Question about Audio Players & Recorders

1 Answer

B&K AVP2000 left channel not working

Left channel stopped working. I did the usual switching interconnect cables to determine was the preamp and not the power amps, nor source. Is there a troubleshooting procedure to find the cause of this problem? Thanks, Timo

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Audio Player... Master
  • 5,017 Answers

Yes amps buzz when something gets near them - say a pen or probe and if you know what it is safe to touch a finger! Fortunatly for you the left channel is the same as the right. So if you believe it's the pre-amp work backwards from the where the power amp connects to the pre-amp, going through the pre-amp stage by stage - prodding the parts. Remember a buzz in the right a buzz in the left! No buzz in the left but one in the right fault found!
Ignore the power supply it's nothing to do with that as it's common to both channels.

Posted on Dec 30, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Duncan
  • 218 Answers

SOURCE: Rotel RA 9808X Amplifier

I'd suspect that one of the two output transistors on that channel has gone bad. If you are unsure how to test or troubleshoot this, then you might try replace both the NPN and PNP outputs and catch the bad one that way. If your amp uses an output module then you would of course have to replace the module which would replace all the output transistors on both channels. Good luck. Another thing to look out for, is the emitter bias resistors. They are the large white ceramic ones near the outputs. Sometimes one of those will open up too. They will be of a very small resistance value like .5 ohms (point five ohms) or something in that general ballpark, and have a wattage value of typicaly 5 watts. So they are pretty big resistors. Be sure to check them all even if you do find a bad output transistor. They will often go out with the transistor. Good luck.

Posted on Jan 18, 2007

Ron-C
  • 5 Answers

SOURCE: standby power switch

If you are concerned about humidity and switches, spray them with DeOxit. You can get it at Radio Shack.

Posted on Jul 14, 2007

mrwtech
  • 59 Answers

SOURCE: How do I connect a Polkaudio powered subwoofer (psw 125)

Connect a set of stereo RCA cables from the 'Output 2' on the Hafler to the line imputs on the Sub.Turn on the '1+2' output switch on the Hafler and rock out!

Posted on Dec 17, 2008

Grubhead
  • 5017 Answers

SOURCE: Bryston 4b amp, left channel blows the back panel

I would check out whatever drives the left channel first. If it is a transistor, you can put a ohm meter on the terminals and see if it shows a short (amp turned off). If there are two transistors for the left channel, and you find a short on one only, replace the other to be on the safe side.

Posted on Mar 25, 2009

  • 231 Answers

SOURCE: Cambridge A5 Amp, only one speaker works when phono selected

If both speakers work okay on other inputs .Then cable from pre-amp to amp and main amp are okay. If phone RCA jacks go directly to electronics board .Then its possible solder on phono jacks need to be resoldered or other connections in that section.If unit needs repair you can also purchase a phono preamp from radioshack hook up your and use it on other good inputs such as CD etc..Please note PHONO inputs are only for turntables .If a non turntable input such as CD,TAPE,TV Etc is used on PHONE .Then you will overdrive this input .

Posted on Jul 21, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Rotel RTC-850 Preamp left channel is silent. After some interconnect swapping, I determined I have a problem with my Rotel preamp. When I play my CD input into the LEFT channel i get the...


Before we throw in the towel, turn it off and exercise every control a lot of times throughout its range, particularly the Tape Selectors. Sometimes oxides will develop on seldom used controls and their 'normally closed' contacts will not pass a signal.

Dec 25, 2010 | Rotel Audio Players & Recorders

1 Answer

I have a Yamaha AX-900 Integrated Amp that I puchased back in the late 80's. It still works great, with one exception. The left channel is not as loud as the right channel and I have to put the balance...


Hi...
The tone control circuit has "issues". Could be a bad interconnect or a failed pre-amp chip.
If you dont mind putting about $100 into it, get it looked at

Sep 30, 2010 | Yamaha P-1600 Amplifier

1 Answer

Channels out of balance - remote will only change left channel.


switch input cables and try this will confirm if the amp has a problem or the input signal

Jun 19, 2010 | Krell KAV400Xi Amplifier

1 Answer

Yamaha m70 amp and c70 pre-amp right speaker stopped working


First, lets's determine if it's the amp or the preamp...

Swap the Left and Right channel cables between preamp and the amp with each other.

Did it stay on the right? = amp problem.

Now on the left? Preamp or source.

Plug any Line Level device (CD?) directly into the amp inputs. Work now? Preamp problem.

ALL sources? Preamp - toggle all controls, especially a Tape Monitor to possibly wipe of any built-up oxides in them.

May 31, 2010 | Audio Players & Recorders

1 Answer

How do I connect a Polkaudio powered subwoofer (psw 125)


Connect a set of stereo RCA cables from the 'Output 2' on the Hafler to the line imputs on the Sub.Turn on the '1+2' output switch on the Hafler and rock out!

Dec 16, 2008 | Marantz PM7200 2-Channel Amplifier

1 Answer

Lots of hum from both speakers


Well folks I solved my problem and the amp has never sounded better. It had always hummed and now it close to stone quiet. The secret was it really never a problem with the amp. The problem was the result of either the pre-amp, interconnect cables, or the combinations of them. The solution came when I added a "drain wire" or ground to the cable I was using. There must have been a ground loop or some in-balance that required a wire to be connected to the earth (-) side at the source on the interconnect and then left unconnected at the other or receiving end of the interconnect. Anyway, no more hum, and the solution took some spare wire and solder.

Nov 17, 2008 | Adcom GFA-5503 3-Channel Amplifier

1 Answer

Optronica amp one channel out.


disconnect any input cable and test-----------if you still have a problem connect your right speakers cables(which supposed to be good)instead of left speakers cable and test------ if the problem solved you will have a problem in left side(cables or speaker)-------if not solved you will have a problem in your amp it self. and needs hardware repair.

Jul 31, 2008 | Audio Players & Recorders

1 Answer

Problem with philips Powerhouse AW626 music System


try to invert your speakers cables and connect your right speaker cable to left output if the problem still happened you will have a problem in your amp and ask for help from good service center near you-------if the problem disappear you will have a problem in left channel----cable or speaker.

Jun 03, 2008 | Audio Players & Recorders

1 Answer

No sound comes out of the left pre outs


It sounds like the preamp wire that carries the left channel signal between the HU and the 2ch amp has an issue. Here's two quick things to check.
  1. Check that both ends of the left preamp cable between the deck and 2ch amp is not loose or disconnected.
  2. Swap the left and right preamp connections at the amp. If the issue stays with the left channel, the issue is with the amp. If the issue moves to the right channel, the issue is with the preamp cable or the HU's preamp output.
Let me know what you find out!

Mar 13, 2008 | JVC KW-AVX800 CD Player

2 Answers

Pop in left channel


Hi i don´t speak a good Englis but i think what you have a problem whit a filter in the preamplifier, just in the final amplification block, open it end check for any spill o exploded filter

Dec 03, 2006 | NAD T163 Amplifier

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

60 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

kakima

Level 3 Expert

102366 Answers

 Grubhead
Grubhead

Level 3 Expert

5011 Answers

The Knight
The Knight

Level 3 Expert

73619 Answers

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

Answer questions

Manuals & User Guides

Loading...