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SGH-A400 Flow Chart of Troubleshooting and Circuit Diagram
5-2 SGH-A400 Initial
Initial Failure
Check the "Reset_B"
signal at the pin 6 of
U8016 is "High"
Check the pin 10
of U400 is "High"
Check the pin 11 of U400
is "High"
Check the connections and
initialization using Factory
Test Program
Check LCD connector CN601,
and resolder bridge
END
Y
Y
Y
Y
Y
Y
SAMSUNG Proprietary-Contents may change without notice
Check the U100 (IA)
N
Check the U201 (M46)
N
Check the U400 (PMIC)
N
5-2
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