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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-23
9-12. GSM900 Transmitter
Yes
Change or Resolder PAM100
Yes
PAM100 Pin15
≥
30dBm
TX ON (5Level)
Check PAM100
pin 8 = H
Pin 10 = L
PAM100 pin4
≥
-4
dBm
Check ANT Switch
control circuit
Yes
No
Yes
No
yes
Resolder L113, C110, L114
Yes
Yes
Check PAM100
VBATT(pin11) OK?
Check UCP201
No
Check VBAT or PAM
control signal
No
UCP201 pinA2
≥
-4dBm
Yes
Resolder or Change
C120, C112, L103
No
Check & Resolder
C108, C207, C208, C201,
C202
And PMU Part and UCP201
END