Table of Contents
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STR-KM22/KM55/KM77
SERVICE MANUAL
Ver. 1.2 2014.09
• STR-KM22 is the receiver section in HT-M22
• STR-KM55 is the receiver section in HT-M55
• STR-KM77 is the receiver section in HT-M77
This receiver incorporates Dolby* Digital and Pro
Logic Surround and the DTS** Digital Surround
System.
* Manufactured
under
license
Laboratories. Dolby, Pro Logic, and the double-D
symbol are trademarks of Dolby Laboratories.
** Manufactured under license under U.S. Patent Nos:
5,956,674; 5,974,380; 6,226,616; 6,487,535 &
other U.S. and worldwide patents issued & pending.
DTS, the Symbol, & DTS and the Symbol together
are registered trademarks & DTS Digital Surround |
96/24 is a trademark of DTS, Inc. Product includes
software. © DTS, Inc. All Rights Reserved.
This receiver incorporates High-Defi nition Multimedia
TM
Interface (HDMI
) technology.
The terms HDMI and HDMI High-Defi nition
Multimedia Interface, and the HDMI Logo are
trademarks or registered trademarks of HDMI
Licensing LLC in the United States and other countries.
iPhone and iPod touch are trademarks of Apple Inc.,
registered in the U.S. and other countries.
All other trademarks and registered trademarks are of
their respective holders. In this manual, ™ and ® marks
are not specifi ed.
"Made for iPod" and "Made for iPhone" mean that
an electronic accessory has been designed to connect
specifi cally to iPod or iPhone, respectively, and
has been certifi ed by the developer to meet Apple
performance standards.
Apple is not responsible for the operation of this device
or its compliance with safety and regulatory standards.
Please note that the use of this accessory with iPod or
iPhone may affect wireless performance.
Windows Media is either a registered trademark or
trademark of Microsoft Corporation in the United
States and/or other countries.
9-890-657-03
Sony Corporation
2014I81-1
©
2014.09
Published by Sony EMCS (Malaysia) PG Tec
Photo: STR-KM77
This product is protected by certain intellectual property
rights of Microsoft Corporation. Use or distribution of
such technology outside of this product is prohibited
without a license from Microsoft or an authorized
from
Dolby
Microsoft subsidiary.
MPEG Layer-3 audio coding technology and patents
licensed from Fraunhofer IIS and Thomson.
"x.v.Color (x.v.Colour)" and "x.v.Color (x.v.Colour)"
logo are trademarks of Sony Corporation.
"BRAVIA" is a trademark of Sony Corporation.
"PlayStation" is a registered trademark of Sony
Computer Entertainment Inc.
"WALKMAN" and "WALKMAN" logo are registered
trademarks of Sony Corporation.
MICROVAULT is a trademark of Sony Corporation.
The Bluetooth
®
word mark and logos are registered
trademarks owned by Bluetooth SIG, Inc. and any use
of such marks by Sony Corporation is under license.
Other trademarks and trade names are those of their
respective owners.
The N Mark is a trademark or registered trademark
of NFC Forum, Inc. in the United States and in other
countries.
TM
Android
and Google Play are trademarks of Google
Inc.
Australian Model
Singapore Model
Saudi Arabia Model
SPECIFICATIONS
Amplifi er section
Power Output
• STR-KM77
Stereo mode output (rated) (6 ohms, 1 kHz, THD 1%)
Surround mode output
(6 ohms, 1 kHz, THD 30%)
RMS output
FRONT:
CENTER:
SURROUND:
SURROUND BACK: 264 W per channel
Surround mode output
(4 ohms, 100 Hz, THD 30%)
SUBWOOFER:
• STR-KM55
Stereo mode output (rated) (6 ohms, 1 kHz, THD 1%)
Surround mode output
(6 ohms, 1 kHz, THD 30%)
RMS output
FRONT:
CENTER:
SURROUND:
Surround mode output
(4 ohms, 100 Hz, THD 30%)
SUBWOOFER:
• STR-KM22
Stereo mode output (rated) (6 ohms, 1 kHz, THD 1%)
Surround mode output
(6 ohms, 1 kHz, THD 30%)
RMS output
FRONT:
CENTER:
SURROUND:
Surround mode output
(4 ohms, 100 Hz, THD 30%)
SUBWOOFER:
– Continued on next page –
MULTI CHANNEL AV RECEIVER
E Model
STR-KM22/KM55/KM77
STR-KM77
STR-KM22/KM77
Thai Model
STR-KM22/KM55
1)
120 W + 120 W
2)
(reference)
264 W per channel
1)
1)
266 W
264 W per channel
1)
1)
2)
(reference)
300 W per channel
1)
1)
120 W + 120 W
3)
(reference)
1)
270 W per channel
1)
270 W
270 W per channel
1)
3)
(reference)
1)
300 W per channel
1)
100 W + 100 W
3)
(reference)
252 W per channel
1)
1)
252 W
252 W per channel
1)
3)
(reference)
290 W per channel
1)
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Table of Contents
Related Manuals for Sony STR-KM22
Summary of Contents for Sony STR-KM22
- Page 1 Saudi Arabia Model Thai Model STR-KM22/KM55 Photo: STR-KM77 • STR-KM22 is the receiver section in HT-M22 • STR-KM55 is the receiver section in HT-M55 • STR-KM77 is the receiver section in HT-M77 This receiver incorporates Dolby* Digital and Pro This product is protected by certain intellectual property...
