Search found 5 matches

by Speedofpunch
12 Jan 2018, 11:46
Forum: Marshall JMD1
Topic: JMD102 Replacing the master volume pot
Replies: 5
Views: 2973

Re: JMD102 Replacing the master volume pot

Thanks again Steve, I dropped the amp off with a local amp tech and am going to have him work on it. I really appreciate you responding but I'm a little nervous to solder on the amp....I love it and would hate to mess it up because I'm not 100% certain what I'm doing!
by Speedofpunch
11 Jan 2018, 11:05
Forum: Marshall JMD1
Topic: JMD102 Replacing the master volume pot
Replies: 5
Views: 2973

Re: JMD102 Replacing the master volume pot

Anitoli and Steve, thank you so much for your quick reply! I really appreciate it. Would something like this work? https://www.ebay.com/itm/2-x-9mm-Alpha- ... XQUmFSoTpw
by Speedofpunch
11 Jan 2018, 07:13
Forum: Marshall JMD1
Topic: JMD102 Replacing the master volume pot
Replies: 5
Views: 2973

JMD102 Replacing the master volume pot

I noticed at band practice last night that the volume of the amp was cutting out. If i touched the master volum knob it would cut out and in depending on if I moved it much. I'm thinking that at some point in transit something may have hit the knob. Is there a specific pot that I should use to repla...
by Speedofpunch
12 May 2017, 17:50
Forum: Marshall JMD1
Topic: JMD 102 Biasing Problem - Tech Help Needed
Replies: 23
Views: 9252

Re: JMD 102 Biasing Problem - Tech Help Needed

Thanks for the reply. I'll explain my situation a little better. A few weeks ago at our rehearsal space I got everything setup and let the amp warm up while I set up my pedals and guitar. When I turned the standby off it sounded great then the sound just died to almost a whisper. My first thought wa...
by Speedofpunch
12 May 2017, 14:15
Forum: Marshall JMD1
Topic: JMD 102 Biasing Problem - Tech Help Needed
Replies: 23
Views: 9252

Re: JMD 102 Biasing Problem - Tech Help Needed

I hope there is still some activity with this old thread but I measured R49 and R48 and they both come out at 1.3 ohms....do they both need to be replaced?

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