Question about Pioneer SX-315

2 Answers

SX-315 Suddenly Shuts Off

I recently bought this SX-315 from an estate sale. After putting a new cord on it, when plugged in, the display comes on for a few microseconds, then shuts off and smells kinda hot but doesn't smoke. Could it be the power supply board?


Posted by on

  • 1 more comment 
  • Pete7591 Jun 09, 2008

    Yep, I do have a multimeter, robotek. In fact, I have two types: digital and analog. Would the first place to look be the output and driver transistors?

  • Pete7591 Jun 09, 2008


    I disconnected the subwoofer amp board and low and behold,

    it worked! I don't intend to use a subwoofer anyway. It has to be on that particular board.

  • Pete7591 Jun 10, 2008

    I have it operating in two channel stereo mode. Only major problem is I can't adjust bass and treble from the front panel.

    I didn' get the original remote control with this receiver.



2 Answers

  • Level 1:

    An expert who has achieved level 1.

    New Friend:

    An expert that has 1 follower.

  • Contributor
  • 1 Answer

Sounds like speaker wire are touching each other somewhere. Check the back of the receiver and each speaker. If indeed that is the cause its making your unit go into protect mode. All it takes is one stray wire

Posted on Jan 01, 2015

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 1,512 Answers

Hi Pete7591

It is more likely to be an output stage problem. The unit will be shutting down as a result if a DC offset in a faulty channel. You will need to isolate the problem somewhat to diagnose what is going on. Do you have a multimeter and a decent knowledge of electronics? If so, then I can talk you throiugh some things to check. If you dont think you are up to it, I would take it to a HiFi repair guy for a look.

It may be more worth your while to buy a refurbished unit here for $132.

I am more than happy to answer any other questions you may have about it, just give me a hoy :)

Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.


Posted on Jun 03, 2008

  • Graeme Ross
    Graeme Ross Jun 09, 2008

    yes mate. Quick lesson on checking transistors.
    Check between the middle lead(collector) and either side. if you see low ohms anywhere, this channel will be the one down. . AFTER you have isolated the problem channel in the amp check power supplie/rectifier diodes for shorts also, remeber that there may also be more than one channel shorted. Pays to check em all if you re unsure before ordering parts.

    Lift middle and right hand leads off the PCB for each outputs(looking at the lead end). Desolder with a suction pump or wick.

    1. base(still soldered down)

    2. collector(middle leg)

    3. emmitter (right hand lead)
    measure with a diode checker on your most favoured meter
    1-2, 1-3 then swap the leads around.
    you should get a reading of between 0.5 and 0.6
    measured in one direction and nothing in the other(leads swapped red for black).

    then measure as follows for zero leakage.
    2-3, 3-2, then swap leads RED to BLACK and check again.

    To check drivers I always remove from cct, check emmitter resistors, and any diodes about the output stages and driver stages. Check any low value resistors you can see on the board.

    let me know how you go




1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I need wiring manual for awia sx-fn4500

Sounds like it needs a external amp to plug into.

Oct 12, 2014 | Car Audio & Video

1 Answer

Uniden 6.0 dect phone interchangeable with different 6.0 uniden

when the battery cover comes off there are a series of microswitches that are visible.. make sure the new ones are set with your originals..

Jan 11, 2014 | Uniden DECT 6.0 Cordless Telephone...

1 Answer

Pioneer SX-315 Speaker Problem

The bump may have broken or disconnected speaker wires.

May 17, 2017 | Pioneer SX-315

1 Answer

I have a Pioneer SX-315. When I try to change any of the settings I get a 'phonesin' error messagr on the display.

It's telling you it thinks the headphones are in. Remove them or troubleshoot why it thinks they're in.

Feb 27, 2011 | Pioneer SX-315

1 Answer

No surround sound like the movies


May 14, 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

1 Answer

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

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

Jan 30, 2008 | Pioneer SX-315

2 Answers

Pioneer sx 217 home theater system

you have to put the red and white cords into the tv section of the receiver and the yellow cord into the dvd console.

Dec 09, 2007 | Pioneer SX-315

Not finding what you are looking for?
Pioneer SX-315 Logo

Related Topics:

237 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pioneer Audio Players & Recorders Experts


Level 3 Expert

5342 Answers


Level 2 Expert

509 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a Pioneer Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides