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Level 3 Repair
8-56
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8-3-2-13. WCDMA 900 Receiver
RX ON(Call Connected)
DL Channel : 3013 Ch
UL Channel : Auto
Cell Pwr = -50dBm
UE Target Pwr = 24dBm
RFS101 Pin 2
>= -55dBm
Resolder RFS100,L103,C100,L149
No
Yes
Check RFS100
pin3 = L, pin4 = H,
,pin5 = L, pin6 = H
,
pin7 =2.7V
(C105,107)
RFS101
Pin 21
>= -60dBm
No
No
Check
R107,109,110,111
and UCP300,U401
(crack,open,etc)
Resolder or change RFS101
Yes
Yes
DUF100
Pin 6
>= -65dBm
No
Resolder C127,L116,C134
Yes
DUF100
Pin 1 or 8
>= -70dBm
Resolder or change DUF102
No
Yes
U100 Pin29, 30
or C140
>= -75dBm
Resolder L146,L144,L145,C140
No
Yes
Check U100 & UCP300
(crack,open,etc)
END