Samsung gt s7562 Samsung Galaxy S Duos S7562 WCDMA 3G Network Band1 (2100) Tx not Working solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 WCDMA 3G Network Band1 (2100) Tx not Working solution 

8888888888 Samsung gt s7562 Samsung Galaxy S Duos S7562 WCDMA 3G Network Band1 (2100) Tx not Working solution Root ^(http://appmarsh.com/)
Samsung gt s7562 Samsung Galaxy S Duos S7562 WCDMA 3G Network Band1 (2100) Tx not Working solution Step Via Step
Stable TX ON
(objective power 24 dBm)

CONTINOUS TX ON CONDITION
TX POWER DAC:14500 CODE
APPLIED
WCDMA Band1 CH : 9750
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB

Step 1

Examine Output power of RFS100
20dBm ?

Check Necessary ant. touch & L131,
C122, L103, L107
Step 2

Examine Output power at
L101, L100, L132 20dBm ?

Read about the Ant.
switching diagram of U100
TP_ANT_SEL
Read about GPIO control (UCP300)
Resolder or Amendment U100
Step three
Read about L123
17dBm ?

Resolder or Amendment F100, L123
Step 4

Check L103
5dBm ?

Resolder or Amendment PAM100, L103
Step5

Read about U100
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