In hopes of narrowing down which section of the board i need to start pulling and checking parts from I did some voltage probing last night. On the LM1203N I should have +12v at pins 1,13,23,28--I had 11.77V.
TP should have did have
6 138 127.6
8 27 24.47
9 15 13.65
10 12 11.78
7 85(?) .23 (this one has got to be wrong)
3 -50 (I measured DC--should this still be AC)
5 -51.1(again measured in DC)
25 5.57
26 126
So I'm thinking I have a power supply problem based on the low B+ Any ideas on how to track it further? I'm going to investigate that TP7 voltage and see what I read wrong on the schematics