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Help! Amplifier Maintenance

68.150.202.143
Posted on September 20, 2009 at 14:39:32
zach.redeker@gmail.com
Audiophile

Posts: 1
Joined: September 20, 2009
 So I have a stereo amp that I have been trying to use to power a couple of bookshelf speakers. Everything works great, except the volume knob is acting really finicky. Most of the time, audio only comes out of one channel. Only when you fiddle with the volume knob (tap, twist, blow on, etc) does the sound come out of both channels.

I'm and getting really annoyed with this and was just wondering how I can fix it. I have no worries about opening it up and can solder stuff well, I just don't know what is causing the problem...

RE: Help! Amplifier Maintenance, posted on September 20, 2009 at 14:53:20
clifff
Audiophile

Posts: 1675
Location: English Riviera
Joined: May 22, 2003
 Crackles when turning the pot are caused by dirt on the carbon track and are amenable to cleaning with a switch-cleaner solvent.

Complete loss of sound indicates that the trach is broken or falling apart.

Cure is to replace the pot. It is probably a dual 10K log, but you will need to check on that. All volume type pots have similar connections, depending on whether it is wired or connects directly to the pcb.

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