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Question for the audiophiles

A

Arkitech

Diamond Member
I have an Onkyo TX-SR503 that I bought about a year ago and lately it shuts itself for no apparent reason. I noticed this first happening when watching a DVD, the reciever cut off and when I turned it back on it shut down again. Oddly enough this problem did'nt happen when I watched cable TV (which is on a different audio channel), however this afternoon the same thing is happening on that channel as well.

Anyone know what might be causing something like this?
Is it overheating?
How much does it cost to have AV equipment repaired these days?

this sucks
 
My Kenwood VR-4090B has done this occasionally when it gets very hot. It has some kind of internal relay that causes it to shut down to avoid overheating. My setup is partly to blame - I had to remove the "feet" from the bottom of the receiver to fit it into my home entertainment center, so there's no room for air to pass underneath.

Try setting up a box fan in front of your home entertainment center to see if it helps.

My guess is that your receiver would not be cost-effective to repair - it seems to be available for less than $175, and many repair shops will charge you $50-75 just to open the case.
 
I would say overheating too...my Kenwood VR-2080 has done that once or twice when I was pushing it harder than normal. Mine has a cooling fan in it (standard size PC fan - I think it's a Panaflo, in fact) that comes on when it heats up a bit. Maybe your receiver has one and it went bad?
 
Check your cables. It could be a short or you are pushing it too hard. And those receivers are generally not worth fixing.
 
It depends. 99% of receivers have a thermal shutdown that protects the output transistors from thermal runaway. Usually, this shuts the speaker outputs off not the entire receiver .

So to clarify, does your entire receiver power down, or does the speaker outputs cut out? This is a big difference. If the receiver powers down entirely, then it may be a problem with the infrared remote circuit in terms of the shut down /power up circuitry.
 
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