Right channel dropping out (solved)

skootx · 1441

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Offline skootx

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on: March 14, 2017, 07:52:24 AM
I just finished the amp (stock) and it passed all tests. After 15 minutes or so, the right channel drops out and/or sounds very grainy. A light tap on the input/volume knob side of the top plate brings the right channel back, then it drops out again. I've resoldered the input jacks and pot thinking it might be a cold solder but the problem has continued.

Any thoughts on what to check next?
« Last Edit: March 14, 2017, 01:55:30 PM by skootx »


Offline kgoss

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Reply #1 on: March 14, 2017, 08:18:28 AM
The easiest thing to do is reheat all connections in the amp.  I bet you missed soldering one somewhere.  It's either that or a cold joint somewhere.

Ken Goss

Offline skootx

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Reply #2 on: March 14, 2017, 01:19:54 PM
Quote from: kgoss on March 14, 2017, 08:18:28 AM
The easiest thing to do is reheat all connections in the amp.  I bet you missed soldering one somewhere.  It's either that or a cold joint somewhere.

OK, I eventually found what I suspect was a cold solder. Now the right channel stays on, but I get a sound like wind blowing in both channels. I do get music too.


Offline skootx

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Reply #3 on: March 14, 2017, 01:55:19 PM
Never mind. I reflowed all the headphone jack solder points and all is good. Thanks for your help.


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