FP 25/30/38/50/75 E
Troubleshooting
Issue: 06/2011
69
5 .6 .4 Analog Sound
Error
Cause
Solution
No sound / some
channels missing
- sound processor failure
- amplifier failure
- speaker failure
- check plugs and power; call service
- check if sound track is threaded on the
correct side
- check / replace exciter lamp (standard
sound) or red LEDs (rev. scan sound)
- check all equipment for blown
fuses / tripped circuit breakers
Sound out of sync
with picture
- lower loop wrong size
- wrong threading path
- thread correctly
- thread correctly
Loss of high fre-
quencies
- dirty sound optics
- sound optics focused poorly
- clean with lens cleaner and Q-tip
- adjust sound optics’ focus (service)
Garbled sound
- scanning drum jammed
- sound pressure roller loose
- remove blockage; change or oil
bearings
- adjust tension (service)
Hissing sounds
- scratches on sound track
- dirt on sound track
- defective sound electronics
- replace print
- clean
- troubleshoot and replace (service)
5 .6 .5 Digital Sound
Error
Cause
Solution
No sound
- check the following [also see
the “no sound / some
channels missing” section of
“Analog Sound”, above.]
- film is encoded for digital playback
- digital sound processor is on
- processor is switched to the correct
mode
- disk is loaded correctly and the
right disk is in place [DTS only]
- film is threaded correctly
Sound out of sync
with picture
- loops wrong size
- wrong threading path
- thread correctly
- thread correctly
Poor digital sound - improper tension
- dirt on lens
- dirt on digital sound track
- scratches on digital track
- re-thread
- remove dust using compressed air
- clean digital soundtrack
- replace print
X
NOTE
If there are any serious other problems please call local service.
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