I believe there is an issue with excessive current. Please advise if I should open a new thread. For now, this is what I can report.
Using a Kill-A-Watt meter, I see .5 amps when I turn the unit on. The current then slowly rises up to 2 amps at idle and hovers there when the fan kicks into high gear.
The thermistors are mounted at the tail end of the heatsink, at the hottest point.
I see the bias adjust pots, VR101 for channel a, VR201 for channel B. But honestly, I am not sure where to measure the bias current and not sure of the value. I can tell you that CR112 (right across the VR101) has .3 volts across it and the same for CR212/
Using a Kill-A-Watt meter, I see .5 amps when I turn the unit on. The current then slowly rises up to 2 amps at idle and hovers there when the fan kicks into high gear.
The thermistors are mounted at the tail end of the heatsink, at the hottest point.
I see the bias adjust pots, VR101 for channel a, VR201 for channel B. But honestly, I am not sure where to measure the bias current and not sure of the value. I can tell you that CR112 (right across the VR101) has .3 volts across it and the same for CR212/
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