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The famous middle gear for the sled motor is sitting on the brass pin which turned bad over the years. This gear must be removed (use scalpel blade to pop up the washer keeping it in place) and cleaned, brass pin polished and oiled.
Over the last 5 weeks I restored three D-90 (same as D-99 for our purposes) and 50% of SMD caps were dead, all caps for the power supply were 20-40% lower than stated.
Surprisingly, three out of three C408 caps were dead (220uF, 4V) |
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