Marshall ShredMaster repair

h8mtv · Post by **h8mtv** » Mon Sep 17, 2012 11:00 pm

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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HNB · Post by **HNB** » Mon Sep 17, 2012 11:20 pm

Excellent work! I have a clone that I enjoy a lot.

paul_ · Post by **paul_** » Tue Sep 18, 2012 12:11 am

Nicely done!

h8mtv · Post by **h8mtv** » Tue Sep 18, 2012 12:49 pm

Thanks bro, amazing how much less space you can accomplish the same results with.

Post by **Mike** » Tue Sep 18, 2012 12:58 pm

Nice work!

h8mtv · Post by **h8mtv** » Tue Sep 18, 2012 1:18 pm

Thank you Mike, I take that as high praise.

71Smallbox · Post by **71Smallbox** » Tue Sep 18, 2012 2:20 pm

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?

Post by **Mike** » Tue Sep 18, 2012 2:55 pm

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.

71Smallbox · Post by **71Smallbox** » Tue Sep 18, 2012 3:00 pm

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!

h8mtv · Post by **h8mtv** » Tue Sep 18, 2012 5:08 pm

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.