Philco DVCR101, Руководство по обслуживанию

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