Service manual

7-2 A8AF1BLV
Video Block Diagram
VIDEO SIGNAL
IC7001 (VIDEO SELECTOR)
DIGITAL MAIN CBA UNIT
CN302 CN3701
VIDEO23
TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
AUDIO SIGNAL
JK7702
VIDEO-IN1
COMPONENT -Y-IN1 COMPONENT -Pb-IN1 COMPONENT -Pr-IN1 COMPONENT -Y-IN2 COMPONENT -Pb-IN2 COMPONENT -Pr-IN2
JK7711 JK7713
56
28 24 26 18 20 22
6
4
10
2 8
40 34 38 32 36 30
3
S-VIDEO-Y19 S-VIDEO-C21
VIDEO-Y14
VIDEO-Pb16 VIDEO-Pr17
1 5 3
10
8 7
VIDEO SELECTOR
WF1WF2WF3 WF4WF5WF6
CY
S-SW1
9 S-SW2
JK7703 S-VIDEO -IN2
CY
JK7704
VIDEO-IN2
JK7701 S-VIDEO -IN1
POWER SUPPLY CBA
VIDEO
S-VIDEO-Y
S-VIDEO-C
VIDEO-Y
VIDEO-Pb
VIDEO-Pr
VIDEO-OUT
4
BUFFER
Q3
TU-CVBS11 13
TU1
DIF-OUT1 20
DIF-OUT2
21
(TUNER UNIT)
IF-AGC
18
CN303 CN3704
DIF-OUT122 2
IF-AGC18 6 DIF-OUT220 4
TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
DIF-OUT1 DIF-OUT2
IF-AGC
TU-CVBS