Acer Aspire E1-521 Acer Aspire E1-521 Notebook Service Guide - Page 82

CHAPTER 4 Troubleshooting Troubleshooting 4-2 General Information 4-2 Power On Issues 4-3 No Display Issues 4-4 LCD Picture Failure 4-6 Internal Keyboard Failure 4-7 Touchpad Failure 4-8 Internal Speaker Failure 4-9 Internal Microphone Failure 4-11 USB Failure 4-12 Wireless Function Failure 4-13 4-in-1 Card Function Failure 4-14 Unit Thermal Failure 4-15 Cosmetic Failure 4-16 Other Functions Failure 4-17 BIOS Problems 4-17 Intermittent Problems 4-18 Undetermined Problems 4-18