- Page 2 Power consumption 195 W (STR-KM77) 4096 × 2160p @ 50 Hz – – – 185 W (STR-KM55) 150 W (STR-KM22) 3840 × 2160p @ 59.94/60 Hz – – – Power consumption (during standby mode) 3840 × 2160p @ 50 Hz –...
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Page 3: Table Of Contents
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. -
Page 4: Servicing Notes
STR-KM22/KM55/KM77 Ver. 1.1 SECTION 1 SERVICING NOTES Notes on chip component replacement MODEL IDENTIFICATION • Never reuse a disconnected chip component. – Rear View – • Notice that the minus side of a tantalum capacitor may be da- maged by heat. - Page 5 STR-KM22/KM55/KM77 CAPACITOR ELECTRICAL DISCHARGE PROCESSING NOTE OF REPLACING MAIN BOARD When Main board are replaced, please perform below procedure: When checking the board, the electrical discharge is necessary for the electric shock prevention. 1. While pressing the [SPEAKER SETTING] and [GAME] but- Connect the resistor to both ends of respective capacitors.
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Page 6: Disassembly
STR-KM22/KM55/KM77 SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. 2-1. DISASSEMBLY FLOW 2-2. CASE (Page 6) 2-3. FRONT PANEL SECTION 2-4. BACK PANEL SECTION (Page 7) (Page 8) 2-5. SUB RECTIFIER BOARD, MAIN BLOCK (Page 9) 2-6. -
Page 7: Front Panel Section
STR-KM22/KM55/KM77 2-3. FRONT PANEL SECTION front side BLUETOOTH MODULE BLUETOOTH MODULE front side LED BAR board LED BAR board TOP INSULATION PC board pin, lead pin, lead TOP INSULATION PC board 4 wire is removed from the pin, lead. (except SAF, AR) -
Page 8: Back Panel Section
STR-KM22/KM55/KM77 2-4. BACK PANEL SECTION MAIN board front side qa one screw (+BVTP 3 x 8) qs seven screws (+BVTP 3 x 8) pin, lead STANDBY board 5 wire is removed from pin, lead. qg one screw (+BVTP 3 x 8) -
Page 9: Sub Rectifier Board, Main Block
STR-KM22/KM55/KM77 2-5. SUB RECTIFIER BOARD, MAIN BLOCK 2 two screws (+BVTP 3 4 bracket, fan 3 clamp qa two screws 1 two screws (+BVTP 3 (+BVTP 3 5 fan, DC heatsink qs SUB RECTIFIER board clamp qg one screw (+BVTP 3 qk two screws (+BVTP 3 6 wire is removed from clamp. -
Page 10: Dsp Board, Surr Back Amp Board, Main Board, Heatsink Block
STR-KM22/KM55/KM77 2-6. DSP BOARD, SURR BACK AMP BOARD, MAIN BOARD, HEATSINK BLOCK (KM77) 6 Remove the twelve solders. 7 two screws (+BVTP 3 8 SURR BACK AMP board 4 wire is removed from pin, lead. qf heatsink block 9 two screws... -
Page 11: Test Mode
STR-KM22/KM55/KM77 SECTION 3 TEST MODE FL CHECK MODE Items Display All fl uorescent segments are tested. When this test is activated, all Protector Count segments light on at the same time, then each segment light on one Total Power ON after another. - Page 12 STR-KM22/KM55/KM77 5. While pressing [SPEAKER SETTING] button, press and 6. Go to MODEL setting and press the [ ] key of remote release the [M-TURBO], [FOOTBALL], [GAME] button in commander. order, the message “SPECIALIZE” appears. 7. Either one of the message as below appears.
