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9-2-9. WCDMA Band1 TX
U100 pin11:
about 2~3 dBm?
YES
RFS100,C114,C115
check&change
NO
UCP300
change resolder
NO
U100
pin7 : 2.85 V?
YES
NO
PAM201
BATTERY ,UCP300
pin15: 3.7~4.2 V?
check & change
YES
NO
PAM201
Check UCP300
pin 16 : 2.85V ?
YES
NO
PAM201 pin1
about : -5dBm ?
YES
UCP300
PAM201
check
change or resolder
NO
F203 pin 1
about : -5dBm?
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NO
U100
check & change
9-20
Flow Chart of Troubleshooting
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