DOWNLOAD Sony HCD-DR8AV / HCD-W900AV Service Manual ↓ Size: 9.63 MB | Pages: 90 in PDF or view online for FREE

— 5 —

7-15. Printed Wiring Board     Power Section

(DR8AV model) ································································ 61

7-16. Schematic Diagram     Power (1/2) Section

(W900AV model) ····························································· 63

7-17. Schematic Diagram     Power (2/2) Section

(W900AV model) ····························································· 65

7-18. Printed Wiring Board     Power Section

(W900AV model) ····························································· 67

7-19. Schematic Diagram     FL Section ···································· 69
7-20. Printed Wiring Board     FL Section ································· 71
7-21. Schematic Diagram     Panel VR Section ························· 73
7-22. Printed Wiring Board     Panel VR Section ······················ 75
7-23. Schematic Diagram     TC Panel Section ························· 77
7-24. Printed Wiring Board     TC Panel Section ······················· 79
7-25. Schematic Diagram     CD Panel Section ························· 81
7-26. Printed Wiring Board     CD Panel Section ······················ 83
7-27. Schematic Diagram     CD Motor Section ························ 85
7-28. Printed Wiring Board     CD Motor Section ····················· 87
7-29. Schematic Diagram     Jack Section ································· 89
7-30. Printed Wiring Board     Jack Section ······························ 91
7-31. Schematic Diagram     Trans Section

(W900AV model) ····························································· 93

7-32. Printed Wiring Board     Trans Section

(W900AV model) ····························································· 95

7-33. Schematic Diagram     Trans Section

(DR8AV model) ································································ 97

7-34. Printed Wiring Board     Trans Section

(DR8AV model) ································································ 99

7-35. Schematic Diagram     Leaf SW Section ························ 100
7-36. Printed Wiring Board     Leaf SW Section ····················· 100
7-37. Schematic Diagram     Surround Section ······················· 101
7-38. Printed Wiring Board     Surround Section ····················· 101
7-39. IC Block Diagrams ························································· 103
7-40. IC Pin Functions ····························································· 104

8-1.

Case and Back Panel Section ········································· 107

8-2.

Front Panel Section 1 ····················································· 108

8-3.

Front Panel Section 2 ····················································· 109

8-4.

Chassis Section ······························································· 110

8-5.

TC Mechanism Section 1 (TCM230AWR2/230PWR2) 111

8-6.

TC Mechanism Section 2 (TCM230AWR2/230PWR2) 112

8-7.

CD Mechanism Section (CDM37M-5BD32L) ·············· 113

8-8.

Base Unit Section (BU-5BD32L) ··································· 114

····································· 115

·························································· 4

·········································································· 6

3-1.

Front Panel ········································································· 8

3-2.

Main Board ········································································· 8

3-3.

Sub Panel ············································································ 9

3-4.

CD-L/CD-R Board and CD Lid Assembly ························· 9

3-5.

Tape Mechanism Deck and Cassette Lid ·························· 10

3-6.

CD Mechanism Deck ······················································· 10

3-7.

Base Unit ·········································································· 10

3-8.

Disc Table ········································································· 11

···························································· 12

····························· 15

······························· 15

7-1.

Circuit Boards Location ··················································· 19

7-2.

Block Diagrams
BD Section ······································································· 21
Deck Section ····································································· 23
Main (1/2) Section ···························································· 25
Main (2/2) Section ···························································· 27
Power Section (DR8AV model) ······································· 29
Power Section (W900AV model) ····································· 31
Display Section ································································· 33

7-3.

Printed Wiring Board     BD Section ································ 37

7-4.

Schematic Diagram     BD WSection ······························· 39

7-5.

Printed Wiring Board     Main Section ····························· 41

7-6.

Schematic Diagram     Main (1/5) Section ······················· 43

7-7.

Schematic Diagram     Main (2/5) Section ······················· 45

7-8.

Schematic Diagram     Main (3/5) Section ······················· 47

7-9.

