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许多维修人员都认为波导C02手机维修比较麻烦,不像其它直板手机那样,加上稳压电源后,用示波器测试几个重要的波形、电压或换同型号IC即可修复。笔者认为:波导C02手机出现“上电模块失败”的故障率较高,这种故障在许多资料上都有较详细的论述,但结合其维修效果,笔者深感不理想,于是在维修过程中总结出一点:波导C02手机的电源IC与西门子3508手机的通用。其电路如附图所示。
Many maintenance personnel think C02 handset maintenance is too much trouble, unlike other candy bar phones, coupled with power supply, with the oscilloscope to test several important waveforms, voltage or the same type of IC can be repaired. I believe: waveguide C02 phone “Failure of the power module ” the failure rate is higher, this failure in many materials have a more detailed discussion, but combined with its maintenance effect, I feel deeply unsatisfactory, so in the maintenance The process concluded: Waveguide C02 cell phone power supply IC and Siemens 3508 phone GM. The circuit shown in the figure.