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Flow Chart of Troubleshooting
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9-17
9-9. GSM850 Receiver
RX ON
Cell Power : -60dBm
PAM100 Pin31
≥
-65dBm
①
Yes
Resolder PAM100, C116, C119,
C121
No
Yes
No
Check PAM100 pin16,
pin17 = L
PAM100 VC1, VC2
≥
-68dBm
Check ANT Switch
control circuit
No
②
Yes
Resolder PAM100
Yes
③
PAM100
pin 13
≥
-70dBm
pin 27
≥
-70dBm
Resolder L117, L120
No
Yes
Check UCP200
END
Содержание GT S3650
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