The problem is that after replacing IC4 it's no longer calibrated and it's failing the test procedure. The voltage on G1/G2 is supposed to swing from 20 to 400 volts but it's actually swinging from 80 to about 460 volts
Can anybody help explain the purpose of pots R24, R23, and how I might want to adjust them to recalibrate the unit properly? It looks like I need to adjust both of these but I don't know how.
-joey
On Tue, Jan 15, 2013 at 10:45 AM, Joey Oravec <joeyoravec@gmail.com> wrote:
Have you scanned the schematics? If so, send a copy (or a link to them) and I'll be glad to look at them and try explaining the purpose of the pots you're asking about. I have a CR31, and had to dig pretty deep into it to repair it, so I became pretty familiar with its schematics & operation. So with the expectation that the CR70 is similar to the CR31, I should be able to follow it pretty well.
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Received on Wed Feb 27 22:27:35 2013
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