Screen backlight lamp . A typical laptop LCD screen has only one backlight lamp installed. The backlight lamp mounts inside the laptop screen in the lower part of the screen as it outlined on the picture above. A pair of cables with one connector coming from the screen plugs into the screen inverter board. The backlight lamp receives high voltage AC power from the screen inverter board which receives low voltage DC power from the motherboard via the LCD screen cable as it shown on the picture below.

Screen backlight lamp . A typical laptop LCD screen has only one backlight lamp installed. The backlight lamp mounts inside the laptop screen in the lower part of the screen as it outlined on the picture above. A pair of cables with one connector coming from the screen plugs into the screen inverter board. The backlight lamp receives high voltage AC power from the screen inverter board which receives low voltage DC power from the motherboard via the LCD screen cable as it shown on the picture below.

My system will only boot correctly if I enable VGA mode. On a regular boot the OEM logo comes up, then the Windows logo, but after that I only get a black screen.

Post navigation Get help, support, and tutorials for Windows products—Windows 10, Windows 8.1, Windows 7, and Windows 10 Mobile. Computer Basics Lesson 2: Turning the Computer On and Off Back to the List of Computer Tutorials. Introduction; The Power Button: for turning on the CPU. Windows Vista To begin, click on Start and open your control panel from your Start menu. Click on Hardware and Sound. Click on Power Options. On the left side of the.

If you are using Windows 8 or Windows 8.1 operating system, you might be very. System Restore is a feature built into Windows that periodically creates “restore points” or backups of system files and/or user files so that the system can be.

On the next picture you see a typical backlight lamp removed from a typical laptop LCD screen. There are two cables soldered to both sides of the backlight lamp attached to one connector. BACKLIGHT LAMP REPLACEMENTIt is possible to replace a failed backlight lamp with a new one but it’s not easy because the backlight lamp is buried deep inside the LCD screen and it’s very easy to damage the screen during the disassembly process. This repair should be performed only by an experienced technician.

You can find some home made backlight replacement instructions if you do Google search. For inexperienced people it would be much easier to replace the whole LCD screen. BACKLIGHT LAMP FAILURE SYMPTOMS1. The laptop screen lights up only for a short period of time or will not light up at all.

The image on the screen is so dim that you can barely see it. At the same time, an external monitor attached to the laptop works fine.

When you turn on the laptop, the screen works fine for a while, then start flickering and the light turns off. Again, there is a very faint image on the laptop screen and external video output works fine. The screen works but the image has a reddish/pink tone.

External video output works fine. The backlight lamp failure symptoms are very similar to the inverter board failure symptoms. If you have to guess which one is causing the problem, try replacing the inverter board first.