Question about Onkyo TX-SR503 Receiver
My reciever will not turn on, when i plug it in the standby light comes on, when i press power u hear a click but no display power. If anyone can help me please do.
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Posted on Jan 02, 2017
the 7.1 sound not all the movies has that feature and u need to emulate it, doit in the dolby digital ex and the speakers must sound.
try the volume for the SBL or SBL maybe are to low.
decrease the volume for all the speaker less the SBL, SBR and check it out.
Posted on Jan 12, 2009
SOURCE: i have an onkyo HT-R560
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.
Posted on May 07, 2011
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