All Source No Picture; Av No Picture - Philips 22PFL5557/V7 Service Manual

NO
Update the
software of U202
Replace Q101
Replace T-CON
board cable

All source no picture

Software of U202
OK?
NO
Check Q101 OK?
NO
Check
T-CON
OK?
Replace U201 or main
board
USB no picture
Check
OK?
replace
the
board
FS301
NO
30

AV no picture

Check circuit
from AV to U201
NO
replace
VGA no picture VGA no picture
Check R512 and R514
NO
replace
HDMI1,HDMI2 no picture
Check Q402 and
Q403 OK?
NO
replace