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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-31
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9-2-10. UMTS850 Transmitter
**If you check the tx chain,
Check the not only RF Device but also resistor, inductor and capacitor.
YES
NO
F203 Check
Pin #2
≥
22dBm ?
U201 Check
Pin #2
≥
22dBm ?
PAM201 Check
Pin#8
≥
24dBm ?
F203 Resolder or Change
U201 Resolder or Change
THE END
NO
NO
YES
YES
PAM201 Resolder or change
NO
F201 Resolder or change
U104 Resolder or change
YES
YES
NO
F201 check
pin#1
≥
-10dBm ?
U104 check
pin#46
≥
-10dBm
Tx ON
RF output : 9800 CH
OUT PWR : 22dBm