Long Yu Hin industry touch screen repair
Model: LED automatic machine touch screen
Fault: boot LCD screen without display
Fault analysis: power supply voltage measurement is normal, observed that the liquid crystal lamp is lit, after repeated measurement excluded after a power failure, power supply and measurement of liquid crystal display CPU motherboard power and reaction are normal. In the use of special test equipment to measure the liquid crystal display IC found that there is a problem, after the replacement of troubleshooting.
Jiahong Serena touch screen repair black, white, dark blue, screen, no backlight, do not touch touch sensitive, slow response, touch no response, bad communication etc..
Jia Hong Wei repair service hotline: 0755-28916839, 13640994287 Shaw