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IMAGE QUALITY DIAGNOSTIC TABLE
2
Step
1
Verify that both the fixed and movable sections of gate area are free of
emulsion buildup. Clean if necessary.
2
Verify there is proper spring tension on the movable portion of the gate.
Adjust if necessary. (See Section 6.8)
3
Verify proper right/left adjustment of pulldown sensor by following
procedure in calibration section. Adjust if necessary. (See Section
6.5.)
4
It is possible for a Pulldown amplifier to have defective output
transistors and function in all modes except Pulldown. Replace 2275
card.
5
It is possible for one of the fuses associated with the Pulldown system
to appear good, but have too high a resistance to do a proper Pulldown.
Replace fuses 1 and 3.
6
Verify the edge guides are adjusted properly and do not interfere with
the film path. Adjust if necessary. (See Section 6.8.4.)
7
Verify the Pulldown sprocket is properly aligned to the gate. Realign if
necessary. (See Section 6.8.1.)
8
Verify that the inner and outer race of the pulldown sprocket are not
damaged and have less than 0.001" run-out. Realign or replace
sprocket as necessary.
CHRISTIE INC. - - 35/70 Service/PM Manual
CHRISTIE INC.
July, 1997
Poor Image Quality –
CONDITION 2: Projected picture has vertical jitter in excess of 0.15%.
Table 7.14: Image Quality 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
Result
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