Service manual

VC-A565U/H965U

Picture E-E does not appear.

Is picture signal input into pins(30) and (31) of IC201?

YES

1 External input mode

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 picture signal output to the pin(52) of IC201?

Is picture signal input into the pin(40) of IC701?

Is picture signal output to the pin(38) of IC701 ?

Check the line between pin(52) of IC201

and pin(40) of IC701.

Check the line between pins(63) and (62) of

IC201 and pins(64) and (65) of IC701.

Is picture signal output to the emitter of video output

buffer (Q251)?

1 Line output: Check Q251 periphery and output terminal periphery.

2 RF output: Check Q251 periphery and tuner pin(6) periphery.

Is 5V applied to the pins(12), (61) and (90) of IC201?

Is 5V applied to the pin(42) of IC701?

Check the PC 5V line.

Check the AT 5V line.

Is serial data clock signal applied to the

pins(63) and (62) of IC201?

Check Q251 periphery.

FLOW CHART NO.17