Dell Vostro 5481 Service Manual - Page 4

System fan...35 Removing the system fan...35 Installing the system fan...36 Heat sink ...37 Removing the heatsink...37 Installing the heat sink...38 Input output board...40 Removing the Input and Output board...40 Installing the Input and Output board...40 Display assembly...41 Removing the display assembly...41 Installing the display assembly...45 Power button with fingerprint reader...48 Removing the power button with fingerprint reader 48 Installing the power button with fingerprint reader 49 Power button...50 Removing the power button...50 Installing the power button...51 Power-adapter board...52 Removing the power-adapter port...52 Installing the power-adapter port...53 Touchpad...54 Removing the touchpad...54 Installing the touchpad...56 System board...58 Removing the system board...58 Installing the system board...61 Palmrest and keyboard assembly...64 Removing the palmrest and keyboard assembly...64 4 Troubleshooting...66 Enhanced Pre-Boot System Assessment - ePSA diagnostics 66 Running the ePSA Diagnostics...66 Diagnostic LED...66 Battery status LED...67 5 Getting help...68 Contacting Dell...68 4 Contents