Table of Contents
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U9500 Maintenance Guide
Figure 9-71 Components that might be damaged
U4802 Transceiver power supply
chip
Handling Process
Figure 9-72 shows the process for handling the GSM RF transmission failure.
Issue 1.2 (2012-6-30)
U4708 RF clock (26M）
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
U4701 Dual mode RF transceiver
chip
9 Troubleshooting
U4702 RF
U4704 RF PA
U4801 RF PA power supply chip
J4710 RF coaxial connector
U4703 RF switch
91
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Table of Contents
Troubleshooting
