I have an old SC61 that I've used in the shop for some time. Recently,
it's come down with a flashing VDC display and a slight herring-bone
pattern on the trace.
According to the calibrate section in the owners manual,
connector 9A should be -14v, but its reading +24v.

I just called Sencore, they want $36.50 for the schematic !!

Hoping someone's seen this problem or has a print

Thanks
Spark