Onkyo TX Problems

[MyHeresyIsMe]

Has anyone dealt with a TX-88 receiver that will power up but stick in only one mode (CD) and will not play? I don't know much about the technology of the receiver, but I do know that I have taken the cover off, De-Oxit the pots and switches, and made sure the connectors were tight and dirt-free. It would work normally. I would turn the unit off. Then next time I turn it on, it would freeze. I've read that that some computer chips on this model can be intermittent. If so, I need to take it to a tech. Thanks for any helpful comments!

 

[sregor]

Just a shot - a lot of the receivers of the early 80's use to freeze up due to bad or intermittent crystal for the processor. Tap or heat can sometimes verify problem.

 

[MyHeresyIsMe]

That helps, Steve, and I have not heard that before. I have tapped here and there on the circuit board but not sure what I was tapping, I was shooting in the dark. I don't know where the processor is. I thought of doing a flowing the soldering points again on the circuit boards. What is frustrating is, when it works, it work very well; then when it freeze. there is no budging it at all. I will check on the schematics to see where the processor is on this model. Thanks again for your help!