Motorola C168 Podręcznik - Strona 2

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Motorola C168 Podręcznik
INDEX
1. Debug guide ............................................................................................................................. 3
1.1
Baseband circuit Debug guide...................................................................................... 3
1.1.1
Phone is Dead ....................................................................................................... 3
1.1.2
SIM Card Detection Error .................................................................................... 4
1.1.3
Audio Fail ............................................................................................................. 5
1.1.3.1
Headset Fail ..................................................................................................... 5
1.1.3.2
Speaker Fail..................................................................................................... 6
1.1.3.3
Handset Microphone Fail............................................................................... 7
1.1.3.4
Earphone Speaker Fail................................................................................... 8
1.1.4
LCM Fail .............................................................................................................. 8
1.1.5
Charger Fail .......................................................................................................... 9
1.1.6
Vibrator Fail........................................................................................................ 10
1.1.7
FM function Fail ................................................................................................. 10
1.2
Radio Frequency circuit troubleshooting ................................................................... 11
1.2.1
26MHz System clock fail ................................................................................... 11
1.2.2
RF signal diagram in GSM900 Tx mode............................................................ 12
1.2.3
RF signal diagram in DCS1800 TX mode.......................................................... 13
1.2.4
RF signal diagram in GSM900 Rx mode ........................................................... 14
1.2.5
RF signal diagram in DCS1800 RX mode.......................................................... 15
2