Sanyo CE28D4-C, Service Manual

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F7WTV
BLOCK DIAGRAM
This is a diagram for all models and therefore differs slightly from the actual block diagram.
IC801 CPU
21P Scart: AV1
21P Scart: AV2
IC201 IF/Video/Chroma/Def.
IC1202 CVBS int/ext sw.
IC1201 CVBS AV2 sw.
CRT Unit
FBT
DY
IC001 Audio Output
IC501 Vert. Output
T611 Converter Transformer
Power Supply Circuit
Tuner
IC802 Memory
47 49 50
SCL
SDA
RC Pre.amp
6 5
51
52
IC810 Band sw.
14
24
17 18
2 3 4 5
2: Bright 3: Contranst 4: Colour 5: Sharpness
Control Keys
10
VL VH
U
IF TU
1
16
45/46
28/29 30/31
41
48
37
18
19 20
7
13
15 21 22 23 24
X131 SAW Filter
IC271 1H Delay
R-Y/B-Y
R-Y/B-Y
CVBS In
Functuin In(AV1/AV2)
11/12
14/16
B
G
R
BLK
External CVBS in Internal CVBS in
Q151
Q152/Q154
H-Drive
Q431
Q432 H-Outpit
V-Drive
V-Feedback
Audio In
Speakers
VR501
C512
H
V
HV
Q2601
Q2611
Q2621
Video In
Audio In L R
Q171
1
6
3
8 Out
4 Out
2
7
Audio I/O
Audio I/O
Video I/O
Video I/O
RGB/BLK In
B1: 150V B2: 25V B3: 15V B4: 24V
IC651
IC652
B6: 12V B8: 5V
B7: 8V
L, R
L, R
1/ 5
10/ 8
AC In
Q612
Q613
V-In
V-In
V-In
R
G
B
CVBS In
Audio I/O
SIF In
Audio Out L, R
4
2
SIF Unit
Audio Unit
Q-Sound Unit
L
S2
R