Looking for someone who knows and understands the innards and outards of the
TT Corsair I ALC circuit.
On the Corsair I, I am refurbishing, The ALC controls do not seem to function.
At first I thought it might be a circuit problem with the ALC circuit devices
and replaced all of them. Same issue. The ALC barely lights when you adjust R11
and R15 has no effect at reducing the power. I temporarily put an LED on the
ALC board connector as can get that to dim.brighten with an adjustment of the
panel mounted ALC control but not as it should as that is for very low power
levels as controlled by the Drive control --and the panel LED is really dim.
At low power levels the temporary LED will come on when you key the MIC but
dims on voice peaks which is the reverse of what it should do. I measured the
voltages on all of the devices Q4-Q9 and the values are close to what the TT
manual says they should be -- so nothing there.
Any one have any suggestions or clues on how to fix the ALC. Rather than clog
up the reflector please reply directly to radioguy90@hotmail.com
73's
Pete N6QW
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