Lenovo i909 유지 관리 매뉴얼 - 페이지 3
{카테고리_이름} Lenovo i909에 대한 유지 관리 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Lenovo i909 32 페이지.
페이지 인쇄
I908 Mobile Phone Maintenance Manual
PHONE EXTERIOR ......................................................................................................................5
1
MAIN BOARD LAYOUT...............................................................................................................7
2
COMPONENT SIDE: ............................................................................................................................7
3
BASEBAND ...................................................................................................................................9
3.1
No display after the phone is turned on.........................................................................9
3.1.1
3.1.2
The LCD backlight does not come on......................................................................10
3.2
The unit does not vibrate ............................................................................................... 11
3.2.1
No ringing sound ..............................................................................................................1
3.2.2
3.3
.............................................................................................................................13
3.3.1
the screen .....................................................................................................................................13
3.3.2
charged .........................................................................................................................................14
3.4
The keypad does not work normally ............................................................................15
3.4.1
3.4.2
The keypad backlight is inactive ...................................................................................16
3.5
3.5.1
The voice of the person on the other end of the line can't be heard .......................17
3.5.2
The person on the other end of the line can't hear my voice ...................................18
3.6
RADIOFREQUENCY (RF).........................................................................................................20
4
4.1
4.2
4.2.1
AFC calibration ................................................................................................................21
4.2.2
Rx path loss........................................................................................................................22
4.2.3
PCL....................................................................................................................................22
4.3
4.3.1
Switch Spectrum and Ramp Mask overrun ...................................................................24
4.3.2
Significant frequency error ................................................................................................25
4.3.3
Significant phase error ......................................................................................................25
4.3.4
Power output problems ..................................................................................................26
5
ASSEMBLY AND DISASSEMBLY OF THE I909...................................................................28
5.1
5.2
5.3
Table of Contents
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V
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Page 3
LENOVO
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909 ............................................................31