Sony HCD-VR90AV Service Manual ▷ View online
HCD-VR90AV
33
33
6-8. SCHEMATIC DIAGRAM VIDEO (3/3) SECTION
• Refer to page 60 for IC Block Diagrams. • Refer to page 27 for Waveforms. • Refer to page 30 for Printed Wiring Board.
(Page 31)
(Page 31)
(Page 32)
(Page 35)
(Page 32)
16
0.0047uF
0.0047uF
22uF
0.0012uF
0.0012uF
V
CN301
3P
HCD-VR90AV
34
34
6-9. PRINTED WIRING BOARD MAIN SECTION
• Refer to page 19 for Circuit Boards Location.
(Page 52)
(Page 56)
(Page 40)
(Page 58)
(Page 46)
(Page
30)
(Page
54)
(Page 44 )
(Page 44)
(Page 59)
(Page 30)
C731
R733
R732
R734
Q731
R731
C732
C776
J704
C733
WOOFER
OUT
C761
C778
R762
R761
R715
C711
C775
R712
R711
R763
R713
R764
C762
C712
C713
C763
R714
R716
R766
R765
VIDEO
FRONT
L
R
REAR
L
R
CENTER
WOOFER
M901
DVD INPUT
C257
C259
C258
C260
C261
C209
R215
C211
C212
C210
Q291
R291
R292
R293
D201
5
CD DIGITAL
OUT
W900AV
DR8AV
DR8AV
W900AV
DR8AV
16
10
24
1
2
13
14
D194
D193
CN701
R725
C725
JR911
JR921
R919
R916
R917
R920
Q921
C921
C922
IC921
JR533
JR532
FB411
D401
R411
D333
I-3
D334
I-3
D335
I-4
D336
I-4
D501
I-6
D534
G-7
D544
G-7
D802
H-8
D803
H-8
D804
H-7
D805
H-8
D806
H-7
D807
I-9
D808
I-6
D911
E-10
D912
F-9
D913
F-10
D931
G-10
D951
B-11
IC101
D-3
IC201
C-9
IC181
B-5
IC191
B-7
IC301
G-3
IC501
H-6
IC601
A-1
IC901
C-11
IC931
G-10
IC932
G-11
IC933
H-11
IC951
B-11
IC801
I-8
IC911
E-10
Q111
D-5
Q112
D-5
Q113
D-5
Q115
D-4
Q161
E-5
Q162
E-5
Q163
E-5
Q165
E-3
Q271
C-7
Q281
C-7
Q331
I-2
Q332
I-2
Q333
I-2
Q334
I-2
Q335
I-4
Q336
I-3
Q337
I-3
Q338
I-4
Q339
I-4
Q340
I-3
Q341
I-3
Q342
I-3
Q343
I-3
Q801
H-7
Q802
I-9
Q803
I-8
Q804
I-8
Q901
C-11
Q902
B-11
Q903
B-11
Q904
B-11
Q905
B-11
Q906
B-11
Q911
F-9
Q912
F-9
Q913
F-9
Q914
F-9
Q931
G-10
Q932
G-9
Q961
A-10
Q962
A-10
• Semiconductor
Location
Ref. No.
Location
HCD-VR90AV
35
35
6-10. SCHEMATIC DIAGRAM MAIN (1/5) SECTION
• Refer to page 60 for IC Block Diagrams.
2.2
50V
2.2
50V
0.033
0.033
150k
150k
150k
150k
150k
150k
R215
2.2M
D193
1SS355
D194
1SS355
C192
0.1
C725
1
50V
R725
75
C778
0.1
TP720
CN701
2P
VCD VIDEO GND
VCD VIDEO
2
(TH)
(EA,MY,
SP,IA)
A
V
51
33
39
37
38
36
59
39
MICON
INTER
FACE
HCD-VR90AV
36
36
6-11. SCHEMATIC DIAGRAM MAIN (2/5) SECTION
• Refer to page 27 for Waveforms. • Refer to page 34 for Printed Wiring Board. • Refer to page 61 for IC Pin Functions.
(Page 38)
(Page 39)
(Page 35)
(Page 39)
(Page 45)
(Page 37)
(Page 37)
13P
16
JR556
0
JR533 0
JR532 0
JR519 0
47k
(EA)
6.8k(MY,SP,
TH,IA)
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