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SAMSUNG Proprietary-Contents may change without notice
Level 3 Repair
8-53
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8-3-2-12. WCDMA 1900 Transmitter
RX ON(Call Connected)
DL Channel : 9800 Ch / UL Channel : Auto
Cell Pwr = -50dBm / UE Target Pwr = 24dBm
RFS101 Pin 2
>= 20dBm
Yes
Resolder RFS100,L103,C100,L149
Check RFS100
pin3/4/5/6 = L /L /L /H
,
pin7 =2.7V(C105,107)
Check
R107,109,110,111
and
UCP300,U401
(crack,open,etc)
No
RFS101 Pin 22
>= 20dBm
Yes
No
Resolder or change RFS101
Yes
No
Yes
DUF102
Pin 6 >= 20dBm
Resolder C158.L130,C122
No
DUF102
Pin 3 >= 20dBm
Yes
Resolder or change DUF102
No
PAM102
Pin 9 >= 20dBm
ResolderL129,C130,C145
Yes
No
Check PAM102
VBAT(C152,157) = 3 ~ 4.2V
PA 0N(Pin5) = 0 ~ 0.5V
PA_R1(Pin2) = 0 ~ 0.5V
PAM102
Pin 2 >= 4dBm
Yes
No
Yes
Resolder or change F102
F102
Pin 1 >= 0dBm
No
Yes
Resolder L148,C168
U100
Pin58 or L148 >= 0dBm
No
Check U100 & UCP300
(crack,open,etc)
END