Question about Marshall MG100HDFX 100-Watt Amplifier Head
It probably is shorted filter capacitor(s) or shorted rectifier(s).
A shorted output tube could do this, but those are unlikely unless unit has been dropped.
Worst case is shorted power transformer.
In any case do NOT replace the fuses and keep trying as further damage could result. Take unit in for repair if you are not skilled in electronics... there are high voltages in this unit that are lethal.
Posted on Aug 07, 2010
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Posted on Jan 02, 2017
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