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Page 13: Electrical Check
STR-KM22/KM55/KM77 SECTION 4 ELECTRICAL CHECK FM AUTO STOP CHECK signal generator Procedure: 1. Turn on the set. 2. Input the following signal from signal generator to FM antenna input directly. Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz... -
Page 14: Diagrams
STR-KM22/KM55/KM77 SECTION 5 DIAGRAMS • Circuit Boards Location SUB RECTIFIER board (KM55, KM77) STANDBY board DISPLAY board RC-S801/A5 (WW) SURR BACK AMP board (KM77) POWER KEY board HDMI RE PC board TUNER1AMPR board LED BAR board MAIN board NFC CHAIN board... -
Page 15: Block Diagram - Hdmi/Usb Section
STR-KM22/KM55/KM77 5-1. BLOCK DIAGRAM – HDMI/USB Section – HDMI TRANSCEIVER IC3009 CN3000 DATA2+ 23 R1X2+ HDMI_SD0 MCLK DATA2- HDMI_SD1 R1X2- SCK0_DCK 89 DATA1+ HDMI_SD2 R1X1+ WS0_OUT_DR0_GPIO7 88 DATA1- HDMI_SD3 R1X1- DATA0+ R1X0+ SD0_3_DR2_GPIO3 DATA0- R1X0- SD0_2_DL1_GPIO2 CLOCK+ HDMI_SD0 ~ HDMI_SD3... -
Page 16: Block Diagram - Audio Section
STR-KM22/KM55/KM77 5-2. BLOCK DIAGRAM – AUDIO Section – DIGITAL AUDIO INTERFACE RECEIVER SOUND PROCESSOR IC2114 IC404 ADINL 45 50 ADCL ADINR 44 49 ADCR MUTING D/A CONVERTER IC2118 IC2104 MUTEB 24 6 SELECT 9 MPIN3 HDMI_SD0 XMCK 30 5 SCK... -
Page 17: Block Diagram - Amp Section
STR-KM22/KM55/KM77 5-3. BLOCK DIAGRAM – AMP Section – POWER AMP BOOSTER Q770 Q750 TB353 Q772 BIAS CURRECT DETECT CURRECT DETECT D750 Q752, Q753 Q755 Q754 Q774 BOOSTER Q775 FRONT Q751 RELAY DRIVER POWER AMP Q365 BOOSTER RY365 Q820 Q800 Q822... -
Page 18: Block Diagram - Display/Power Supply Section
STR-KM22/KM55/KM77 5-4. BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section – KM55, KM77 (FAN) (FAN) SYSTEM CONTROL +5V REG CN903 CN904 IC2106 IC1602 (4/4) D1603 1 IN OUT 3 +12V REG RECTIFIER IC900 LED DRIVER INPUT LED D1002 F921 37 FAN _CTRL... - Page 19 STR-KM22/KM55/KM77 Ver. 1.1 THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. • Waveforms (In addition to this, the necessary note is printed in each block.) – MAIN Board – For Printed Wiring Boards. For Schematic Diagrams. Note: Note: •...
- Page 20 STR-KM22/KM55/KM77 – MAIN Board – – DSP Board – – STANDBY Board – – TUNER1AMPR Board – IC2800 rl (PE3/X1) IC5001 wf (CLKIN) IC5001 ol (LRCLK_OUT) IC1500 1 (BOOT) IC101 qk (X1) 230 mVp-p 200 mVp-p 4.2 Vp-p 74 mVp-p 5.2 Vp-p...
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Page 21: Printed Wiring Board - Main Board (Component Side)
STR-KM22/KM55/KM77 Ver. 1.2 5-5. PRINTED WIRING BOARD – MAIN Board (Component Side) – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. SUB RECTIFIER BOARD DSP BOARD CN932 CN5001 TB356 (Page 40) (Page 35) SUBWOOFER BLUETOOTH >015P... -
Page 22: Printed Wiring Board - Main Board (Conductor Side)
STR-KM22/KM55/KM77 Ver. 1.1 5-6. PRINTED WIRING BOARD – MAIN Board (Conductor Side) – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. MAIN BOARD (CONDUCTOR SIDE) CL339 KM55, KM77 CL2809 CL2805 CL2100 CL2099 CL2066 CL356 CL360... -
Page 23: Schematic Diagram - Main Board (1/9)
STR-KM22/KM55/KM77 Ver. 1.2 5-7. SCHEMATIC DIAGRAM – MAIN Board (1/9) – >008S >009S MAIN BOARD MAIN BOARD (3/9) (3/9) (Page 25) (Page 25) MAIN BOARD (1/9) LIMITER LEVEL_DET DC_DET1 R505 KM55, KM77 PROTECTOR R544 R868 R869 R818 R819 C548 R550... -
Page 24: Schematic Diagram - Main Board (2/9)
STR-KM22/KM55/KM77 5-8. SCHEMATIC DIAGRAM – MAIN Board (2/9) – >008S >009S MAIN BOARD MAIN BOARD (3/9) (3/9) (Page 25) (Page 25) MAIN BOARD (2/9) KM77 CN958 LIMITER LEVEL_DET CL870 1 LEVEL DET DC_DET1 CL871 3 DC DET CL872 >011S 4 DC DET... -
