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9-2-9. Abnormal GSM850/EGSM Tx Operation
TX ON(5 level)
F200 PIN2
≥ -5dBm
F200 PIN11
≥ -15dBm
U200 PIN9
≥ -15dBm
U201 PIN55
≥ -15dBm
Check U201,
UCP400
END
④
YES
NO
YES
NO
YES
NO
YES
NO
③
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Resolder RFS200,
L202, C203
Check F200
PIN3=H, PIN4=L
PIN5=L, PIN6=L
YES
Resolder
L204,C215,C216
Resolder U200,
C212, R200,
R202, R203
②
①
9-39
Flow Chart of Troubleshooting
Check Antenna
Switch Control
NO
Resolder or Change
F200
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Table of Contents
Troubleshooting
