-3-
Service manual-EC5 chassis
BLOCK DIAGRAM (Main signal routing)
This is a diagram for all models and therefore differs slightly from the actual block diagram.
+130V
+24V
+18V
+15V
TU
VL
VH
U
IF
Q801
Q101/Q102
Q103/Q104
Q105/Q106
Tuner
Key scan
10 Scan
1 Tu
51 VL
52 VH
3 U
8 Standby
SCL 49
SDA 50
BLK 35
R 34
G 33
B 32
Sharp 3
Bright 6
Cont 5
Colour 4
TV/AV 14
6 SCL
5 SDA
46
45
22 R
23 G
24 B
21 BLK
14 Sharp
17 Bright
25 Cont
26 Colour
Volume 7
13 TV/AV
30 R-Y
31 B-Y
29 R-Y
28 B-Y
30 R-Y
31 B-Y
29 R-Y
28 B-Y
50 Sound
R out 18
G out 19
B out 20
CVBS out 7
SIF in 5
Int.video 13
Ext.video 15
Ext.audio 6
Audio out 1
H out
37
41
43
V-F/B
V out
4
2
42
8
R-out Q711
G-out Q721
B-out Q701
IC501 V-out
H-out circuit
Q431
Q432
V-control
circuit
Deflection
Yoke
T471 Flyback Trans.
High Voltage
Q151
X151
X161
Q161
Q154
Q241
SCART
19
20
2, 6
1, 3
Video out
Video in
Audio in
Audio out
Q1032/Q1031
IC801 CPU
IC201
IF/video/chroma/def.
IC802 Memory
X131
SAW
IC271 1H delay
IC001 Audio out
Power
control
circuit
T611
converter trans.
AC
in
Q839
Power supply circuit
CRT Unit
