Sharp vc-ga56z Service Manual page 43

Video cassette recorder
Table of Contents

Advertisement

FLOW CHART NO.18
Picture E-E does not appear.
Is there picture input signal at pins(30) and (31) of IC201?
YES
YES
Is there picture input signal at pin(49) of IC701?
NO
YES
Check the line between pin(52) of IC201
and pin(49) of IC701.
Is there picture output signal at pin(47) of IC701 ?
NO
YES
Does 5V input at pin(51) of IC701?
NO
Check the AT 5V line.
Is there picture output signal at emitter of
Q251(video output buffer)?
YES
1 Line output: Check Q251 periphery and output terminal periphery.
2 RF output: Check Q251 periphery and tuner pin(6) periphery.
1 External input mode
NO
Check the line between the rear video input terminal
and pin(30) of IC201.
2 U/V tuner mode
Check the line between the pin(25) of U/V tuner and
pin(31) of IC201.
Is there picture output signal at pin(52) of IC201?
Does 5V input at pins(12), (61) and (90) of IC201?
YES
Is there serial data clock signal at pins(63)
and (62) of IC201?
Check the line between pins(63) and (62) of
IC201 and pins(56) and (57) of IC701.
NO
NO
NO
Check the YC 5V line.
NO
Check Q251 periphery.

Advertisement

Table of Contents
loading

This manual is also suitable for:

Vc-gh96z

Table of Contents