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In Reply to: RE: Linn LP 12 problem posted by docw on July 19, 2014 at 11:39:44
Sounds like you have a Valhalla power supply.
Get the schematic and check voltages on the board. See what voltages you are getting to the motor.
If the voltages are right, probably the motor.
If not, something on the board. Electrolytics could be a likely culprit.
With the Valhalla board plugged in there is power going through it all the time, regardless of whether you have the unit on or off.
Replacement motors are available and it is possible to repair/revise the Valhalla boards.
David
Follow Ups:
...it was not introduced till the 80s.
'77 spec. Sondek would have been fitted with a Basik PS.
I thought it might be the original supply, but the poster said the diode came on, and the original supply was an illuminated red rocker, not the diode, but whatever, he can let us know.
David
Actually, the original supply had an illuminated red press-switch.
Regards,
Andy
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