RF signal path (B8) U1301 U1500 FL1202 <Main Top> 942.5MHz FL1760 L1124 C1136 C1454 WTR_B8_DRX_LB1 G1 G2 G3 1.8n LGE Internal Use Only - 75 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76 Check TP2 Signal exist? Not good Replace U1500 Check Transceiver physical damage or soldering condition Check next step LGE Internal Use Only - 76 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 77 2. WCDMA B2 TX PATH 3. WCDMA B5 TX PATH 4. WCDMA B8 TX PATH 5. COMMON T/RX PATH LGE Internal Use Only - 77 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78 Check TP1 +Vbatt OK? Check Logic part Check TP2 Check DC-DC Power Block Refer to 3.3 0.5V≤TP2≤4.2V? Check next step LGE Internal Use Only - 78 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 79 RF_out_HB2 RF_IN_HB2_3G4G RF_out_HB3 RF_IN_LB1_3G4G RF_out_HB4 RF_IN_LB2_3G4G RF_IN_GSM_HB RF_out_LB1 RF_IN_GSM_LB RF_out_LB2 RF_out_LB3 RF_out_GSM_HB RF_out_GSM_LB SDATA RFFE2_DATA U1301 SCLOCK RFFE2_CLK LGE Internal Use Only - 79 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80 3.6.2.2 Checking RF signal path(SW_B1/2/5/8) Refer to 3.5.1.1 START Check TP1 Check SW1101 Soldering Signal is over 21dBm? Check next step LGE Internal Use Only - 80 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 81 3. TROUBLE SHOOTING 3.6.2.3 Checking RF signal path(B1/B2/B5/B8) U1301 <Main Top> C1300 TX_B1 1.5n C1306 C1309 WTR_B1_B2_TX_MB3 2.4n LGE Internal Use Only - 81 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 C1316 TX_B2 2.2n L1311 1.2p C1320 TX_B5 L1313 5.1p C1321 TX_B8 7.5n C1318 C1319 WTR_B5_B8_TX_LB1 FL1300 C1317 LFL18829MTCRD627 LGE Internal Use Only - 82 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 83 Signal is over 3.5dBm Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 83 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 Refer 3.3 Check ASM Block Refer 3.4 Check T/RX Block Refer 3.7 Re-Download & Cal Change the Board LGE Internal Use Only - 84 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85 7. LTE B28 B PRX PATH 8. LTE B40 PRX PATH LTE B1/B3/B7/B8/B20/28A/28B/40 PRX RF PATH 9. Common PATH LGE Internal Use Only - 85 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 D855-LTE3 / D855P-LTE4 FL1203 C1986 L1204 C1215 WTR_B3_B4_PRX_MB1 2.2n 4.7n TX_B3_B4 L1210 0.5p GND1 GND6 GND2 GND5 GND3 GND4 LGE Internal Use Only - 86 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 87 3. TROUBLE SHOOTING START Check FL1202 Check TP1 Signal exist? Check FL1203 Soldering Check TP2 Signal exist? Check next step LGE Internal Use Only - 87 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88 3. TROUBLE SHOOTING 3.7.1.3 Checking RF signal path (B1/B8) U1500 FL1202 <Main Top> LGE Internal Use Only - 88 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 89 Check component above RF Signal path Check TP1/2 Signal exist? Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 89 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 WTR_B7_PRX_HB3 100p 100p C1753 8.2p FL1600 L1606 ANT_TRX_B7 100p C1603 1.5n GND1 GND4 GND2 GND5 GND3 GND6 2655MHz LGE Internal Use Only - 90 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 91 3. TROUBLE SHOOTING START Check U1302 Check TP1Signal exist? Check FL1600 Soldering Check TP2 Signal exist? Check next step LGE Internal Use Only - 91 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 <Main Top> D855-LTE20 / D855P-LTE17 FL1703 L1728 L1716 C1720 WTR_B17_B20_PRX_LB1 8.2n TX_B17_B20 GND1 GND6 GND2 GND5 GND3 GND4 LGE Internal Use Only - 92 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 93 3. TROUBLE SHOOTING START Check U1302 Check TP1Signal exist? Check FL1703 Soldering Check TP2 Signal exist? Check next step LGE Internal Use Only - 93 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94 3.7.1.7 Checking RF LTE SP4T switch (B28 A) Refer to 3.4.2 3.7.1.8 Checking RF signal path (B28 A) FL1655 <Main Top> LGE Internal Use Only - 94 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 95 DPX START Check U1302 Check TP1Signal exist? Check FL1655 Soldering Check TP2 Signal exist? Check next step LGE Internal Use Only - 95 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96 3.7.1.9 Checking RF LTE SP4T switch (B28 B) Refer to 3.4.2 3.7.1.10 Checking RF signal path (B28 B) FL1667 FL1655 <Main Top> LGE Internal Use Only - 96 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 97 DPX START Check U1302 Check TP1Signal exist? Check FL1667 Soldering Check TP2 Signal exist? Check next step LGE Internal Use Only - 97 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98 FL1655 <Main Top> CTRL PORT 1 B28A_B PRX PORT 2 PRX_B28B GRFC_2 FL1752 L1822 L1855 WTR_B28_PRX_LB4 100p PRX_B28A LGE Internal Use Only - 98 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 99 The Problem may be Other part Check High Level Check Logic part of each mode ?(1.5V≤TP ) Check next step LGE Internal Use Only - 99 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100 3.7.1.13 Checking RF signal path (B40) <Main Top> FL1666 C1835 1.8n L1816 3.3n ANT_PRX_B40 WTR_B40_PRX_HB1 5 3 2 LGE Internal Use Only - 100 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 101 3. TROUBLE SHOOTING START Check U1302 Check TP1Signal exist? Check FL1801 Soldering Check TP2 Signal exist? Check next step LGE Internal Use Only - 101 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102 3.7.2.1 Checking DRX Antenna Switching Module (B1/3/8/20/28/40) Refer to 3.4.1.4 3.7.2.2 Checking DRX Antenna Switching Module SW1103 <Main Bot> LGE Internal Use Only - 102 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 103 RFFE2_DATA U1303 SDATA +1V8_VREG_S3A RX04 100p EPAD START Check SW1103 Soldering Check TP1 Signal exist? Check next step LGE Internal Use Only - 103 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 104 3.7.2.3 Checking DRX Antenna Switching Module(B1/3/8/20/28/40) Refer to 3.6.1.4 3.7.2.4 Checking DRX Antenna Switching Module(B1/3/8/20/40) FL1757 FL1760 FL1755 FL1758 U1500 FL1102 <Main Top> LGE Internal Use Only - 104 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 105 C1129 WTR_B20_DRX_LB2 G1 G2 G3 1.8n C1131 3.9p FL1102 C1173 2.7n C1457 L1109 33p WTR_B40_DRX_HB1 5 3 2 LGE Internal Use Only - 105 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 106 Check TP5 Signal exist? Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 106 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 107 3.7.2.5 Checking DRX Antenna Switching Module(B28 A&B) FL1757 FL1760 FL1111 FL1212 FL1755 FL1758 U1500 FL1753 FL1102 <Main Top> LGE Internal Use Only - 107 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 108 G1 G2 G3 100p 4.7n change to 28B Filter FL1212 C1138 C1139 DRX_B28B G1 G2 G3 4.7n 751.0MHz LGE Internal Use Only - 108 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 109 Check TP4 Signal exist? Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 109 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 110 3.7.3.1 Checking LTE PAM DC Power Circuit (B7/B28/B40) Refer to 3.6.2.1 3.7.3.2 Checking LTE PAM DC Power Circuit (B7) U1500 U1601 <Main Top> LGE Internal Use Only - 110 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 111 Check TP1 +1V8_VREG OK? Check Logic part Check DC-DC Power Block Check TP2 Refer to 3.3 0.5V≤TP2≤4.2V? Check next step LGE Internal Use Only - 111 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 112 3. TROUBLE SHOOTING 3.7.3.3 Checking RF signal path(B7) U1500 U1601 FL1600 <Main Top> LGE Internal Use Only - 112 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 113 Refer to 4.3 Check U1653 physical damage or soldering condition And change C1653 to 100 pF Check next step LGE Internal Use Only - 113 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 114 Check TP1 +1V8_VREG OK? Check Logic part Check DC-DC Power Block Refer to 3.3 Check TP2 0.5V≤TP2≤4.2V? Check next step LGE Internal Use Only - 114 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 115 3. TROUBLE SHOOTING +VPA0 RFFE1_CLK RFFE1_DATA SCLK SDATA VBAT C1224 C1853 RFOUT RFIN VCC2 VCC1 2.7n PGND ACPM-9328-TR1 U1653 LGE Internal Use Only - 115 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116 3. TROUBLE SHOOTING 3.7.3.5 Checking RF signal path (B28 A&B) U1653 FL1667 FL1655 <Main Top> LGE Internal Use Only - 116 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 117 3.3n FL1667 C1781 100p C1702 ANT_TRX_B13 L1823 C1706 C1854 GND1 GND6 GND2 GND5 GND3 GND4 close to DPX LGE Internal Use Only - 117 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118 Check TP4 Signal exist? Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 118 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 119 3. TROUBLE SHOOTING 3.7.3.6 Checking LTE PAM DC Power Circuit (B40) U1803 U1653 <Main Top> LGE Internal Use Only - 119 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 120 Check Logic part +1V8_VREG OK? Check TP2 Check DC-DC Power Block Refer to 3.3 0.5V≤TP2≤4.2V? Check next step LGE Internal Use Only - 120 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 121 VBATT C1820 C1819 1.8p ANT_TX_B40 WTR_B40_TX_HB2 RF_OUT RF_IN 4.7n 3.3n 3.6n VCC2 VCC1 100p 5 3 2 PGND LGE Internal Use Only - 121 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 122 Check TP2 Signal exist? Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 122 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 123 3.7.4.1 Checking RF signal path(LTE B1/B3/8/20) Refer to 3.5.1.1 3.7.4.2 Checking RF signal path(LTE B1/3/8/20 output) U1301 U1500 FL1202 <Main Top> LGE Internal Use Only - 123 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124 3. TROUBLE SHOOTING C1300 TX_B1 1.5n C1303 TX_B3_B4 C1721 TX_B17_B20 2.4n C1321 TX_B8 7.5n LGE Internal Use Only - 124 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 125 Signal is over 23dBm? Check MMPA physical damage Check U1301 Soldering or soldering condition Check next step to the INPUT part LGE Internal Use Only - 125 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 126 3. TROUBLE SHOOTING 3.7.4.3 Checking RF signal path(LTE B1/3/8/20 Input) TP10 U1301 U1500 FL1202 <Main Top> LGE Internal Use Only - 126 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 127 C1314 WTR_B3_B4_TX_MB4 C1318 C1319 WTR_B5_B8_TX_LB1 FL1300 C1317 LFL18829MTCRD627 D855-LTE20 / D855P-LTE17 FL1704 C1722 C1302 C1301 WTR_B17_B20_TX_LB3 1.5n TP10 LGE Internal Use Only - 127 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 128 START Check U1500 Soldering Check TP5/TP6/TP7/TP8 Signal exist? Check FL1300/FL1704 Soldering Check TP9/TP10 Signal exist? Check next step LGE Internal Use Only - 128 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 129 C1008 ANT5101 49.9 0.5p FEED TE_1_1H_C-CLIP EAG63730501 5Ghz FEM WL_RFIO_5G REV.B R95111 1K PDET_IN C95159 R95110 C95160 100K LGE Internal Use Only - 129 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130 3. TROUBLE SHOOTING 3.8.1 BT&WIFI WCN3680B (5Ghz FEM) <Main Top> LGE Internal Use Only - 130 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 131 C1014 2.7p PA_VBAT 5GHZ_RX VCC2 SKY85709-11 VCC1 GND4 PA_VBAT GND1 VBAT C95158 C95157 L1003 4.7u C1018 5GHZ_TX SW_5G_PA_EN LGE Internal Use Only - 131 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132 Check the TP2 Signal exist? Check the components around FL1000 Check the TP3 Signal exist? Change MAIN Board. LGE Internal Use Only - 132 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 133 Check the TP1 Signal exist? Ear-jack(FM ant) Check WCN3680 physical damage or Check the components around Antenna soldering condition Change MAIN Board. LGE Internal Use Only - 133 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134 WCSS_FM_SSBI FM_DATA CLK_OUT FM_DATA R95113 WL_EXTPA_CTRL1 BT_CTL WL_EXTPA_CTRL0 BT_CTL BT_SSBI WL_CMD_SET WCSS_BT_SSBI BT_DATA WL_CMD_CLK BT_DATA WL_CMD_DATA2 WL_CMD_DATA1 WL_CMD_DATA0 LGE Internal Use Only - 134 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 135: Gps Part
Refer 3.1 Check Transceiver DC Power supply Block Refer 3.2 Check GPS RF Block Re-Download Change the Board LGE Internal Use Only - 135 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 137 C5210 TP5201 TP4201 C5211 C5208 TP4200 C4200 C4201 R5203 L4203 CN5200 C5204 C4903 L4900 C4211 C4208 C4213 LGE Internal Use Only - 137 - Copyright © 2014 LG Electronics. Inc. All right reserved. C4902 Only for training and service purposes...
Page 138 Check Logic part Check Next step +2V7_VREG_L16 C1460 GND3 C1118 CELL U1102 1.8n GND1 GND2 R155 100p GNSS_A GNSS_B GNSS_ELNA_EN LGE Internal Use Only - 138 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 139 ( DGMS Guide ) MC-C00002-14 : ESD Protection Circuit NEAR TO WTR C1147 5.1p GNSS_IN_N GNSS RX C1156 5.1p GNSS_IN_P LGE Internal Use Only - 139 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 140 Check TP4 Signal exist? Not good Check Transceiver physical damage Replace U1500 or soldering condition Check next step LGE Internal Use Only - 140 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 141: Nfc Part
