Hi Chris - I've started to check different voltages of 2 of the boards.? I started looking at the Percussion board.?
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At pin 10 with the perc. tab down I get 16 vdc? ? should be 16 vdc? ? ? ? ? ? INPUT VOLTAGE FROM PRESET TABS
At pin 7? ? ? "? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? I get 2.5 vdc? (it should be 14 vdc)? ? ? ? ?INPUT FROM REITERATION TAB
At pin 2? ? ?"? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?I get 14.5 vdc? should be 14.5 vdc? ? ? ? ?TO PERCUSSION KEYING
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On the power amp board:
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#8 = 0 mv should be 800 mv? ? (FROM PIN #3 RECOVERY & NON-VIBRATO 800MV P-P)
#2 = 16 v? should be 15v? ? ? ? ??
#6 = 0 mv should be 500 mv
#19 = 0 v? should be 15v
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So somethings not right ...