https://guitarnoise.forum/guitar-repair-and-maintenance/guitar-amp-problem-2/ Guitar Noise Discussion Board en-US Thu, 04 Jun 2026 18:57:18 +0000 wpForo 60 https://guitarnoise.forum/guitar-repair-and-maintenance/guitar-amp-problem-2/#post-364069 Sat, 26 Feb 2011 13:55:08 +0000 Guitar Repair and Maintenance 493dart https://guitarnoise.forum/guitar-repair-and-maintenance/guitar-amp-problem-2/#post-364069 https://guitarnoise.forum/guitar-repair-and-maintenance/guitar-amp-problem-2/#post-362606 Tue, 18 Jan 2011 19:34:07 +0000 Guitar Repair and Maintenance WillC9999 https://guitarnoise.forum/guitar-repair-and-maintenance/guitar-amp-problem-2/#post-362606 https://guitarnoise.forum/guitar-repair-and-maintenance/guitar-amp-problem-2/#post-362586 Mon, 17 Jan 2011 22:47:43 +0000 If not, are you handy with a soldering iron?

If it was mine, I would replace the 2 jacks with separate jacks (of better quality), and solder them to the circuit board with flexible wire.
I'll bet the existing jacks are mostly plastic, with only the bare minimum of metal in them.

I suspect the 2-in-one jack is available from some parts supplier somewhere, but I'd guess that you might have a similar problem again at some point in the future.]]> Guitar Repair and Maintenance kent_eh https://guitarnoise.forum/guitar-repair-and-maintenance/guitar-amp-problem-2/#post-362586 https://guitarnoise.forum/guitar-repair-and-maintenance/guitar-amp-problem-2/#post-40601 Mon, 17 Jan 2011 15:49:26 +0000 I recently bought a Marshall MG15 DFX amp. I worked fine until I started using headphones with it. When I removed the headphone jack - no sound from the amp speaker. I assumed the amp was bust so checked all the other possibilities (guitar, leads etc). I tried the headphones again and they worked fine, although I had to 'twiddle' the jack a little to achieve a stero signal. When I removed the headphone jack again, no speaker sound. Until that was I shoved a jack into the 'CD In' socket (immediately above the headphone out socket), then the speaker started working.
So, I think I have a dicky headphone cut-out mechanism - does this make sense to those in the know? I had a quick look at the internal electronics and the headphone and CD In sockets are a single component, which I guess might explain why a problem with one might screw up the other.
Any ideas for a repair? Can I get the dual socket component replaced?
Any suggestions gratefully received - my attempt at Sultans of Swing hangs in the balance :-)
Cheers
Will]]> Guitar Repair and Maintenance WillC9999 https://guitarnoise.forum/guitar-repair-and-maintenance/guitar-amp-problem-2/#post-40601