viii Contents
4-8
Removing the Speaker Caps........................................................................... 4-10
4-9
Lifting up the Keyboard ................................................................................. 4-11
4-10
Positioning the Keyboard ............................................................................... 4-12
4-11
DIMM Features ............................................................................................. 4-13
4-12
Installing the DIMM....................................................................................... 4-13
4-13
Removing an Installed DIMM ........................................................................ 4-14
4-14
Removing the Bottom Base Screws................................................................ 4-15
4-15
Location of the Three Screws......................................................................... 4-16
4-16
Separating the Top Cover from the Base Unit ................................................ 4-17
4-17
Removing the VersaGlide............................................................................... 4-18
4-18
LCD Status Board ......................................................................................... 4-19
4-19
Removing Bridge Battery, CMOS Battery, and Buzzer .................................. 4-20
4-20
Removing the IR Assembly and Graph Board................................................. 4-22
4-21
Removing the CPU Board from the Graph Board........................................... 4-24
4-22
Removing the I/O Board ................................................................................ 4-25
4-23
NEC Versa Model 6220/30/60 Illustrated Parts Breakdown ........................... 4-26
A-1
Graph Board Layout ...................................................................................... A-1
A-2
I/O Board Layout........................................................................................... A-2
List of Tables
1-1
Model Configurations .................................................................................... 1-2
1-2
Memory Map ................................................................................................. 1-16
1-3
NEC Versa Series Chip Types and Technologies ............................................ 1-18
1-4
Interrupt Controllers ...................................................................................... 1-21
1-5
Automatic Power-Saving Features ................................................................. 1-22
1-6
Maximum Performance Default Settings......................................................... 1-24
1-7
Specifications................................................................................................. 1-25
2-1
I/O Connector Descriptions............................................................................ 2-3
2-2
Control and Switch Functions ........................................................................ 2-12
2-3
Fn Key Operations ......................................................................................... 2-14
2-4
POST Error Messages.................................................................................... 2-22
2-5
Beep Codes.................................................................................................... 2-24
2-6
Setup Key Functions ...................................................................................... 2-28
2-7
Setup Parameters ........................................................................................... 2-29