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Acer AL2017 Service Manual
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Acer AL2017 Service Manual

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LCD Monitor Acer
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Summary of Contents for Acer AL2017

  • Page 1: Service Manual

    Acer Service Manual Service Manual LCD Monitor Acer AL2017...
  • Page 2 Copyright 2007 InnoLux Tech. Corp. Ltd All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of InnoLux Tech. Corp. Ltd. Acer AL2017 Service Manual...

  • Page 3: Table Of Contents

    Acer Service Manual Table of Contents CHAPTER 1- PRECAUTIONS & SAFETY NOTICES ........................3 SAFETY PRECAUTIONS ..............................3 PRODUCT SAFETY NOTICE............................3 SERVICE NOTES................................3 CHAPTER 2- SERVICE TOOLS & EQUIPMENT REQUIRED ..................... 4 CHAPTER 3- CIRCUIT THEORY ..............................5 ..........................

  • Page 4: Chapter 1- Precautions & Safety Notices

    Acer Service Manual Chapter 1- PRECAUTIONS & SAFETY NOTICES 1. SAFETY PRECAUTIONS This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper used or installation may cause damage to the monitor as well as to the user.

  • Page 5: Chapter 2- Service Tools & Equipment Required

    Acer Service Manual Chapter 2- SERVICE TOOLS & EQUIPMENT REQUIRED 1. SIGNAL GENERATOR 2. MULTIMETER 3. SCREW DRIVER 4. OSCILLOSCOPE 5. Soldering IRON 6. SOLDER 7. VGA Cable (15pins point to point) 8. Color Analyzer 9. Myson412 ISP Board 10. EDID Board...

  • Page 6: Chapter 3- Circuit Theory

    Acer Service Manual Chapter 3- CIRCUIT THEORY 1. Monitor Block Diagram The LCD Monitor contains an interface board, and inverter/power/Audio board, keypad board and flat panel. In Inverter/power/Audio board, power section supplies +14V & +5V for Inverter/Audio and Interface board used. The inverter section drives the backlight of panel and the DC-DC conversion.
  • Page 7 Acer Service Manual initially off, and the Vcc pin capacitor is charged. When the Vcc pin voltage reaches approximately 14V, the control circuitry is activated and the soft-start begins. The soft-start circuit gradually increases the duty cycle of the MOSFET from zero to the maximum value over approximately 4ms.

  • Page 8: Inverter Circuit

    Acer Service Manual 1.2.2 DVI CAPTURE - Differential Signal input RX0+,RX0-,RX1+,RX1-,RX2+,RX2-,RXC+,RXC- through CN102 #18,#17,#10,#9,#2,#1,#23,#24 via R130, R131, R132, R133, R134, R135, R137, R138 enter into U104 Digital input terminal #45,#46,#42,#43,#39,#40,#48,#49, and then TSUM56AWHK deals with signal internally. - Signal DDC_SCL (series clock) inputs via CN102#6, and then passes through ZD106 Zener for ESD protection, via R126, goes into EDID EEPROM IC U101 #6.
  • Page 9 Acer Service Manual A voltage of 2V to pin10 of IC501 enables the IC and activates the striking timer. The SSTCMP pin of IC501 performs the soft function, the C511 set the time of SST. The operation frequency determined by external capacitor C512, C521 and resistor R508 connected at CT pin of IC501.

  • Page 10: Chapter 4- Disassembly & Assembly

    Acer Service Manual Chapter 4- Disassembly & Assembly 1. Exploded Diagram Exploded drawing(With DVI)
  • Page 11 Acer Service Manual Exploded drawing(W/O DVI) (We will update later)

  • Page 12: Disassembly Block

    Acer Service Manual 2. Disassembly Block 4. LE2018 BOM Structure PCBA INV.&DC-DC *1 M3*5,Zn ROHS *4 M3*6,W/W-SPR Zn ROHS *1 PCBA I/F BOARD *1 PANEL CMO M201P1-L01 CABLE 30 PIN FFC BOLT,#4-40x11.8,Ni ROHS *4 TAPE ACE *3 M3*5,Zn ROHS *1...