3. TROUBLE SHOOTING 3.10 NFC Part NFC RF PATH CN5202 U5200 CN5200 BOTTOM LGE Internal Use Only - 141 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 142 NFC_CLK_REQ CLK_REQ PWR_REQ VMID EAN62632401 VDHF +1V8_VREG_S3A PVDD SAP_DCDC NFC_VPWR VBAT SAM_DCDC NFC_VPWR DVDD VBAT_DCDC C5219 C5222 C5220 LGE Internal Use Only - 142 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 143 Check or Replace U4100 Signal of C117(TP1)is 19.2MHZ ? Check or Replace U5200 C120(TP2) Voltage is +1.8V ? Replace Main Board LGE Internal Use Only - 143 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 144: Power
Check the pins(X4100) 19.2MHz? Check that PON_RESET_N U4100(Check PM8941) (TP4101) is 1.8V MSM_PS_HOLD(R4103) U2100(Check MSM8974) is High? Replace Main Board LGE Internal Use Only - 144 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 145 3. TROUBLE SHOOTING CN11003 R11006 PHONE_ON_N TOL=0.01 R11007 KEY_DOWN R11005 KEY_UP 02/19 C11004 C11008 100n CN11003 <Main Bot> LGE Internal Use Only - 145 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 146 +0V95_VREG_S1B L4200 470n +0V9_VREG_S2B REV.B L4201 470n +1V15_VREG_S3B REV10 12/20 L4202 2.2u +0V9_VREG_S4B L4203 470n REV.B <Main Bot> LGE Internal Use Only - 146 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 147 C2303 C2304 C2305 C2306 C2307 C2308 C2309 C2310 C2311 C2312 C2398 C2399 12/26 12/20 TP4102 TP4101 <Main Top> LGE Internal Use Only - 147 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 148: Charger
VBUS1 PGND2 PSEL PGND1 U4700 EXT_CHG_PG SYS2 BQ24296GRER STAT SYS1 EXT_CHG_STAT BAT2 GAUGE_I2C_SCL BAT1 GAUGE_I2C_SDA U4700 <Main Top> LGE Internal Use Only - 148 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 149 Is the uUSB Cable voltage 5.0V BATT_FET_N state is correct? Is it charging properly After turning on? Change the main board LGE Internal Use Only - 149 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150: Audio
3. TROUBLE SHOOTING 3.13 Audio 3.13.1 Overview MSM8974 AC (U2100) It placed under memory <Main Top> WCD9320 (U6100) <Main Bot> LGE Internal Use Only - 150 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 151 Note: GND island for Speaker driver, (GND_SPKDRV) with C6100 is to isolate speaker driver noise from other circuits. Refer to 80-NA556-5 for details. LGE Internal Use Only - 151 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 (L6204,L6203) Speaker signal OK? 2. Check Main PCB part (Speak Amp) (FB6201,FB6202) Speaker signal OK? Change Main Board LGE Internal Use Only - 152 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 153 3. TROUBLE SHOOTING FB6202(TP5) FB6201(TP6) L6204(TP3) ANT10002(TP1) L6203(TP4) ANT10003(TP2) <Main Bot> LGE Internal Use Only - 153 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154 2. Check PCB part (L6204_TP3, L6203_TP4). Speaker sound OK? 3. Check PCB part (FB6201_TP5, FB6202_TP6). Speaker sound OK? LGE Internal Use Only - 154 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 155 Can you hear a sound? 2. Check Main PCB inductor (FB6923 / FB6924). Sound OK? Change Main Board LGE Internal Use Only - 155 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 You must check the voice recording test first. After voice recording, if you could hear the recorded sound, It is nor MIC fault And receiver path or parts is something wrong. LGE Internal Use Only - 156 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 157 2. Check parts about Mic Bias(1.77V) (VA6923) works well ? 3. Check parts about Mic Output (FB6920) works well ? Change Main Board LGE Internal Use Only - 157 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 2. Check parts about Mic Bias(VA6923_TP11) works well (about 1.77V) ? 3. Check parts about Mic Output (FB6920_TP12) works well ? – waveform moves with oscilloscope LGE Internal Use Only - 158 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 159 MIC Out Signal (Idle) Normal Moves(Dynamic) MIC Out Signal (Voice Input) Malfunction 1.31V (fixed) MIC Out Signal (Idle and Voice Input) LGE Internal Use Only - 159 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160 2. Check Mic Bias(1.77V) (VA6928) works well ? 3. Check Mic Output (FB6921) works well ? Change Main Board LGE Internal Use Only - 160 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 161 2. Check parts about Mic Bias(VA6928_TP13) works well (about 1.77V) ? 3. Check parts about Mic Output (FB6621_TP14) works well ? – waveform moves LGE Internal Use Only - 161 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 162 3. TROUBLE SHOOTING Sub_MIC1 MIC6921 FB6921 1800 SUB_MIC2_P SUB_MIC2_N SUB_MIC1_BIAS EAB62909301 SPH0611LR5H 12/20 TP14(MIC output) TP13(MIC Bias) <Main Bot> LGE Internal Use Only - 162 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 163 2. Check Mic Bias(1.77V) (VA6926) works well ? 3. Check Mic Output (FB6922) works well ? Change Main Board LGE Internal Use Only - 163 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 164 2. Check parts about Mic Bias(VA6926_TP15) works well (about 1.77V) ? 3. Check parts about Mic Output (FB6622_TP16) works well ? – waveform moves LGE Internal Use Only - 164 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 165 3. TROUBLE SHOOTING Sub_MIC2 MIC6923 TP15 FB6922 1800 MIC_IN3_P MIC_IN3_N TP16(VA6926) SUB_MIC2_3_BIAS EAB62909301 SPH0611LR5H TP15(MIC Bias) TP16(MIC output) <Main Bot> LGE Internal Use Only - 165 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166 1. Check the left signal and detection line short when headset inserted? Check PCB. EAR JACK Linle TP17,TP18 headset? Change Main Board LGE Internal Use Only - 166 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 167 100n HPH_REF FB6610 1000 EAR_MIC_JACK GND Close to EarJack L6002 FM_ANT 2.2n FOR EU_CE_EMC_CS C6706 C6704 C6705 12/20 LGE Internal Use Only - 167 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 168 Check the Mic signal by Voice recording. 1. Check parts about Mic Bias(1.8V) works well ? Change Touch FPCB Board LGE Internal Use Only - 168 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 169 100n HPH_REF FB6610 1000 EAR_MIC_JACK GND Close to EarJack L6002 FM_ANT 2.2n FOR EU_CE_EMC_CS C6706 C6704 C6705 12/20 LGE Internal Use Only - 169 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 170 TP1 : 1.8V TP2 : 5.5V TP3 : -5.5V Change the LCD Module Change the Main Board LCD Display Ok? LGE Internal Use Only - 170 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 172 3. TROUBLE SHOOTING 12/20 10/29 CN7100 10/11 +5V5_DDVDH +1V8_VREG_L12 REVB_0206 -5V5_DDVDL <Main Bot> LGE Internal Use Only - 172 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 173: Touch
