A/V Circuit Diagram - Zenith ZDX-313 Service Manual

3. A/V CIRCUIT DIAGRAM

PB Y+C
REC Y+C
WAVEFORM
A B C D
IC301 Pins 53, 54, 55 are defective.
IC301 doesn't operate.
IC301 Pin 57 is defective.
PB COLOR Signal disappear.
IC301 Pin 59 is defective.
Auto Tracking is failed.
9
8
Q305 is defective.
Normal Audio Signal is not recorded.
E F G H I
3-37
6
X301 is defective.
PB COLOR Signal disappear.
3
Q306 is defective.
EE, PB Screen doesn't appear.
2
5
4
1
1
1
7
J K L M N
3-38
O P Q R S T