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I have a Quest QSR5000 Receiver, not under waranty, the main left channel does not work. Everything else works, all other channels, but there is no main left stereo channel. What could I do to attempt fixing it myself? Thanks

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Fixed mine soldered main pcb all discolored joints. mine was doing all kinds of random stuff, now works fine. just be careful not to bridge connections and do not overheat components. just heat joint long enough to make a good joint.

Posted on Oct 22, 2012

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Posted on Jan 02, 2017

techman
  • 3130 Answers

SOURCE: Left channel out

probably I would say no. Unless you know how to read a schematic or know how to do certain small static checks on the output devices and the drivers as well as the power suppy feeding these devices.

Posted on Apr 05, 2006

  • 15 Answers

SOURCE: Sony STR-DE945 5.1 Channels Receiver

Hi, Happened across this forum looking for some remote info. Had a similar problem with my 945...main speaker outputs started to click off & on, no rhyme or reason. Found that the solder joints on the speaker output relays were cold (poor soldering). Actually happend twice, two different relays. Took me a while to find it, reflowed the solder, that solved the problem, over two years ago now. Are you able to dig into the receiver? Do you have a (good) soldering iron and some solder? If not take it to elec. shop and tell them to look for cold joints on the relays.

Posted on May 11, 2007

lynchms
  • 93 Answers

SOURCE: 5ch/7ch stereo in 5 channel mode

Front panel button engaged for 5 or 7 channel operation? Also check front panel rear surround speakers button is engaged. Should get you back to 7.1 unless you have changed the rear surround speaker setup for a 2nd zone, also be sure you have a 7.1 DSP setting enabled.

Posted on Feb 22, 2009

  • 4234 Answers

SOURCE: I have a Fisher RS-717 stereo receiver, amplifier.

Yes you can use either A or B without a problem. The restriction is when you have both A & B connected. In that case, the speakers MUST be a minimum of 8 Ohm impedence. Using either A or B, you can use speakers of 4 Ohms impedence.

Dan

Posted on Nov 24, 2009

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1 Answer

Left channel not working on a or b


Assuming everything is plugged in properly (check the manual to be sure), and you're using a setting that makes use of the left channel (try the Stereo setting to be sure), something has failed within the receiver. This type of receiver isn't designed to be user-serviced. You'll need to send it to a qualified repair shop or replace the unit altogether.

Dec 19, 2013 | Yamaha RX-V3300 Receiver

1 Answer

One channel out on the HK AVR85. Tested all inputs. Is there a fuse inside???


In an answer to to your "quest.... Is there a fuse for speaker output"


• the answer is none.

but there is a relay in between the main amp output

and the speaker terminal at the back.



In your statements : " Inputs all good ",


• Check first the line outputs at the back of the receiver , just to

determine if the preamps are working.



• connect outputs to a separate amplifier



the answer will determine

your "quest ...is this most likely a bigger issue??? ? "


I almost forgot to ask what channel are you referring to?


Say, front left channel like you said is dead,

after checking the line out there is no output either, then the

trouble or fault can be starting from the input line to these output.

These could be capacitor coupling, resistors , op-amp IC

or possibly just a cold solder joints.


Here is a sample troubleshooting :

only for Computer Speakers
(but may also apply)


• If there is an output , then trace on the main left amplifier


could be a colder joint also, check until you reach the relay.



Let us know if you have any more questions or if you need

further assistance!

Sep 19, 2012 | Harman Kardon AVR 85

1 Answer

Describe your Onkyo TX-SR875 7.1 Channels Receiver Problem All right channels are not working. Left channels including center channel speaker is working. Please advise.


Recommend changing your FINAL drive AMP IC most house BOTH right and left channels, your drivers right channel input is good cuz it is used to make the left channel signal

Nov 22, 2009 | Onkyo TX-SR875 Receiver

1 Answer

Onkyo TX-DS 595 receiver surround channel unrealiable


How you power off the amp won't hurt it generally. I used to fix ONKYO amps under warranty, and I can tell you now, it will be full of dry solder joints. Take you unit to your local repairer, and they will resolder all the offending PCB's inside. This type of repair will fix 99% of strange audio noises and cutting in and out etc. for ONKYO recievers. Otherwise this is quite a good product.

Oct 27, 2009 | Onkyo TX-DS595 Receiver

1 Answer

RX-V1 (No left main channel sound)


Sounds like the output stage of the amp is bad. Needs service.

Charlie

Aug 24, 2009 | Yamaha RX-V1 Receiver

1 Answer

STG DR510 no sound on left front channel


Can I assume the calibration procedure also didn't work for the Front left channel? (It's not a "surround" if it's in the front). Switch the receiver to Stereo mode to eliminate any DSP actions. Tune an FM station to eliminate any external device or cable issues. What do you hear from the two Front speakers?

OK? Select a DSP surround mode. Check all modes. What happens?

If the channel goes dead using some or all DSP modes there's probably something wrong with the processor. If they all work...

Isolate the source that exhibits the problem.

It was a bad left channel cable somewhere, wasn't it?

Dec 24, 2008 | Sony STR-DG510 Receiver

3 Answers

How to connect bose 901 speakers to 5.1 setup?


The solution is simple and cheaper than you think.

The analog 5.1, 6.1, 7.1 outputs on your receiver should be active even with digital inputs that you want to hear. Your receiver turns everything it processes into analog output just before the speakers anyway so there's no loss of access to multichannel sound this way.

What I did was to buy a separate amp for the 901's and feed the Front L&R analog audio out to the EQ which is directly in front of the amp. The Active EQ is only for the 901's which don't have woofers or tweeters so Bose flattened out its final response electronically with some serious boosting at both ends. Having it in line with any other speakers would feed them a grossly over-compensated signal.

Your receiver will drive the rest of the speakers.

This is the cheapest way to have your 901's and hear them, too. Since the 901's are really efficient you don't have to buy a big amp that would heat the room. I'm using a separate Carver amp with 2x100w for mine.

Sep 09, 2008 | Bose 901 VI Main / Stereo Speaker

1 Answer

Sound only comes out of left channel, only dvd player works


I would Initialize Unit back to factory settings by turning off main power switch then hold both 6.1/7.1 surround and direct buttons ( they are next to each other near main power switch) in while turning un main power switch. Hold both buttons until you see all lights light up. Then check functions and setup like you bought it new.
Owners manual also explains how to initialize receiver

Feb 09, 2008 | Denon AVR-4800 Receiver

1 Answer

Remote canot find receiver


My guess is that the pulse length or the number of pulses used by QUEST is different from what most remotes use. Call QUEST and you will likely find the answer GOOD LUCK!

Jan 07, 2006 | Samsung SAM1100 LCD Remote Control

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