Page 25: Schematic Diagram - Main Board (3/9)
STR-KM22/KM55/KM77 Ver. 1.1 5-9. SCHEMATIC DIAGRAM – MAIN Board (3/9) – >009S >012S >008S MAIN BOARD MAIN BOARD MAIN BOARD (1/9), (2/9) (2/9) (1/9), (2/9) (Page 23), (Page 24) (Page 24) (Page 23), (Page 24) 36 37 33 11 13 31... -
Page 26: Schematic Diagram - Main Board (4/9)
STR-KM22/KM55/KM77 5-10. SCHEMATIC DIAGRAM – MAIN Board (4/9) – • See page 47 for IC Block Diagrams. >007S >024S >025S >026S MAIN BOARD (1/9), (2/9) MAIN BOARD MAIN BOARD MAIN BOARD (Page 23), (Page 24) (6/9) (5/9) (7/9) (Page 28) -
Page 27: Schematic Diagram - Main Board (5/9)
STR-KM22/KM55/KM77 5-11. SCHEMATIC DIAGRAM – MAIN Board (5/9) – • See page 19 for Waveforms. • See page 47 for IC Block Diagrams. MAIN BOARD (5/9) >037S >028S MAIN BOARD (8/9) MAIN BOARD (Page 30) (6/9), (7/9) CN2509 (Page 28), (Page 29) -
Page 28: Schematic Diagram - Main Board (6/9)
STR-KM22/KM55/KM77 5-12. SCHEMATIC DIAGRAM – MAIN Board (6/9) – • See page 19 for Waveforms. • See page 47 for IC Block Diagrams. MAIN BOARD (6/9) >043S CN2511 MAIN BOARD (7/9) (Page 29) CL2066 >041S DGND D_GND 3.3V >023S STANDBY... -
Page 29: Schematic Diagram - Main Board (7/9)
STR-KM22/KM55/KM77 5-13. SCHEMATIC DIAGRAM – MAIN Board (7/9) – • See page 19 for Waveforms. • See page 47 for IC Block Diagrams. • See page 53 for IC Pin Function Descriptions. MAIN BOARD (7/9) >034S MAIN BOARD (5/9) (Page 27) -
Page 30: Schematic Diagram - Main Board (8/9)
STR-KM22/KM55/KM77 5-14. SCHEMATIC DIAGRAM – MAIN Board (8/9) – • See page 19 for Waveforms. • See page 53 for IC Pin Function Descriptions. >052S >029S MAIN BOARD MAIN BOARD (9/9) (5/9) (Page 31) (Page 27) MAIN BOARD (8/9) >037S... -
Page 31: Schematic Diagram - Main Board (9/9)
STR-KM22/KM55/KM77 Ver. 1.1 5-15. SCHEMATIC DIAGRAM – MAIN Board (9/9) – • See page 19 for Waveforms. • See page 47 for IC Block Diagrams. MAIN BOARD (9/9) EXCEPT SAF, AR >051S MAIN BOARD (8/9) (Page 30) R2718 3.3k R2720 3.3k... -
Page 32: Printed Wiring Board - Hdmi Re Pc Board
STR-KM22/KM55/KM77 Ver. 1.1 5-16. PRINTED WIRING BOARD – HDMI RE PC Board – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. HDMI RE PC BOARD (COMPONENT SIDE) HDMI TV OUT IN 3 IN 2 IN 1... -
Page 33: Schematic Diagram - Hdmi Re Pc Board (1/2)
STR-KM22/KM55/KM77 5-17. SCHEMATIC DIAGRAM – HDMI RE PC Board (1/2) – • See page 19 for Waveforms. • See page 53 for IC Pin Function Descriptions. HDMI RE PC BOARD (1/2) ET3000 (CHASSIS) R3175 R3001 R3174 IN1_HPD R3173 HOT PLUG DET 19... -
Page 34: Schematic Diagram - Hdmi Re Pc Board (2/2)
STR-KM22/KM55/KM77 Ver. 1.2 5-18. SCHEMATIC DIAGRAM – HDMI RE PC Board (2/2) – HDMI RE PC BOARD (2/2) CN3006 RB3000 0.05 DATA2+ OUT_D2+ OUT_D2- DATA2 SHIELD DATA2- OUT_D1+ >053S OUT_D1- DATA1+ HDMI RE PC DATA1 SHIELD BOARD DATA1- (1/2) (Page 33) -
Page 35: Printed Wiring Board - Dsp Board
STR-KM22/KM55/KM77 Ver. 1.1 5-19. PRINTED WIRING BOARD – DSP Board – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. DSP BOARD DSP BOARD (COMPONENT SIDE) (CONDUCTOR SIDE) C5002 R5048 C5003 C5001 C5000 IC5000 C5009 C5006... -
Page 36: Schematic Diagram - Dsp Board (1/2)
STR-KM22/KM55/KM77 5-20. SCHEMATIC DIAGRAM – DSP Board (1/2) – • See page 53 for IC Pin Function Descriptions. DSP BOARD (1/2) VDD_EXT X5000 25MHz >056S DSP BOARD (2/2) (Page 37) >057S R5054 DSP BOARD (2/2) (Page 37) R5056 R5102 TRST... -
Page 37: Schematic Diagram - Dsp Board (2/2)
