Acer TravelMate 420 Service Manual

Also see for TravelMate 420: Guía del usuario Manuel d'utilisation Guia do utilizador

Contents

52 Chapter 2BIOS Flash UtilityThe BIOS flash memory update is required for the following conditions:T New versions of system programsT New features or optionsT Restore a BIOS when it becomes corrupted.Use the Flash utility to update the system BIOS flash ROM.NOTE: If you do not have a crisis recovery diskette at hand, then you should create a Crisis RecoveryDiskette before you use the Flash utility.NOTE: Do not install memory-related drivers (XMS, EMS, DPMI) when you use the Flash utilities.NOTE: Please use the AC adaptor power supply when you run the Flash utility. If the battery pack does notcontain enough power to finish BIOS flash, you may not boot the system because the BIOS is notcompletely loaded.Fellow the steps below to run the Flash.1. Prepare a bootable diskette.2. Copy the Flash utilities to the bootable diskette.3. Then boot the system from the bootable diskette. The Flash utility has auto-execution function.System Diagnostic DisketteThis diagnostic diskette is for the Acer TravelMate 420 series notebook machine. You can find the utility inService CD kit. It provides the following functions:1. RTC Function Test2. PIO Loop Back Test3. CD ROM Function Test4. Touchpad and USB Mouse Test5. Video Model (R.G.B.) Test6. Internal Keyboard Test7. Num/Caps/Scroll Key Lock Test8. Battery (Charge/Discharge) Test9. Audio Test10. Audio CD Play Function Test11. Lid Switch Function Test12. Easy Button Function Test13. FAN Test14. CRT Output Function TestTo use the diagnostic programs, and system utilities, please boot the system from this service CD. Thediagnostic programs contain autorun function under DOS. Please select the item you want to testunder DOS mode according to the menu.IMPORTANT: 1The diagnostics program we use for TravelMate 420 series is not exactly the same as PQA(Product Quality Assurance), the diagnostic program we used to employ in other model. The systemdiagnostic utilities is provided by Acer Headquarters. You can utilize it as a basic diagnostic tool. Toget this program, find it in the TravelMate 420 series service CD kit. To better fit local service1 New added description. Please pay attention to it.