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GENERAL BLOCK DIAGRAM FOR EB4 CHASSIS
IC801
CPU
RC Pre.amp
Control Keys
47
10
2
3
2: Bright 3: Contranst
4
4: Colour 5: Sharpness
SCL
6
49
5
SDA
50
5
17
Functuin In(AV1/AV2)
18
IC802
Memory
IC810
CVBS In
24
Band sw.
VL
51
52
VH
14
1
U
X131
SAW Filter
TU
IF
Tuner
IC271
1H Delay
11/12
14/16
Audio Unit
SIF Unit
Audio Out L, R
Power Supply Circuit
T611
Converter Transformer
AC In
Q613
Q612
Main Board /Pannello Principal
Component Location/Lato del Componente
SW1901
SW1902
SW1903
Prog.+
Prog.-
Vol.+
R224
Audio Board /Pannello Audio
Component Location/Lato del
Componente
21P Scart: AV1
Audio I/O
Video I/O
V-In
B
16
24
G
23
R
22
BLK
21
45/46
External CVBS in
15
Internal CVBS in
13
R-Y/B-Y
28/29
Q151
Q152/Q154
R-Y/B-Y
7
30/31
CVBS In
R
20
G
19
B
18
H-Drive
37
41 48
IC201
IF/Video/Chroma/Def.
IC501
B6: 12V
Vert. Output
B8: 5V B7: 8V
V-Drive
4
IC652
V-Feedback
IC651
IC001
B1: 150V
Audio Output
B2: 25V
Audio In
B3: 15V
1/ 5
10/ 8
B4: 24V
L, R
L, R
SW1904
Vol.-
IC801
CPU
IC201
IF/Video/Croma/Def.
Scart 2
Scart 1
21P Scart: AV2
Video I/O
Audio I/O
V-In
6
3
1
8 Out
IC1202
Q171
CVBS int/ext sw.
CRT Unit
Q2601
Q2611
Q2621
Q432
H-Outpit
Q431
FBT
2
C512
DY
Speakers
VR501
IC1251
IC3451
K34A
HV
H
V
CRT Board /Pannello Cinescopio
VR611
Q611
R-BIAS
VR621
G-BIAS
Q621
VR601
B-BIAS
Q601
VR612
R-DRIVE
VR602
B-DRIVE
Circuit side/Lato del Circuito
Circuit side/Lato del Circuito
IC3401
IC3431
T3401
K34B
Component Location/Lato
del Componente
Q641
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