How to Fix a Broken Tachometer in Mitsubishi Pajero?

[ElleRose]

If the tachometer in a Mitsubishi Pajero is broken, it cannot be repaired and must be replaced. The advantages of the car tachometer's operation are as follows: 1. High static torque, the pointer is not prone to shaking, and it has strong anti-vibration performance; 2. It uses a single-chip microprocessor through software design, so it has high precision and strong anti-interference capability; 3. The hour meter uses LCD display, without mechanical parts, making it more reliable and modern. Extended content: The working principle of the car tachometer is that the tachometer receives digital pulse signals (sent by the sensor), processes them, and directly reads them into the CPU's counting port. The software calculates the speed and the corresponding position of the pointer, then through the CPU's control port, amplifies and drives the stepper motor to rotate in both positive and negative directions, indicating the corresponding speed value (the pointer is directly installed on the rotating shaft of the stepper motor). Each step of the stepper motor is only 1/3 degree.