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Flow Chart of Troubleshooting
10-16. WCDMA Receiver
RX ON
RF input : 10700CH
Cell Power : -50 dBm
Yes
C107 ≥ -65dBm
Yes
L105 > 2.5V
R103 > 1.5V
R104 < 0.5V
R105 > 1.5V
Yes
C241 ≥ -68dBM
Yes
C251 ≥ -71dBM
Yes
C222 ≥ -74dBM
Yes
C221 ≥ -74dBM
C225 ≥ -74dBM
Yes
U202 PIN
11,12,13,14 ≥
500mV
Yes
Check UCP300
END
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CONTINUOUS RX on
RF input : 10700CH
Cell power : -50dBm
No
Resolder RFS100
No
Check UCP300
No
Resolder F101 or Change F101
No
Resolder F202 or Change F202
No
Check U202
No
Resolder F200 or Change F200
No
Check U202
10-42
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