Lenovo A516 Service Manual page 30

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
N
damaged;
Replace
Vramp
R2111 、
circuit :
R2112、C2111
30