Question about Onkyo TX-NR1000 Receiver
I had my TX-NR1000 off and disconnected for two weeks while on vacation to protect it from power surges and such. When I reconnected the receiver,it worked fine for a couple hours and then the sound went away while watching/listening to Sat TV. The receiver remained on and all switching functions worked, only no sound (not even the test tone) from any source and to neither A or B speakers (not even to the headset). I turned it off and on and sound came back for a minute and then it was gone again. On my second try it didn't come back at all. IF I set it for Direct Audio there is sound. So it would seem that the problem is in the DSP, since any and all processing kills the audio. What do you think? I have already tried: disconnecting all speakers and external sources, initializing the receiver, connecting only one speaker at the time, letting it connected for a couple of days, disconnected for a few days... I do have the Service Manual in case you want to point me to a section in there. A local technician (not Onkyo service) tells me the amps are operational. Thank you!
My speakers call creative on my computer wont work they use to,i hear sound but not audible
Posted on Dec 24, 2007
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Posted on Jan 02, 2017
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(North American and Taiwan models) You can connect speakers with an impedance of between 6 and 16 ohms. If you use speakers with a lower impedance, and use the amplifier at high volume levels for a long period of time, the built-in amp protection circuit may be activated.
The STANDBY indicator flashes red
The protection circuit has been activated. Remove the power cord from the wall outlet immediately.
Disconnect all speaker cables and input sources, and leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect the power cord and set the volume to maximum. If the AV receiver stays on, set the volume to minimum, disconnect the power cord, and reconnect your speakers and input sources. If the AV receiver turns off when you set the volume to maximum, disconnect the power cord, and contact your Onkyo dealer.
Generally speaking, an amp protects 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.
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