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Yamaha rxv-992 receiver wont power up

Hi, my yamaha receiver power on just a split second then no power. I made sure the impedence selector switch was set exactly and tried again. no luck .. any ideas?

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Disconnect all your speakers from the receiver. Turn the power on, and see if it stays on. If the unit shuts off with all the speakers disconnected, then you most likely have a faulty unit, and it will need to be repaired or replaced.

If the unit stays on with all the speakers disconnected, then you most likely have a bad speaker or a bad connection with the speaker wire.

Starting with one speaker, hook it up, and turn the unit on, and again see if the unit stays on, or if it shuts off. Do this until the unit shuts off when you connect a speaker.

Then disconnect all the other speakers, and leave the suspect speaker attached. Again, try to power up the unit. If it fails with that speaker attached, but works when it is not attached, then that speaker is your problem.

Posted on Dec 09, 2008

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Wont power up, or stuck in "protect mode"? Unplug the unit & let it sit for a couple hours, then plug back in & listen for a "click" a turn (power supply relay energizing.) If no lights & no click, the first place to check is the mains fuse. If the unit is under warranty - take to an authorized facility & they will take care of it for you.

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sounds like your speakers might not match your receiver. check the back of your speakers for the ohms eg 4 , 6 ,8 impedance.
you have to match the specs of the receiver otherwise it cuts out.

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It's odd that you can't find this issue in the manual, however, are there any blinking indicators? If it's a microprocessor(computer inside your Yamaha) that's locked up, you may try unplugging the power for an hour, and then plug it back in. If you're interested in having your Yamaha repaired, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.

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Yamaha Cinema DSP Natural Sound System AV Receiver #RX-V459 was installed in 2005. It has never worked correctly. It sets on an open entertainment center. It has space all around, 2"on top and...


Are you saying the unit dies in 30 seconds at home but it works fine at Radio Shack?

Maybe you need to assess your power sourcing or any other condition that's unique.

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. Eure 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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Are there any indications just prior to its turning off?

Are you running anything that draws more than 100 watts on its convenience AC outlets?

Check the speaker impedance selectror switch on the rear to make sure it is fully in the desired (and correct) position.

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I want to play my tascam guitar trainer through my yamaha pa. will there be any impedance problems . Want to use this as background music, howecer have little knowledge about pa systems. thanks


You'll be just fine. The Yamaha PA inputs are able to take high or low impedance inputs via the Line-In (1/4") input.

I would not recommend plugging your trainer into the mic level (XLR) input. The preamp will be fine, but you'll have to turn the gain so low that you'll be in the nonlinear part of the gain circuit, and the sound quality will suffer.

If that helps, hit the "thumbs-up" for me. If you have other questions, or if I can explain further, just post-back and I'll see what I can do.

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Setting the RX-V861 remote control to operate Zone 2:
  1. Using a ballpoint pen or similar object and press the [CODE SET] button RX-V861 remote control. The[TRANSMIT INDICATOR]on the remote should flash twice.
  2. Using the [NUMERICAL KEY PAD] on the remote and key in 9992, the [TRANSMIT INDICATOR] should flash.
Assigning the receivers internal amp for Zone 2:
  1. Set the remote control selector to [AMP]. (Located to the right of the volume buttons on the Remote.).
  2. Press the [SET MENU]button on the remote control.
  3. Arrow down to Manual Setup and press the Enter button on the remote control.
  4. Arrow to the [SOUND MENU] option and press the [ENTER] button on the remote control.
  5. Arrow to Speaker Set and press the [ENTER] button on the remote control.
  6. Arrow to the EXTRA SP ASSIGN and select ZONE2
  7. Press the [RETURN] button on the remote control to exit out and return to the Manual Setup.
NOTES: There is an option for setting the Maximum Volume and Initial Volume in the Zone Set menu.
  • Max Volume: This is an optional feature but isrecommended to prevent the accidental change in volume levels thatcould damage the speakers and receiver.
  • Initial Volume: This is also a great feature that would seamlessly start the volume level for the second or third zone at the desired level.
We do not recommend using any Speaker Selector boxes to enable more than the recommended number of speakers per terminal.
Controlling Zone 2 using the RX-V861 remote control:
  1. If the Main Zone on the receiver is on, press the [POWER BUTTON]down and while holding that button down press the [PHONO]/[**] button on the remote. The [TRANSMIT INDICATOR] will light up.
  2. You will not be able to use the following buttons on the remote: (Pressing any other button will cause the remote to exit Zone 2 mode. [POWER], [STANDBY], [VOLUME], [MUTE] and the [INPUT SELECTOR] buttons [DVD], [CD], etc.)

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There are the instructions as written straight from yamaha. If you need any further assistance please let me know.
Thank you,
Lee

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