Amplifier won't work... Makes a constant humming noise but that's it. Plz help :-/
Possibly the LM3886. (The power amplifier). Not an easy fix, better see a qualified tech.
The power relay must be replaced or checked thats where the humming noise come from.
SOURCE: My amplifier was working great when I unplugged my
old amplifiers usually have capacitors that do not last for long. you may find a few of them leaking out. if u still want to keep the amp change all the leaky capacitors by the right values and u may get it right
SOURCE: when I power up my guitar amplifier if produces a
Fixing the hum: Check that the multiway connector inside (has 8 blue wires) that connect the rear PCB is fitted OK, there have been cases, that it has been pulled out by the cable tie on one end (the earth end) on the main board - fix by cutting the tie and dumping the remains, resite the connector....
It sounds like the switch might be broken. It might need to be replaced.
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