1. Please make sure that your LCD is ok before bidding this item, else you will be responsible for the incompatibility. 2. If you are not specialized in electronics or have doubts in operation, please contact us for instruction, as we are not able to responsible for wrong operation.Instruction to connect the controller board to the LCD:1. Take away the old inverter and old LVDS cable from the LCD panel.2. Connect the LVDS cable to your LCD panel.3. Connect controller board with PC by VGA cable/DVI cable/HDMI cable.4. Input power of 12V,4A. ( Please don"t revised the voltage jumper setting on the lcd controller board before confirmation from us, because wrong revising of this voltage will get your lcd burnt. By the way, please don"t connect the lvds cable wrongly, some wrong connecton can get your lcd burnt too, if you are not sure, please feel free to contact us.)