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1、用万用表巧修手机功放模块 手机功放模块因本身质量问题或因长时间通话后器件发热,都会造成功放块的损坏。以摩托罗拉9900X型手机为例,当打开手机,按发射键后,耳机中听到交替的高低音,在测量信道的接收场强正常时,可初步判断功放模块已坏。进一步检查,先拆开手机后盖,连接6.5V电源后,再开机进入测试模式,输入#111989#,通
1, with a multimeter clever repair phone amplifier module phone amplifier module due to its own quality problems or due to prolonged call after the device fever, will result in amplifier block damage. To Motorola 9900X-type mobile phone, for example, when the phone is turned on, press the launch button, the headset to hear the alternating bass, the measurement channel receiving field strength is normal, you can initially determine the power amplifier module has been damaged. Further inspection, first open the back cover of the phone, connect the 6.5V power, then boot into the test mode, enter # 111989 #, pass