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5-4
Step
This indicates worn brushes in the Constant Velocity motor. Replace
brushes or motor.
6-1
Step
1
Replace 2275 card.
2
If problem still exists, replace 2293 card.
6-2
Step
1
The fault could be associated with the tach circuit on the 2293 card.
Replace 2293 card.
2
The brushes associated with the tach on the Pulldown motor assembly
could be worn. Replace brushes or motor assembly.
CHRISTIE INC. - - 35/70 Service/PM Manual
CHRISTIE INC.
July, 1997
READY DIAGNOSTIC TABLE
The Constant Velocity sprocket will not advance film one frame and lock –
CONDITION 4: The constant velocity motor starts to move film, but stops part
way. Motion continues or completes if CV sprocket is restarted with assist by
hand.
The Pulldown System has performed a proper Loop Set, but failed to advance film
and lock. Since a Loop Set was performed in Section 3 of this table, those checks
need not be repeated.
CONDITION 1: Pulldown sprocket offers no resistance to movement by hand.
The Pulldown System has performed a proper Loop Set, but failed to advance film
and lock.
CONDITION 2: Pulldown sprocket is not stable; oscillation produces audible
sound. This is caused by a fault in tach circuit.
Table 7.8: READY Diagnostic Table (Continued)
7 : T r o u b l e s h o o t i n g G u i d e
Diagnostic
Diagnostic
Diagnostic
Result
Result
Result
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