Acer Extensa 4220 TravelMate 4320/4720 and Extensa 4220/4620 Service Guide - Page 108

Index of Error Messages Error Message List Error Messages Stuck Key System CMOS checksum bad - Default configuration used Real time clock error Previous boot incomplete - Default configuration used Invalid System Configuration Data Operating system not found Power-on indicator turns off and LCD is blank. Power-on indicator turns on and LCD is blank. Power-on indicator turns on and LCD is blank. But you can see POST on an external CRT. Power-on indicator turns on and a blinking cursor shown on LCD during POST. Failure Fixed Disk FRU/Action in Sequence see "Keyboard or Auxiliary Input Device Check" on page 94. RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. RTC battery Run BIOS Setup Utility to reconfigure system time, then reboot system. Mainboard Run "Load Default Settings" in BIOS Setup Utility. RTC battery Mainboard Run "Load Default Settings" in BIOS Setup Utility. Mainboard Enter Setup and see if fixed disk and drive A are properly identified. CD/DVD-ROM drive Hard disk drive Mainboard Power source (battery pack and power adapter.) See "Power System Check". Ensure every connector is connected tightly and correctly. Reconnect the DIMM. Mainboard. Power source (battery pack and power adapter.) See "Power System Check". Reconnect the LCD connector Hard disk drive LCD cable LCD inverter LCD Mainboard Reconnect the LCD connectors. LCD cable LCD inverter LCD Mainboard Ensure every connector is connected tightly and correctly. Mainboard Reconnect hard disk drive connector. "Load Default Settings" in BIOS Setup Utility. Hard disk drive Mainboard 98 Chapter 4