Philips 55PFL5755 Service Manual page 41

NO
Update the
software of U14
Replace Q1
Replace T-CON
board cable
All source no picture
Software of U14
OK?
NO
Check
NO
T-CON
OK?
Replace U12/U13 or main
board
USB no picture
Check
OK?
replace
Check
U201 OK?
the
board
L108
NO
41
AV no picture
Check circuit
from scart to
U201
NO
replace
VGA no picture VGA no picture
Check Q37 and
U29'VCC
NO
replace
HDMI5 no picture
Check Q16 and
U26 OK?
NO
replace
HDMI1-4 no picture
Check U23
OK?
NO
replace