Lenovo A516 Service-Handbuch - Seite 30

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Repair Manual of Lenovo A516 Mobile Phone

Fault 2:

⚫

Fault: The output power of the mobile phone is too high.

⚫

Cause: The cable isn't well connected in calibration.

⚫

Shooting:

Fault 3:

⚫

Fault: After repeated calibration, the power is still low.

⚫

Cause: Some element patches of PA and surrounding VAPC input are displaced or PA is

damaged.

⚫

Shooting:

After repeated calibration, the

power is still low.

PA（U2102） may be

partially

recalibrate.

Calibration power is too high

Check RF cable and fixtures to

ensure well connection

Reconnect and calibrate

damaged;

Replace

Vramp

R2111 、

circuit :

R2112、C2111