NEC POWERMATE PROFESSIONAL - SERVICE MANUAL 05-1997 Service Manual page 7

viii Contents
Section 5 Repair
Disassembly and Reassembly........................................................................................5-1
System Unit Cover Removal .................................................................................5-2
Side Panel Removal ..............................................................................................5-4
Expansion Board Removal ....................................................................................5-4
SIMM Removal ....................................................................................................5-5
Front Panel Assembly Removal .............................................................................5-7
Blank Panel and Metal Cover Plate Removal.........................................................5-7
3 1/2-Inch Diskette Drive Removal .......................................................................5-8
3 1/2-Inch Hard Disk Drive Removal ....................................................................5-10
5 1/4-Inch Device Removal...................................................................................5-11
Power Supply Removal.........................................................................................5-13
System Board Removal.........................................................................................5-15
Processor Subsystem Removal ..............................................................................5-16
Illustrated Parts Breakdown.........................................................................................5-17
Appendix A Connector Pin Assignments
I/O, Power Supply, and Chassis Intrusion Connectors ..................................................A-1
Parallel Interface Connector ..................................................................................A-2
Serial Interface Connectors ...................................................................................A-3
Keyboard and Mouse Connectors..........................................................................A-4
USB Connectors ...................................................................................................A-5
Audio/MIDI Connectors .......................................................................................A-5
Power Supply Connector ......................................................................................A-6
Chassis Intrusion Connector..................................................................................A-7
Storage Device Connectors..........................................................................................A-7
Diskette Drive Connector......................................................................................A-8
IDE Connectors ....................................................................................................A-9
LED Connectors..........................................................................................................A-10
Hard Drive LED Connector ..................................................................................A-10
Power LED Connector..........................................................................................A-11
Reset Button Connector........................................................................................A-11
Infrared Connector................................................................................................A-12
Sleep Connector....................................................................................................A-12
Power On Connector ............................................................................................A-13
ISA, PCI, and SIMM Connectors.................................................................................A-13