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Contents v
DRAM Memory....................................................................................................3-6
ROM Subsystem...................................................................................................3-6
I/O Subsystem .............................................................................................................3-6
VIDEO Subsystem.......................................................................................................3-7
Video Chipset Controller ......................................................................................3-7
External VGA Capability.......................................................................................3-8
Keyboard Subsystem....................................................................................................3-8
PCMCIA Controller and Sockets.................................................................................3-9
Hard Disk Subsystem...................................................................................................3-9
Diskette Drive Subsystem ............................................................................................3-10
Pointing Device Subsystem ..........................................................................................3-10
Power Subsystem.........................................................................................................3-10
AC Power Adapter ...............................................................................................3-10
Internal Battery Pack ............................................................................................3-11
Power Board.........................................................................................................3-11
LCD Inverter Board Assembly..............................................................................3-11
Section 4 Field Service Guidelines
Preventive Maintenance ...............................................................................................4-1
Cleaning the Notebook’s Exterior .........................................................................4-1
Cleaning the Notebook’s Interior ..........................................................................4-2
Protecting the Disk Drives ....................................................................................4-2
Handling the Computer Battery Packs...................................................................4-2
Maintaining the LCD Quality ................................................................................4-3
Required Tools and Replacement Procedures...............................................................4-3
Parts Removal and Replacement Procedures ................................................................4-4
Removing/Replacing the Notebook Battery Pack ..................................................4-4
Removing/Replacing the Hard Disk Drive Module ................................................4-5
Removing/Replacing the Diskette Drive Module ...................................................4-5
Removing/Replacing the LCD Status Bar Cover and Hinges .................................4-6
Removing/Replacing the Keyboard........................................................................4-7
Removing/Replacing the Heat Plate.......................................................................4-7
Removing/Replacing the CPU...............................................................................4-7
Removing/Replacing the Cover-Display LCD Assembly Module...........................4-8
Removing/Replacing the System Top Cover Assembly and the NEC VersaGlide
Assembly...........................................................................................................4-8
Removing/Replacing the LED Board.....................................................................4-9
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SOLD BY laptopia2005 DO NOT RESELL!!