Can't Stop Humming

[Ron]

As it happens, I just had a Roland combo come in for repair with the
same problem, humming regardless of whatever was plugged in. It turned
out to be the shorting contacts on the second input socket (overdrive)
tarnished. Of course guitar boy always plugs into the first socket
leaving the overdrive socket open to the elements.


Ron (UK)

Just out of curiosity, were the jacks separately mounted to the chasis
or were they soldered to the PCB like both the input and headphone
jacks in my amplifier are mounted?

Ron

 

[Ron(UK)]

Just out of curiosity, were the jacks separately mounted to the chasis
or were they soldered to the PCB like both the input and headphone
jacks in my amplifier are mounted?

Ron

The input jacks in the Roland were pcb mounted

Ron(UK)