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My pioneer sx-315 audio reciever turns on for a few seconds and then automatically shuts off... Is there something wrong with the power supply? Does anyone have a schematic?

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The problem you are having is the unit is going into protect.

You can try disconnecting all the speakers and then see if it turns on. If it does turn on you may only have a bad speaker.

Then just turn the unit off and plug in one speaker at a time. If it still turns on, that speaker is good. Keep doing this with each speaker until it goes into protect again, and then you know the last speaker plugged in is the bad one. Make sure you turn it off after checking each speaker.

If it still goes into protect with all speakers disconnected you most likely have a problem in the amplifier circuit.

I have the complete service manual in PDF format with parts list and schematics, but it cost $10.00
Let me know if you want to purchase it and I will give you instructions for that. I can give you a direct download link after purchase using PayPal.

If you would like any further help just let me know.

Dave

Posted on Jun 27, 2008

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1 Answer

My pioneer overloads and cuts out


this unit draws alot of power if you have too many things plugged in on the same circuit then it will shutdown and reset itself. unplug reciever and plug straight into the wall

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I need to program my pionner sx-315 reciever in my directv remote control


I can help you with your Pioneer Receiver & DirecTV remote control.

This is a list of all the Pioneer Receiver control codes for DIrecTV remote controls:

31023, 30150, 30244, 30289,
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31343, 31384, & 31935.

There are so many codes to try for Pioneer Receiver and DirecTV, you might want to go ahead and do a DirecTV Remote Control Code Search.

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1 Answer

Reciever Shuts Off


chances are the speakers are the problem. try disconnecting the speakers and turn up to the level where it cuts out,if it does not cut out chances are a defective speaker or speakers,usally midrange or tweeter

Apr 10, 2010 | Pioneer SX-315

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Dead no power.. checked main fuse, worked fine last night, went to turn it on today and nothing. its a sx-316 not sx-315, I say this because it tells me this is not a valid model#, but sx316 is printed on...


Check the resistance of the primary on the main power transformer, (with power off) should be 1-3 ohms. If open you need a new transformer.

If good turn it on and check for ac voltage (120v) there.

Nov 26, 2009 | Pioneer SX-315

1 Answer

My sx-315 pioneer receiver overheated and shut down.


Probably the thermal fuse in the main power transformer. Check for ac on both the primary and secondary of the transformer. If you have 120v ac on the primary when the standby light is off and nothing on the secondary you need a new transformer.

Feb 08, 2009 | Pioneer SX-315

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Hello I have a Pioneer SX-315 and the power shuts off after 10-30 seconds what is wrong with this unit


try to reset the unit, i dont know how to reset but you can ask some expert, hopefully it works!!

Jan 15, 2009 | Pioneer SX-315

1 Answer

Power shut of after 10-30 seconds


power amp output section faulty.can you open the cover and listn the relay turned on while problem occured.come back after observation.
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Jan 15, 2009 | Pioneer SX-315

1 Answer

Pioneer model sx-315 shuts off


if you are hearing noises from inside the amp,then something is burning up. Your sense of smell may be a guide here too. I suggest taking the amp to a tech to repair it unless you have had some experience with repairing amps

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4 Answers

Owners Manual for a Pioneer SX-315


http://safemanuals.com/user-guide-instructions-owner-manual/PIONEER/SX-315%20-HTP-2500--_E

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