Question about Yamaha RX-V1000 Receiver

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Yamaha RX-V1 Power

When I try to power up unit it shuts off. Pushing the power switch you can hear "clicking", but the unit won't stay on.

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  • 2 more comments 
  • pat1490 Nov 29, 2007

    If it does not shut down when disconnecting. What then?

  • Angel_Uriel Feb 01, 2008

    For some reason the unit shuts off every time I switch inputs, change channels on my satalite box, try to do anything with a DvD, or even fire up my playstation...If the Satalite box stays on one station the turner will turn on and stay on and all speakers are working...It seems odd to me to be having this sort of problem...I mean sure the tuner is old, but to be working early in the day, get turned off for a few hours, then be messed up on the next powerup...Have tried working it with the speakers unplugged but that doesn't seem to make a difference...

  • Andy4504 Mar 15, 2009

    I have a Yamaha RX-V2500 that is several years old now. I went to power it one day after just using it only hours earlier, but this time, it wouldn't stay on.



    Immediately shuts off after turning on.



    I disconnected everything but the power, issue persists.



    I checked some of the outputs with a meter, and the ones I tested were all OK. I haven't taken it apart any further to test the outputs that are burried deeper, but I have no reason to believe that they would be shot.



    Is this a common problem?

  • varballo May 13, 2009

    The very same problem....power does not stay on....sometimes it does...but lately it has benn a re-ocurrent problem...now..I will have to watch tv using the tv audio.....



    I will disconnect unit altogether..for awhile to see what happens.

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Got the same problem and did some searching.
Strange thing is that next day the amp works fine.
This is what I found on http://www.forums.hcsd.com.au/Blah.pl?m-1210733289/s-8/

SYMPTOM: The power cannot be turned on, or the protection circuit is activated to turn off the power.
CAUSE: Fluid leakage occurs from the backup capacitor C633 0.047F 5.5V (C662 in the case of RX-V3000/DSP-AX2) on the Function PCB and causes a short with the adjacent components and between patterns, resulting in operation of the protection circuit. Fluid leakage tends to occur with this capacitor particularly with high internal cabinet temperatures, with or without the power on. Often, the leakage is only visible with very careful inspection.

SOLUTION: Two types of backup capacitors are now available with a longer expected service life. When servicing, thoroughly clean the leaked fluid from the PCB and from under any nearby components before replacing the capacitor. There are models other than those mentioned above that use the subject backup capacitor. Check them for fluid leakage and replace the capacitor as needed.
PART(S): Old
Ref. No. Part No. Description Remarks
C633 or
C662
VT740700
V3860300 ELECTROLYTIC CAP 0.047F/5.5V Vertical type
* VU545000 ELECTROLYTIC CAP 0.047F/5.5V
Horizontal type
New
Ref. No. Part No. Description Remarks
C633 or
C662 WD294400 ELECTROLYTIC CAP 0.047F/5.5V Vertical type
* WD292000 ELECTROLYTIC CAP 0.047F/5.5V Horizontal type

Posted on Jun 24, 2008

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  • Master
  • 752 Answers

The amp is blown. Unhook all speakers and try it again. If it still shuts down it will have to be repaired.

Posted on Nov 29, 2007

  • Mitch
    Mitch Dec 01, 2007

    If it appears to operate normally while the speakers are disconnected, then the amp is probably ok and the problem is a blown speaker (which sends the amp into protection). If you don't have a DMM to test the speakers then you could reattach one at a time until you find the one that causes the failure, but you risk dameage to the amp if it doesn't shut itself down fast enough.

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1 Answer

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check ur speaker wires, try disconnect all wires from back of unit and then try to turn on unit .
if it stays on whit no wires attached than u have short connection at speaker wires .
if doesn`t come on then try to fasten screws at back of the unit ,
may sound like BS but if amp board don`t have good ground connection it can go in protection mode happened to me on RX-V592

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I have a Yamaha rx-v3000 receiver that lately has begun shutting itself off and then I have to keep hitting the power button until it finally stays on again. This may take 20 times of pushing the power...


Maybe a cool-down is what really fixes it, huh?

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 'nekkid'. 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.

Cost is way out of scope for us to predict.

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That may due to a bad power transistor, huge current flows when it's powered up, protection circuit kicks in and switch off the unit. Get to repair shop for check up and replacement.

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Hey, yeah that can be frustrating.

When you turn it up do you hear the relay or a clicking sound, then you turn it on and it comes back below the +2db?

Try unplugging All the speaker wires from the unit. Turn on the unit and listen for the click.
after the click, turn it up past the 2+ db mark and see if you hear it click or shut down. If it did not click off, then suspect a shorted crossover on one of your speakers.
2nd test is to plug in One speaker, and test it at high volume, it will not harm it. If it shuts off disconnect that speaker and try another. Only one at a time.
If it works at high volume, you need to isolate one of your speakers and i bet it has a shorted crossover that has been cooked. P.S. If one is bad, suspect they will fail at a later date.
If they all fail, use a friends speaker and try it before sending it to a repair shop.

P.S. i found one on ebay i think you can get for under $100 bucks in the box.

http://cgi.ebay.com/Yamaha-RX-V1400-7-1-THX-Select-Receiver-MINT-Condition_W0QQitemZ330311512027QQcmdZViewItemQQptZReceivers_Tuners?hash=item330311512027&_trksid=p3286.c0.m14&_trkparms=72%3A570|66%3A2|65%3A12|39%3A2|240%3A1318

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Hi Seems like you have a shorted output channel, remove all your speaker connections and try again, if the problem persist, good chances are that you need to replace a couple of power transistors, let me know if you need more help, I've fixed some Yamaha amplifiers with this problem Good Luck Miguel

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