Touch operate OK? TP1 : 3.3V TP2 : 1.8V Change the Main Board TP3 : 1.8V TP4 : 1.8V LGE Internal Use Only - 173 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 175 3. TROUBLE SHOOTING +3V3_VREG_L22 +1V8_VREG_LVS3 CN7200 TOUCH_I2C_SCL TOUCH_RESET_N TOUCH_I2C_SDA TOUCH_INT LCD_HSYNC TOUCH_MAKER_ID ENBY0051001 GB042-10S-H10-E3000 C7200 C7206 0.1u 10/16 <Main Bot> LGE Internal Use Only - 175 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 176: Sensor
Change the Compass Sensor IC(U8200) Compass Sensor function is OK? Change the Main board Compass Function is OK? LGE Internal Use Only - 176 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 177 3. TROUBLE SHOOTING SENSOR0_I2C_SCL SENSOR0_I2C_SDA EAN62986601 U8200 HSCDTD008A U8200 TEST1 +3V0_VREG_L17 AVDD TEST0 +1V8_VREG_LVS1 COMPASS_INT U8200 <Main Bot> LGE Internal Use Only - 177 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 178 LCD brightness change? Check +3V0_VREG_L17(TP1) Output work well? Change the main board Change the Proximity Sensor Function is OK? LGE Internal Use Only - 178 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 179 EAN62568201 U8400 APDS-9930-200 R8400 +3V0_VREG_L17 SENSOR1_I2C_SDA PROXIMITY_INT SENSOR1_I2C_SCL R8401 +1V8_VREG_S3A LEDK LEDA C8400 C8401 D4604 D4605 <Main Top> LGE Internal Use Only - 179 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 180 & I2C_Sensor_SDA & SCL & PROX_AMBIENT_INT_N Output work well? Change the main board Change the Proximity Sensor Function is OK? LGE Internal Use Only - 180 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 181 APDS-9930-200 R8400 +3V0_VREG_L17 SENSOR1_I2C_SDA PROXIMITY_INT SENSOR1_I2C_SCL U8400 R8401 +1V8_VREG_S3A LEDK LEDA C8400 C8401 D4604 D4605 U8400 <Main Top> LGE Internal Use Only - 181 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 182 Function is OK? Change the Gyro+Acc Sensor IC(U8100) Gyro function is OK? Change the Main board Function is OK? LGE Internal Use Only - 182 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 183 SENSOR1_I2C_SDA +3V0_VREG_L17 10/14 NC10 U8100 U8100 MPU-6515 12/23 TP11000 +1V8_VREG_LVS1 GYRO_INT 12/23 Slave Address 1101000 U8100 <Main Bot> LGE Internal Use Only - 183 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 184 +1.8V_VREG_S3A (C8901) TP1 (R8900) TP2 Check TR Input ( IRRC ) signal Sensor LED Woks OK ? Change(U11002) LGE Internal Use Only - 184 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 185 P0.0/RX0/MOSI/INT0 IRTX +1V8_VREG_S3A IRRC_UART_RX P0.1/TX0/MISO/INT1 P1.4/TCK P0.2/SCL/SCLK/INT2 P1.5/TDI P0.3/SDA/SSEL/INT3 P1.6/TMS P1.7/TDO P0.4/TBA0/INT4 P0.5/TBB0/INT5 10/11 10/11 U8900 <Main Top> LGE Internal Use Only - 185 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 186: Usb/Slimport
Change the Slimport IC(U7601) Video output OK? Change the FL7600 Video output OK? Change the Main board Video output OK? LGE Internal Use Only - 186 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 187 3. TROUBLE SHOOTING +1V8_VREG_S3A DVDD18_1 DVDD18_2 AVDD18 AVDD33_IN1 +3V3_SLIMPORT_AVDD AVDD33_IN2 0.3mm +1V8_VREG_S3A HDMI_VT <Main Top> LGE Internal Use Only - 187 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 188: Camera
TP5, TP6 : 2.8V TP7 : 24MHz Change the Camera module Camera is OK? Change the Main Board LGE Internal Use Only - 188 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 189 2.2u 0.1u CN7900 CAM0_I2C_SDA CAM0_I2C_SCL +1V0_VREG_L3 +1V8_13M_VDDIO MAIN_CAM0_RESET_N MAIN_CAM0_MCLK MAIN_CAM0_MIPI_DATA3_P MAIN_CAM0_MIPI_DATA3_N MAIN_CAM0_MIPI_DATA2_P MAIN_CAM0_MIPI_DATA2_N +2V7_13M_ANA FL7901 C7906 ZD7901 4.7u LGE Internal Use Only - 189 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 191 TP2 : 1.8V TP3 : 2.7V TP4 : 24MHz Change the Camera module Camera is OK? Change the Main Board LGE Internal Use Only - 191 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 193 ZD7400 CN7400 +2V7_VREG_L18 11/8 +1V2_DVDD_VT +1V8_VREG_LVS2 CAM1_I2C_SDA CAM1_I2C_SCL VT_CAM_RESET_N EAG63789801 BM15FR0_8-20DP-0_325V C7402 C7403 4.7u 4.7u RCLAMP7522T D7400 EAH61892901 LGE Internal Use Only - 193 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 194: Download
Ver_3.8.1 Please Check the Version to “B2B” Name Part No. D/L Cable Micro 5P (56-open-910K) USB DLC RAD32167835 LGE Internal Use Only - 194 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 196 4. DOWNLOAD LGD855 LGD855_20140526_LGFLASHv160_Download LGD855 LGE Internal Use Only - 196 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 206 4. DOWNLOAD LGD855 LGD855_20140526_LGFLASHv160_Download LGD855_20140526_LGFLASHv160_Download LGD855 LGD855AT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGD855 LGE Internal Use Only - 206 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 207 4. DOWNLOAD LGD855 LGD855_20140526_LGFLASHv160_Download LGD855 LGD855AT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGD855 LGD855 LGE Internal Use Only - 207 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 211: Block Diagram
SAW 내장 (3X4) DRX_LB2(B20) B17/B28B DRX_LB4(B13/17/28B) ANT4 2nd SPDT B7/40/GPS PRX_MB3(B3/B4) DRX_HB1(B40) SPDT LNA+SAW DRX_HB3(B7) DRX_MB2(B3) WFR1620 PRX_MB2(B3) SPDT LGE Internal Use Only - 211 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 212 BT_WAKEUP 2 line WIFI_WAKEUP/POWER ON /BT_Reset 3 line I2S_FM 3 line Sleep CLK 32.768kHz FM_ANT PM8941 PM8941 GPIO_16HS XO_OUT_D1 GPIO_32 LGE Internal Use Only - 212 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 213: Only For Training And Service Purposes
VDD_S1 VDD_TORCH +5V0_OTG_OVP VDD_S2 VDD_S3 +VPWR External Charger VCHG VPH_PWR VDD_FLASH BATT +VPWR For Fastboot VBAT VDD_GPLED/RGB VBAT LGE Internal Use Only - 213 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 214 Load Battery Switch VDD_PON VDD_MSM_IO VBAT_SENSE_P QSTRT BMS_CSP +1V8_VREG_S3A Fuel Gauge VBAT_SENSE_M BMS_CSN (MAX 17048) Option for BMS LGE Internal Use Only - 214 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 215 GPIO_36 Charger (BQ51013BYFPR) FEED Filter USB_IN External Chager VBAT WLC_OFF FEDD FEDD WLC_5V_OUT +5V0_OTG_OVP FEED WL_CHG_INT WL_CHG_FULL FEED LGE Internal Use Only - 215 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 216 HSYNC GPIO_8 HSYNC +3V3_VREG_L22 +1V8_VREG_LVS3 VREG_L22 PMIC VOUT_LVS3 PM8941 LCD_MAKER_ID LCD_MAKER_ID LCD_MAKER_ID LCD_RESET_N GPIO_19 RESET +1V8_VREG_L10 VREG_L10 IOVCC LGE Internal Use Only - 216 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 217 20pin(A1) VOUT_LVS2 (1.8V, 300mA) GPIO_22 +2V7_VREG_L18 - VT_CAM_MIPI_CLK_P VREG_L18 (2.7V, 300mA) VT_CAM_MIPI_CLK_P VT_CAM_MIPI_CLK_N VT_CAM_MIPI_CLK_N VT_CAM_MIPI_DATA0_P VT_CAM_MIPI_DATA0_P VT_CAM_MIPI_DATA0_N VT_CAM_MIPI_DATA0_N LGE Internal Use Only - 217 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 218 SENSOR0_I2C_SDA AK8963C +3V0_VREG_L17 SENSOR0_I2C_SCL ASAHI KASEI IRRC_RESET_N +1V8_VREG_S3A GPIO_78 IRRC_UART_TX IRRC GPIO_85 MAXIM MAXQ616V IRRC_UART_RX IR_LED GPIO_86 EAV62193601 LGE Internal Use Only - 218 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 219 IMIC3_INN SUB MIC1 EAR_SENSE_JACT SUB_MIC2_P MIC5_INP EAR_MIC_JACT SUB_MIC2_N MIC5_INN BT/WIFI UART HPH_REF SUB MIC2 MODULE HPH_REF (BCM4339) SDIO LGE Internal Use Only - 219 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 220: Circuit Diagram
