Acer Aspire S3-391 Acer Aspire S3-391 Notebook Service Guide - Page 7

Replacing the WLAN Board 3-50 Replacing the M-SATA Board 3-51 Replacing the RTC Battery 3-52 Replacing the Thermal Module 3-53 Replacing the Mainboard 3-55 Replacing the Card Reader Board 3-59 Replacing the HDD Module 3-61 Replacing the SSD Module 3-64 Replacing the DC-In Module (WLAN Board 3-67 Replacing the DC-In Module (M-SATA Board 3-68 Replacing the WLAN Module 3-69 Replacing the Right Speakers 3-71 Replacing the Battery Pack 3-73 Replacing the Lower Case 3-76 CHAPTER 4 Troubleshooting Introduction 4-3 General Information 4-3 Power On Issues 4-4 No Display Issues 4-5 LCD Failure 4-7 Keyboard Failure 4-8 Touchpad Failure 4-9 Internal Speaker Failure 4-10 Microphone Failure 4-12 USB Failure 4-13 WLAN Failure 4-14 Card Reader Failure 4-15 Thermal Unit Failure 4-16 Other Functions Failure 4-17 Intermittent Problems 4-18 Undetermined Problems 4-18 Error Codes 4-19 BIOS Beep Codes 4-20 POST Codes 4-25 Component Codes 4-25 Progress Codes 4-29 vii