1. The speaker wiring is broken or the crossover is abnormal. After the wiring of the Discount TG152 in china is broken, the speaker unit has no excitation voltage, which will cause a silent failure. The frequency divider is generally not easy to break, but the lead joints are de-soldered, the frequency dividing capacitor is short-circuited and other faults may occur.2. Broken voice coil. You can use a professional measuring instrument to detect the voice coil of Discount TG152. If the lead wire of the voice coil is broken, you can solder the wire end well, and then use another piece of enameled wire similar to the voice coil winding to solder it properly. If the wire inside the voice coil is damaged, it should be replaced in time.
3. Speaker lead is broken. Due to the frequent vibration of the paper cone of Discount TG152 in china, the braided wire is easy to break, and sometimes the wire is broken, but the cotton core wire remains connected. This braided wire is not readily available and can be replaced with a slightly longer flexible wire.
4. Voice coil burned out. If the voice coil is burned out and the speaker is silent, the voice coil should be replaced. Before replacing the voice coil of Discount TG152 in china, you should first remove the debris in the magnetic gap, then carefully put the new voice coil into the magnetic gap, straighten the voice coil, and use super glue to fix the upper and lower positions of the voice coil while listening. After the best position, use super glue to fill the gap between the voice coil and the paper cone to about half, and finally seal the dust cover, put the paper cone of the Discount TG152 speaker up, and put it aside for a day before it can be used normally.