Solution: The PTT key is broken or stuck, the headphone head is broken or the water is short-circuited.
Preventive treatment: Avoid equipment used in harsh environments for a long time.
Solution: The battery connected to the walkie-talkie is in a low-voltage, high-voltage state or is out of lock, the indicator light will flash and there will be an alarm sound.
Preventive treatment: Please refer to the instruction manual to distinguish which type of alarm the faulty equipment is in according to the speed and length of the alarm sound, and then analyze and maintain it.
Solution: Activate with 7.2V power supply voltage, charge with charger, 1-2 hours longer than usual.
Preventive treatment: The battery will be slowly and automatically discharged to a very low voltage if it is placed for too long. At this time, the charging has exceeded the load capacity of the charger and the battery protection board circuit, and must be activated first.
Solution: The normal battery life is generally 2-3 years, and improper operation of battery charging will cause the battery to be easily damaged.
Preventive treatment: The life of battery charging and plugging times is generally 300 times, and the battery capacity will continue to decline slowly after the battery capacity drops to 80%.
Solution: Use the corresponding type of frequency writing software to rewrite the frequency, or manually enter the programming mode through the walkie-talkie with display screen to reset.
Preventive treatment: When manual frequency adjustment, please refer to the manual, and strictly follow the correct frequency adjustment steps for manual frequency adjustment.
Solution: Enter the frequency mode through the walkie-talkie with display screen, press the F key and then the # key to select the range: 5KHz\6.25 KHz\10KHz\12.5KHz\25 KHz\100KHz. Press the F key to confirm.
Precautions: Please read the instructions, which are described in detail.
Solution: The frequency writing software AH367\AH600, AH610 and other models can directly input non-standard sub-tones for non-standard settings.
Preventive treatment: Please use standard sub-tones as much as possible, because non-standard sub-tones will appear cross-frequency at different levels, so they are excluded from the selection criteria.