The master volume switch/knob doesn't seem to work, i can get a small sound by putting the overdrive and gain on full, but the master volume knob has no effect, can you help please.
I have a gig tonight and will be in the poo if i can't sort this.
for information,it worked fine yesterday and it is nearly brand new.
Cheers
Tony
There are many models of Marshal amps icluding 15Watt types.
First thing to try is to see if headphones have normal volume. If they do, then the headphone jack switch that connects the speaker is LIKELY bad.
If the headphones do not have any volume, LIKELY causes are:
1. Fried output power amp
2. Volume pot is broken or has bad solder joints to the circuit board.
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