26 Feb
2006
26 Feb
'06
11:38 a.m.
A couple of days ago I mentioned I'd discovered a
workaround for Epson
SD320 or SD321 spindle motors that stopped after a few seconds because
the protection circuit was tripping...
Well, one came back to bite me.
isolated track to the nearby 9V supply to the CX065B chip. I took out a
few more components to get to the PCB surface, then really cleaned it up.
And then I was getting over 30M leakage.
Put everything back, and it seems to work....
-tony
You're not only one, I had to do same thing to couple mitsubishi 20"
TVs, these tend to have electrolytic ooze on the board too that is
tripping x-ray shutdown, many small caps are around this area where
these x-ray shutdown transistors are.
Cheers, Wizard