索爱内部资料:Li-Trouble shooter维修手册

tecsun_2008

Li-Trouble shooter维修手册
Board flash.. 2
1.Enter boot mode first time. 3
2.Measure Current 4
3.Download. 5
4.start and enter TP. 6
5.TP startup Current 6
6.CheckFirmware Revision. 6
7.ADC Level /Pin Level 8
8.Memory Stick Test 8
Baseband.. 9
1.BB Not Read ID Number. 9
2.Radio Diff Temp. 9
3.Backup Capacitor. 9
4.IR Transmitt Current 10
5.VCamera. 10
6.SysconMictoPcbSpeaker. 12
7.PcbMic to Bear. 13
8.Marika To SysconSpeaker. 13
9.SIM Communication. 14
10.USB.. 15
11.Flash Strobe Test   (Cancel) 15
12.Led Driver White LCD Voltage. 16
13.FuelGSleepOn/FuelGSleepOff/Charging. 17
14.BT OUT PUT POWWER.. 18
15.LCD Backlight 18
16. FM... 19
17.Flash led. 19
BT.. 19
1.PowerMeasCh0/Ch39/Ch78. 19
2.GsmRotputPower. 19
3.RTC Accuracy. 19
KRH... 19
1.摄像污点，摄像花屏，摄像白屏，LOAD CAMERA. 19
2. LCD.. 20
3.GSM天线(FTA) 20
4.键盘... 20
5.Vibrator current 20
6.QUICK测试流程：... 20
7.  DPY流程... 21
Abbreviation. 22


【文件名】:08310@52RD_Li-Trouble shooter维修手册.doc
【格　式】:doc
【大　小】:2679K
【简　介】:
【目　录】:

bjohn

2. LCD
检查卡子，看是否虚焊，测量对地阻值，检查与D2000的连接，检查周围小件。检查LCD供电，VDIG,VDDE18,及TP3100(由N2000提供，L3103,V3102,R3104一路供电，3.8V,做LCD命令时有一个跳变。
建议更换X3102, 供电N2000,D2000.
3.GSM天线(FTA)
天线通路为C1001,X1003,C1000,R1002,X1001的通路。
观察X1001,X1002的焊接是否虚焊，移位，或破损。
做发射命令测量发射功率。如都无问题，则为误测。
..........

shiyunjin

顶，谢谢楼主分享！