Sanyo 28H1, Service Manual

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-5-
Service Manual EH1 chassis
Tu
Q105
X103
SAW
IC101
Q112 Q1231
Q1232
IC1200
Q1204
Q1201
Q1207
Q1202
Q1208
AV1 AV2
AV3
AV4
IC801
IC202
IC204 IC201
Double Scan
Converter
Video
Aperture
Control &
matrix
Q211
Q212
Q213
Q711
Q721
Q731
Q831
Q832
Q833
IC206
Q836
IC711
IC721
IC731
3
5
8
3
5
8
3
5
8
8
7
21
48
1
9
11
13
33
40
37
45
43
25
26
14
13
12
1
2
3
4
18
19
20
21
11
17
V-sync
H-sync
Y
R-Y
B-Y
Y/CVBS
C
CVBS
Video
V
Y
C
TV-out
Video
Video
R-Y
B-Y
R-Y
B-Y
16
14
12
11
R,G,B,BLK
AV2-R,G,B
AV2-BLK
R,G,B
Teletext
OSD R,G,B
13
12
11
10
6
7
8
15
2
3
4
13
11
10 12
IC207
11
BLK
10 12
14
9
5
BLK
H-sync
V-sync
Y
R-Y
B-Y
2Y
2R-Y
2B-Y
R
G
B
IK
BLK
RGB
23
24
35
34
33
32
Monitor-out
VR1201
(Front)
30
4.43MHz
osc.
IF
CPU
AV Selector
Video
Chroma
Def.
RGB
SW
Video Out
CVBS
Video signal rooting
Tu
X102
IC101
IF
Q107
6
5
22
Q3483
Q3484
Q3483
Q3484
Q3432
Q3431
5.5MHz
5.74MHz
1
15
8
7
7
8
14
13
16
7
29
8
15
3
5
9
24
1
23
13
11
5
3
14
8
10
23
18
15
2 4 7 12
1
32
28
30
AV Selector Circuit
BACK BOARD
L
R
L
R
L
R
FRONT AV
SCART
IC3431
Audio Processor
IC3531
3D Surround
Processor
IC3521
Equaliser
IC001
Audio Output
IC3800
A2 Stereo
Sound Demo.
IC3401
A2 Stereo
FM Decoder
IC3451
NICAM Decoder
AF1
AF2
L
R
L
R
R R
L L
R
L
L
R
L
R
SIF carrier
Main
Sub
I 2 C BUS
I 2 C BUS
20 1
49
50
16
17
From CPU
Audio signal rooting