The Detection Method Of LED Display
Resistance detection method, the multimeter is adjusted to the resistance file, to detect a normal circuit board of a certain point to the ground resistance value, and then detect another piece of the same circuit board of the same point test and the normal resistance value is different, if different, to determine the scope of the problem.
Voltage detection method, the multimeter to the voltage range, detect the suspected problem of a certain point of the circuit voltage to ground, compare whether similar to the normal value, otherwise determine the scope of the problem.
Short circuit detection method, the multimeter to short circuit detection gear (some diode voltage drop gear or resistance gear, generally with alarm function), detect whether there is a short circuit phenomenon, short circuit should be found after priority to solve, so that it does not burn out other devices. This method must be operated in the case of circuit failure to avoid damage to the meter.
The voltage drop detection method, the multimeter to the diode voltage drop detection, because all ICs are composed of a number of basic units, just miniaturized, so when the current on one of its pins, there will be a voltage drop on the pin. Generally the same type of IC the same pin on the pressure drop is similar, according to the pin on the pressure drop value is good or bad, must be operated in the case of circuit power. This method has some limitations, such as the device being tested is high resistance, it can not be detected.
- How Should LED Display Be Disinfected?
- LED Display Important Components Of The Role
- LED Display Common Technical Terms
- Advantages Of LED Display
- LED Display Good And Bad How To Distinguish
- LED Wavelength Control Range
- Factors Affecting LED Display
- What Is The Impact Of LED Beads On Hangzhou LED...
- Common Installation Requirements For LED Displays
- The Difference Between Outdoor And Indoor LED D...
- LED Display Maintenance Tips
- Features And Functions Of Indoor Full-color LED...
- Multi-scene Application Of Digital Signage
- Digital Signage To Help The Retail Industry
- What Are The Advantages Of The Liquid Crystal A...
- What Is The Future Market Of LCD Advertising Ma...
- Digital Signage For The Promotion Of Products