In order to solve problems that customers fault LED display, LED display The following are common problems and solutions:
A, LED display no signal output, because the control card voltage is not normal, flat cable is plugged in the wrong direction, send, after receiving the card, check the voltage to normal, the card, replace.
Second, LED display full screen shaking phenomenon, one is the control card, multimedia card address is incorrect, re-adjusted or replaced. Another, as the entire screen with a slight jitter, due to lack of power display power, measure power supply is normal, if the supply voltage drops below 190V, please adjusted to normal, such as the power supply voltage is not normal, please contact us.
Three, LED display full screen bright line, because the computer crashes or power failure, restart the computer.
Fourth, local display panel does not light, and subsequently are a long bright line due to the board to provide the + 5V supply switching power supply no output, that is a power failure, you can turn off the screen, whether a short circuit between the + 5V supply and 0V measure . (Normal is about 15Ω, 12Ω may be lower than the short-circuit, short-circuit if a short circuit to find where, if the female was normal, indicating that the power supply has been damaged, replace it.
Five, two-line display unit is not bright because the manifold HC245 not normal, should be checked to be replaced.
Six, if you open an instant computer screen off, due to insufficient power supply, with LED display and the computer used for the same road, we recommend that you display one power alone, so as not to interfere with computer-generated electricity.