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Level 3 Repair
8-36
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8-3-2-5. DCS Receiver
RX ON(Call Connected)
TCH Channel : 698 Ch
BCH PWR = -50dBm
Resolder or change C119,C120,L114
Check U100 & UCP300
(crack,open,etc)
RFS101 Pin 2
>= -60dBm
Check RFS100
pin3 = L ,
pin4 = L,
pin5 = L,
pin6 = L,
Yes
No
Resolder or change RFS101
Yes
RFS101
Pin 16,17
>= -70dBm
U100
Pin 46,47
>= -75dBm
No
Yes
Resolder RFS100,L103,C100,L149
Check
R107,109,110,111
and UCP300
(crack,open,etc)
No
No
Yes
END
RFS101 Pin7
=2.7V
(C105,107)
Yes
Check PMIC(U401)
circuit(crack,open,etc)
No