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I've got an old pioneer VSX 3800 receiver that shuts off occasionally while operating. Sometimes I can't get it to power back on again without unplugging it and plugging it back in. What could be causing this?

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Cold solder or poor contact. try to resolder all the components...

Posted on Jan 07, 2009

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While watching TV (all audio ran through my Pioneer VSX-516), the receiver shut off by itself, so I powered it back on. Then it powered off again a couple mins later, and wont power up at all now. I...


Try holding the "advanced surround" and "enter" buttons and see if it turns back on. If it shuts off again, disconnect all speaker wires and try it again. If it stays on, you have a bad speaker or wire. If it still shuts down, the amp is blown and needs to be repaired.

Mar 29, 2013 | Pioneer VSX-516-K

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Pioneer vsx-518-k power problem


Thyat is called the protection mode, There is a internal problem with it when they do that,

Dec 02, 2012 | Pioneer VSX-518-K Receiver

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Pioneer VSX-818V receiver. less than 3 years old. Getting no sound out of speakers all of a sudden. Signal to TV is ok just no sound. What component drives the sound out to the speakers? The sound stopped,...


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.

Aug 27, 2011 | Pioneer VSX-818V-K Receiver

2 Answers

My pionner audio video multi changer receiver vsx-498 shuts off then turns on when the receiver is on how can i fix it


The problem is not clear. Does the unnamed multichanger turn of/on wit hthe VSX-498 or is the VSX-489 having power issues?

Is the power cord of the multichanger plugged into the back of the VSX maybe the outlet is SWITCHED with the power state of the VSX..

Jul 15, 2011 | Audio Players & Recorders

1 Answer

Pioneer VSX-D509S keeps shutting off


Aside from any intrinsic problem with your receiver, the usual suspects are;
1) Poor receiver ventilation. 2) Very high levels of bass. 3) Shorts in the speaker wiring. 4) A rubbing loudspeaker voice coil.

Sep 20, 2009 | Pioneer VSX-D509S Receiver

1 Answer

Pioneer VSX-D209 receiver shuts off when too loud


Dear Tabasco,

Your receiver is basically going into protect mode.

Just check your speaker cabling again. Make sure that all of them are seated properly, none is touching each other or the body of receiver. Take out all the wire and put them back again if necessary..
Some times even a little tiny frayed wire touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough and it could blown a few trasistors in the power circuit.
Just check your speaker as well....whether they play all right thru another receiver or amplifier. its posiible they might be shorting inside. A little frayed wire could also trigger the protect circuit in your receiver.
I hope this should solve your problem.

If everything else seems all right and still your receiver shut down when you raise the volume then it possible that there are bad connections on the main board that are set in.

This would generally happen if the system is slighly old or have dry solder and when you raise up the volume. This should be a simple repair that will not require parts. If you can solder, you will be able to repair this yourself. If not, then a local service center will change the local labor rate.
Hope you can sort out your problem with the above trouble shooting. Let me know if I can guide you further.
Best of luck! Thanks for using FixYa!

Apr 19, 2009 | Pioneer VSX-D209 Receiver

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I have a pioneer vsx3700s receiver,can you tell me where i can find a schematic or repair manual for it?


www.stereomanuals.com
G12 price code = $21.00 + $2.00 shipping

Pioneer VSX-3700S AV Receiver Service Manual = G12
COMMENT: (1990) Also VSX-3600, VSX-3900S, VSX-3800, VSX-411S, VSX-401. (IMPORTANT NOTE) Circuit Diagrams and PCB Pattern Layouts (and Exploded View, Parts List) only, balance (if any) of manual on (1) (not included) microfiche card. There are some separate manuals which are almost entirely for the Remote Controls: for VSX-411S and VSX-401, see VSX-411S. for VSX-3900S and VSX-3800, see VSX-3900S.
STOCK# = PIOVSX3700S-SM
DESCRIPTION: 56 total pages (18 intentionally blank), constructed as the original including (almost entirely) 11in x 17in folded /trimmed pullout pages, card stock covers, neatly assembled with 5 staples and fiber reinforced taped spine. Models covered: VSX-3700S, VSX-3600, VSX-3900S, VSX-3800, VSX-411S, VSX-401. Overall quality is Very Good.

Feb 24, 2009 | Pioneer Audio Players & Recorders

1 Answer

Receiver randomly shuts off during play


This is the "Protect" mode. It is either a bad speaker, or not good ventilation, or a channel going out in the receiver. Please provide more details about the problem so I can help you better. How long is it playing before it shuts off, does it shut off even if the volume is low? Disconnect the speakers form the receiver and then turn it on and let it play without speakers, if it still shuts off then the problem is not the speakers. More information is needed to better diagnose this problem.

Jan 07, 2009 | Audio Players & Recorders

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