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8. Level 3 Repair
8-4-16. Display
LCD is still off after PWR ON
Yes
No
No
Reconnect the SOC7004
END
Yes
No
Check
VDD_LCD_3P0 = 3.0V (C7081)
VDD_LCD_1P8 = 1.8V (C7082)
No
Resolder or Replace the U7002(3.0V)
Resolder or Replace the U7003(1.8V)
Yes
No
Check
ELVDD 4P6 = 4.6V (C7079)
ELVSS_-4P4 = - 4.4 ~ - 1.4V (C7078)
ELAVDD_7P3 = 7.6V (C7080)
No
Resolder or Replace the U7038
Yes
No
Check the connection of
SOC7004
Replace the Display module
Yes
No
Replace the Display con-to-con FPCB
Yes
No
