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Sony STR-K790 Service Manual - Page 33

Board, Headphone, Power Board

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4-20. PRINTED WIRING BOARDS - POWER BOARD, DCAC BOARD, HEADPHONE BOARD - • See page 13 for Circuit Boards Location. :Uses unleaded solder. STR-K790 1 2 3 A POWER BOARD B C S152 D JW123 JW122 JW121 E F G JW124 JW126 JW125 4 5 6 7 8 9 CNP152 1 3 JW157 S114 DIMMER R135 S115 R136 S116 SLEEP 2CH K DISPLAY BOARD CN101 (Page 31) 10 11 12 13 14 15 DCAC BOARD J2000 VIDEO 1 IN/ PORTABLE AUDIO IN/ AUTO CAL MIC JW2013 D2013 R2000 JW2004 Q2002 Q2001 C2001 C2002 D2014 C2013 R2008 C2008 R2007 R2016 R2015 C2014 R2010 C2011 IC2000 TP2000 R2019 C2005 R2006 R2005 JW2014 C2006 C2018 R2017 R2001 JW2012 JW2011 R2003 C2003 JW2010 JW2003 C2010 C2012 JW2201 JW2202 JW2000 CN2001 DISPLAY BOARD L CNP102 (Page 31) MAIN BOARD E CNP732 (Page 25) B MAIN BOARD CNP733 (Page 25) 11 (11) 1-872-422- R2018 HEADPHONE BOARD R137 A.F.D. S117 R138 MOVIE S118 R139 TP152 MUSIC S119 11 1-872-421- (11) TP790 4 J MAIN BOARD CN701 (Page 25) CNP790 1 11 1-872-423- (11) J790 PHONES STR-K790 33 33

Section	Page
COVER	1
TABLE OF CONTENTS	3
1.GENERAL	4
2.TEST MODE	10
3.ELECTRICAL ADJUSTMENT	12
4.DIAGRAMS	13
4-1. BLOCK DIAGRAM – MAIN SECTION –	14
4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –	15
4-3. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) –	16
4-4. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE B) –	17
4-5. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/5) –	18
4-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/5) –	19
4-7. SCHEMATIC DIAGRAM – DIGITAL BOARD (3/5) –	20
4-8. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/5) –	21
4-9. SCHEMATIC DIAGRAM – DIGITAL BOARD (5/5) –	22
4-10. PRINTED WIRING BOARDS – HDMI SW BOARD, HDMI BRIDGE BOARD (AEP, UK only) –	23
4-11. SCHEMATIC DIAGRAM – HDMI SW BOARD, HDMI BRIDGE BOARD (AEP, UK only) –	24
4-12. PRINTED WIRING BOARD – MAIN BOARD –	25
4-13. PRINTED WIRING BOARD – STANDBY BOARD –	26
4-14. SCHEMATIC DIAGRAM – MAIN BOARD (1/4) –	27
4-15. SCHEMATIC DIAGRAM – MAIN BOARD (2/4), STANDBY BOARD –	28
4-16. SCHEMATIC DIAGRAM – MAIN BOARD (3/4) –	29
4-17. SCHEMATIC DIAGRAM – MAIN BOARD (4/4) –	30
4-18. PRINTED WIRING BOARD – DISPLAY BOARD –	31
4-19. SCHEMATIC DIAGRAM – DISPLAY BOARD –	32
4-20. PRINTED WIRING BOARDS – POWER BOARD, DCAC BOARD, HEADPHONE BOARD –	33
4-21. SCHEMATIC DIAGRAM – POWER BOARD, DCAC BOARD, HEADPHONE BOARD –	34
5.EXPLODED VIEWS	42
5-1. FRONT PANEL SECTION	42
5-2. CHASSIS SECTION	43
6.ELECTRICAL PARTS LIST	44
DCAC	44
DIGITAL	44
DISPLAY	48
HDMI SW	48
HDMI_BRIDGE	49
HEADPHONE	49
MAIN	49
POWER	53
STANDBY	54

Match case Limit results 1 per page

STR-K790

4-20. PRINTED WIRING BOARDS

– POWER BOARD, DCAC BOARD, HEADPHONE BOARD –

:Uses unleaded solder.

• See page 13 for Circuit Boards Location.

1-872-422-

(11)

1-872-423-

(11)

1-872-421-

(11)

PHONES

IC2000

DCAC

BOARD

HEADPHONE

BOARD

POWER BOARD

MAIN BOARD

CNP733

(Page 25)

MAIN BOARD

CNP732

(Page 25)

DISPLAY

BOARD

CNP102

(Page 31)

MAIN

BOARD

CN701

(Page 25)

DISPLAY

BOARD

CN101

(Page 31)

DIMMER

SLEEP

2CH

MUSIC

MOVIE

A.F.D.

J2000

VIDEO 1 IN/

PORTABLE AUDIO IN/

AUTO CAL MIC

JW157

R135

R136

R137

R139

S114

S115

S116

S117

S118

S119

S152

CNP152

TP152

R138

JW121

JW122

JW123

JW124

JW125

JW126

TP2000

C2001

C2002

C2003

C2005

C2006

C2008

C2010

C2011

C2012

C2013

C2014

C2018

R2000

R2001

R2003

R2005

R2006

R2007

R2008

D2013

D2014

R2010

R2015

R2016

R2017

R2018

R2019

JW2201

JW2202

Q2001

Q2002

JW2004

JW2010

JW2011

JW2012

JW2000

JW2003

JW2013

JW2014

CN2001

J790

TP790

CNP790