MODEL: WD-52527 / WD-52528 / WD-62527 / WD-62528
Page 35
LCD ENGINE INTERNAL LAYOUT
Sym p to m Ca u se Wha t to che ck
FMT does not turn on lamp due to fault
detection Check error code on front pannel. C hec k problem
indicated.
No DC supply to ballas t Check power P W B PL connec tor for approx. 34 0V DC.
Check connec tio ns P L-JE, JE-CN2
No Lamp enable signal Check FMT output Lam plit z F B pin 1. Chec k
connections F B -FB , CJ3-CJ3
Lamp end of life Repace lamp and c hec k
Ballast Brok en Replace ballas t and chec k
FMT does not turn on video Check d iagnos t ic c ode. Chec k c i rcuit indic at ed.
DVI cable not connec ted check DVI connections
Engine power miss in g Check c onnec tions PA2-CN102
Engine is blank ed. Check c ont rol c onnec t ions F C-FC, K C-CN3100.
FMT not providing video signal Check F M T Boa rd.
Engine broken Replace engine and check .
No power to Shutter Check 18V from P ower board P B pin4. Chec k
connections PB-PB, KD-CN1
No control of shutter Check c onnec tions CN5-JG, JG-KD, KD-CN2
FMT does not c ontrol s hut t er Replac e FM T and c hec k .
Shutter broken Replace engine.
Fan not working. Temp s ens or. Check e rror code and c hec k indic at ed fan or sens or.
Filter clogged Check filter and c lean or replac e.
Temp sensor problem Check error code. Chec k connections DT-KB , LT-KB .
Check sens or
Air path block ed Check air flow from each engine fan.
Set Shuts
down after
a while

OPTICAL EN GINE TROUBL ESHOOTING

No Light
No
Picture,
bad
picture
High
Contrast
Unit not
Working