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SAMSUNG Proprietary-Contents may change without notice
SGH-Z510 Flow Chart of Troubleshooting and Circuit Diagrams
2-
28
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2-2-3. PCS Receiver
Rx On
RF Input: 661 CH
Cell Power:-50dBm
RFS800( RF Connector)
Pin #3
≥
-60dBm ?
U800
(Antena Switch Module)
Pin#4
≥
-60dBm ?
YES
F802(DCS Rx Saw )
Pin #3,4
≥
-60dBm ?
U600
(RTR6250 DCSINP,INM)
Pin #24,25
≥
-60dBm ?
Check R103 & R104
(RX IQ signal)
≥
1V
YES
YES
YES
YES
Check UCP100(MSM6250A)
END
Check& Resolder
VDDA of U600
NO
Resolder or Change
RFS800
Resolder or Change
U600
Check C814,L815
Resolder or Change F802
Resolder or Change
U800
U800
Pin#26=L Pin27=H Pin28=L
?
Check Antenna Switch
Control Path
NO
YES
Check& Resolder
R614,R617,C630,C631
NO
NO
NO
Check U600(RTR6250 VDDA)
V_2.85TX,RX,OSC
≒
2.85V ?
YES
NO
Summary of Contents for SGH-Z510
Page 63: ...6 1 6 SGH Z510 Block Diagrams ...
Page 64: ...SGH Z510 Block Diagrams 6 2 ...