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Marshall ShredMaster repair
Posted: Mon Sep 17, 2012 11:00 pm
by h8mtv
I recently pickup up a ShredMaster from Joey with broken jacks. I didn't know they used some wacky proprietary jacks that are not made anymore. I am pretty sure replacements are going to be impossible or very expensive to find. Anyways, went off road and now she's up an running nicely with switchcraft jacks and a new vero sub board.
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Posted: Mon Sep 17, 2012 11:20 pm
by HNB
Excellent work! I have a clone that I enjoy a lot.
Posted: Tue Sep 18, 2012 12:11 am
by paul_
Nicely done!
Posted: Tue Sep 18, 2012 12:49 pm
by h8mtv
Thanks bro, amazing how much less space you can accomplish the same results with.
Posted: Tue Sep 18, 2012 12:58 pm
by Mike
Nice work!
Posted: Tue Sep 18, 2012 1:18 pm
by h8mtv
Thank you Mike, I take that as high praise.

Posted: Tue Sep 18, 2012 2:20 pm
by 71Smallbox
Nice! The jacks on these suck, I fear mine will break in the immediate future. I also feel like the switch is doomed too. Mike, what would make one of these not work on battery anymore, solely on AC power?
Posted: Tue Sep 18, 2012 2:55 pm
by Mike
Most likely cause is strainon the battery leads which has caused them to break internally = no battery power.
Either that or the DC jack might be a switching type that only enables the battery when a plug is not in, and that part has worn over time and isn't springing back to make contact and allow the battery into the circuit.
Fuck batteries anyway.
Posted: Tue Sep 18, 2012 3:00 pm
by 71Smallbox
Mike wrote:Most likely cause is strainon the battery leads which has caused them to break internally = no battery power.
Either that or the DC jack might be a switching type that only enables the battery when a plug is not in, and that part has worn over time and isn't springing back to make contact and allow the battery into the circuit.
Fuck batteries anyway.
Considering the fact that I already replaced the battey plug, it has to be the DC jack not springing back. Thanks alot man!
Posted: Tue Sep 18, 2012 5:08 pm
by h8mtv
Yep, either the dc jack or a defective input jack. The input jack is switching so if the plug is removed the battery won't drain by disconnecting the battery neg.