Acer TravelMate 4070 Service Manual

Also see for TravelMate 4070: User guide Guía del usuario Manuel d'utilisation Manual do utilizador

Contents

Acer TravelMate 4070 Service Manual Manual pdf 90 page image

85 Chapter 4Index of Symptom-to-FRU Error MessageLCD-Related SymptomsSymptom / Error Action in SequenceLCD backlight doesn't workLCD is too darkLCD brightness cannot be adjustedLCD contrast cannot be adjustedEnter BIOS Utility to execute “Load Setup Default Settings”, thenreboot system.Reconnect the LCD connectors.Keyboard (if contrast and brightness function key doesn't work).LCD inverter IDLCD cableLCD inverterLCDSystem boardUnreadable LCD screenMissing pels in charactersAbnormal screenWrong color displayedReconnect the LCD connectorLCD inverter IDLCD cableLCD inverterLCDSystem boardLCD has extra horizontal or vertical linesdisplayed.LCD inverter IDLCD inverterLCD cableLCDSystem boardIndicator-Related SymptomsSymptom / Error Action in SequenceIndicator incorrectly remains off or on, but systemruns correctlyReconnect the inverter boardInverter boardSystem boardPower-Related SymptomsSymptom / Error Action in SequencePower shuts down during operation Power source (battery pack and power adapter). See “PowerSystem Check” on page 74.Battery packPower adapterHard drive & battery connection boardSystem boardThe system doesn’t power-on. Power source (battery pack and power adapter). See “PowerSystem Check” on page 74.Battery packPower adapterHard drive & battery connection boardSystem boardThe system doesn’t power-off. Power source (battery pack and power adapter). See “PowerSystem Check” on page 74.Hold and press the power switch for more than 4 seconds.System boardBattery can’t be charged See “Check the Battery Pack” on page 76.Battery packSystem board