Yamaha HTR-5650 Receiver Logo
A
Alex Foley Posted on May 12, 2014
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

Check SP Wires Problem

My Yamaha receiver used to be fine, until sometime ago when it started turning off after a while and signalling "check SP wires". I check all wiring very carefully and even changed the cables. but even without any speakers connected to the receiver it turns off in a matter of a second after switching it on. Anybody knows what to do about that?

4 Answers

The Knight

Level 3:

An expert who has achieved level 3 by getting 1000 points

Top Expert:

An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

  • Yamaha Master 76,851 Answers
  • Posted on May 12, 2014
The Knight
Yamaha Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Top Expert:

An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

Joined: Oct 14, 2010
Answers
76851
Questions
30
Helped
15126438
Points
237762

There is any short circuit either at its speaker end or its amp output circuit. Just disconnect all of the speaker wires, and turn ON the set, If the set behaves so, as it was, make sure that the amp output circuit has the fault. Is this the case, contact any service technician.
If the set switches On and stays as it is, after disconnecting all the speaker wires out from it, switch of the set, and connect the speakers one by one at a time, switch on the set, and check, which speaker connection causes it to a halt. Thus you can identify the faulty speaker. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

Steve K

Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Genius:

An expert who has answered 1,000 questions.

  • Yamaha Master 1,054 Answers
  • Posted on May 12, 2014
Steve K
Yamaha Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Genius:

An expert who has answered 1,000 questions.

Joined: Dec 24, 2012
Answers
1054
Questions
0
Helped
577663
Points
2865

There is a short in the receiver that will need to be repaired. Best to take it into a shop

  • Alex Foley
    Alex Foley May 12, 2014

    Thank you for the fast answer. I took it right away to a shop. They told me to throw it away. Because of it's complicated wiring it would be cheaper to buy a new-used one..

  • Steve K May 12, 2014

    not neccesarily. depends on what the problem is. It could be as simple as a capacitor on the speaker lines or it could be a problem with the amp. If it's the amp, then it probably would be expensive, but if they just told you to throw it out without really looking at it, then they are doing you a dis-service. I repair these types of units everyday.

×

Ad

David Spradling

Level 3:

An expert who has achieved level 3 by getting 1000 points

Top Expert:

An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

  • Yamaha Master 13,529 Answers
  • Posted on Aug 21, 2022
David Spradling
Yamaha Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Top Expert:

An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

Joined: Feb 25, 2015
Answers
13529
Questions
0
Helped
970606
Points
28411

Going into protection mode bad amp or outputs

Bhishan

Level 1:

An expert who has achieved level 1.

  • Contributor 1 Answer
  • Posted on Aug 02, 2022
Bhishan
Contributor
Level 1:

An expert who has achieved level 1.

Joined: Aug 02, 2022
Answers
1
Questions
0
Helped
20287
Points
4

Faced the same issue. Checked all the probabilities referred herein. Lastly tighten all the screws of speaker wire properly. Thereafter the error is not being displayed and the unit is not turning off

3 Related Answers

A

Anonymous

  • Posted on Nov 08, 2007

SOURCE: Yamaha htr5730 receiver - turns off

You may have speaker wires touching each other or a short circuit in the wire. "Check SP Wires" means to check your speaker wires.

Ad

Anonymous

  • 3130 Answers
  • Posted on Aug 05, 2006

SOURCE: check sp wires?

Your problem most likly is not because of dust. Its a bad connection in the amp section or the protection circuit, or the speakers them self have a problem. There could also be a componet problem. Unless you know how to troubleshoot solid state electronics,you should take the unit in to be serviced. It would most likly cost more then its worth to repair. A unit this old is u replaced at this point. Good Luck

Gurudristi

Sachin

  • 98 Answers
  • Posted on Mar 12, 2009

SOURCE: my yamaha htr 3750 said check sp wires then turned off

Your Yamaha is going into protection model.

This mostly happens when:
1). There is rise of internal temperature.
2).Core wires of the speakers are touching each other or a core wire is sticking out of the terminal and touching the set's rear panel or the speaker itself has a problem.
3). Speakers with an impedance other than specified are being used.
or
4). the set is damamged or has bad solder / dry solder connection .

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. Rewire if necessary..
Are you using banana plugs for connecting speaker or just directly. 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.

