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2-2.RF
2-2-1. GSM Receiver
Rx On
RF Input: 62 CH
Cell Power:-50dBm
YES
RFS800( RF Connector)
Pin #3 ≥-60dBm ?
YES
U800
(Antena Switch Module)
Pin#2 ≥-60dBm ?
YES
F800(GSM Rx Saw)
Pin #3,4 ≥-60dBm ?
YES
U600
(RTR6250 EGSM INP,INM)
Pin #37,38 ≥-60dBm ?
YES
Check R103 & R104
(RX IQ signal)≥1V
NO
Check UCP100(MSM6250A)
END
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SGH-Z510 Flow Chart of Troubleshooting and Circuit Diagrams
Resolder or Change
NO
NO
NO
Resolder or Change F801
NO
Check & Resolder
L803,L804,L805
YES
V_2.85RX,TX,OSC ≒ 2.85V ?
SAMSUNG Proprietary-Contents may change without notice
RFS800
YES
Resolder or Change
U801
Pin#26=L Pin27
=L Pin28=L?
Check Antenna Switch Module
NO
Check C810,L806
YES
Check& Resolder
C631,C630,R614,R617
Check the VDDA ,
VDDM of U600(RTR6250 )
V_2.6P ≒ 2.6V?
Resolder or Change
NO
2-26
U801
Control Path
U600(RTR6250)
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