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Troubleshooting occasional popping from solid state amp?

Hello all,I have this problem with amp making single pops occasionally, around once every 5-20 minutes. It could be due to cold solder joint so I would like to check it myself since I have some experience with working on guitar amps, before taking it to a pro for repair. The amp is 20 years old.

Any advice on how to check this in the quickest way possible?
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Showing 3 responses by noromance

noromance's avatar
noromance
10,085 posts
 
It may not be grounded or not have a class x suppressor cap across the line. Fitting one may help.
noromance's avatar
noromance
10,085 posts
 
Yes. Could be a bad connection on the pot. Replace the pot - or, try contact cleaner spray if you're happy it's not a bad joint.
noromance's avatar
noromance
10,085 posts
 
Open up amp on bench. Connect to small test speaker. Power up. Use insulator like thin dry wooden rod to push on board and connections until faulty joint is found. Use freezer spray too. Look for leaky electrolytic capacitors. Consider replacing them.
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