Sony KV-HW21P80A Service Manual ▷ View online
– 27 –
KV-HW21P80A
RM-969
A BOARD VOLTAGE LIST AND WAVEFORM
Ref
Pin No.
Voltage[v]
Ref
Pin No.
Voltage[v]
Ref
Pin No.
Voltage[v]
30
2.4
1.100V
5
31
2.4
1.420V
6
32
2.4
1.120V
7
33
0.2
34
2.4
35
2.4
36
4.8
37
8.1
38
2.7
39
4.8
40
1.5
41
.05
42
2.9
43
3.8
44
0
45
3.9
46
1.2
47
1.3
48
4.5
49
4.5
50
1.5
51
3.7
52
3.7
53
4.4
54
4.2
55
2.8
56
2.8
IC402
1
5.4
2
2.4
3
2.4
4
0
5
2.4
6
2.4
7
5.4
8
8.9
IC551
1
0.5
2
13.5
3
12.5
4
13.5
5
0.1
6
13.8
7
0.5
IC601
1
1
2
1
3
264
4
16
5
0
IC602
1
134
2
119
3
0
IC604
1
12.2
2
8.9
3
0
4
4.7
IC850
1
2.2
2
0.7
3
1.5
4
0
5
2.5
6
2.2
7
5.8
8
8.9
IC851
1
2.7
2
3.1
3
0
4
0
5
2.9
6
2.9
7
3.7
8
8.9
PH600
1
134
2
133
3
3
4
16
Q001
B
0
C
4.9
E
0
Q002
B
0
C
4.9
E
0
Q003
B
0
C
4.9
E
0.1
Q004
B
0.1
C
4.9
E
0
Q005
B
0.1
C
4.7
E
0
Q100
B
4.2
C
8.9
B
3.6
Q101
B
0.01
C
8.99
E
0
Q102
B
3.1
C
2.4
E
5.1
Q103
B
0
C
0
E
0
Q104
B
0
C
0
E
0
Q105
B
0.3
C
0
E
0
Q106
B
0
C
3.9
E
0
Q201
B
6.2
C
8.9
E
5.6
Q202
B
14.1
C
1.3
E
12.2
Q203
B
5.5
C
14
E
4.8
Q204
B
20.9
C
21.6
E
21.7
Q205
B
4.7
C
0
E
0
Q208
B
4.8
C
1.4
E
1.3
Q300
B
8.9
C
0
E
3
Q301
B
2.3
C
0
E
3
Q302
B
0
C
0
E
3
Q303
B
2.8
C
7.8
E
2.1
Q304
B
0
C
2.2
E
2.7
Q305
B
2.1
C
2.2
E
2.6
Q306
B
2.8
C
8.9
E
0
Q307
B
2.8
C
8.9
E
8.9
Q308
B
0
C
0
E
0
Q309
B
2.8
C
8.9
E
2.1
Q310
B
0
C
8.9
E
0
Q311
B
2.8
C
8.9
E
0
Q312
B
3.9
C
0
B
0
Q313
B
0
C
0
E
0
Q314
B
0
C
0
E
0
Q315
B
0
C
8.9
E
1.9
Q316
B
0
C
4.9
E
0
Q318
B
3.1
C
6.2
E
2.6
Q320
B
0
C
3
E
0
– 28 –
KV-HW21P80A
RM-969
Q321
B
0
C
0
E
0
Q400
B
12.2
C
0
E
12.2
Q406
B
2.4
C
4.3
E
1.7
Q407
B
4.2
C
8.9
E
3.6
Q500
B
132
C
2.6
E
132
Q621
B
0
C
0
E
0
Q800
B
0
C
53
1.320V
13
E
0
IC751
1
1.9
2
1.9
3
1.9
4
0
5
5.3
6
199
7
151
8
151
9
150
J751
3
327
4
0
5
0
6
0
24.80V
4
7
0
8
140
140.0V
3
C BOARD VOLTAGE LIST AND WAVEFORM
Ref
Pin No.
Voltage[v]
A BOARD VOLTAGE LIST AND WAVEFORM
Ref
Pin No.
