I have traced the problem with my Mitsubishi TV to the PIP board.
It's badly damaged (cracked) and repair is questionable at best.

Does anyone have a documented bypass scheme for PIP board 930B500.1?
Any assistance would be greatly appreciated.

Try this:
On the 11 pin connector, jumper pin 5 to pin 11 ; jumper pin 7 to pin 9. Use
small electrolytics, say 1 mfd @ 50v, polarity unimportant (that's always
worked for me).

Try this:
On the 11 pin connector, jumper pin 5 to pin 11 ; jumper pin 7 to pin 9. Use
small electrolytics, say 1 mfd @ 50v, polarity unimportant (that's always
worked for me).