Lenovo P70-A Servicehandleiding - Pagina 3
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Repair Manual of Lenovo P70-A Mobile Phone
1. Appearance ............................................................................................................................. 5
2. Layout of main board ............................................................................................................. 6
3. Baseband ................................................................................................................................. 7
4. Main adverse analysis ............................................................................................................... 8
4.1
4.1.1 No display on screen after power-on ................................................................................... 8
4.1.2 LCD backlight without lighting ........................................................................................... 9
4.2
4.2.1 Rear camera defects .......................................................................................................... 10
4.3
4.3.1 No vibration ....................................................................................................................... 11
4.3.2 No ring ............................................................................................................................... 12
4.4
.............................................................................................................................. 13
4.4.1 No charging display after plugging the charger in ............................................................ 13
4.4.2 Charging shown but not full charging ............................................................................... 14
4.5
4.5.1 Abnormal operation of side keys ....................................................................................... 15
4.5.2 Abnormal operation of CTP keyboard ............................................................................... 16
4.6
................................................................................................................................. 17
4.6.1 No voice heard from the other side during the call ............................................................ 17
4.6.2 No voice heard from your side during the call ................................................................... 18
4.7
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4.8
4.9
4.10
4.11
4.11.1
AFC calibration ............................................................................................................. 22
4.11.2
AGC ............................................................................................................................... 23
4.11.3
APC ............................................................................................................................... 24
4.12
4.12.1
Switch spectrum & PVT template with excessive standard ........................................... 26
4.12.2
High Frequency Error ................................................................................................... 27
4.12.3
High Phase Error .......................................................................................................... 27
4.12.4
Power output problems .................................................................................................. 28
4.13
4.13.1
RSSI _Cal ...................................................................................................................... 29
4.13.2
TPC _ Cal ...................................................................................................................... 29
4.14
4.14.1
ACLR or SEM ................................................................................................................ 31
4.14.2
ILPC comprehensive test abnormal ............................................................................... 31
Content
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(RF) ......................................................................................................... 21
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