STR-KM22/KM55/KM77 Ver. 1.2 5-21. SCHEMATIC DIAGRAM – DSP Board (2/2) – • See page 19 for Waveforms. • See page 47 for IC Block Diagrams. DSP BOARD (2/2) FB5085 VDD_EXT R5085 IC5003 SI-3010LLSL-TL FL5003 IC5003 +1V REG VDD_INT R5088 R5089... -
Page 38: Printed Wiring Board - Standby Board
STR-KM22/KM55/KM77 Ver. 1.1 5-22. PRINTED WIRING BOARD – STANDBY Board – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. (FAN) (FAN) STANDBY BOARD ~ AC IN (COMPONENT SIDE) LP900 IC1601 KM55, KM77 CN904 CN903 C1617 >003P... -
Page 39: Schematic Diagram - Standby Board
STR-KM22/KM55/KM77 Ver. 1.2 5-23. SCHEMATIC DIAGRAM – STANDBY Board – • See page 19 for Waveforms. STANDBY BOARD KM55, KM77 CN903 B_FAN+ B_FAN- CL962 B_FAN+ (FAN) CN904 KM55, KM77 D1002 1 S_FAN- D3SBA60-7101 2 S_FAN+ D1603 (FAN) CL960 1SR154-400TE-25 MECHANICAL... -
Page 40: Printed Wiring Board - Sub Rectifier Board (Km55, Km77)
STR-KM22/KM55/KM77 Ver. 1.1 5-24. PRINTED WIRING BOARD – SUB RECTIFIER Board (KM55, KM77) – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. SUB RECTIFIER BOARD SUB RECTIFIER BOARD (COMPONENT SIDE) (CONDUCTOR SIDE) (KM55, KM77) (KM55, KM77) -
Page 41: Printed Wiring Board - Tuner1Ampr Board
STR-KM22/KM55/KM77 5-26. PRINTED WIRING BOARD – TUNER1AMPR Board – 5-28. PRINTED WIRING BOARD – FRONT USB Board (EXCEPT SAF, AR) – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. • See page 14 for Circuit Boards Location. -
Page 42: Printed Wiring Board - Surr Back Amp Board (Km77)
STR-KM22/KM55/KM77 5-30. PRINTED WIRING BOARD – SURR BACK AMP Board (KM77) – 5-31. SCHEMATIC DIAGRAM – SURR BACK AMP Board (KM77) – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. SURR BACK AMP BOARD KM77... -
Page 43: Printed Wiring Board - Display Board
STR-KM22/KM55/KM77 5-32. PRINTED WIRING BOARD – DISPLAY Board – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. DISPLAY BOARD CL106 CL108 C115 C111 ND101 F101 CL109 VACUUM FLUORESCENT DISPLAY D103 Q101 C112 C114 CL107 R114... -
Page 44: Printed Wiring Board - Led Bar Board
STR-KM22/KM55/KM77 5-34. PRINTED WIRING BOARD – LED BAR Board – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. POWER KEY NFC CHAIN BOARD BOARD CL159 CL161 CN100 CN4000 (Page 46) (Page 46) CL163 >020P >019P... -
Page 45: Schematic Diagram - Led Bar Board
STR-KM22/KM55/KM77 5-35. SCHEMATIC DIAGRAM – LED BAR Board – LED BAR BOARD R149 R151 VOLUME LED VOLUME LED VOLUME LED CN103 CL148 SIRCS CL149 +3.3V STBY CL150 DGND CL151 +6.3V DCDC R159 CL172 D130 D132 D133 D135 D136 D138 FL_GND R160 >061S... -
Page 46: Printed Wiring Board - Nfc Chain Board
STR-KM22/KM55/KM77 Ver. 1.1 5-36. PRINTED WIRING BOARD – NFC CHAIN Board – 5-38. PRINTED WIRING BOARD – POWER KEY Board – • See page 14 for Circuit Boards Location. • : Uses unleaded solder. • See page 14 for Circuit Boards Location. - Page 47 STR-KM22/KM55/KM77 Ver. 1.2 • IC Block Diagrams IC5000 W9864G6JH-6-ER10 (DSP BOARD (2/2)) VSS 54 DQ15 53 VSSQ 52 VDDQ CLOCK DQ14 51 BUFFER DQ13 50 VDDQ 49 VSSQ COLUMN DECODER DQ12 48 COLUMN DECODER CONTROL DQ11 47 SIGNAL COMMAND GENERATOR...
- Page 48 STR-KM22/KM55/KM77 IC404 BD34701KS2 (MAIN BOARD (4/9)) Main SBLIN SBRIN INR7 SLIN INL7 Mode Mode Mode Mode SRIN INR8 selector selector selector selector INL8 SWIN FLIN FRIN RECR RECL ADCR Volume Volume Volume Volume Volume Volume Volume Volume ADCL SUBR CHIP...
- Page 49 STR-KM22/KM55/KM77 IC2104 PCM1681GPWPR (MAIN BOARD (6/9)) ZR1/ZR1/FMT0 1 SYSTEM CLOCK SYSTEM ZERO MANAGER CLOCK DETECT POWER SUPPLY VOUT1 OUTPUT AMP AND MS/ADR/FMT1 2 CONVERTER LOW-PASS FILTER FUNCTION MC/SCL/DEMP 3 CONTROL MD/SDA/MUTE 4 VOUT2 OUTPUT AMP AND INTERFACE CONVERTER LOW-PASS FILTER...