SC1101 SC1102 SC1103 SC1104 rev10 MGJ64064201 C1987 L1213 B1 PRX WTR_B1_PRX_HMB4 100p 100p REV10_Coaxial Cable Y-Clip added. (03/28) - 220 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 221 C1605 C1603 WTR_B7_TX_HB1 RFOUT RFIN 4.7p 1.5n GND1 GND4 SDTA GND2 GND5 GND3 GND6 PGND 2655MHz MIPI APT - 221 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 222 SCLK 0.1u LM3263 SVDD C1156 5.1p R1101 RFFE1_DATA SDATA GNSS_IN_P PA_THERM_0 PGND REV10 L1301 1.5u +VPA0 C1338 C1337 - 222 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 223 PRX_HB_CA_OUT GND50 DRX_LB_CA_OUT GND51 DRX_MB_CA_IN GND52 DRX_HB_CA_OUT GND53 GND54 GND58 GND55 GND59 GND56 GND60 GND57 GND61 GND62 GND63 - 223 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 224 BE49 EBI1_ZQ R2126 (1%) MSM_UART_TX C9300 11/26 LAYER_ALIGN PID1 Daisy_Chain DLA_1 DLA_2 DLA_7 DLA_3 DLA_6 DLA_4 DLA_5 LAYER_ALIGN_7P - 224 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 225 OUTPUT CAPACITORS CLOSE TO MSM VDD_CORE plane. Do not short the VDD_SDC_CDC, VDD_PLL1 pins directly to the main VDD_CORE plane. - 225 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 226 GND_133 AE29 GND_212 GND_134 AW45 AE31 GND_211 GND_135 AW27 AE33 GND_210 GND_136 AE37 GND_209 GND_137 AE39 GND_208 GND_138 - 226 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 227 NC24 NC115 NC25 NC117 NC26 NC118 NC27 NC120 NC28 NC121 NC29 NC122 NC30 NC123 TP3212 TP3209 TP3210 TP3211 - 227 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 228 311HR-VG1 100K SMZY0023501 100K 0.900 100K 130K 1.017 D10000 12/26 100K 1.800 100K 0.000 REV.B REV.B REV.B REV.B - 228 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 229 * CONNECT REMOTE_GND_SNS GROUND TO MSM GROUND WITH SINGLE TRACE REMOTE_GND_SNS * Route +0V9_VSENSE_KRAIT and REMOTE_GND_SNS as a differential - 229 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 230 PGND2 PGND3 COMMON_I2C_SDA PGND4 COMMON_I2C_SCL AGND C4952 22uF DNI C4950 C4951 10uF DNI GND directly using dedicated via - 230 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 231 SC13004 SC13005 SC13007 SC13008 SC13009 SC130010 SC130012 SC130014 SC130015 SC130016 SC130017 SC130019 SC130020 SC130021 SC130022 SC130024 SC130025 OJ13002 - 231 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 232 ZD201 R5206 2.7K DVDD VBAT_DCDC NFC_VPWR C5218 NFC_RX_N C5219 C5220 C5222 X-Tal deleted 1/2 REV10 R5207 NFC_VPWR +VPWR - 232 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 233 50pF value for ESD protection with d-class amp SUB_MIC2_3_BIAS When USE) TVS devices's Working Voltage must be greater than the Path voltage EAB62909301 SPH0611LR5H - 233 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 234 FOR EU_CE_EMC_CS C6706 C6704 C6705 12/20 Place Close to the EJ Conn. 12/24 w. Thru Via to Large GND - 234 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 235 LCD_LED_C2 HWEN HVLED2 HVLED3 TOUCH_I2C_SCL LCD_PWM TOUCH_RESET_N rev10 TOUCH_I2C_SDA TOUCH_INT LCD_HSYNC TOUCH_MAKER_ID ENBY0051001 GB042-10S-H10-E3000 C7200 C7206 0.1u 10/16 - 235 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 236 BM15FR0_8-20DP-0_325V 1/23 VT_DVDD_LDO_Deleted +1V8_VREG_S3A ZD7400 C7402 C7403 4.7u 4.7u RCLAMP7522T D7400 EAH61892901 U7303 RP103K121D-TR VOUT +1V2_DVDD_VT VT_CAM_EN C7404 - 236 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 237 OUT3 10/11 OUT4 C4753 C4754 U4751 OUT5 MAX14670EWL+T EAN62773901 OVLO ACOK OTG_EN ACOK WL_CHG_INT TVS deleted 10/11 WLC_OFF - 237 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 238 OTG : PSEL HIGH & OTG HIGH IIN LIMIT 500mA OTG LOW IIN LIMIT 100mA ILIM : set the maximum input current limit - 238 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 239 D9201 VBUS GND4 SLIM0_USB_HS1_D_M SLIM0_USB_HS1_D_P GND3 SLIM0_USB_HS1_D_P SLIM0_USB_HS1_D_M GND2 C_BUS_ID C_BUS_ID GND1 FL9202 USB_SS_TX_M USB_SS_TX_P REV.B BOM DNI - 239 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 240 CLK2 EAG63310801 NFC_SWP 1041681610 UIM1_DATA SDCARD_DATA_0 DAT0 SDCARD_DATA_1 RESERVED2 DAT1 SDCARD_DET 10/11 11/8 C9501 10/11 10/11 12/20 12/20 - 240 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 241 C11005 C11006 C11007 D12005 02/19 C11004 C11008 100n Lower FPCB D11003 02/24 2/17 top contact change 11/13 Deleted - 241 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 242 11/13 RGB LED 12/10 10/25 R4608 RED_LED_DRV R4609 BLUE_LED_DRV Deleted R4610 GREEN_LED_DRV EAV62251901 CL-503S-TCC-SD-T LD4602 D4603 RCLAMP7522T EAH61892901 - 242 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 243 CLAMP2_1 C18014 0.47u CLMAP2_2 REV10 C18015 10n BST2 0.25 mm GAUGE_I2C_SCL GAUGE_I2C_SDA WLC_OFF EN_B CHG_END STAT_B WLC_FULL_CHG rev.B - 243 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 244 7. BGA PIN MAP 7. BGA PIN MAP U6100_WCD9320_IC,Audio Codec(Top view) U6100_WCD9320_IC,Audio Codec(Top view) Not Used LGE Internal Use Only - 244 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 245 7. BGA PIN MAP U18000_IC,Charger_IDTP9025A (Top View) U18000_IC,Charger_IDTP9025A (Top View) Not Used LGE Internal Use Only - 245 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 246 7. BGA PIN MAP U4200_PM8841_PMIC(TOP view) U4200_PM8841_PMIC(TOP view) Not Used LGE Internal Use Only - 246 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 247 7. BGA PIN MAP U3200_eMMC(TOP_view) U3200_eMMC(TOP_view) Not Used LGE Internal Use Only - 247 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 248 7. BGA PIN MAP PN547/C2_NFC Controller U5200_PN547/C2_NFC Controller Not Used LGE Internal Use Only - 248 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 249 7. BGA PIN MAP U8900_IC,Microprocessors(Bottom view) U8900_IC,Microprocessors(Bottom view) Not Used LGE Internal Use Only - 249 