Lenovo A859 Service Manual - Page 33
Browse online or download pdf Service Manual for Cell Phone Lenovo A859. Lenovo A859 36 pages.
Also for Lenovo A859: Important Product Information Manual (23 pages), Quick Start Manual (6 pages), Quick Start Manual (13 pages), Quick Start Manual (33 pages)
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Repair Manual of Lenovo S920 Mobile Phone
4.5 WCDMA comprehensive test
4.5.1 ACLR or SEM
Fault: ACLR or SEM
Cause: No calibration or WCDMA PA （U2202） is in cold solder joint; RF transceiver (U2101)
doesn't work well.
Repair manner:
ACLR or SEM
Whether it is OK after recalibrating WCDMA?
Re-weld PA or replace PA and the devices in
transmission circuit?
Re-weld
or
transceiver
4.5.2 ILPC comprehensive test abnormal
Fault: ILPC
Cause: No calibration or just passing calibration.
Repair manner: The same as 4.5.1.
4.5.3 FrequencyErr
Fault: FrequencyErr
Cause: No calibration, or suffered outside interference
Repair manner: Recalibrate WCDMA and test; replace U2104.
N
N
replace
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带格式的: 英语(美国)