Received peer fixing TPV AOC2219VWG display, fault to display it won't boot according customer's narrative. When using brightness difference before, see again when maintenance is ok good solutions

Teardown maintenance found two backlight bulb burn out entirely, check the power supply board of high voltage booster circuit performance is bad, also the normal method for maintenance, replacement backlight bulb, replace the original machine high pressure booster circuit.

Because customers have explicitly stated previously used when repairing the monitor light is not bad, so think of to the customer to improve the effect of display, directly replace the article used the LCD backlight bulb LED backlight

The first step is to get rid of the original machine part booster circuit, LCD change LED litres of clamp to the original mechanical and electrical source plate, light LED lamp test

The second step, article LED lights to the LCD screen

The third step, fixed LED litres of platen, installed

The last test at home page images, showing great, customers take machine also gave high praise to brightness.