- Page 50 STR-KM22/KM55/KM77 IC2114 LC89075WA-H (MAIN BOARD (5/9)) PVDD OPTICAL TV PGND OPTICAL SAT HDMI MCK HDMI SPDIF HDMI BCK Group: A Stereo ARC SPDIF Group: B HDMI LRCK Group: C (4x6):4 Group: D USB SPDIF COAXIAL IN Group: D (Input) Group: C (Input)
- Page 51 STR-KM22/KM55/KM77 IC2119 TC74VHC393FT (ELK) (MAIN BOARD (5/9)) CLEAR CLEAR IC2700 BU94502AMUV (MAIN BOARD (9/9)) (EXCEPT SAF. AR) DAVSS AVSSC LED Driver RDACO AVDDC Audio Controller VCDACO SEL_SLAVE MP3/WMA Sound /AAC Effecter LDACO SEL_COD/TEST3 Decoder DAVDD 35 TEST2 SD_CON XOUT_PLL (Oscillator)
- Page 52 STR-KM22/KM55/KM77 IC101 RZ5B801-0002E2 (TUNER1AMPR BOARD) IISD GND 1 IISD VDDRF CP2 3 FM Antenna Digital Signal Process LOUT Filter Digital Stereo FRF1 4 Mixer Demodulator Decoder FM LNA ROUT Digital Demodulator Decoder LRCK GNDRF 5 LRCK / LOUT Image Station...
- Page 53 STR-KM22/KM55/KM77 • IC Pin Function Descriptions DSP BOARD (1/2) IC5001 ADSST-AVR-3054 (DSP) Pin No. Pin Name Description SDDQM Data mask signal output to the SD-RAM Memory select signal output to the SD-RAM SDCKE Clock enable signal output to the SD-RAM VDD_INT Power supply terminal (+1.2V) (for core)
- Page 54 STR-KM22/KM55/KM77 Pin No. Pin Name Description VDD_INT Power supply terminal (+1.2V) (for core) Not used WDTRSTO Watchdog timer reset output terminal Not used Not used VDD_EXT Power supply terminal (+3.3V) (for I/O) SL/SR_OUT Audio signal output to the DSP2 SL/SR_IN...
- Page 55 STR-KM22/KM55/KM77 Pin No. Pin Name Description VDD_INT Power supply terminal (+1.2V) (for core) ADDR14 Address signal output terminal Not used AMI_WR AMI port write enable terminal Not used AMI_RD AMI port read enable terminal Not used VDD_INT Power supply terminal (+1.2V) (for core)
- Page 56 STR-KM22/KM55/KM77 HDMI BOARD (1/2) IC3009 SII9535CTUC (HDMI TRANSCEIVER) Pin No. Pin Name Description SCLK_GPIO9 SPI Clock/Programmable GPIO 9. SCK0_IN_GPIO5 I2S Serial Clock Input/Programmable GPIO 5. SD0_IN/SPDIF_IN 2S Serial Data Input/S/PDIF Input. WS0_IN_GPIO6 I2S Word Select Input/Programmable GPIO 6. R0XC– HDMI Receiver Port 0 TMDS Input Clock Pair.
- Page 57 STR-KM22/KM55/KM77 Pin No. Pin Name Description DDC I2C Data for respective HDMI receiver port. These signals are true open-drain, and do DSDA0 not pull to ground when power is not applied to the device. These pins require an external pull-up resistor.
- Page 58 STR-KM22/KM55/KM77 Pin No. Pin Name Description APLL10 PLL Analog VCC. XTALVCC33 PLL Crystal Oscillator Power. XTALOUT Crystal Clock Output. XTALIN Crystal Clock Input. XTALGND PLL Crystal Oscillator Ground. TPVDD10 Analog Power for TMDS Transmitter Core. HDMI Transmitter TMDS Output Clock Pair. Main HDMI transmitter output port TMDS clock TXC–...
- Page 59 STR-KM22/KM55/KM77 MAIN BOARD (7/9) IC2106 MB9AF156NPMC-G-JNE2 (SYSTEM CONTROL) Pin No. Pin Name Description Power supply pin (+3.3V) DIR_INT Interrupt status signal input from DIR DIR_RST Reset signal output to the digital audio interface receiver DIR_CE Latch signal output for DIR IC...
- Page 60 STR-KM22/KM55/KM77 Pin No. Pin Name Description POWER_KEY Power switch input terminal AD_KEY1 Key signal input (A/D port) SW_LIMITER Subwoofer limiter MU UART IN IIC data input from the video micom AVCC Analog power supply pin for A/D converter AVRH Standard power supply pin for A/D converter...
- Page 61 STR-KM22/KM55/KM77 MAIN BOARD (8/9) IC2800 MB9AF156NPMC-G-JNE2 (HDMI CONTROLLER) Pin No. Pin Name Description Power supply pin (+3.3V) NO_USE Not used NO_USE Not used NO_USE Not used NO_USE Not used TEST_SDA Not used TEST_SCL Not used NO_USE Not used APPLE_RST Reset pin for Apple certifi cation APPLE_SCL I2C SCL for Apple certifi...
- Page 62 STR-KM22/KM55/KM77 Pin No. Pin Name Description NO_USE Not used NFC_SEL NFC select pin NO_USE Not used NO_USE Not used AVCC A/D converter power supply terminal / Analog power supply pin for A/D converter AVRH ADC analog reference voltage input / Standard power supply pin for A/D converter...