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 250 7. BGA PIN MAP U1300_IC,DC-DC Converter U1300_IC,DC-DC Converter Not Used LGE Internal Use Only - 250 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 251 7. BGA PIN MAP U7601_IC,Signal Bridge U7601_IC,Signal Bridge Not Used LGE Internal Use Only - 251 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 252 U95100_WCN3680B_IC,WiFi (Top View) 7. BGA PIN MAP U95100_WCN3680B_IC,WiFi (Top View) Not Used LGE Internal Use Only - 252 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 253 7. BGA PIN MAP U2100- MSM8974AC (TOP view)_(9등분하여 Not used pin 표시) U2100- MSM8974AC (TOP view)-1/2/3 LGE Internal Use Only - 253 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 257 7. BGA PIN MAP U1500 – WTR1625L (Top View) U1500 – WTR1625L (Top View) Not Used LGE Internal Use Only - 257 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 258 7. BGA PIN MAP U4100-PM8941 (TOP VIEW) U4100-PM8941 (TOP VIEW) Not Used LGE Internal Use Only - 258 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 259 7. BGA PIN MAP U6200_IC,Speaker Amplifier(Top view) U6200_IC,Speaker Amplifier(Top view) Not Used LGE Internal Use Only - 259 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 260 7. BGA PIN MAP U6420_IC,Comparator(Top view) U6420_IC,Comparator(Top view) ALL USED LGE Internal Use Only - 260 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 261 7. BGA PIN MAP U4750,U4751_IC,over voltage protection(Top view) U4750,U4751_IC,over voltage protection(Top view) Not Used LGE Internal Use Only - 261 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 262 7. BGA PIN MAP U3100_LPDDR3_SDRAM(Top View) U3100_LPDDR3_SDRAM(Top View) ALL USED LGE Internal Use Only - 262 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 263: Pcb Layout
- no B28A Power U1653 : B28 PA - no B28 Power FL1208 : Filter - no B7 diversity LG-D855-MAIN_EAX65863601_1.0_TOP-1 SC1103 - 263 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 264 FL1600 : Duplexer B7 - no Power - no Service U1601 : PA - no B7 Power SC1103 LG-D855-MAIN_EAX65863601_1.0_TOP-2 - 264 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 265 ANT1113 : GND Contact L1323 L1322 FL1211 : Tunable IC GSM W L1324 Band1/2/5,8 LTE Band1,3,8,20 - no Service LG-D855-MAIN_EAX65863601_1.0_TOP-3 - 265 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 266 - no OVP Function U4750 : OVP - no OVP Function U3200 : EMMC - no BootingReset LG-D855-MAIN_EAX65863601_1.0_BOT-1 - 266 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 267 - no Mic Function ANT1102 : Ant1 feed GSM W Band1/2/5,8 LTE Band1,3,8,20 - no Service - no Power LG-D855-MAIN_EAX65863601_1.0_BOT-2 - 267 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 268: Calibration
How to connect between CMW500 and RF800A ; It has to connected as below - CMW500 [RF1COM] to RF-800A [left COM], - CMW500 [RF2COM] to RF-800A [Right COM] LGE Internal Use Only - 268 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 269 9. CALIBRATION D855 MS695 [TachyonV48] LGD855 20140705 ALL File Calibration [Tachyon36]LGMS695_20120213_Calibration LGE Internal Use Only - 269 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 273 9. CALIBRATION LGD855 LGD855 LGD855 LGD855 LGD855 LGD855 LGD855 LGD855 LGD855 LGE Internal Use Only - 273 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 275 RF Connection Cable 5.3V USB cable (A-B type) (P/No : BJAY0020060) MS-156C BJAY0024004 GPIB cable (IEEE-488) (P/No : BJAY0020058) RAD32167861 LGE Internal Use Only - 275 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 284 9. CALIBRATION LGD855 LGD855 LGD855 LGD855 LGD855 LGD855 LGD855 LGE Internal Use Only - 284 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 287: Hidden Menu
-> All Auto Test - Full menu click -> Continuous information on the menu, giving you ability test LGE Internal Use Only - 287 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 288 Ear Pone wrong, TA, Battery , OTG Test Key Press Test - Check Key Press, Proximity sensor Camera(Main)Test - Main Camera Test Preview and Result LGE Internal Use Only - 288 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 289 - Check Front-Bottom 3 LED (Left/Right menu & Home Button) - Touch ‘Pass’ -> Check Change the White color LGE Internal Use Only - 289 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 290 10. HIDDEN MENU Ring test Vibrator test IrRC Master Phone IrRC Test LGE Internal Use Only - 290 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 291 Touch window test - Write with finger Motion Sensor Test - Check Magnetic, Accelerometer, Gyroscope Sensor GPS BT WIFI Test LGE Internal Use Only - 291 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 292 10. HIDDEN MENU HDMI Test : Using HDMI output NFC Test FM Radio LGE Internal Use Only - 292 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 293 10. HIDDEN MENU Loopback Test : Audio Sensor Test Touch Draw Auto LGE Internal Use Only - 293 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 294 - Tuning for Ambient Light Sensor - ABS On/Off Test ELT Test Automatic Mode ->Test Automatically Manual Mode : Test selectivity LGE Internal Use Only - 294 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 295 - USB Set for Data - BT Set for Data - UART Set for Data - NULL port LGE Internal Use Only - 295 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 296 - Auto Answer - Upsell URL - ATS Start Property on - Update Touch Firmware APN Delete FastDormancy LGE Internal Use Only - 296 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 297 • LTE Data Test - Port Forwarding Test On/Off - Auto Tethering Test On/Off - Tethering Mode - Rmnet AutoConnect Mode LGE Internal Use Only - 297 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 298 - Clear database - Set Profile - Enable Save log Charging Test - You can Battery Log Save On/Off LGE Internal Use Only - 298 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 299 10. HIDDEN MENU GNSS Test GPS Test Fake Language Connectivity Test LGE Internal Use Only - 299 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 300 10. HIDDEN MENU Battery Test Call Test - Auto Call Test - VC Auto Answer - Call Duration CMAS_RMT LGE Internal Use Only - 300 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 301 Prx Drx On Off - Prx Drx On Off->LTE + WCDMA SMS Test SMS Test -> GCF Memory full SMMA Test LGE Internal Use Only - 301 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 302 HDMI Test • Change Resolution • Play Video MLT Test - Application Name - Last Update - Enable LGE Internal Use Only - 302 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 303 10. HIDDEN MENU NFC Test - NFC test menu Thermal Daemon Mitigation OFF DM APP Enable/Disable LGE Internal Use Only - 303 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 305 10. HIDDEN MENU ATS Start Property On/OFF High Temperature Property OFF LG RCT LGE Internal Use Only - 305 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 306 - Subscriber (Emergency) - Aos - SIP - VoLTE - Media - SMS - Test Slimport Test Factory Reset LGE Internal Use Only - 306 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 307 - MMS Debug mode ON - MMS Debug mode OFF - TestBed Setting => not used MirrorLink Test QCRIL LOG ADB ON LGE Internal Use Only - 307 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 309: Disassemble Guide
