My TV is having a problem that I searcherd for but not addressed... My main picture is receiving no signal resulting in no picture or sound. However, when I turn on the PIP, it shows a station with no problem in the PIP box. When I swap, it tunes to a different station in the PIP, but still no picture/sound on the main screen. There is only one cable input and no other devices attached. I tried to reprogram and unplugged the TV for a day, but there was no resolution. Since the PIP is receiving a signal and picture, is there a component that accepts the signal input and then directs it to two separate locations - main & pip? Is it fairly easy to replace? This unit is not easy to transport and the nearest service is about 35 mi. away.. Thanks in advance
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