Moog Satellite - Page 26

SYMPTOMS
PROBABLE CAUSE
CORRECTION
Key down comparator
1. Check input of IC5 for
not switching (IC5)
chance
2.
Check R65, R67
3. Replace IC5
One shot not firing
1. Replace 06, 07
2.
Check C7, C6 CR7 CR9, CR10
3 .
Check R68, R69, R70, R71
DC gate not working
1. Replace 07, 08
2.
Check CR8, C12. R73, R72
R83, R71
10. No 10 milli¬
One shot time not
1 .
Replace C6
second delay
right
2.
Replace 05 06
3. Check R71, R69, R70
11. No higher note
‘.AC keydown detector
1.
Replace IC6
trigger
2.
Check CR9, CR10
3 .
Check R66, CIO Cll, R76
R74, R75, C8C9, R192,
R17, R78
One shot or DC gate
1. See No Trig section
12. No pitch voltage
Sample 6 hold circuit
1. Check at A7
, change
not sampling
2.
Check CRl, R61, Cl3
3. Replace 050, 04
4 .
Check P.62
5 .
Replace 03
6.
Check P.64, R58, R59
7 .
Replace IC10, 051
8 .
Check C5 R54- C37. R57,
R55, R56, R60
•
9 .
Replace IC3
Open glide circuit
1.
Check Glide switch
2.
Check Glide pot
Defective isola¬
1.
Replace IC9, Q2
tion amplifier 2.
Check C4, R52, R49 r R50
C36, R51
13. Pitch Voltage
Keyboard
1 . Check for ground on keyboards
goes backwards
2 .
Check keyboard current source