Acer AT3720A AT3720A Service Guide - Page 56

AT3720A Troubleshooting Guideline 1. Can not power on A Power code Plug in? LED Bright? no Check Power code no Replace Power board or Main board Or IO board or All cable / LED Bright Green color ? no LCD Panel no can Display ? END Check Remote control OK and keypad ? NG Replacement Remote control or IR board or Keypad board Check panel's no Check M/B all cable Replacement M/B Replacement Panel Replacement Cable Replacement M/B 50 Chapter 4