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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
9-27
9-19. PCS Transmitter
RFS102
pin 16,17,29,
32,36 ≥2.8V
Yes
Resolder RFS102
Check UCP201
END
No
Yes
No
No
No
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
No
Check & Resolder
RFS102, C117,L123,C126
And PMU Part
Check +VBAT or PAM
control signal
Resolder or Change PAM100
Check PAM100
pin 2,3,5,6,8,
Vbatt pin4, OK?
Yes
RFS102 pin 4,5,6,7
≥ 0.2Vp_p
Resolder or Change
L121
Check ANT Switch
control circuit
Change or Resolder F100
PAM100 pin1
≤ -4dBm
PAM100 pin18
≥ 25dBm
F100 pin12
≥ 25dBm
Check F100
pin11 = H (2.6V),
pin10 = L
TX ON (0Level)
Resolder RFS100,RFS101,
R100,L100,L101
F100 Pin19
≥ 25dBm