Can't Receive Ch 23-48

I was having trouble with blinking red light, no picture or sound, checked and touched up several bad solder joints. Everything works except now I cannot receive Ch23-48. All other channels work, as does VCR and DVD connections. I use VCR to view all channels. PIP works as well except CH23-48, any ideas?

Guy Dickes Dec 31, 2006

Rechecked all solder joints, TV coming on solid. Ch14,15,23-48 are snow/no sound; PIP tuner is all snow/all channels. I removed the RF input to PIP tuner,plugged in a cable feed and received CH18. Changed cable leads to rear connections, disabled VChip as well. I have the schematics. Next I will check voltage to PIP Tuner. Any ideas? VCR and DVD inputs work fine. Which IC controls channel selection?

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It looks to me that u still have some dry joints, look carefully with a magnifier glass and resolder those bad joints

Posted on Dec 28, 2006

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Can't Receive Ch 23-48