My receiver stopped playing any sound suddenly. I tried all the entrees and nothing.
I decided to measure +/- 7V which are responsible for the operation of the R2A15218FP chip, and the + 7V was only +6V. I measured the + 15V and it was only + 14V. The line - 7V, was ok. After many measurements and exchange of some caps, I realized that when I disconnect the turner pack, the + 7V returns to normal, but the -7V drops to -6V. From the tests I did, it does not seem to be a source problem. Any idea? Thank you very much, because this receiver is really hard to repair.
I decided to measure +/- 7V which are responsible for the operation of the R2A15218FP chip, and the + 7V was only +6V. I measured the + 15V and it was only + 14V. The line - 7V, was ok. After many measurements and exchange of some caps, I realized that when I disconnect the turner pack, the + 7V returns to normal, but the -7V drops to -6V. From the tests I did, it does not seem to be a source problem. Any idea? Thank you very much, because this receiver is really hard to repair.
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