U8800 Maintenance Manual Basic Version V1.1 Internal
2011-03-21
Huawei confidential. No spreading without permission. Page 32 of 61
9 Troubleshooting of Common Failures
Before performing the following troubleshooting operations, ensure the software of terminal is in good condition and
restored to default settings.
9.1 Principle Instruction
The U8800 develops basing on MSM7230 IC of Qualcomm. Phone mostly consists of base band module, RF
module and PM module. The MSM7230 IC of base band is divided into RF signal disposal and intelligent interface
connection. The QTR 8600 IC of RF module achieves among terminal and base station communications. The PM8085
IC of power management supports whole power supply of terminal.
To Next Page
Loading...
