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Author Topic: Right channel dropping out (solved)  (Read 184 times)

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Offline skootx

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Right channel dropping out (solved)
« 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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Re: Right channel dropping out
« 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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Re: Right channel dropping out
« Reply #2 on: March 14, 2017, 01:19:54 pm »
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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Re: Right channel dropping out
« 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.