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8. Level 3 Repair
8-4-13. Display
LCD is still off after PWR ON
Yes
No
No
Reconnect the HEA12000
Yes
No
END
Yes
No
Check
VDD_DDI_3P0=3.0V (C12026)
VDD_DDI_1P8=1.8V (C12027 )
VDD_DDR_1P6=1.6V(C12039)
No
Resolder or Replace the PMIC (U12006)
Yes
No
Check
ELVDD 4P6=4.6V (C12001)
ELVSS_-4P4 = -1.4 ~ -5.4V (C12003)
ELAVDD_7P6 = 5.8 ~ 7.9V (C12005)
No
Resolder or Replace the PMIC (U12006)
Yes
No
Replace UB
Check the connection of
HEA12000