Murder on the left output street

  • Thread starter Thread starter Rodrev
  • Start date Start date
Rodrev

Rodrev

A red red fox
Hi!

Im first time poster, and must praise this forum to its full.

My question is not directly connected to this forum, and might fit better in another category. But after seeing what great competance that you users have, I give it a shot. Feel free to ignore this thread if you regard it as off-topic for this forum.

Im looking for web pages that can help me find the fault in a vivanco dj mixer. (MX-700) The left channel is dead on the recording and amplifier output, but not on the headset output.

I know its not something to put alot of work into, as its not an especially good mixer. But my funds are limited, and Im quite keen on learning more on such repairs. In addition, I have a swell plan for including it in my homestudio as talkback and monitor mixer :)

So.. Any links or tips on where to start?


Rødrev
 
Rodrev said:
Hi!

Im first time poster, and must praise this forum to its full.

My question is not directly connected to this forum, and might fit better in another category. But after seeing what great competance that you users have, I give it a shot. Feel free to ignore this thread if you regard it as off-topic for this forum.

Im looking for web pages that can help me find the fault in a vivanco dj mixer. (MX-700) The left channel is dead on the recording and amplifier output, but not on the headset output.

I know its not something to put alot of work into, as its not an especially good mixer. But my funds are limited, and Im quite keen on learning more on such repairs. In addition, I have a swell plan for including it in my homestudio as talkback and monitor mixer :)

So.. Any links or tips on where to start?


Rødrev
Click to expand...

Well, start looking at every single solder connection on every single component in that channel. ICs,transistors and connectors are especially vulnerable. If none found, start at the output, with schematic in hand (or a good idea what components are in the bad output chain), and probe your way through with a voltmeter or better yet, an oscilloscope.

You will find the bad part quickly.
 
Thanks!

Thanks for responding! :)

Ill try that out tonight. I found service manual for sale on a web page, but I guess I might as well buy a new mixer. :)

The learning curve is most important for me now, so thank you for showing me a good approach to the problem.

Baard
 
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