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SAMSUNG Proprietary-Contents may change without notice
SGH-E316 Flow Chart of Troubleshooting and Circuit Diagrams
5-
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4. PCS TX
F402 pin 11
about 2~3dBm?
F400 , C421
check&change
F402
pin6=2.8V?
U102
check&change
U404 pin31
about 4~5dBm?
F402 check & change
U404 pin 42,43
=3.7V?
U404 pin 45
=1.2V?
BATTERY
check & change
U404 pin 37
about :
U404 pin 40
=3V?
U102
check
U404
change or resolder
U102
check
U403
pin 8,9,14,30,32
=2.8V?
U102
pin A13,C125
change or resolder
OSC 402
pin1,3=13MHz
U403
pin11,12,13
=3.0V?
U403 pin28
=13MHz
U102
check or change
U403
change or resolder
OSC 402
check or change
U403
change or resolder
YES
NO
YES
NO
YES
NO
NO
YES
NO
YES
YES
YES
NO
NO
NO
YES
YES
NO
NO
YES
NO
YES