  • Page 13: Assembly Block

    Acer Service Manual 5. LE2018 DIS-assembly Block LE 2018 LCD Monitor BRACKET FINGER *1 HINGE *1 ASSY, BASE STAND BASE*1 SCREW,B,CROSS,W/W-SPR,M4*20,Zn ROHS *3 RUBBER FOOT *4 GASKET*1 PLATE,BASE*1 T4*6,Zn, ROHS *2 ASSY STAND M4*8,Black Zn,NL ROHS *4 HINGE COVER*1 SCREW,B,CROSS,T.T-4*8,BLK...
  • Page 14 Acer Service Manual Process To Access Factory Mode Power Off Press “AUTO＂& ＂MENU＂button at the same time Power On Release the “AUTO＂& ＂MENU＂ button Press “MENU＂ Button < Press “ ＂ Button Press “Menu＂ Button Enter the factory Mode...

  • Page 15: Chapter 5- Test And Adjustment

    Acer Service Manual Chapter 5- TEST AND ADJUSTMENT 1. GENERAL POINTS 1.1 Test Equipment or Tool 1.1.1 Test pattern generator: PC or video pattern generator (Chroma-2326/2160/2130) 1.1.2 Color analyzer: Chroma-7120 1.1.3 Power meter: AC Source Chroma-6408 1.1.4 Electrical safety tester: Chroma (Zentech) 9032A 1.1.5 Stereo source: Music or signal generator input...

  • Page 16: Input Signal

    Acer Service Manual 1.6 Burn-in (Aging) Pattern 1.6.1 Burn-in patterns are: full Red, Green, Blue, White and Blac 1.6.2 Stop burn-in pattern by providing with video signal from D-sub connector 1.6.3 Enter or exit burn-in mode by setting “burn-in” to be “on” or “off” in the factory mode 1.7 Warm Up...

  • Page 17: Function Check

    Acer Service Manual Length: 1.8 m +/- 50 mm (fixed) Connector type: D-sub male. With DDC_2B pin assignments. Blue connector thumb-operated jack screws Pin Assignment: PIN No. SIGNAL PIN No. SIGNAL Red video input VGA +5V Green video input Blue video input...

  • Page 18: Display Check

    Acer Service Manual Status Power Consumption LED Display Normal < 42W(with audio) Green Standby (No H/V < 1W Orange sync) Power off < 1W No display 3.6 VGA Cable Detect Test If VGA cable of LCD monitor isn’t connected to video pattern generator or PC, “NO SIGNAL” should be shown on screen.

  • Page 19: Picture Check

    Acer Service Manual defined 5% transmission ND filter. Note 2: Light Leakage: There shall not be visible light around the customer’s bezel after assembly in normal View angle. Majo Defect Type Specification Size Count (N) Minor Black spots which appear Dot Shape(Particle、Scratch...
  • Page 20 Acer Service Manual 5.1.4 Set brightness and contrast to be maximum, apply pattern as Fig.3, it should be the following requirement: Min. luminance nine points (backlight ≥ 75 Max. luminance nine points (backlight Fig. 3 5.2 Color Temperature Check 5.2.1 Test mode: 1400x1050 @ 60 Hz 5.2.2 Test pattern: pattern #41 of “WHITE”...
  • Page 21 Acer Service Manual download. 5.4.3 If writing EEPROM is successful, and then shows text "PASS" on screen; if writing EEPROM is failure, then shows text "FAIL".

  • Page 22: Chapter 6- Trouble Shooting

    Acer Service Manual Chapter 6- TROUBLE SHOOTING 1. No Power & LED Off No power Check primary Check Check IC802, circuit if rectifier voltage C804, T801, short Check F801, P801, RT,801,D801 Check pin6 of CheckC810,D803,C80 IC802 voltage about 12V Check pin2 of IC802...

  • Page 23: No Raster

    Acer Service Manual 2. No raster No backlight No power supply to Check the cable that from LED lamp is OK inverter I/F BD to P/I BD is ok Is there 16V voltage on Check power U501, U502 fail pin3,4 of T501,T502...

  • Page 24: Black Screen

    Acer Service Manual 3.Black screen B lack screen C heck pow er supply:pin 1,2 of Pow er fail C N 101 Y E S C heck FB 102,FB 103, C heck pow er supply FB 105,FB 106 for U 105...

  • Page 25: Bad Screen

    Acer Service Manual 4.Bad Screen...

  • Page 26: White Screen

    Acer Service Manual 5. White screen White screen LVDS Cable Workmanship Reinsert Change LVDS cable NG LVDSCable Check VLCD Check LVDS Panel Fail is 5V signal Check Panel-Enable of U105 Fail U105(pin48) Check Q101,Q103,Q110, C108, C109...

