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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-31
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9-3. WCDMA TX
TX ON
Target
PWR=23dBm
PAM100 PIN8
≥ 10dBm
PAM100 PIN10
≥ 8dBm
Re-solder RFS100,
L101, C102
DUF100 PIN1
≥ 5dBm
CPL100 PIN2
≥ 5dBm
PAM101 PIN8
≥ -15dBm
U101 PIN59
≥ -20dBm
Check U101, UCP300
Check PAM100
PIN28=H, PIN27=L
PIN1=L
END
Re-solder DUF100,
L123, C174
Re-solder or change CPL100,
C196, R123, R124,
R127, R128
Re-solder or Change
PAM101, C197, C121
Re-solder or Change
C104, L115, C178, R119,
F104, L118, C175
Check Antenna
Switch Control
Re-solder or
Change PAM100
YES
YES
YES
YES
YES
YES
YES
Check
TX Module Output
Check
TX Module Input
NO
NO
NO
NO
NO
NO
Check
Duplexer Input
Check
Coupler Input
Check
PAM Input
Check
Transceiver Input