Need help: DSD-440 with unresponsive formatter/control board
jrw at lolqb.us
Tue Sep 20 13:37:22 CDT 2016
Both green LEDs are on. They're ALL on.
This is a failure of the DC Power Up/Down circuit - See page 3-10 + 3-53/54 in June 83
Service Manual. If the components in this circuit (capacitor) are out of spec, then this may be the cause.
Congrats on picking it up. I was tempted to bid for it as well, but I already filled had my boat anchor quota.
Is the Green LED on?
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