"Dave" wrote in message
m...
that should be mic jack into the loop socket
my poor spelling again
"Dave" wrote in message
...

"Dave" wrote in message
m...
Hi
i have a sound king skak20ra guitar practice amp
worked fine for ages, but then i plugged a mic jack plug in wrong hole
and all it does is make a fairly loud buzz now.All fuses are ok.
Does anyone have any idea what it could be and if i could repair it
myself, I have fairly limited electronic experience but can solder ok,
pcd looks pretty basic if it was just a case of soldering a new cap or
whatever
hope one of you bright people out there can help

cheers
Dave

Sorry for the poor info jak
What i did was plug a mic kack into the look socket on the back (dont ask
me why) and then when i turned it on again all it did was buzz fairly
loudly. none of the volume knobs or anything else works when i plug the
guitar in just a constant buzz
hope that will help
many thanx jak
Dave




Its possible that the loop skt has a break contact like the headphone skt
disconnects the speaker in a domestic amp. It could be oxide on the contact
causing a poor connection and allowing mains hum instead of the signal
through to the final amp stage. With the amp unplugged - squirt the skt with
switch cleaner (WD-40 might do) and work a plug in/out of the skt, dry off
any excess fluid and try the amp.