New lamp, half screen is bright the other half is much darker

LED damage need to replace

If it is an LED LCD TV, the backlight inverter board should be troubleshooted. Contact any service technician.

Thin screen LCD monitor brightness controls operate several fluorescent lamps called "backlights" that are positioned behind the LCD display. Typically, they're located around the edges of the screen - sometimes just at the top and bottom, and other times at the left and right edges and others still at all 4 edges.


Fluorescent "backlight" lamp, inverter & connection wiring.

The lamps are miniature versions of those sold in stores. They require a support circuitry called an inverter that convert & boosts the level of DC to AC voltage performing the functions of a ballast in a traditional fluorescent fixture.

The reason a part of your screen remains dark is because one or more of the components in the picture above has failed and will not allow the lamp to shine. Replacement lamps and inverters aren't expensive - but requires patience and the ability to disassemble / assemble the monitor (which is usually harder to do than it appears) and solder. They are available various lengths and color temperatures (you must get a lamp that is identical or it will be noticed). If this is a new monitor - you ought to return it for replacement. If used, consider the cost of purchasing a replacement (new or used) vs. repair.

I hope this helps & good luck!

Not worth attempting to fix and that is the reason it was tossed.

Its one of two things, bad lamps in the panel or bad Tcon board

Replace the light engine. If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

If you have a service vehicle soon light (not service engine soon) this usually indicates a problem with the foreward lamp system.Your problem seems confusing, but check your high beam lamp operation. These cars are NOTORIOUS for corroded harnesses to the headlights. The problem is usually buried behind the washer bottle or across the radiator area. If you are lucky, it may be a burned out high beam bulb. If the blue symbol for brights stays on and there is no click when pulling on high beam lever, you will need a new turn signal switch.

new lamp

Sounds like the flyback transformer is bad. couple of 100 dollars if it is that

yOU ARE HAVING A PROBLEM IN HORIZONTAL CIRCUIT OR IN YOUR POWER SUPPLY kindlyu take your T.V tO A QUALIFIED TECH to repair it.ypur problem could be a faulty capacitor ,flyback or horizontal output transistor.