Tag Lenovo E460 notebook

Lenovo E460 Notebook Boot Dark Screen repair Check that the backlight source is EC119 pin, and there is no broken line or short circuit, and the resistance value is about 566. Find a 3.3V forced pull-up directly on the motherboard,…

Lenovo E460 laptop turned on the dark screen and began to dismantle the screen. It was found that Capacitor,Short circuit and Fuse around the screen booster chip were burnt out. The Current heating test method was used, and 3V VCC Current heating test was added to the back stage of Fuse. After touching the boost chip, it was hot to remove it. It was found that Short circuit was eliminated, and the screen was delivered directly. The new screen was replaced and the fault was solved.