JVC AV-20D304/SA, Service Manual

Page: 42 / 50

No.52103
AV-20D304
2-5
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/2) SHEET 1
D365
D367
CN00T
C277
C273
R252
IC251
TC90A49P
C253
C276
C262
C263
R261
R253 C252
R263
C270
C278
L251
QQL29BJ-4R7Z
C274
C266
C272
C275
R251
C254
C269
R264
C268
R255
C264
C261
C267
R262
IC851
S751
QSW0619-003 Z
R714
R821
C815
R702
X701
QAX0717-001Z
C708 C709
C705
C704
R739
R501
R504
C401
R401
C502C501
R505
R506 R50
C507
R359 R227
C221
D353
R201
Q701
R768
R769
R770
R740
R734 R733 R704
R705
R709
D702
R716
R718
C716
R721
R701
C701
C402
C505
D368
D369
D370
R360
R751
Q251
Q252
R256
C265
R254
R706
K701
QQR0582-001Z
K702
QQR0582-001Z
R857
R257
K251
QQR0582-001Z
K253
QQR0582-001Z
K254
QQR0582-001 Z
D366
IC704
AN78L05-T
IC703
S-80840CNY-T
C702 C703
R703 R707
D705
R241
C504
R863
R862
Q851
R683
R6
R834 R835 R836
Y251
Y852
C689
R715
C835 C836 C837
Y292
Y252
C668
C676
R651
R664
C652
R661
C659
C658
C660
C663
C653
R652
C661 C667
R660 R656
C665
C656
N
C657
R657 C651 C666
R658
C655 N
C664
R663
R653
C654
R654 C662
IC651
UPC1851BGT
Y253
Q
C807
IC702
BR24C08
C710
C713
R717
R670 R669
R671
R662
C678
N
C677
N
D661
Y293
R838 R837
R720
R366
R363
R364 R365
R361 R362
R502
R503
C503
C203 C244
C354
C247 C202 C243
C711 C712
R731 R708
C361 C362
C851 C852
C854
C855 R771
R772 R774
R773
R775
C856 C858
R778
R851 R852 R853 R854 R856 R860 R859 R858
R776
R777
R861
C859 C861 C860
R855
C862 C857
C853
C865 C863 C864
IC201
R729
R732
R65
5
C670
R659
C675 C672 C673 C674 C671 C669
R667 R668 R665 R666
*5
*5
.01
.01
10k
47p
.01
47/25
.01
100
1k 100p
100
47/25
.01
180p
.01
.01
47/25
3.3k
180p
.01
820
47/25
1.5k
.01
.01
.01
100
TA1218AN
82k
120k
0.01
1K
22p 22p
.01
47/25
2.7k
4.7k
3.9K
.47
1k
.01 47/25
150k
470 560
.01
10k 100k
10/50
*5
22k
*1
6.8k
1k
10k
100
4.7k 4.7k 4.7k
4.7k
100
X
X
22k
10/50
1k
1K
.001
1000p
.47
*5
*5
*5
0
1k
*2
*2
1.5k
.47/50
180
4.7k
10k
2.2k
*5
10/50 10/50
10k 10k
*5
X
2.2/50
47k
100k
*1
22K
22
100 100 100
0
X
33/50
100
X X X
X
BW
1/50
1/50
1k
0
.01
100
.47/50
.047
0.1
1/50
47/25
15k
0.1 33/50
5.6K 3.3k
1/50
4.7/50
2.2/50
1.5k 100/16 1/50
15k
1/50
10/50
0
4.7k
0.1
68k 3.3/50
BW
.01
X
OPT
4.7K
100 100
3.3M
100
10/16
10/16
X
X
X X
1.0
100
X
100 100
X X
680
X .01
.0015
.01
4.7/50 1/50
47/2
5
47/25
.01
100
100
47/2
5
.01
.01 .01 .01
.01 15k
10k 10k 10k
10k
.01
.01
10k
100 100 100 100 100 100 100 100
100 100
100
.01
47/25
.01
15K
10/50 10/50
10/50
X X X
22k
100
33k
2.2/50
56
K
0.1 0.1
2.2/50
.002
2
.002
2
.022
10
0
10
0
10
0
10
0
KEY1
EXTL
EXTR
LOT
SCL0
SDA0
FR3
FL3
A_MUTING
ROT
EXTR
EXTL
L
R
COM_IN
SCL
0
L R
COUT YOUT
AFT
SDA1
LED
FBP
REMOCON
BBE_SW
EL1 ER1
V1 C1
EL2
CMP_Y2
ER2
VTV Y1
SDA0 SCL0
SDA0 SCL0 SCL1
CMP_PR CMP_Y CMP_PB
V-OUT
HD
AGC_ADJ
AGC-M
KEY1
A_MUTING
VOLTAGE (V) PIN NO. VOLTAGE (V) PIN NO. VOLTAGE (V) PIN NO.
