Monitor does not respond after power-on

Monitor does not respond after power-on

A computer in the boot, power supply, processor, video card fans and the motherboard LEDs can rotate and glow normally, and on the system self-test Normal, there is no alarm sound, but the monitor screen is not any display, the monitor LED is yellow. In the case of this problem, the replacement method is usually used to check it first. However, there is an exception, if it is accidental power outages, computer use interruption, and then boot will not start, the monitor did not respond, the first thing should be done is the hard drive data cable unplugged, a little stop again plug in, and then the boot can be resolved, the use rate of more than 80%. If not, try the following method again:

Successively in order with another working normal computer memory, graphics card, processor, motherboard and other accessories to replace the defective computer accessories, but can not solve the problem, this shows that the problem is not out of these several accessories.

The display itself is less likely to be damaged, if it is the problem caused by the monitor itself, then in the use of the failure before the general should have some signs, such as display instability, flashing, flower screen or color or something. If this monitor has previously had this kind of trouble phenomenon, may request the professional maintenance personnel to carry on the overhaul.

There may be a problem or power supply interface bad, replace a power supply to try, if the fault disappears, it shows that the problem is in the power supply, if the replacement of power supply after the fault still exists, then it is possible to control the power of the micro-switch problem. The problem of micro-switch is often neglected by us, but because of the constant need to press it, time is also prone to problems, especially in some inferior chassis, this phenomenon is particularly common.

Remove the front panel of the chassis with a screwdriver and double-check the power and reset micro switch on it. In particular, the key to check the reset micro-switch, to see whether the micro-switch internal two metal shrapnel because of the loss of elasticity and rely on together, so that the micro-switch has been in the reset state, resulting in a short circuit, which caused the display of the failure. If it is a micro-switch problem, you can take it to the electrical shop to buy similar micro-switch to reinstall it.