Schematic Diagram     Main (4/5) Section ······················· 49

7-10. Schematic Diagram     Main (5/5) Section ······················· 51
7-11. Schematic Diagram     Deck Section ································ 53
7-12. Printed Wiring Board     Deck Section ····························· 55
7-13. Schematic Diagram     Power (1/2) Section

(DR8AV model) ································································ 57

7-14. Schematic Diagram     Power (2/2) Section

(DR8AV model) ································································ 59

— 6 —

234

1

@§

@ª

@•

@¶

@∞

%¢

%∞

^¡

^™

^£

^¢

^∞

^§

%§

%¶

%•

%ª

^º

#º #¡

#™  #£

#§

#•

$º

$™

$¡

#∞

#¢

$£

$¢

$∞

$§

$¶

$•

$ª

%¡

%£

^•

%º

^ª

&º

&¡

%™

#¶
#ª

@¡
@™

@£

@¢

@º

!ª

!•

!¶

9

!§

!∞

5

6

7 8

0!¡

!£

!™

!¢

^¶

1 1/u (Power) button and indicator

2 DEMO (STANDBY) button (DR8AV)

POWER SAVE/DEMO (STANDBY)
button (W900AV)

3 DISPLAY button
4 SPECTRUM ANALYZER button
5 Display window
6 GEQ control button
7 SYNC BASS button
8 SYNC EQ button
9 Remote sensor
0 TUNING MODE button
!¡ STEREO/MONO button
!™ ENTER/NEXT button and indicator
!£ TUNER MEMORY button
!¢ TUNER/BAND button
!∞ TUNING - button
!§ TUNING + button
!¶ FUNCTION button
!• VOLUME knob
!ª PHONES jack
@º MIC LEVEL knob
@¡ MIX MIC jack
@™ GROOVE button and indicator
@£ SUPER WOOFER button and indicator

@¢ MODE button
@∞ ª (B Deck) button and indicator

@§ · (B Deck) button and indicator

@¶ p (B Deck) button

@• 0 (B Deck) button

@ª ) (B Deck) button

#º P (B Deck) button

#¡ r REC (B Deck) button

#™ HI-SPEED DUB button
#£ CD SYNCHRO button
#¢ PLAY MODE button
#∞ REPEAT button
#§ 0 (CD) button

#¶ ) (CD) button

#• ·P (CD) button and indicator

#ª p (CD) button

$º DISK SKIP button
$¡ = AMS + knob

$™ VIDEO2 INPUT jacks
$£ PRO LOGIC button and indicator
$¢ DVD 5.1 CH
$∞ EDIT button
$§ NON-STOP button and indicator
$¶ LOOP button
$• FLASH button

$ª DISC 5 button
%º DISC 4 button
%¡ DISC 3 button
%™ DISC 2 button
%£ DISC 1 button
%¢ DOLBY NR button
%∞ DIRECTION button
%§ ) (A Deck) button

%¶ 0 (A Deck) button

%• p (A Deck) button

%ª · (A Deck) button

^º ª (A Deck) button

^¡ KARAOKE PON/MPX button
^™ DSP button and indicator
^£ EFFECT button and indicator
^¢ ENTER button and indicator
^∞ GEQ CONTROL button
^§ P. FILE MEMORY
^¶ Equalizer indicators
^• t/CLOCK SET button

^ª SLEEP button
&º REC button and indicator
&¡ DAILY button and indicator

• AMS is the abbreviation for Automatic

Music Sensor.

— 7 —

This section is extracted
from instruction manual.

— 8 —

Follow the disassembly procedure in the numerical order given.

1

 Three flat type wires

     (CN303,CN304,CN431)

2

 Connector (CN702)

3

 Connector (CN452)

4

 Connector (CN802)

7

 Front panel

5

 Screw (BVTP 3x8)

6

 Four screw (BVTP 3x8)

4

 Connector (CN412)

5

 Flat type wire (CN411)

1

 Flat type wire (CN1)

3

 Tuner unit

2

 Two screws (BVTP 3x8)

7

 Seven screws (BVTP 3x8)

!¡

 Fan motor

     (HCD-DR8AV)

!£

 Power cord

!¢

 Back panel

8

 Five screws (BVTP 3x8)

6

 Connector (CN903)

     (HCD-DR8AV)

!§

 Main board

!∞

 Two screws (BVTP 3x8)

0

 Two screws (BVTP 3x8)

     (HCD-DR8AV)

!™

 Screw (BVTP 3x8)

     (HCD-W900AV)

9

 Four screws (BVTP 3x8)