Level 3 Repair
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8-22
8-3-9. LCD
LCD is still off after PWR ON
Yes
No
Check the connection of
SLC800
Yes
Check the voltage of L804
= 3.3V
Yes
Check the C812
and High(20V)
Yes
Yes
No
No
Check the Backlight Driver IC(U802)
or Replace the
L802L803,C811,D800,C813,C814
Check the Buck-Booster(U801)
or Replace U801
Reconnect the SLC800
Check the voltage of
C808=3.3V, C809=1.8V
Check or Replace the
LDO (U800),C808,C809,
Check the L800,C801
and High(1.2V)
Check or Replace the LVDS
Transmitter(U803)
END
Replace LCD
Module
No
No
Yes
Yes
No