Question about Technics SA-EX320 Receiver

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Bad sound when running signals through

Trying to run TV sound through the receiver. have tried running signals from TV audio output out to the receiver, have tried running signals from DVR to receiver, DVD to receiver, etc. All of the above result in terrible sound. Loss of midrange and treble frequencies, and the sound is so low that I have to turn the volume way up on the receiver. I am afraid that I will blow out the speakers if I forget to turn the sound down before I select the CD audio source. Any ideas? The CD sound is great. Using RCA cables. Have switched to different RCA cables. No help.

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I would guess that the switching chip is faulty inside the receiver. Since the CD works OK, the amplifier section and pre-amp section are good. What you are hearing with the others is crosstalk. This chip shouldn't be more than about $10-$15. Add in the local labor rate for the total repair cost. I think that the chip for your model is a TC9163.
Dan

Posted on Jun 02, 2008

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