Lenovo A516 Service-Handbuch - Seite 3
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Repair Manual of Lenovo A516 Mobile Phone
APPEARANCE .............................................................................................................................. 6
1.
2.
LAYOUT OF MAIN BOARD ........................................................................................................ 6
3.
BASEBAND ................................................................................................................................... 9
3.1
3.1.1
No display on screen after power-on ................................................................................. 10
3.1.2
LCD backlight without lighting ......................................................................................... 11
3.2
3.2.1
Rear camera defects .......................................................................................................... 13
3.2.2
Front camera defects ......................................................................................................... 14
3.3
3.3.1
No vibration ....................................................................................................................... 15
3.3.2
No ring ............................................................................................................................... 16
3.4
.............................................................................................................................. 17
3.4.1 No charging display after plugging the charger in ............................................................ 17
3.4.2 Charging shown but not full charging ................................................................................ 18
3.5
3.5.1 Abnormal operation of side keys ........................................................................................ 19
3.5.2 Abnormal operation of CTP keyboard ............................................................................... 20
3.6
................................................................................................................................. 21
3.6.1 No voice heard from the other side during the call ............................................................ 21
3.6.2 No voice heard from your side during the call ................................................................... 22
3.7
-
3.8
3.9
4.
RADIO FREQUENCY (RF) ........................................................................................................ 25
4.2.1 AFC calibration..................................................................................................................... 27
4.2.2 AGC ....................................................................................................................................... 28
4.2.3 APC ....................................................................................................................................... 29
4.3.1 Switch spectrum & PVT template with excessive standard ................................................... 31
4.3.2 High Frequency Error ........................................................................................................... 32
4.3.3 High Phase Error .................................................................................................................. 32
4.3.4 Power output problems ......................................................................................................... 33
4.4.1 RSSI_Cal ............................................................................................................................... 34
4.4.2 TPC_Cal ................................................................................................................................ 34
4.5.1 ACLR or SEM ........................................................................................................................ 36
Content
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