Mitsubishi CS-3535R PIP 930B500-002
 

Hi. Have sorted the lost video down to the PIP board 930B500 - this is the
larger board. Does anyone know of a bypass for this? Mits was supposed to
devise a workaround as this board is no longer available they say.

Anyway, here is what is wrong. S-video works fine, but composite video (jack
and tuner) gets lost on the chip IC7000 - flat surface mount chip where
inputs come in. If using S-video, you get good pip video Y and C from pins 9
and 11 on VP connector. When you use regular video or tuner video, there is
no video output from this chip to pins 9 or 11 or any of VP or FP
connector.

This has no surface mount caps. I did change a number of leaky regular caps,
checked rest, and checked all transistors on board. They were fine. I'd like
to get this monstrosity going and get the owner taken care of if possible.

Thanks much,

Danny