Question about KLH R7000 Receiver

1 Answer

WAS working fine but seems lost part of listening frequency (IC Burnt??) Help

About a month ago had a small smell of burnt electronics and thought it was from the new TV I bought, but nothing was wrong. Yesterday heard my power regulator for the computer complaining (beeping) as if either I got a huge voltage spike in my electricity (or maybe something shorted somewhere) but the lights or circuit breaker of the house did not go out. Then at night went to listen to receiver and I notice the it was working partially. This is, everything works, sound through all channels, etc BUT it has lost VOLUME this is when volume at 35 out of 60, it sounds like 10 out of 60. Also it lost definition, the sub for example seems to have frequency missing. Could it be that some audio/output amplifier IC burnt? How many IC amplifier does this unit have? If one burnt would the symptom be as describe above?  Am I in the right direction to what is my receiver problem? Any help would be appreciated. Thanks

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 4 Answers

I had a similar problem with popping and then no audio for an extended period of time. I found the solution on another site, http://dexsoft.com/blog/?p=15

Apparently the solder joints are weak, and just a the blog described when I opened up the receiver I saw the same scorch marks from overheating. Just as the blog described, I added solder to each of the joints in the photo and have had no problem ever since.

I am no solder expert, this is my 2nd time, but all I did is build up each of the joints and I have been listening to music, playing movies in surround sound with no problems for the last 2 weeks.

Posted on Oct 04, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Technics SA GX500 sound went out while in operation. Checked all buttons, opened and the three fuses I found inside are intact. Any ideas?


Apart from the fuses what you have mentioned there could be small Relay to prevent both thermal as well power related problems apart from that the DSP and its support circuitry could have conked off . look for small PCB mount chip fuses near and around the DSP and a discrete Micro if it is present

Jun 22, 2015 | Audio & Video Receivers

3 Answers

Sound takes 10 minutes to come on from my Pioneer Elite 94 av receiver


I supose this is not how its suposed to work, only thing I can think of is somekind of a hardware side problem, Im sure you still have warranty on it, if you can you should go and get it replaced.

If you need more assistance let me know, I'm here to help

Apr 13, 2008 | Audio & Video Receivers

1 Answer

Pioneer 521 receiver shut off during a movie and then smelled like something burnt, now the receiver will turn on but turns off right away


Burnt smell means a mother board/circuit failure somewhere in the box. There is no owner fix for this. If you open it up you will probably see the charred solder. Back to the dealer

Mar 08, 2014 | Pioneer Audio & Video Receivers

1 Answer

How can I repair my Technics SA 505 Receiver ?


Hi Mark,

Start opening up the receiver and look for possible burnt cmponents.

pictures may be of help, if you need assistance in troubleshooting

your receiver.


Only if you feel you can DIY.

Oct 28, 2012 | Technics Audio & Video Receivers

1 Answer

No sound from unit, sometimes you get sound and other times nothing. When you do get sound everything works fine. Everything is hooked up properly, shut the unit off one day then turned it on next day and...


well there may be a simple solution, it could quite possibly be a fuse... if you open it up, after the power converter box and before it hits electronics, ther should be a fuse, this may be burnt out... but check inside before you go to buy a bunch of fuses as there are normally a couple spares inside, and if not, its easier to find the right replacement with the burnt out one in your hand!

Oct 11, 2009 | Onkyo TX-DS575 Receiver

1 Answer

Listening mode functions lost one by one


It needs service. Not worth repair though.

Jun 09, 2009 | Onkyo HTR500 Receiver

2 Answers

Yamaha HTR_5990


unplug everything that is pluged into the reciever. plug the power cord into an outlet with nothing else pluged into it and try it again. if your electronically experienced you could try to ground it and carefully try it again. give the unit a smell, does it smell a little burnt? if you have a screw driver and a little trust in yourself tale the cover off and look at the board for visual burn marks there should be fuses inside the unit, you could check those out. If you dont see anything visually wrong and it is still not powering it would be a good idea to bring it in to an electronics repair shop and they could diagnose the problem. With the use of a volt ohm meter it would not take long.

Jul 28, 2008 | Yamaha HTR-5990 Receiver

1 Answer

No audio


I know that a couple of you have had the same problem with the blowing 0.47 ohm resistors. I had responded quite a wile back, but forgot to make any updates. Kostiko is correct about the problem relating to these two 0.47 ohm resistors being blown. In my case on two different Haman Kardon models, this was true, but there could also be another issue. What i have found is even after replacing these resistors, the problem appeared to still be there. What was happening was that right after turning the receiver on, the resistors would blow again. What you need to do is replace the two small ceramic disc style capacitors on the same pcb as the fusible resistors, as they could be shorted as in my case. You could remove these capacitors completely, or replace them with a similar size of the same type, as they are really just there for filtering higher frequency noises from the power supply. You can check them with your multimeter first. They shouldn't shorted even in situe. I forget the size, but they are approximately 100 nano farads. Good luck. I have done this to my AVR135, and it has been running great for about 6 months now.

Jul 07, 2008 | Harman Kardon AVR 335 Receiver

1 Answer

Should I just Buy a new one?


You have a bad power supply or the audio output circuit has a short in it. You are correct by saying its probably betterv off getting a new unit. Most likly cost you more then a brand new shiny unit would . Good Luck PS Please do not forget to rate this thread

Dec 10, 2006 | Yamaha HTR-5740 Receiver

Not finding what you are looking for?
KLH R7000 Receiver Logo

114 people viewed this question

Ask a Question

Usually answered in minutes!

Top KLH Audio & Video Receivers Experts

The Knight
The Knight

Level 3 Expert

68229 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

5625 Answers

Larry Stiles
Larry Stiles

Level 2 Expert

286 Answers

Are you a KLH Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...