Lenovo S960 Руководство по эксплуатации - Страница 32

Просмотреть онлайн или скачать pdf Руководство по эксплуатации для Сотовый телефон Lenovo S960. Lenovo S960 37 страниц.
Также для Lenovo S960: Краткое руководство по эксплуатации (6 страниц), Схематические диаграммы (10 страниц)

LENOVO S960 Cellphone Service Manual

4.4 WCDMA comprehensive test

Problem: ACLR or SEM.

Reason: It's not calibrated; or WCDMA PA (U2202, U2203) has a dry joint problem; or RF receiver

and transmitter (U2105) is faulty.

Troubleshooting:

Re-perform WCDMA calibration. Then check

whether the problem is fixed.

Re-solder PA (U2202, U2203) or

replace PA and components in

emission channel. Then check

whether the problem is fixed.

Re-solder or replace the

receiver and transmitter.

Problem: PowerControl

Reason: It's not calibrated; or just passed the critical point of calibration.

Troubleshooting: Re-calibrate.

ACLR or SEM

4.4.2 The

comprehensive test are not good.

Page 32

results

PowerControl