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Flow Chart of Troubleshooting
10-42
10-16. WCDMA Receiver
CONTINUOUS RX on
RF input : 10700CH
Cell power : -50dBm
RX ON
RF input : 10700CH
Cell Power : -50 dBm
Yes
No
Resolder RFS100
C107
≥
-65dBm
L105 > 2.5V
R103 > 1.5V
R104 < 0.5V
R105 > 1.5V
Yes
Check UCP300
No
Yes
C241
≥
-68dBM
Resolder F101 or Change F101
No
Yes
U202 PIN
11,12,13,14
≥
500mV
No
Yes
Check UCP300
END
C251
≥
-71dBM
No
Resolder F202 or Change F202
Yes
Yes
C222
≥
-74dBM
No
Check U202
C221
≥
-74dBM
C225
≥
-74dBM
Yes
No
Resolder F200 or Change F200
Check U202
Содержание SGH-L770V
Страница 74: ...8 Block Diagrams 8 1 8 1 RF Block Diagram ...
Страница 75: ...9 PCB Diagrams 9 1 1 Main top ...
Страница 76: ...PCB Diagrams 9 2 2 Main bottom ...
Страница 93: ...www s manuals com ...