I don't know, but I know someone who might, so I'll pass your query on.
Best wishes
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK
On 2018-12-07 14:54, Matthew Wilson wrote:
Hello all, would anyone have, or know of a California Instruments
848TCM or the schematics for one? We're trying to find out what IC
with PCB legend U17 and R21 are on, what we think, is its power supply
board inside (there are three PCBs in the unit), the one in question
is "A1 ASSY 4848-705-1".
It looks like this:
https://accusrc.com/uploads/images/img3782.jpg
Please excuse that this is slightly off-topic but thought I'd try a
long shot with regards the audience here. It is an old (cira 1983)
controller for a California Instruments variable AC power supply we
were hoping to resurrect in order to do an experiment with.
In the unit, unfortunately, U17, an 8 pin IC, and R21 have gone pop in
a catastrophic way - enough to have 'melted' the ident off the IC.
-
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