Monitor black screen, the host work properly, but the screen is bright for a few seconds on the black screen, turn off the display button, re opened, still bright seconds, this black screen, so repeatedly. Change a monitor, use normally, appear to be to show a problem, what problem is this excuse me?
Hello: the display is bright for a few seconds on the black screen, check the power filter capacitor, high voltage output capacitor, to see whether the loss of capacity, drum roof, leakage, backlight, aging, etc..
You try again, the problem monitor received on other host, see if the problem appears, if appear, then you want to find after sale to you, display back, factory settings. Black screen when the lights are yellow bar, indicating that the host received signals received signal abnormalities, but also may be the problem of video cards. Have to go after the sale test.
Is the indicator light normal when the screen is black?If it is, should be the display board is not high-pressure output, so the display backlight lamp is not bright, looks like a black screen (close to the display, should be inside the image), recommended to send maintenance repair shop under high pressure plate. Generally repair the high pressure board on dozens of dollars.If the indicator light is black, then analyze the power section. Power supply may be the problem, but there may be power circuit on the power board, but also may be the driver board on the power circuit, maintenance, I would like to around 50.
First, the display shows a few seconds after the black screen, re open the display power supply, the failure is still the case, indicating that the fault in the display itself, the specific location is:1, high voltage plate fault;2, the lamp fault, such as a lamp burning, wiring connecting;3, AD drive board fault;Two, landlord from the black screen interval roughly determine the fault location, that is:1, 1~2 seconds blank screen, after the restart is still 1~2 seconds, usually backlight circuit failure, that is, the item second;2, 2 seconds later, the advantage can reach 5~10 seconds, usually a high voltage board failure;Less than 5 seconds, usually a high voltage transformer turn to turn short circuit, at this time can hear "squeak" vibration bell;If more than 10 seconds, and the longer the shutdown (restart), the screen will be a long time, it is power board a "ablative" re welding can weld.
Monitor problems, ah, what is the specific location, it must be checked, there may be power protection, but also may be a part of the short circuit, and then protect the circuit action, and so on.