  • Page 27: No Sound

    Acer Service Manual 6.No Sound No Sound Re-insert or Change the Line-in Cable Power Fail Check Vs of IC 701? Check the Input of IC 701 Check the output of IC 701 Check the Mute and Volume pins of IC...
  • Page 28 Acer Service Manual 7. Unstable Power Unstable power Check sampling Check R822, Circuit R823, R824 Change R822, R823, R824 Check the C Check the R pin pin voltage of Change voltage of IC803 IC803 if 3V IC803 about 2.5V Check R819, R820...

  • Page 29: Attachment 1- Bill Of Material

    Acer Service Manual Attachment 1- Bill of Material PCBA IF ITEM Description Location 790771300000R PCBA,I/F BOARD,W/SPK,LE1753-012 ROHS 629030009100R PROGRAM,W/SPK,LE1753-012 ROHS 790771340600R PCBA,I/F BOARD,SMD,LE1753-612 790771320600R PCBA,I/F BOARD,OTHERS,LE1753-612 511130001200R SOLDER BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.06/Ge0 790771320600R PCBA,I/F BOARD,OTHERS,LE1753-612 440819015030R CON,D-SUB,FEM.15P RA W/O SCREW DZ11AA1-H CN101, 443842024060R CON,DVI-D RA 24+1P FEM.W/O SCR EW,QH1112...
  • Page 30 Acer Service Manual 411020026210R DIO BAV99 350mW 70V SOT-23(PHI RoHS D101,D102,D103, 411020026390R DIO BAV99,SOT-23(INFINEON)RoHS 411020026020R DIO BAV99-LF 350mW 70V SOT-23 (FEC)RoHS 411020026090R DIO BAV99 350mW 75V SOT-23(PEC RoHS 411020047210R DIO BAV70 85V SOT23 (PHILIPS) RoHS D104,D107, 411020047020R DIO BAV70-LF, 70V SOT-23(FEC) ROHS...
  • Page 31 Acer Service Manual 414918010150R RES SMD (0402) 100Ω J,RT,RoHS R108,R109,R110, 419341054660R C SMD(0603) Y5V 1uF/16V Z,RoHS C150, 414916020350R RES SMD (0603) 20KΩ J,RT RoHS REV:A R151, 511130002200R SOLDER PASTE,Sn96.5-Ag3.0-Cu0.5 ROHS 511130002201R SOLDER PASTE,Sn96.5%Ag3.0%Cu0.5% 511130002202R SOLDER PASTE,Sn95.5%Ag3.9%Cu0.6% PCBA PI ITEM Description...
  • Page 32 Acer Service Manual 411090023090R SCHTKY SB10150FCT 150V/10A ITO 220AB(PAN 411090024480R SCHTKY SP1040C 40V/10A ITO220(WILLAS)RoH D805, 411090040010R SCHTKY SRF1050 50V/10A ITO220AB(TSC)RoHS 507200005300R HEATSINK,75x25xt15mm, LP2610 509112306100R SCREW,P,CROSS,T.T-3*6,ZnROHS 790911440500R PCBA,P/I BOARD SMD,LE2041-510 ROHS 412000495840R IC NCP1337DR2G SOIC-7(ON)RoHS IC802, RES SMD (1206) 10Ω J,RT RoHS...
  • Page 33 Acer Service Manual 411020026020R DIO BAV99-LF 350mW 70V SOT-23 (FEC)RoHS 411020026090R DIO BAV99 350mW 75V SOT-23(PEC RoHS 411020068020R DIO BAW56 70V SOT-23(FRONTIER)RoHS D506, 411020068090R DIO BAW56 75V SOT-23(PANJIT)RoHS 411020068210R DIO BAW56 85V SOT-23(PHILIPS)RoHS 410500045210R XSTR PMBT3904 NPN 200MA,40V SOT23(PHILIP Q701,Q702,Q703,...
  • Page 34 Acer Service Manual CAP SH 220uF 16V M,125℃,ST,10x13,RoHS 420262210460R C708, 432002200200R FERR BEAD 3.5x6x0.65,VT,RoHS FB801, PCBA KEY PAD ITEM Description Location 790931500000R PCBA,KEYPAD BOARD,LE2018 ROHS 430638080020R WFR. 8P 1.5mm R/A S8B-ZR RoHS JST CN107, 411070054990R LED G/Y∮3x5mm L-115VCGKSYKW-L 5.33-SZ(K LED101, 411070053990R LED G/Y∮3x5mm 1259-7SYGUYW/S5 30-A3/F14...

  • Page 35: Attachment 2- Schematic

    Acer Service Manual Attachment 2- Schematic...
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