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Sym ptom
FMT does not turn on lamp due to fault
detection
No DC supply to ballast
No Light
No Lamp enable signal
Lamp end of life
Ballast Broken
FMT does not turn on video
DVI cable not connec ted
No
Picture,
Engine power missing
bad
Engine is blanked.
picture
FMT not providing video signal
Engine broken
No power to Shutter
High
Contrast
Unit not
No c ontrol of shutter
W ork ing
FMT does not control shutter
(V28)
Shutter broken
Fan not working. Temp s ensor.
Set Shuts
Filter clogged (V28)
down after
Temp sensor problem
a while
Air path blocked
OPTICAL ENGINE TROUBLESHOOTING
Ca use
W ha t to che ck
Check error code on front pannel. Check problem
indicated.
Check power PW B PL connector for approx. 340VDC.
Check connec tions PL-JE, JE-CN2
Check FMT output Lamplitz FB pin 1. Check
connections FB-FB, CJ3-CJ3
Repace lamp and check
Replace ballast and check
Check diagnostic code. Check circuit indicated.
chec k DVI c onnections
Check connec tions PA2-CN102
Check control connec tions FC-FC, KC-CN3100.
Check FMT Board.
Replace engine and check.
Check 18V from Power board PB pin4. Check
connections PB-PB, KD-CN1
Check connec tions CN5-JG, JG-KD, KD-CN2
Replace FMT and check.
Replace engine.
Check error code and chec k indicated fan or s ensor.
Check filter and clean or replace.
Check error code. Check connections DT-KB, LT-KB.
Check sensor
Check air flow from each engine fan.
4-5
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Table of Contents
Troubleshooting
