I'm working on a faulty Gallien-Krueger '200Watt' bass amp that has an ICEPower 50ASX2 modular amp fitted.
PSU +- 25V Supplies OK, No audio output due to pin 1 (enable) of connector P102 being LOW and disabling amplifier, (should be +5V when NO connection to it). Nothing appears physically damaged on the board. (Pins 2 & 3 protection outputs of P102 are OK at +5V). Looks like it is fed from IC400.
Very occasionally when switching off the audio input signal will 'burst through' briefly, so I dont think its a 'big problem'.....
Anyone encountered this ...or solved it?!
THANKS
PSU +- 25V Supplies OK, No audio output due to pin 1 (enable) of connector P102 being LOW and disabling amplifier, (should be +5V when NO connection to it). Nothing appears physically damaged on the board. (Pins 2 & 3 protection outputs of P102 are OK at +5V). Looks like it is fed from IC400.
Very occasionally when switching off the audio input signal will 'burst through' briefly, so I dont think its a 'big problem'.....
Anyone encountered this ...or solved it?!
THANKS