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Level 3 Repair
8-4-9. WCDMA Band8 TX
**If you check the tx chain,
Check the not only RF Device but also resistor, inductor and capacitor.
Battery Voltage: 3.8V
Check C123 = 8 dBm ?
Check C124 = 26 dBm?
Check C130 = 24 dBm?
Check U100 PIN20
OUTPUT(RF CONN.)
With HP8960 >= 23dBm?
The End
Tx ON
Yes
Yes
Yes
Yes
Yes
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
TX POWER DAC:120 CODE APPLIED
No
Check the U101
No
Replace PAM101
No
Replace DUF101
No
Replace U100
8-40
CONTINOUS TX ON CONDITION
CH : 3013
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
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