vi Contents
Removing the Front Panel ............................................................................... 3-25
Installing the 5 1/4-Inch Device....................................................................... 3-27
Replacing the Front Panel................................................................................ 3-28
Replacing the 3 1/2-Inch Drive Bracket .......................................................... 3-29
Adding External Options................................................................................................. 3-30
Parallel Printer ......................................................................................................... 3-30
RS-232C Device Connection................................................................................... 3-31
Section 4 Maintenance and Troubleshooting
Maintenance .................................................................................................................... 4-2
System Cleaning ...................................................................................................... 4-2
Keyboard Cleaning................................................................................................... 4-3
Mouse Cleaning ....................................................................................................... 4-3
Troubleshooting .............................................................................................................. 4-4
Diagnosing and Solving Problems........................................................................... 4-4
CMOS Battery Replacement.................................................................................... 4-9
Section 5 System Unit Repair
Disassembly And Reassembly ........................................................................................ 5-1
System Unit Cover Removal.................................................................................... 5-2
Expansion Board Removal ...................................................................................... 5-3
PCI/ISA Backboard Removal .................................................................................. 5-5
3 1/2-inch Diskette and Hard Disk Drive Removal ................................................. 5-5
Front Panel Assembly Removal............................................................................... 5-7
Blank Panel Removal............................................................................................... 5-8
Speaker Assembly Removal .................................................................................... 5-8
SIMM Removal ....................................................................................................... 5-9
5 1/4-Inch Device Removal ..................................................................................... 5-10
Power Supply Removal............................................................................................ 5-11
System Board Removal............................................................................................ 5-13
Illustrated Parts Breakdown ..................................................................................... 5-14
Appendix A Connector Pin Assignments
Serial Interface Connectors ............................................................................................. A-3
Parallel Interface Connector............................................................................................ A-4
VGA Interface Connector Pin Assignments ................................................................... A-6