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Page 63: Exploded Views
STR-KM22/KM55/KM77 Ver. 1.1 SECTION 6 EXPLODED VIEWS Note: • -XX and -X mean standardized parts, so • Color Indication of Appearance Parts Ex- The components identifi ed by mark 0 they may have some difference from the ample: or dotted line with mark 0 are critical for original one. -
Page 64: Front Panel Section
STR-KM22/KM55/KM77 Ver. 1.1 6-2. FRONT PANEL SECTION not supplied (POWER KEY board) not supplied (LED BAR board) EN100 ND101 not supplied (NFC CHAIN board) not supplied EN101 not supplied supplied with EN100 supplied not supplied not supplied (except SAF, AR) -
Page 65: Back Panel Section
STR-KM22/KM55/KM77 Ver. 1.1 6-3. BACK PANEL SECTION not supplied (KM55, KM77) (E51, EA) (KM55, KM77) not supplied (E51, EA) F902 not supplied F901 not supplied not supplied not supplied not supplied (TUNER1AMPR board) not supplied not supplied Note: If wire (fl at type) is replaced, install it after bending it in the same form as that before replacement. -
Page 66: Chassis Section
STR-KM22/KM55/KM77 Ver. 1.1 6-4. CHASSIS SECTION (KM55, KM77) not supplied (KM22) not supplied not supplied (SUB RECTIFIER board) T901 supplied (KM55, KM77) supplied not supplied heatsink section T901 not supplied not supplied not supplied not supplied Ref. No. Part No. -
Page 67: Heatsink Section
STR-KM22/KM55/KM77 Ver. 1.1 6-5. HEATSINK SECTION (KM77) (KM55, KM77) not supplied (KM55, KM77) (SURR BACK Q601 AMP board) Q600 Q701 Q550 Q751 Q453 Q750 Q551 Q651 supplied with Q650 Q403, Q404, Q801 Q454 Q404 Q453, Q454 Q800 Q403 Q851 Q850... -
Page 68: Electrical Parts List
STR-KM22/KM55/KM77 Ver. 1.2 SECTION 7 MAIN ELECTRICAL PARTS LIST • RESISTORS Note: When indicating parts by reference num- • Due to standardization, replacements in All resistors are in ohms. ber, please include the board name. the parts list may be different from the METAL: Metal-fi... - Page 69 STR-KM22/KM55/KM77 Ver. 1.2 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C642 1-114-128-91 CERAMIC CHIP 47PF 100V C832 1-116-138-11 CERAMIC CHIP 4PF 0.25PF 100V C651 1-164-230-11 CERAMIC CHIP 220PF C835 1-114-128-91 CERAMIC CHIP 47PF 100V...
- Page 70 STR-KM22/KM55/KM77 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C2045 1-125-777-11 CERAMIC CHIP 0.1uF C2507 1-112-090-11 ELECT 100uF C2046 1-125-777-11 CERAMIC CHIP 0.1uF C2514 1-100-567-81 CERAMIC CHIP 0.01uF C2047 1-100-567-81 CERAMIC CHIP 0.01uF C2516 1-100-567-81 CERAMIC CHIP 0.01uF...
- Page 71 STR-KM22/KM55/KM77 Ver. 1.2 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C2812 1-125-777-11 CERAMIC CHIP 0.1uF D356 6-504-052-01 DI P6SMB30AT3G D360 6-502-961-01 DI DA2J10100L C2813 1-125-777-11 CERAMIC CHIP 0.1uF D365 6-502-961-01 DI DA2J10100L C2814 1-116-724-11 CERAMIC CHIP 4.7uF...
- Page 72 STR-KM22/KM55/KM77 Ver. 1.1 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D2319 8-719-053-18 DIODE 1SR154-400TE-25 IC2111 6-600-827-01 IC JSR1124 (OPTICAL IN 2) D2323 6-503-759-01 DI RB751V40, 115 IC2112 6-600-827-01 IC JSR1124 (OPTICAL IN 1) D2700...
- Page 73 STR-KM22/KM55/KM77 Ver. 1.2 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q655 6-550-327-01 2SA1514KT146S R327 1-216-833-11 METAL CHIP 1/10W Q670 6-550-032-01 TRANSISTOR HN4A06J-GRBL (TE85R) R328 1-216-821-11 METAL CHIP 1/10W Q672 6-553-334-01 KTA1024-Y R350 1-216-825-11 METAL CHIP 2.2K...
- Page 74 STR-KM22/KM55/KM77 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R560 1-216-825-11 METAL CHIP 2.2K 1/10W R624 1-216-813-11 METAL CHIP 1/10W (KM55, KM77) R561 1-216-843-11 METAL CHIP 1/10W R625 1-216-825-11 METAL CHIP 2.2K 1/10W (KM55, KM77)
- Page 75 STR-KM22/KM55/KM77 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R723 1-216-813-11 METAL CHIP 1/10W R821 1-216-829-11 METAL CHIP 4.7K 1/10W R724 1-216-813-11 METAL CHIP 1/10W R822 1-216-829-11 METAL CHIP 4.7K 1/10W R725 1-216-825-11 METAL CHIP 2.2K...
- Page 76 STR-KM22/KM55/KM77 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R2011 1-218-970-81 METAL CHIP 1/16W R2084 1-250-468-11 METAL CHIP 1/16W R2012 1-218-945-11 METAL CHIP 1/16W R2087 1-216-833-11 METAL CHIP 1/10W R2013 1-216-833-11 METAL CHIP 1/10W R2091...