If everything else seems all right and still your receiver shut down then it possible that
1).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. This should be a simple repair that will not require parts. If you can solder, you will be able to repair this yourself. I could guide you a bit. If not, then a local service center will change the local labor rate.
2). Some transistors have blown on the output power board:
This will require little bit of more electronic knowledge.

I suggest if your set is still under warranty, then please take it to Yamaha.

Hope you can sort out your problem with the above trouble shooting. Let me know if I can guide you further.
Thanks for using FixYa!

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Yamaha Theatre receiver turns off at high volume 'Check SP wires' checked speaker wires no problem found. Why is this happening?

there are usually 2 things that cause this, (1) a driver in your speaker is going bad or a output IC/transister is going bad. Being a tech I have seen devices that operate fine at low to moderate levels but would fail when driven hard.
1helpful
1answer

My yamaha receiver RX-V363 keeps shutting off and saying check SP cable

It is one ot two things, the audio output transistors or ic,s are shorted, or the speaker wires in the back of the surround sound are shorting.
0helpful
1answer

I JUST REPLACED MY OLD RECEIVER WITH A YAMAHA AND DON'T SEE WHERE TO CONNECT THE POWER FOR THE CD AND TAPE PLAYER. DO I PLUG THEM INTO A POWER STRIP?

Yes, that will be fine just make sure its the same AC power as the new Yamaha is using.

Before connecting any AC mains always turn off your Amp, and don't turn back on again until all the signal cables for the new equipment are connected.

When checking if it all works, always start with low volume to check everything is correct.

Hope this helps
Thanks for using FixYa

0helpful
1answer

SAID CHECK UR SP CABLE?

Don't you mean it said, "Check SP wires"?

And what was the result when you did that?

How about if you disconnect all the speakers and try again. Then what? Add one at a time until it either fails again or starts working with all speakers attached.

Still fails with all speakers disconnected? Take it in to a shop.
0helpful
1answer

Receiver shuts off intermittently, when you turn it back on it says "check SF wires". What are SF wires?

It's "check SP wires". It means (do I have to say it?) Check the Speaker Wires for short circuits.
0helpful
1answer

I have yamaha v863 receiver. when i play movies on dvd. Any times

Check to make sure no wires are touching at the reciever. Next step is process of eleminaton. Unhook each speaker until it works or if you have a meter you could always check to see if you have a blown speaker or shorted wire. I would first disconnect all speakers and check to see if unit does it with no speakers connected.
0helpful
1answer

Yamaha HTR 5740 AV Receiver

This error message means there is a short across one of the speaker leads, i.e. red is touching black. Turn power off and disconnect both speakers (or all in case you are running a 5.1 setup.) Reattach one speaker and turn power on. If no error message, turn off and reattach second speaker. Continue doing this until you get the error message. Once you have determined which speaker is causing the problem. Check both ends of the wire and look for a short. If none can be found, the problem is probably with the receiver.
0helpful
2answers

Check SP wires

There is an internal short that is being detected. This is probably a defective output transistor that is somewhat sensitive to heat. This should be a straightforward repair with a parts cost in the $20 range. Add in the local labor rate for the total cost.

Dan
22helpful
9answers

My Yamaha HTR-6050 shuts off at random times and says "Check SP Cable"

That is a check the speaker wire error, caused by a short or perceived short. If you look at the back of the receiver you may see 1 strand of the wire loose, they are very hard to see sometimes. You may use banana plugs as it is painful to get everything hooked up without a few loose strands.

If there is still the issue check your speaker connections for the same issue. If they are in ceiling/wall speakers disconnect them all then plug them in one at a time to narrow it down.

If the issue persists perhaps one of your speaker wires has a short somewhere, could be a misplaced drywall screw from hanging a picture, or a carpet tack strip, or a pet deciding it was a nice chew toy.

If you are completely sure it is none of those then I would say it is a bad speaker or receiver. Try changing in and out known good speakers/receivers if you have access to them to see which one it is.

Good luck
0helpful
1answer

Yamaha htr5730 receiver - turns off

You may have speaker wires touching each other or a short circuit in the wire. "Check SP Wires" means to check your speaker wires.
Not finding what you are looking for?

20,297 views

Ask a Question

Usually answered in minutes!

Top Yamaha Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5755 Answers

Brad Brown

Level 3 Expert

19187 Answers

Paul Bade

Level 3 Expert

1844 Answers

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

Answer questions

Manuals & User Guides

Loading...