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SAMSUNG Proprietary-Contents may change without notice
SGH-Z510 Flow Chart of Troubleshooting and Circuit Diagrams
2-
35
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2-2-7. WCDMA Transmitter
Tx On
RF Input: 9750 CH
Out Power:24dBm
(Tx AGC 400)
RFS800( RF Connector)
Pin #2
≥
20dBm ?
U800(Antenna Switch Module)
Pin#20
≥
20dBm ?
YES
DUF700(Duplexer)
Pin #8
≥
20dBm ?
PAM700(UMTS PAM)
Pin #8
≥
20dBm ?
F700(UMTS Tx Saw)
Pin #3
≥
-2dBm ?
YES
YES
YES
YES
YES
U600(RTR6250)
Pin #51
≥
-2dBm ?
YES
Check C616 & C619
(TX IQ signal)
≥
1V ?
YES
END
Check the path of U600
NO
Check & Resolder
UCP100(MSM6250A)
NO
NO
Resolder or Change
RFS800
Check PAM700 Pin#4 = High ?
Resolder or Change PAM700
Check C703
Resolder or Change
DUF700
Resolder or Change
U800
Check U800
Pin#26,28=HIGH,
#27= LOW ?
Check Antenna Switch Module
Control Path
NO
YES
Check C705,
Resolder or Change
F700
NO
NO
NO
NO
Summary of Contents for SGH-Z510
Page 63: ...6 1 6 SGH Z510 Block Diagrams ...
Page 64: ...SGH Z510 Block Diagrams 6 2 ...