Umts Transmitter - Samsung SGH-Z620 Service Manual

Flow Chart of Troubleshooting and Circuit Diagrams

9-2-8. UMTS Transmitter

Tx ON
RF output : 9750 CH
OUT PWR : 24dBm
CN800 Check
Pin #2,3 ≥ 22dBm ?
D800 Check
Pin #4 ≥ 22dBm ?
DUF700 Check
Pin #11 ≥ 20dBm ?
PAM700 Check
Pin#1,20 ≥ 15dBm ?
F600 check
pin#1,4 ≥ -20dBm ?
U600 check
pin#51 ≥ -20dBm
THE END
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YES
YES
YES
YES
YES
YES
SAMSUNG Proprietary-Contents may change without notice
NO
CN800
Resolder or Change
NO
Resolder or Change
NO
DUF700
Resolder or Change
NO
Resolder or change
NO
F600 Resolder or change
NO
U600 Resolder or change
9- 31
D800
PAM700