NEC Versa 550 Series Service Manual page 7

iv Contents
Installing the Mouse Driver................................................................................... 1-26
Applying the System Utility Programs................................................................... 1-26
TIME.SYS Driver ......................................................................................... 1-26
PHDISK.EXE Utility..................................................................................... 1-27
System Upgrades......................................................................................................... 1-27
Memory Upgrade Procedure................................................................................. 1-27
System BIOS Upgrade Procedure......................................................................... 1-29
Section 2 NEC Versa 550 Specifications
General Specification of the NEC VERSA 550 Series.................................................. 2-1
Product Mix ................................................................................................................ 2-6
Motherboard ............................................................................................................... 2-6
LCD Status Board ................................................................................................ 2-8
Cables................................................................................................................... 2-8
Display Unit Specification............................................................................................ 2-8
LCD ..................................................................................................................... 2-8
Inverter................................................................................................................. 2-9
LCD Status Bar Indicator ..................................................................................... 2-9
FDD Unit Specification......................................................................................... 2-10
HDD Unit Specification........................................................................................ 2-11
NiMH Battery Pack Specification ......................................................................... 2-11
DC/DC Converter Specification............................................................................ 2-11
Battery Charger .................................................................................................... 2-12
Keyboard Unit Specification ................................................................................. 2-12
Pointing Device Specification................................................................................ 2-12
Switch Specification ............................................................................................. 2-13
AC/DC Adapter Specification............................................................................... 2-13
BIOS Specification ............................................................................................... 2-14
Power Management Features (Mode Definition) ................................................... 2-15
Power Management Features (Mode Transition)................................................... 2-16
Auto Power Reduction (APR) .............................................................................. 2-17
HotKey Definitions............................................................................................... 2-17
Environmental Specifications ................................................................................ 2-17
AC Power Source................................................................................................. 2-18
Vibration .............................................................................................................. 2-18
Shock ................................................................................................................... 2-18
ESD ............................................................................................................................ 2-19