11. DISASSEMBLE GUIDE 11. DISASSEMBLE GUIDE 1. Disassemble Rear Cover, Main antenna Disassemble screw (12ea) Disassemble Rear Cover LGE Internal Use Only - 309 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 311 11. DISASSEMBLE GUIDE 2. Disassemble Main PCB Disassemble connector Disassemble Main PCB LGE Internal Use Only - 311 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 312 11. DISASSEMBLE GUIDE 3. Disassemble H/W parts Disassemble H/W parts (6ea) LGE Internal Use Only - 312 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 313 11. DISASSEMBLE GUIDE 4. Disassemble Gasket, pad Disassemble Gasket touch IC Disassemble Pad LCD FPCB Disassemble Gasket LCD FPCB LGE Internal Use Only - 313 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 314 5. Complete disassembling D855 Gasket LCD FPCB Pad LCD FPCB (LCD FPCB ) (LCD) Gasket touch ic (LCD FPCB) LGE Internal Use Only - 314 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 315: Exploded View & Replacement Part List
PCB Assmebly, Flexible SC000 Can, Shield MBL01 EBR00 PCB Assmebly, Sub FAB01 S crew, Machine SC001 Can, Shield - 315 - LGE Internal Use Only Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 316 LGF400L.ALGTWH WH:WHITE WHITE - Assembly,Metal LGD855.A6D2TN BK:BLACK BLACK LG- AGF000000 Package Assembly AGF77485801 D855(B2 Global) 6D2(STD UB/English USP LB/Seal_UB2/Body/Cap/600ea) LGE Internal Use Only - 316 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 317 BLM03AX241SN1D 240 ohm 0.6X0.3X0.33 FB1000 Filter,Bead EAM62471001 25% 0.38 ohm 0.35A SMD R/TP 2P 0 FB95101 MURATA MANUFACTURING CO.,LTD. LGE Internal Use Only - 317 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 318 D5201 0DBM 0DB 0% 0A 0A 0DB 0DBM FL1202 EAT62373101 Rx Module 0DBM 40P 5.0x4.0x1.0MM - EPCOS PTE LTD. LGE Internal Use Only - 318 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 319 FL1704 Filter,Saw EAM62690401 EPCOS PTE LTD. XMSS1R6G0PA-001TMP 0.2~0.5dB 17~35dB FL1752 Filter,SeparatorSwi EAM62730001 20dBm - MURATA MANUFACTURING FL1753 CO.,LTD. LGE Internal Use Only - 319 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 320 FILTER 0HZ 0F 0H SMD R/TP Common mode FL7600 Filter,LCR EAM62451101 Impedance at 100MHz : 35ohm+-30%, DC Resistance Max :3.0ohm INNOCHIPS TECHNOLOGY LGE Internal Use Only - 320 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 321 PRESS SUS 0.15 LGD855.ADEUWH MBK070300 Can,Shield MBK63852701 ZZ:Without Color - PRESS STS 0.15 LGD855.ADEUWH ZY:Color MBK070301 Can,Shield MBK64052901 Unfixed - LGE Internal Use Only - 321 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 322 MCQ67705301 BLACK - COMPLEX LGF400L.ALGTWH BK:BLACK MCQ000002 Damper MCQ68006201 BLACK - COMPLEX LGVS985.AVRZTN ZY:Color Unfixed MCQ000003 Damper MCQ68125301 LGE Internal Use Only - 322 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 323 Gasket MDS64814401 COMPLEX LGF400L.ALGTWH ZZ:Without MDS01 Gasket MDS64610901 Color - COMPLEX MECH_COMMON ZZ:Without MET099500 Insert,Nut MICE0016907 Color - LGE Internal Use Only - 323 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 324 MEZ65347401 WHITE Nexus5(D820) Seal label (50*25) PRINTING LGW100.AUSGBK ZZ:Without Color MEZ084100 Label,Unit Box MEZ65773003 Unit Box STD Label_75*40 LGE Internal Use Only - 324 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 325 Color - COMPLEX LGF400L.ALGTWH ZZ:Without MJN000003 Tape MJN68907001 Color - COMPLEX LGF400L.ALGTWH ZZ:Without MJN000004 Tape MJN68847601 Color - LGE Internal Use Only - 325 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 326 MKC64978802 BLACK - MOLD PC LGF400L.ALGTWH BK:BLACK BLACK MKC041800 Window,IRDA MKC65178801 R106 Wire Pad,Short SAFP0000401 AX3100 ATL SV_SHIPBACK,MAIN,A LGE Internal Use Only - 326 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 327 Resistor,Chip ERHY0009516 R2109 R/TP - ROHM. R2116 MCR006YZPF1801 1.8KOHM 1% 1/20W 0603 Resistor,Chip ERHY0009306 R2117 R/TP - ROHM. LGE Internal Use Only - 327 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 328 R/TP - ROHM. R5200 R2156 R2400 MCR006YZPJ105 1MOHM 5% 1/20W 0603 Resistor,Chip ERHY0009507 R2401 R/TP - ROHM. R5200 LGE Internal Use Only - 328 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 329 ERHY0009506 R/TP - ROHM. R95110 R4400 MCR006YZPJ104 100KOHM 5% 1/20W 0603 R8901 Resistor,Chip ERHY0009506 R/TP - ROHM. R95110 LGE Internal Use Only - 329 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 330 1005 R/TP - VISHAY INTERTECHNOLOGY ASIA PTE LTD R6118 RC0201FR-0710RL 10OHM 1% 1/20W 0603 Resistor,Chip EBC62036001 R6119 R/TP - YAGEO CORPORATION LGE Internal Use Only - 330 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 331 RAA050100 Resin,PC BRAH0001303 UF2040 or 3075BHF . . NONE RAA050101 Resin,PC BRAH0001304 UF2040 or 3075BHF . . NONE LGE Internal Use Only - 331 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 332: Main Component
C100 Ceramic ECZH0000813 55TO+125C 1005 R/TP - TDK KOREA C102 Chip COOPERATION C1002 Inductor LG HK 0603 1N2S-T 1.2NH 0.3NH - 450mA - - C1451 Multilayer EAP62227001 0.12OHM 10GHZ 4 SHIELD - 0.6X0.3X0.3MM L1112 Chip R/TP TAIYO YUDEN CO.,LTD Capacitor,Ceramic...