IC101
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
IC201
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
IC251
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
IC601
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
IC602
1
2
3
4
5
6
7
8
9
10
11
12
13
IC651
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
IC702
1
2
3
4
5
6
7
8
IC703
1
2
3
IC704
1
2
3
IC851
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Q001
E
C
B
Q101
E
C
B
Q131
E
C
B
Q161
E
C
B
Q211
E
C
B
Q232
E
C
B
Q233
E
C
B
Q251
E
C
B
Q252
E
C
B
Q281
E
C
B
Q282
E
C
B
Q283
E
C
B
Q291
E
C
B
Q292
E
C
B
Q293
E
C
B
Q352
E
C
B
Q602
E
C
B
Q681
E
C
B
Q682
E
C
B
Q683
E
C
B
Q684
E
C
B
Q701
E
C
B
Q751
E
C
B
Q851
E
C
B
TU001
AGC
ADR5
SCL
SDA
1.7
4.5
3.8
1.3
1.4
0
0
0
0
3.9
2.4
4.5
2.0
3.4
2.0
8.6
8.6
3.9
3.9
4.7
4.7
0
3.4
1.6
0
2.6
5.0
0
5.0
2.2
2.0
0
5.0
0
0
0
0.8
1.8
8.8
6.2
3.5
4.4
---
0
---
2.0
2.3
2.0
3.4
2.1
---
2.3
0
2.1
5.9
---
2.2
---
1.6
2.6
2.8
---
2.1
2.0
2.3
8.7
0
0
0
5.0
0.2
---
4.6
4.0
4.9
1.7
4.9
0
4.9
---
4.8
1.2
3.0
2.2
1.7
4.8
0
4.8
4.4
3.8
0
0
2.4
1.8
4.8
0
2.3
3.0
1.7
2.2
4.3
4.3
4.3
4.3
4.3
4.3
4.3
8.6
8.6
7.4
0
8.6
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
0
13.5
1.1
0
12.4
7.0
13.5
7.0
12.3
0
1.1
0
0
4.5
3.9
0
0
4.3
4.3
4.3
4.3
4.3
4.3
4.2
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.0
8.6
4.3
4.3
4.3
4.3
4.3
4.3
5.8
1.4
3.1
4.2
4.0
4.9
4.3
1.1
4.9
3.8
4.0
4.7
4.1
0
0
0
0
0
5.0
5.0
0
5.0
---
5.0
0
9.0
0
5.0
3.7
0
6.3
3.5
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
6.0
1.7
5.0
5.0
5.0
1.7
0
0
0
0
0
4.1
4.6
1.0
0
5.0
5.0
5.0
5.0
5.0
8.7
3.6
3.8
3.6
3.8
4.2
3.7
3.7
8.0
4.2
0
3.8
0
0.9
8.6
1.6
1.8
0
1.1
1.9
5.6
2.5
3.6
8.6
4.1
0
1.1
0
3.2
8.6
3.9
2.9
4.8
3.6
2.3
4.8
2.9
2.8
0
2.2
2.2
4.2
2.8
4.8
2.7
4.2
2.9
0
2.4
2.3
4.2
3.0
4.8
2.9
4.2
6.5
8.6
7.1
0
13.5
0.1
0
0
0.1
0
0
0.1
0
0
0.1
0
0
0.1
1.4
1.4
0.6
5.0
4.9
0
8.6
1.7
8.5
3.8
4.8
4.1
4.5
IC201-13
6Vp-p
[H]
IC851-10
1Vp-p
[H]
IC421-5
65Vp-p
[V]
IC201-28
0.8Vp-p
[H]
IC851-36
1Vp-p
[H]
IC201-14
60Vp-p
[H]
IC201-26
0.5Vp-p
[H]
IC851-34
0.5Vp-p
[H]
IC251-4
1Vp-p
[H]
IC251-20
1Vp-p
[H]
IC251-17
0.5Vp-p
[H]
IC201-41
6Vp-p
[H]
IC201-40
3.2Vp-p
[H]
IC201-39
4.8Vp-p
[H]
IC101-18
2Vp-p
[H]
MAIN PWB (1/2)
SFE-1031A-M2