... dirty mark on board.2.check whether lack of electronic insulation gummed paper.3. check whether lack of fittings ... , rust, rot, heat elimination chassis.4. check internal and external connector of LCD display , Two memory, DVD driver, ... America, South America, Europe, Australia, Africa, and Asia... Contact us: Shenzhen Lihaicheng Technology Co., Ltd.Address: 2ndFloor,NO.84,MinLe Road,HuiLong ...