20 Most Recent
Sony STR-DE485 Receiver Questions & Answers
Optical audio
are you sure what your plugging them into on the TV is an output? most of the red white yellow jacks on TV's are inputs not outputs. also on same thing on the receiver make sure its an input not output
No sound protect mode
Protect on a sony usually means a short in the amp section. Would have to go in for repairs.
PROTECT DISPLAYED ON RECEIVER
This generally means you've got a short somewhere, and the received is trying to protect itself.
My suggestion is to disconnect all of your speakers at both ends, and reconnect them.
Most times this happens because a speaker wire is lose, and the positive and negative connections are touching each other, causing it to short out.
Hello, I have a Sony
Headphone jack is an output not input jack. Your going to need a cord to go from your headphone jack(output) of your phone to audio input on your receiver. The cord has a mini stereo plug to the phone and RCA plugs of left and right to your receiver auxiliary input. Good luck..
I have the word protect
Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.
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