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Flow Chart of Troubleshooting
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9-24
9-13. PCS Transmitter
TX ON (5Level)
END
Check & Resolder
C108, C207, C208, C201,
C202
And PMU Part and UCP201
PAM100 Pin15
≥
30dBm
Check VBAT or PAM
control signal
Check UCP201
Change or Resolder PAM100
Check ANT Switch
control circuit
Yes
No
No
Yes
Resolder or Change
C121
Check PAM100
VBATT(pin11) OK?
Check PAM100
pin 4 = H
Pin 5 = H
Resolder L113, C110, L114
Yes
Yes
Yes
yes
Yes
No
No
No
Yes
UCP201 pinA1
≥
-4dBm
PAM100 pin2
≥
-4
dBm