VPI SDS blinking display


I have a TNT reference III turntable from 1999 and the motor suddenly became slow and the SDS could not be adjusted for accurate speed. The motor failed. As it happened before. I replaced the motor with a spare that I purchased for a backup. I reconnected the SDS speed controller and the display blinked off and on.and the up and down speed adjustment and 45 and 33 switch did not function at all. Is the SDS broken? Has any SDS user experienced this malfunction?

don_c55

Showing 1 response by cleeds

You can test whether the motor works by plugging it directly into the wall, where of course you'll be stuck at 33 1/3. The SDS does have a known "failure mode" for which Steve at VAS Audio has a preventative mod. He can probably repair it for you, too.

Have you lubed the motor and platter bearing? They do it require it every so often.