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Level 3 Repair
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8-26
8-3-9. LCD
LCD is still off after PWR ON
Yes
No
Reconnect the HDC801
Check the connection of
HDC 801
END
No
Resolder or Replace the DCDC(U812)
Yes
Check
DISPLAY_3.3V_LCD=3.3V
(C847, C853),
Yes
Yes
Replace LCD
Module
Yes
Check
VLED_A_21V(C850)
LCD_PWM_IN_1.8V (
R
818)
LCD_PWM_OUT (
R
819)
Resolder or Replace the DCDC(U802)
No
Check
VCC_1.8V_AP=1.8V(C542)
No
Resolder or Replace the PMIC(U500)