NEC POWERMATE VE - SERVICE MANUAL 08-1996 Service Manual page 5

vi Contents
Replacing the Front Panel.............................................................................. 3-26
Replacing the 3 1/2-Inch Drive Bracket......................................................... 3-27
Adding External Options..............................................................................................3-28
Parallel Printer ......................................................................................................3-29
RS-232C Device Connection.................................................................................3-30
Section 4 Maintenance and Troubleshooting
Online Services ............................................................................................................4-1
NEC's FastFacts Service.......................................................................................4-2
NEC Bulletin Board Service..................................................................................4-3
America Online Service.........................................................................................4-5
Internet .................................................................................................................4-6
Maintenance ................................................................................................................4-6
System Cleaning....................................................................................................4-6
Keyboard Cleaning................................................................................................4-7
Mouse Cleaning ....................................................................................................4-7
Troubleshooting...........................................................................................................4-9
Diagnosing and Solving Problems .........................................................................4-9
CMOS Battery Replacement .................................................................................4-13
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
Removing the Secondary Cache ............................................................................5-9
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