Philips BDL4785SL/00, Service Manual

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140 BDL4 7 85 S L LCD
Repair Flow Chart
CVB S repe a t output no si g n a l
Check U1 oper a tion nor ma l?
VGA repe a t output no si g n a l
Check U3 oper a tion nor ma l?
DVI picture displ a y a bnor ma l
Check MU 2 9 oper a tion nor ma l?
IR f unction fa il
1. Check c a ble or ch a n g e a nother IR
bo a rd ( IR Bo a rd )
2 . Check MJ 2 , MU 2 ,U14 ,U15, MU45
( IR Connector )
Detect am bient li g ht f unction fa il
Check c a ble or ch a n g e a nother IR bo a rd