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故障现象:按下放音键,电机不转,如果是有电源指示灯的机子,则指示灯亮度明显变暗或闪烁。检修过程:打开机子后盖,接通电源,按下放音键,电机不转或勉强转动,如果用手帮助让其转一下,还能转几圈,但转速很低,且很快停下来。用烙铁焊掉电机引线,测其直流电阻小于10Ω,正常为20Ω左右。打开电机,发现其中有一组线圈铜丝颜色略有变色,判断为电机线圈过热局部短路所致。故障原因:由于随身听特别费电池,使用者大多都买了带充电装置的一次性电池,或购买了能装两节1
Symptom: Press the play button, the motor does not turn, if there is a power indicator of the machine, the indicator light significantly darken or flashing. Maintenance process: Open the machine back cover, power, press the play button, the motor does not turn or barely turn, if you help it turn around, but also a few laps, but the speed is very low, and quickly stopped. Solder the motor lead with a soldering iron, measure the DC resistance of less than 10Ω, normal about 20Ω. Open the motor and found that there is a group of copper wire color slightly discolored, the motor coil is judged as a result of local short circuit overheating. Cause of the malfunction: Due to the special fee for the portable battery, the user mostly bought the disposable battery with the charging device, or purchased the one that can hold two 1