微型收音机常见的毛病不难排除。只须用一把小十字改刀,旋下机后螺丝钉,小心地打开机盖,再有一把35瓦左右的电烙铁,自己就能排除故障。 例一、收音完全无声或收听短波和调频广播时声音微弱。检修方法:若不是电池已过,当仔细直观检查机内有无导线从焊点上脱落,特别要检查电路板连接在喇叭上的两根导线,电池盒两端正负极连接在电路 Common problems with mini radios are easy to rule out. Just use a small cross to change the knife, unscrew the machine screws, carefully open the lid, then there is a 35-watt electric iron, you can troubleshoot. For example, the sound is completely silenced or the sound is weak when listening to shortwave and FM radio. Maintenance methods: If not the battery has passed, when carefully carefully check the machine wire from the solder off, in particular, to check the circuit board connected to the speaker on the two wires, the battery box at both ends of the positive and negative connected to the circuit