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Sony sa-wmsp2 speaker protection relay turns off

The overload/thermal protection kicks in regularly, also at weak sound or low volume. It is an intermittent fault, gradually the periods of proper behaviour are reducing.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 15 Answers

SOURCE: Sony amp str-db940 - protection

Somewhere in your speaker wiring, you have a shorted wire. This short can be as simple as a single strand of wire touching the other terminal on one of the speakers.

With a bright flashlight, look carefully at the back of the receiver and then the speakers for any loose strands.

Posted on May 27, 2008

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  • 19 Answers

SOURCE: SA - VA1

Hey you might find a solution on this audio and wiring blog: www.audioholicblog.com

Hopefully this helps! Good Luck!


Dannyboy!

Posted on Sep 20, 2008

  • 92 Answers

SOURCE: Technics SA-DA10 jumps into overload after 10 minutes

Have you tried connecting speakers? What was the result?

Yes, when you turn the volume up on these amps (or when the output gets past a certain level) the cooling fan should automatically come on.

Posted on Oct 14, 2008

  • 336 Answers

SOURCE: raised volume cuts sound and gives me "overload" message

A couple of possibilities: Bad solder on power regulators (attached to main heat sink) or cooling fan may not be turning on when volume is raised.

Posted on Jan 16, 2009

ginko
  • 19396 Answers

SOURCE: VSX-D608 Overload and shutdown

Overload is displayed when the amp draw is excessive, and can be caused by different faults.
when Overload is detected, the protection circuit will shut down the unit to prevent further damage.

The first thing to try is hard reset. Shut down the unit for about one hour to drain power completely.
This can fix minor problems that can cause overload, for example electrostatic charge accumulation on internal capacitors.

If that does not fix the problem, then you must find the fault.

Overload can be caused by shorted speakers, wrong impedance speakers, or by a contact on speakers wiring.
Check speakers connection and test different speakers with 6, or better 8 Ohms impedance.

Another test can be done by unplugging all speakers, and reconnecting and testing them one at a time, at a very low volume.
No more than two 4 Ohms speakers can be connected to the unit, or you will get overload.

If the speakers are OK, then preamp, shorted input/output connectors, main power supply or faulty output transistors can draw too much amps causing overloading.

In that case it is recommendable contacting Pioneer at the number listed on the owners manual.

Posted on Jun 22, 2009

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1 Answer

My Sony SA-WM40 subwoofer has power, but sound kicks out. I'll turn off power for about 5min and when turn power on, sound is back. Is something overheating?


Probably, or the woofer coil itself is experiencing a heat, volume or motion related short. Clean any dust or debris from the heat sink fins in the back. Make sure it has lots of space for cooling ventilation.

Mar 31, 2011 | Sony SA-WM40 Subwoofer

1 Answer

My panasonic sa ht670 is powered on but after a certain volume the sounds shuts off but power stays on. whats wrong?


you are causing the fuse circuit to kick in by overloading the speakers. if you want more volume,, but some powered speakers

Mar 17, 2011 | Audio Players & Recorders

1 Answer

Technics SA GX910 ... powers up fine, meters and displays fine ... no sound (already checked jumpers, tape moniter, mute) light on volume control not on and headphones don't work


there is a problem in the low voltage power supply internally,or the speaker protection has kicked in.
unplug all speaker wires,and if the amp comes on,there is a shorted speaker wire somewhere.

Aug 15, 2009 | Technics Audio Players & Recorders

2 Answers

Pioneer SA 9800 Ampliffier Output transistor going off frequently


I assume these are the complimentary pair that drive the speakers. On one of the speaker. You know I think you have a short in the speaker that it drives. Speaker can fuction even if there was a problem with it. I think what happened is when the original transistors shorted out it overloaded the speaker, but not to a point where it is burnt. There is nothing that can overload a power transistor except the speakers, I design a lot of amplifiers, the base input can overload it if you put dc in there, but that would make a the sound all distorted, I assume the sound seem fine. Solution is try connecting a known good speaker and I bet it wont burn out anymore. Even if the speaker look fine don't trust it.

Jun 30, 2009 | Lasonic TRC-931 Cassette Boombox

3 Answers

Overload at medium (4-6) volumes. Can you adjust or disable the overload protection on these Technics amps??


try this mate:
http://www.electronicspoint.com/googlesearch.php?cx=002919058480771089906%3A03mranmmdze&cof=FORID%3A10&ie=UTF-8&q=Technics+SA-GX550&sa=Search#862

May 23, 2009 | Technics SA-EX400 Receiver

1 Answer

Replacing sub speaker


I wouldn't try reinventing it by replacing the driver. Drivers and their enclosures are designed to work together. And this being a self-amplified subwoofer, there is one more piece that's electrically optimized to the rest. Don't mess with it.

Why don't you just set your receiver's individual relative speaker volume levels so the sub isn't weak by comparison to your other speakers? Weakness, as you call it, is relative.

Is your receiver properly channeling Low Frequencies to the sub? Experiment with the cutoff, too.

This problem doesn't require meatball surgery.

May 18, 2009 | Sony SA-WM500 Subwoofer

2 Answers

Overload protection


Doe this always go into overload independent of the volume level? Try disconnecting the speakers completely and running the set. Does the set shutdown then too?

Thanks,
Dan

Jan 16, 2009 | Technics Audio Players & Recorders

1 Answer

Technics SA-DX950 surround sound problems


The most likely culprit here is the output protection relay. The contacts are a little corroded and the higher volume "jumps the gap" temporarily "cleaning" the contacts. The relay should be changed. I don't have the manual with me, but the following relays are in the unit. One of them is the speaker relay:

Part # Cost
RSY0054-C $12.63
RSY0040M-0 $ 5.89
K6B2AHA00014 $ 8.14


Dan

Nov 12, 2008 | Technics SA-DX950 Receiver

1 Answer

Onkyo 9555 protection circuit


Make shure your speaker wiring is solid hookup to amp and spekers (NO CROSSED WIRING). Also make shure speakers are not wired in parallel or the speaker impeadance will be to low and amp will kick out.Turn speakers off then hook up headphones and crank up volume then see if amp kicks out.If it does you have an internal overload and needs serviced. If it playes ok then you must have speaker problems or wiring.
GOOD LUCK
BIGREDl

Mar 26, 2008 | Audio Players & Recorders

4 Answers

Amplifier displays "Speakers are overloaded" and switches off


Either the amplifier protection circuit is kicking in due to a fault, or your speaker wires are shorting. Could also be a fault in a speaker - shorted turns due to overdriving. Check amp with speaker leads disconnected, and if OK, see above.

Dec 10, 2007 | Panasonic SA-XR55 Receiver

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