Voltage[v]
Q801
B
94.2
C
137.6
19.40V
14
E
0
Q802
S
0
G
5.8
656.0mV
15
O
9.9
Q850
B
5.9
C
8.9
E
5.6
Q851
B
5.9
C
0
E
0
DY1
1.600V
12
Ref
Pin No.
Voltage[v]
Ref
Pin No.
Voltage[v]
9
153
118.0V
2
10
153
126.0V
1
11
0
Q701
B
5
C
0
E
0
– 30 –
– 29 –
KV-HW21P80A
RM-969
KV-HW21P80A
RM-969
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
B
C
D
E
F
G
H
I
J
PRINTED WIRING BOARDS
– A Board –
NOTE:
The circuit indicated at left contains high voltage of over
1220 Vp-p. Please pay attention when inspecting or re-
pairing it to prevent an electric shock.
The circuit indicated at left contains high voltage of over
1220 Vp-p. Please pay attention when inspecting or re-
pairing it to prevent an electric shock.
4-5. PRINTED WIRING BOARDS AND PARTS LOCATION
A BOARD
IC
IC001
B-9
IC002
C-7
IC003
C-7
IC004
H-13
IC201
E-8
IC203
D-11
IC301
D-5
IC402
B-2
IC551
J-6
IC601
J-7
IC602
H-7
IC604
G-8
IC850
G-7
IC851
G-7
D001
G-13
D003
G-13
D004
B-9
D005
G-13
D006
C-8
D007
C-6
D008
D-7
D009
G-13
D010
D-7
D100
D-3
D104
F-1
D200
E-12
D201
F-12
D202
D-11
D203
D-10
D300
D-10
D301
B-4
D304
A-7
D305
D-6
D306
E-8
D307
E-8
D308
D-5
D309
C-4
D310
D-5
D311
E-4
D312
D-4
D314
E-6
D315
D-4
D318
C-10
D319
D-6
D320
E-6
D321
D-6
D322
C-4
D323
B-4
D324
C-3
D325
D-4
D326
D-7
D327
A-7
D328
E-6
D329
C-3
D330
C-3
TRANSISTOR
D331
D-5
D332
C-5
D333
C-5
D400
D-10
D401
E-10
D405
B-1
D406
C-1
D407
A-2
D410
E-10
D500
H-6
D501
H-5
D502
J-4
D503
J-3
D504
I-4
D522
J-5
D553
I-6
D600
I-8
D601
H-11
D602
I-9
D603
I-8
D604
I-8
D605
I-8
D606
I-8
D607
G-8
D608
G-7
D609
F-9
D625
J-8
D800
F-1
D802
F-4
D803
F-4
D804
G-2
D805
F-3
D851
F-1
D853
G-6
D854
H-6
Q001
E-13
Q002
E-12
Q003
A-7
Q004
A-9
Q005
D-8
Q100
E-1
Q101
D-2
Q102
D-3
Q103
E-3
Q104
E-3
Q105
C-9
Q106
E-2
Q201
C-2
Q202
E-10
Q203
D-10
Q204
E-11
Q205
E-12
Q208
E-10
Q300
A-5
Q301
B-6
Q302
C-5
Q303
C-5
Q304
A-5
DIODE
Q305
A-5
Q306
A-5
Q307
B-4
Q308
A-4
Q309
A-5
Q310
A-4
Q311
B-4
Q312
A-4
Q313
A-4
Q314
C-6
Q315
D-6
Q316
A-7
Q318
C-2
Q320
D-6
Q321
B-3
Q400
E-10
Q406
B-2
Q406
B-2
Q407
B-2
Q500
I-6
Q800
F-2
Q801
G-1
Q802
F-3
Q850
F-6
Q851
F-7
[POWER SUPPLY, DEFLECTION AUDIO AND VIDEO PROCESSING, AV INPUT/OUTPUT AND MICROCOMPUTER]
A
– 31 –
KV-HW21P80A
RM-969
[RGB AMPLIFER]
C
– C Board –
PRINTED WIRING BOARDS
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