- Page 77 STR-KM22/KM55/KM77 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R2706 1-218-977-11 METAL CHIP 100K 1/16W R2830 1-218-941-81 METAL CHIP 1/16W (EXCEPT SAF, AR) R2831 1-218-941-81 METAL CHIP 1/16W R2707 1-218-953-11 METAL CHIP 1/16W R2832 1-218-941-81...
- Page 78 STR-KM22/KM55/KM77 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark RR17 1-249-393-11 CARBON 1/4W C5026 1-118-289-11 CERAMIC CHIP 0.1uF (KM77) C5027 1-118-289-11 CERAMIC CHIP 0.1uF RR18 1-249-393-11 CARBON 1/4W C5028 1-118-289-11 CERAMIC CHIP 0.1uF (KM77) C5029 1-118-289-11 CERAMIC CHIP 0.1uF...
- Page 79 STR-KM22/KM55/KM77 Ver. 1.2 HDMI RE PC Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < FERRITE BEAD > R5051 1-216-801-11 METAL CHIP 1/10W R5052 1-216-801-11 METAL CHIP 1/10W FB5000 1-400-862-11 BEAD, FERRITE R5053 1-216-833-11 METAL CHIP...
- Page 80 STR-KM22/KM55/KM77 Ver. 1.2 HDMI RE PC Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * C3033 1-116-720-11 CERAMIC CHIP 10uF 6.3V FB3004 1-400-921-21 FERRITE, EMI (SMD) * C3037 1-116-720-11 CERAMIC CHIP 10uF 6.3V FB3005 1-481-348-21 EMI FERRITE (SMD) (1608)
- Page 81 STR-KM22/KM55/KM77 HDMI RE PC DISPLAY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R3131 1-218-961-11 METAL CHIP 4.7K 1/16W C117 1-165-908-11 CERAMIC CHIP 1uF R3132 1-216-797-11 METAL CHIP 1/10W R3135 1-218-957-11 METAL CHIP 2.2K 1/16W < DIODE >...
- Page 82 STR-KM22/KM55/KM77 LED BAR POWER KEY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark LED BAR BOARD JR222 1-216-296-11 SHORT CHIP JR223 1-216-296-11 SHORT CHIP ************* JR224 1-216-296-11 SHORT CHIP < CAPACITOR > JR225 1-216-296-11 SHORT CHIP...
- Page 83 STR-KM22/KM55/KM77 Ver. 1.1 POWER KEY FRONT USB NFC CHAIN STANDBY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D115 6-504-050-01 DI (LED 1L0353W61B3MKT02) A-1987-672-A STANDBY BOARD, COMPLETE (KM55: SAF, AR, TH, E12/KM77: SAF, SP, AR, AUS) <...
- Page 84 STR-KM22/KM55/KM77 Ver. 1.2 STANDBY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * C1633 1-118-360-11 CERAMIC CHIP 0.1uF L1603 1-424-918-21 INDUCTOR 10uH C1634 1-104-665-11 ELECT 100uF < TRANSISTOR > C1635 1-126-946-11 ELECT 6800uF Q900 6-552-677-01 RT1N234M-T111-1 <...
- Page 85 STR-KM22/KM55/KM77 STANDBY SUB RECTIFIER SURR BACK AMP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSFORMER > C408 1-114-128-91 CERAMIC CHIP 47PF 100V (KM77) 0 T903 1-697-234-21 POWER TRANSFORMER (SUB) (EXCEPT E51, EA) C409 1-126-947-11...
- Page 86 STR-KM22/KM55/KM77 SURR BACK AMP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < JUMPER RESISTOR > R422 1-216-842-11 METAL CHIP 1/10W (KM77) JW408 1-216-296-11 SHORT CHIP 0 (KM77) R423 1-216-813-11 METAL CHIP 1/10W (KM77) < TRANSISTOR >...
- Page 87 STR-KM22/KM55/KM77 Ver. 1.1 SURR BACK AMP TUNER1AMPR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R474 1-216-813-11 METAL CHIP 1/10W L103 1-414-576-41 INDUCTOR 47nH (KM77) L104 1-481-330-21 INDUCTOR 220nH R475 1-216-829-11 METAL CHIP 4.7K 1/10W L105...
- Page 88 STR-KM22/KM55/KM77 Ver. 1.1 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 0 T901 1-697-350-11 POWER TRANSFORMER (MAIN) (KM22: SAF, SP, AR, TH) 0 T901 1-697-353-11 POWER TRANSFORMER (MAIN) (KM22: E51, EA) 0 T901 1-697-356-11 POWER TRANSFORMER (MAIN)
- Page 89 STR-KM22/KM55/KM77 MEMO...
- Page 90 Date Description of Revision 2014.01 2014.04 Additional of Thai model for STR-KM22. Additional of E12 model for STR-KM55. Delete E12 model for STR-KM77. Delete Australian model for STR-KM55. Change of MAIN, STANDBY, SUB RECTIFIER and NFC CHAIN boards (suffi x 12).