[comp.sys.mac.hardware] Help for dying 512ke analog board

jcs@physics.phy.duke.edu (John C. Swartz) (04/13/90)

I have a mac128 that over the years has been upgraded (third party)
to a mac plus. The machine retains its original analog board.
I have done extensive preventive maintenance (resoldering the sweep
circuitry joints, installed a fan, etc...) however, my 5 year old
analog board is now making my screen jitter and pinch in and out.
I interpret this as a sign that the whole thing is about to die.

Question: Has anyone seen this behavior and have advice on what to do next?

I believe my flyback tranformer may be about to die (comfirmation?). I'd
lilke to replace it and need a source for the part. Is this something
a good TV repair store may have? The current tranformer is black and 
fits the smaller diameter solder holes on the analog board, and has a label,
	AC-058
	ZICT

Any advice is appreciated; please reply to me by mail and I'll summarize to
net if there is interest.

Thanks in advance,

john swartz


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