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SLEW MOTION DIAGNOSTIC TABLE
A-4
Step
1
This may indicate worn brushes in the Constant Velocity Tach.
Replace brushes or motor/tach assembly.
2
If condition continues, check for a loose belt or loose set screws that
hold pulleys to their shaft. Any mechanical play between the CV motor
and the sprockets will result in irregular motion. Tighten as required.
3
Verify the spring tension of the Upper and Lower Torque Arm
assemblies are equal and at their proper value. An imbalance puts
excessive load on the Constant Velocity system. Readjust if necessary.
(See Section 6.3.)
A-5
Step
1
Verify all power supply voltages to CV 2285 card. Repair connections
or power supply as necessary.
2
Determine problem to be either defective 2285 amplifier card or
defective 2293 CPU/Main Logic card. Repair or replace.
B
Step
Repeat the steps described in A-1 through A-4 of this table, using the
<REV> button to initiate film motion..
CHRISTIE INC. - - 35/70 Service/PM Manual
CHRISTIE INC.
July, 1997
Film does not ramp smoothly to 120 frames per second –
CONDITION 4: Film ramps up to maximum speed, but motion is not smooth.
Film does not ramp smoothly to 120 frames per second –
CONDITION 5: Film ramps up to maximum speed, then ramps down to a stop
with the #6 LED illuminated.
Film does not ramp to 120 frames per second in the reverse
direction in a smooth and linear motion.
Table 7.10: Slew Motion 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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