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