NEC POWERMATE VE - SERVICE MANUAL 05-1996 Service Manual

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Contents

NEC POWERMATE VE - SERVICE MANUAL 05-1996 Service Manual Manual pdf 5 page image

vi ContentsRemoving the Front Panel ............................................................................... 3-25Installing the 5 1/4-Inch Device....................................................................... 3-27Replacing the Front Panel................................................................................ 3-28Replacing the 3 1/2-Inch Drive Bracket .......................................................... 3-29Adding External Options................................................................................................. 3-30Parallel Printer ......................................................................................................... 3-30RS-232C Device Connection................................................................................... 3-31Section 4 Maintenance and TroubleshootingMaintenance .................................................................................................................... 4-2System Cleaning ...................................................................................................... 4-2Keyboard Cleaning................................................................................................... 4-3Mouse Cleaning ....................................................................................................... 4-3Troubleshooting .............................................................................................................. 4-4Diagnosing and Solving Problems........................................................................... 4-4CMOS Battery Replacement.................................................................................... 4-9Section 5 System Unit RepairDisassembly And Reassembly ........................................................................................ 5-1System Unit Cover Removal.................................................................................... 5-2Expansion Board Removal ...................................................................................... 5-3PCI/ISA Backboard Removal .................................................................................. 5-53 1/2-inch Diskette and Hard Disk Drive Removal ................................................. 5-5Front Panel Assembly Removal............................................................................... 5-7Blank Panel Removal............................................................................................... 5-8Speaker Assembly Removal .................................................................................... 5-8SIMM Removal ....................................................................................................... 5-95 1/4-Inch Device Removal ..................................................................................... 5-10Power Supply Removal............................................................................................ 5-11System Board Removal............................................................................................ 5-13Illustrated Parts Breakdown ..................................................................................... 5-14Appendix A Connector Pin AssignmentsSerial Interface Connectors ............................................................................................. A-3Parallel Interface Connector............................................................................................ A-4VGA Interface Connector Pin Assignments ................................................................... A-6