Page 333 MECHANICS CO., LTD. C2327 C2328 C2329 C2330 C2335 C2336 C2337 C2338 C2339 C2340 C2341 C2342 C2343 C2344 C2345 LGE Internal Use Only - 333 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 334 C2365 C2366 C2367 C2368 C2369 C2370 C2372 C2374 C2375 C2380 C2381 C2382 C2383 C2384 C2385 C2386 C2387 C2388 LGE Internal Use Only - 334 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 335 C4126 C4128 C4130 C4131 C4132 C4134 C4142 C4145 C4146 C5207 C5219 C5222 C7606 C7608 C8400 C8401 C8902 C95157 LGE Internal Use Only - 335 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 336 C1819 Frequency) 55TO+125C 0603 R/TP 0.3+-0.03 L:0.6+-0.03 L1300 EAE62946001 Ceramic W:0.3+-0.03 T:0.3+-0.03 MURATA L1311 Chip MANUFACTURING CO.,LTD. L1321 LGE Internal Use Only - 336 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 337 CL05A106MP5NUNC 10uF 20% 10V X5R - C4100 Ceramic EAE62502901 55TO+85C 1005 R/TP 0.55T max. SAMSUNG C4704 Chip ELECTRO-MECHANICS CO., LTD. C4710 C7502 LGE Internal Use Only - 337 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 338 55TO+125C 0603 R/TP - - TDK CORPORATION Chip C1677 C1702 C1722 C1856 C4402 C6117 C6118 L1109 L1666 L1716 LGE Internal Use Only - 338 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 339 55TO+125C 0603 R/TP 0.3+-0.03 L:0.6+-0.03 EAE62946501 C1324 Ceramic W:0.3+-0.03 T:0.3+-0.03 MURATA Chip MANUFACTURING CO.,LTD. Inductor LG HK 0603 1N0S-T 1NH 0.3NH - 470mA - - C1138 Multilayer EAP62226901 0.11OHM 10GHZ 4 SHIELD - 0.6X0.3X0.3MM Chip R/TP TAIYO YUDEN CO.,LTD C1139 Inductor LQP03TG4N7J02D 4.7NH 5% - 250mA - -...
Page 340 LQP03TG2N2C02D 2.2NH 0.2NH - 450mA - - C1316 Multilayer EAP62108001 0.25OHM 6GHZ 13 SHIELD - 0.6X0.3X0.3MM C1845 Chip R/TP MURATA MANUFACTURING CO.,LTD. LGE Internal Use Only - 340 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 341 C1320 Multilayer EAP62526201 3.2GHZ 14 SHIELD - 0.6X0.3X0.3MM R/TP L1662 Chip MURATA MANUFACTURING CO.,LTD. Inductor LG HK0603 7N5J-T 7.5NH 5% - 240mA - - C1321 Multilayer EAP61866801 0.41OHM 3.6GHZ 5 SHIELD 0 0.6X0.3X0.3MM L1705 Chip R/TP TAIYO YUDEN CO.,LTD LGE Internal Use Only - 341 - Copyright ©...
Page 342 LQP03TN56NJ02D 56NH 5% - 100mA - - 3.9OHM C1423 Multilayer EAP62226801 1.2GHZ 9 SHIELD - 0.6X0.3X0.3MM R/TP Chip MURATA MANUFACTURING CO.,LTD. Inductor LG HK 0603 1N8S-T 1.8NH 0.3NH - 380mA - - C1452 Multilayer EAP62227201 0.16OHM 10GHZ 4 SHIELD - 0.6X0.3X0.3MM C1454 Chip R/TP TAIYO YUDEN CO.,LTD...
Page 343 C1668 Capacitor C7611 MCH032A180JK 18pF 5% 25V NP0 -55TO+125C Ceramic ECCH0009504 C7612 0603 R/TP - ROHM. Chip C95159 LGE Internal Use Only - 343 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 344 CL05A225MQ5NSNC 2.2uF 20% 6.3V X5R - C4136 Ceramic ECCH0000198 55TO+85C 1005 R/TP . SAMSUNG ELECTRO- C7400 Chip MECHANICS CO., LTD. C7401 LGE Internal Use Only - 344 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 345 C7404 Ceramic EAE62762301 55TO+85C 0603 R/TP 0.33 MM - SAMSUNG C7604 Chip ELECTRO-MECHANICS CO., LTD. C7610 C7614 C8800 LGE Internal Use Only - 345 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 346 CL21A226MPCLRNC 22uF 20% 10V X5R - C4706 Ceramic EAE62542701 55TO+85C 2012 R/TP 0.95T max. - SAMSUNG Chip ELECTRO-MECHANICS CO., LTD. LGE Internal Use Only - 346 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 347 Capacitor C1005X5R1A105KT000F 1uF 10% 10V X5R - C5220 Ceramic ECZH0001215 55TO+85C 1005 R/TP - TDK KOREA Chip COOPERATION LGE Internal Use Only - 347 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 348 CL05F104ZO5NNNC 0.1uF -20TO+80% 16V Y5V - C8100 Ceramic ECZH0004402 30TO+85C 1005 R/TP - - SAMSUNG ELECTRO- C8102 Chip MECHANICS CO., LTD. LGE Internal Use Only - 348 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 349 Ltd. UCLAMP3311Z 3.3V 3.65V min. 7.5V 4A 30W D10000 Diode,TVS EAH62033201 SLP0603P2X3A R/TP 2P 1 SEMTECH INTERNATIONAL AG LGE Internal Use Only - 349 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 350 1511-8T-15MP Nd-Fe-B 1W 8OHM 82DB 850HZ EAB00 Speaker Module EAB63328201 72.13 X 53.8 X 4.95 FPCB KEYRIN TELECOM CO., LTD LGE Internal Use Only - 350 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 351 Flexible,SMT Bottom PCB Assembly EBR070300 EBR78782001 LGF400L.ALGTWH 1.0 Flexible Flexible,SMT Top PCB Assembly EBR070400 EBR78781901 LGF400L.ALGTWH 1.0 Flexible Flexible,SMT LGE Internal Use Only - 351 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 352 LGD855.ADEUWH 1.0 Sub Sub,SMT Top PCB Assembly EBR072800 EBR78759505 LGD855.ADEUWH 1.0 Sub Sub,SMT L1100 Inductor LG HK0603 82NJ-T 82NH 5% - 70mA - - 3.37OHM L1104 Multilayer EAP61866701 1GHZ 4 SHIELD 0 0.6X0.3X0.3MM R/TP TAIYO L1115 Chip YUDEN CO.,LTD L1137 Inductor LG HK 0603 2N2S-T 2.2NH 0.3NH - 360mA - -...
Page 353 12. EXPLODED VIEW & REPLACEMENT PART LIST Level Location no Description Specification Remark Inductor LG HK 0603 6N8J-T 6.8NH 5% - 250mA - - L1163 Multilayer EAP62227601 0.39OHM 3.9GHZ 5 SHIELD - 0.6X0.3X0.3MM Chip R/TP TAIYO YUDEN CO.,LTD Inductor LG HK 0603 5N6S-T 5.6NH 0.3NH - 260mA - -...
Page 354 L1809 Multilayer EAP62226501 1.52OHM 4.5GHZ 11 SHIELD - 0.6X0.3X0.3MM Chip R/TP MURATA MANUFACTURING CO.,LTD. Inductor LG HK 0603 3N3S-T 3.3NH 0.3NH - 320mA - - L1816 Multilayer EAP62246001 0.23OHM 6.7GHZ 5 SHIELD - 0.6X0.3X0.3MM Chip R/TP TAIYO YUDEN CO.,LTD Inductor LQM18FN2R2M00D 2.2UH 20% - 120mA 0.12...
Page 355 Card Socket EAG63310801 STRAIGHT DIP T/REEL - MOLEX SAD010000 Software,Mobile SAD34629601 Android KK Base D85510a - EUROPE QCT - LGE Internal Use Only - 355 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 356 SC130017 SC13002 PRESS STS 301 0.15 LGLU6200.ALGTBK Clip MBV62321701 SC130021 BK:Black - SC130022 SC130024 SC130026 SC13004 SC13007 SC13009 LGE Internal Use Only - 356 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 357 AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED U18000 IC,Charger EAN63086101 P9025A-2A adj adj 0W CSP R/TP 36P - IDT INC. LGE Internal Use Only - 357 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 358 : 0~10cm,0.3~100kLux U5000 EAN63405901 Proximity 4.8x2.8x1.0mm LGA R/TP 12P - ST MICROELECTRONICS ASIA PACIFIC PTE LTD. LGE Internal Use Only - 358 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 359 Light Sensor 3.36X4.94X3.45 COB R/TP 8P High T U8400 EAN62568201 Proximity and Ambient Light Sensor AVAGO Proximity TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED LGE Internal Use Only - 359 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 360 R/TP 2P 1 ON SEMICONDUCTOR PESD5V0V1BL 5V 5.8V min. 12.5V 4.8A 45W ZD9100 Diode,TVS EDTY0012102 SOD-882 R/TP 2P 1 STC CORP. LGE Internal Use Only - 360 - Copyright © 2014 LG Electronics. Inc. All right reserved. Only for training and service purposes...

LG -D855 Service Manual

1 Introduction

2 Performance

3 Trouble Shooting

4 Download

6 Circuit Diagram

7 Bga Pin Map

8 PCB Layout

9 Calibration

10 Hidden Menu

11 Disassemble Guide

12 Exploded View & Replacement Part List

Quick Links

Troubleshooting

Related Manuals for LG LG-D855

Summary of Contents for LG LG-D855

Table of Contents