NAD 6220 Repairs

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MusicMan_ZA

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After the success I had with fixing the 6050, I have decided to tackle the 6220.

I have replaced the belts and cleaned the heads, and done some lubrication.
Tested it with a known good tape, but it only plays on the one channel (Right).
And only the LEDs indicators for the R channel light up during play.
There is no sound from the L channel.

I have cleaned all the switches, particularly the long sliding "record" switch (a number of times).
I have cleaned the trim pots.
I have tested the RCA leads from the RCA plug to the PC board for continuity - OK.
I have cleaned the head again.

I can't see anything obviously wrong.

Any ideas / suggestions regarding next steps?

Much appreciated,
J

 
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