04-07-2014, 12:10 PM
FM plays very well indeed on the 440-T and the 220-T. Only it's mono. The MPX boards on both will not kick into stereo, the Stereo Beacon LED will not come on unless grounded. Acked, and agreed, on maintaining originality if possible.
Yeah, tonight I'll install four of those ECG 162s in the 700-T and then continue troubleshooting using my old Pioneer speakers instead of a signal tracer.
Yesterday, I found where the hum starts in the right channel in the 700-T - it occurs at the collector of the first transistor in the chain of two in the left channel of the predriver. I'm at a loss to explain why, though - the caps and transistors are all new.
I know we seem to be jumping around from problem to problem on this receiver (and others) - sorry.
Yeah, tonight I'll install four of those ECG 162s in the 700-T and then continue troubleshooting using my old Pioneer speakers instead of a signal tracer.
Yesterday, I found where the hum starts in the right channel in the 700-T - it occurs at the collector of the first transistor in the chain of two in the left channel of the predriver. I'm at a loss to explain why, though - the caps and transistors are all new.
I know we seem to be jumping around from problem to problem on this receiver (and others) - sorry.
--
Ron Ramirez
Ferdinand IN
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