27
2023
-
02
Common faults and solutions of walkie talkie
Author:
Interphone is a specialized tool for bidirectional mobile communication technology, which is generally suitable for relatively stable and frequent communication venues. But after prolonged use, walkie talkies can inevitably cause some common malfunctions. Below, the editor has sorted out some common problems and maintenance methods of walkie talkies for reference only.
1. The green light remains on when turning on, but there is no reception
This fault is common in analog walkie talkies on traditional motherboards, where the green light is constantly on when turned on and there is no noise coming out, but the green light is constantly on and the signal from the other party cannot be received
Solution: First, check if the noise to noise ratio coefficient of the walkie talkie is set to 0 or if there is interference from signal sources around it. Dismantle the Phase detector on the back of the circuit board directly after discharge, which is also called demodulator. It can be replaced according to its corresponding specifications of 400 megabytes or 450 megabytes. Sometimes it is because a contact angle of the demodulator is broken after the walkie talkie is bumped, which also causes such failures. It is also possible that the surrounding capacitors have broken or deteriorated.
2. No voice output
When turned on, the channel number is not broadcast, and there is no voice output when receiving it
Solution: Check if the volume switch is damaged, check if the headphone holder is damaged, check if the speaker is damaged, and check if the audio amplifier is damaged. After checking these places, the problem can be basically resolved.
