HCD-GPX5G, HCD-GPX7G, HCD-GPX8G - Sony Audio Service Manual (repair manual). Page 3

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4

2-1. Disassembly 

Flow 

...........................................................   8

2-2. Case 

.................................................................................   9

2-3. Loading 

Panel 

.................................................................   9

2-4.  Front Panel Section .........................................................   10
2-5.  CD Mechanism Section (CDM741-DVBU201//M) .......   10
2-6. TUNER1AM3R 

Board 

...................................................  11

2-7. MAIN 

Board 

...................................................................  11

2-8.  Back Panel Section .........................................................   12
2-9.  4CH DAMP board ..........................................................   13
2-10. Chassis Section ...............................................................   14
2-11.  Cover Dust CDM  ...........................................................   15
2-12.  Optical Pick Up ...............................................................   15
2-13. DMB22 Board .................................................................   16
2-14.  DRIVER Board, SWITCH Board ...................................   16
2-15. SENSOR Board ..............................................................   17
2-16.  MOTOR (TB) Board.......................................................   17
2-17.  MOTOR (LD) Board ......................................................   18

 .............................................................   19

 ..........................................   22

5-1.  Block Diagram - CD/USB Section - ...............................   23
5-2.  Block Diagram - MAIN Section - ...................................   24
5-3.  Block Diagram - AMP Section - .....................................   25
5-4.  Block Diagram - PANEL/POWER SUPPLY Section - ..   26
5-5.  Printed Wiring Board - 
 

4CH DAMP Board (Component side) ............................   28

5-6.  Printed Wiring Board - 
 

4CH DAMP Board (Conductor side) ..............................   29

5-7.  Schematic Diagram - 4CH DAMP Board (1/3) - ............   30
5-8.  Schematic Diagram - 4CH DAMP Board (2/3) - ............   31
5-9.  Schematic Diagram - 4CH DAMP Board (3/3) - ............   32
5-10.  Printed Wiring Board - DISPLAY Board - .....................   33
5-11.  Schematic Diagram - DISPLAY Board - ........................   34
5-12.  Printed Wiring Board - 
 

MAIN Board (Component side) .....................................   35

5-13.  Printed Wiring Board - 
 

MAIN Board (Conductor side) .......................................   36

5-14.  Schematic Diagram - MAIN Board (1/4) - .....................   37
5-15.  Schematic Diagram - MAIN Board (2/4) - .....................   38
5-16.  Schematic Diagram - MAIN Board (3/4) - .....................   39
5-17.  Schematic Diagram - MAIN Board (4/4) - .....................   40
5-18.  Printed Wiring Board - 
 

USB, VOLUME and MIC Board - .................................   41

5-19.  Schematic Diagram - 
 

USB, VOLUME and MIC Board - .................................   42

5-20.  Printed Wiring Board - DRIVER, SENSOR, SWITCH, 

MOTOR (LD) and MOTOR (TB) Board .......................   43

5-21.  Schematic Diagram - DRIVER, SENSOR, SWITCH, 
 

MOTOR (LD) and MOTOR (TB) Board - .....................   44

5-22.  Printed Wiring Board - TUNER1AM3R Board  .............   45
5-23.  Schematic Diagram - TUNER1AM3R Board - ..............   45
5-24.  Printed Wiring Board - DMB22 Board - ........................   46
5-25.  Schematic Diagram - DMB22 Board (1/3) - ..................   47
5-26.  Schematic Diagram - DMB22 Board (2/3) - ..................   48
5-27.  Schematic Diagram - DMB22 Board (3/3) - ..................   49

6-1.  Case Section  ...................................................................   61
6-2.  Front Panel Section  ........................................................   62
6-3.  Back Panel Section .........................................................   63
6-4. Chassis 

Section 

...............................................................  64

6-5.  CD Mechanism Section (1)

(CDM74I-DVBU201//M) ...............................................   65

6-6.  CD Mechanism Section (2) .............................................   66

 ...............................   67