Question about Yamaha RX-V1000 Receiver

2 Answers

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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