Cave sound "mode" comes and goes with Pioneer VSX-820

[manolain]

I agree Grador, the processor board is toast.

The key is running it without proper ventilation.

All solid state devices have a time temps curve before failure, and the temp curve is an exponential one.

He has punched some holes in the semiconductor wafers and opening up intermittent (soon to be permanent) in likely, the micro processor.

Unfortunately manolian has had some expensive education in semiconductor failure.

This type of problem is not worth fixing. My best advice is to take this unit to the recycling center and order a new one. This problem can not be laid at Pioneer's door.

Hi TLS,

I am sorry but I am having some language difficulties to get your message, especially with bolded sentence.

Are you saying that due to bad ventilation, the processor is simply gone? (by some problem with semiconductor)

Is it not worthy to try to replace processor?

(sorry if my questions are too dummy, but I really dont know much about circuits)

 

[TLS Guy]

Hi TLS,

I am sorry but I am having some language difficulties to get your message, especially with bolded sentence.

Are you saying that due to bad ventilation, the processor is simply gone? (by some problem with semiconductor)

Is it not worthy to try to replace processor?

(sorry if my questions are too dummy, but I really dont know much about circuits)

Your microprocessor or associated component on the processing board is intermittently not working correctly due to abnormal pathways being opened up in the semiconductor material inside the chip. This was very likely caused by using the device in a closed cabinet.

 

[Grador]

Is it not worthy to try to replace processor?

The processor will be soldered directly to a board, and completely unavailable to purchase. It would be virtually impossible to replace the processor, you would have to replace whatever board it is on, which will likely cost approximately the same as a new receiver.