Tom,
I have the correct manual and measured DC voltages with 115.0 VAC line input through my Variac.
Here are the DC voltages I measured:
TP 4338 +55V, tolerance +54.62 to +55.39 Reading: +56.94
TP 4339 +15V, tolerance +14.75 to -15.26 Reading: +15.49
TP 4337 +5V, tolerance +4.92 to +5.09 Reading: +5.172
TP 4439 -8V, tolerance -7.86 to -8.14 Reading: -8.27
TP 4340 +110V tolerance +106.7 to +113.3 Reading: +113.5
It looks like all the readings are just outside of the acceptable range. I took the readings several times over a few minute span, and they were the same.
I'm not sure how to measure ripple without another scope. Is there a way with a DMM (Fluke 117)?
I'm assuming I took the measurements in the right place. I was expecting the TPs to be marked with the TP# (e.g. TP4338), but they were only marked with the voltage.
These were all together on the main board on the bottom of the unit.
I also shot some Deoxit into the position switch to see if that would help, but it did not seem to make a difference.
What next?
