Revox A77

Pressure Solenoid Doesn't Function : Check drive control, relay contacts, and diode.
Brake Solenoid Doesn't Function :
Brakes ( STOP ) too weak, too strong, irregular :
38
Check solenoid coil.
Clean core.
Check relay operating voltage I 27 Vdc I.
Check brake bands, check brake lining.
Clean and degrease.
Measure brake tension per 4.3.
1
-,
,
n
n
n
11
n
n
n
11
li
LI
U
U
U
U
LJ
U
LI
U