I've got an Egnator Rebel 30 with no sound.
Input sound through EFX return good power amp action so that half is ok.
Input signal Pin2 V1 preamp Signal passed all the way to Poweramp though low volume. Input signal at R8 signal passes to Pweramp low volume.
So one issue is the input jack somehow. Cleaned it no effect.
So I move on the the low voltage aspect.
Pin 1 V1 only getting about 7 volts not nearly enough for amplification So I check the B4+ voltage at R55 because I have not pulled the pcb out yet. C43 side getting a 137 vDC other side of resistor getting roughly 7vDc. The resistor in question is orange black brown indicating a 300ohm resistor.
So something is hinky an will require pulling the pcb for sure.
Pulling board next.
nosaj
Input sound through EFX return good power amp action so that half is ok.
Input signal Pin2 V1 preamp Signal passed all the way to Poweramp though low volume. Input signal at R8 signal passes to Pweramp low volume.
So one issue is the input jack somehow. Cleaned it no effect.
So I move on the the low voltage aspect.
Pin 1 V1 only getting about 7 volts not nearly enough for amplification So I check the B4+ voltage at R55 because I have not pulled the pcb out yet. C43 side getting a 137 vDC other side of resistor getting roughly 7vDc. The resistor in question is orange black brown indicating a 300ohm resistor.
So something is hinky an will require pulling the pcb for sure.
Pulling board next.
nosaj
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