Samsung GT-B7300B Service Manual page 63

Gsm
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Flow Chart of Troubleshooting
9-22. WCDMA2100 Transmitter
**If you check the tx chain,
Check the not only RF Device but also resistor, inductor and capacitor.
Tx ON
Battery Voltage: 3.8V
(AGC for 23dBm)
Yes
No
Check C133 = 8 dBm ?
Check the U101
Yes
No
Replace F101
Check C194 = 5 dBm?
Yes
No
Check L137 = 26 dBm?
Replace PAM101
Yes
No
Check C131 = 24 dBm ?
Replace DUF100
Yes
No
Check RFS100 or
Check C110 = 23 dBm ?
F100
(the method like GSM)
Yes
The End
9-55
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization

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