Acer Aspire 4540 Acer Aspire 4540 Series Service Guide - Page 224

Flowchart 55 Mainboard 80 MediaTouch Button Failure 151 Memory Check 138 MIC Module 94 Model Definition 180 Modem Module Removing 78 N No Display Issue 139 O ODD Removing 53 Online Support Information 211 P Panel 5 Bottom 9 left 5 Power On Failure 138 R RJ-11 Port Removing 81 RTC Battery Removing 74, 108 S SD Dummy Card Removing 45 Speaker Module Removing 60 Switch Cover Removing 57 System Block Diagram 4 T Test Compatible Components 199 Thermal Module Removing 83 Thermal Unit Failure 152 214 Top 161 TouchPad Bracket Removing 72 Touchpad Failure 142 Troubleshooting Built-in KB Failure 141 EasyTouch Buttons 151 Fingerprint Reader 152 Internal Microphone 144 Internal Speakers 142 LCD Failure 141 MediTouch Buttons 151 No Display 139 Other Failures 153 Power On 138 Thermal Unit 152 Touchpad 142 USB 149 WLAN 150 U Undetermined Problems 154 Upper Cover Removing 67 USB Board Removing 77 USB Failure (Rightside) 149 utility BIOS 23-31 W Windows 2000 Environment Test 200 Wireless Function Failure 150 WLAN Module Removing 48