Video Circuit - Philco DVCR101 Service Manual

2. VIDEO CIRCUIT

A.EE SCREEN doesn't appear
EE screen doesn't appear.
YES
Is Video signal input at IC401
pin#30,32 and IC402 pin#2,12?
YES
Is 5V obtained at IC401
pin#23,24,45,52?
Is C.S.. DATA CLOCK signal
Input pin#53,54,55 of IC401?
YES
Is signal output from pin#26
Of IC401?
YES
Is signal input at IC601
pin#50?
YES
Is C-Sync signal input at
IC601 pin#58?
YES
Is signal output at IC601 pin#
52?
YES
Check RF Output.
NO
Check LINE JACK and PIF circuit.
Check DVD circuit.
NO
Check POWER circuit.
NO
Check IC601 pin#70,71,72
NO
Check 24 Q-V sync.
NO
Check PCB Pattern.
NO
Check PCB Pattern.
NO
Is 5V obtained at IC601
pin#53,98,99?
YE
Check IC601
YES
Check LINE out
- 18
NO
Check POWER circuit.