NEC J6N User manual

J6NService Guide
NEC Computers APAC Page 1
J6N Disassembly
•Required Tools
•Disassembly Instructions
•DIP Switch setting
•Reassembly Instructions

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NEC Computers APAC Page 2
Required Tools
All J6N maintenance procedures can be performed using the following tools:
nTweezers
nSmall Philips screwdriver
nSmall Flat screwdriver
nSpacer screwdriver Ø5MM

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Disassembly Instructions
This document contains step-by-step disassembly instructions for the J6N. The
instructions are clarified by images of the part that is being removed or disassembled.
Furthermore, the screws that are removed are shown next to the image of the parts
themselves.
When disassembling the system unit, follow these general rules.
§Do not disassemble the system into parts that are smaller than those specified in the
instructions.
§Label all removed connectors. Note where the connector goes and in what position it
was installed.
§Turn off the power and disconnect all power and all options. Also remove any PC-
Cards cards that are in the PCMCIA slot.

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1.Battery
Remove the battery pack of the notebook as follows:
a. Close LCD panel.
b. Flip over the unit.
c. Push and hold battery lock.
d. Pull outward to remove the battery.
Fig. 1: Remove Battery.

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2. Memory / Wireless module
a. Unscrew one screw to open SO-DIMM / Mini PCI Slot cover.
b. Release the SO-DIMM memory module(s).
c. Remove the memory module(s).
Fig. 2: SO-DIMM / Mini PCI Slot Cover.
d. Disconnect two antenna connections on wireless module.
e. Release and remove the wireless module from Mini PCI slot.
Fig. 3: Wireless Module.

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3. Keyboard Cover / Keyboard
a. With help small flat screw driver, carefully lift up the keyboard cover.
Fig. 4: KeyboardCover
b. Lift up the keyboard.
Fig. 5: Keyboard

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c. Unlock the keyboard flat cable connector.
Fig. 6: Keyboard cable connector

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4. Optical Drive
a. Close LCD lip and flip over the unit.
b. Unscrew one screw.
Fig. 7: Bottom Base
c. Let the unit stand and open up the LCD panel.
d. Take off one screw near to Optical Drive.
Fig. 8: Optical Drive
e. Push outward to release Optical Drive from unit.

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5. Top Cover / LED Board
a. Unscrews fifteenscrews on the bottom case.
Fig. 7: Bottom case
b. There are two more screws on Optical Drive Bay need to be removed.
Fig.8: Optical Drive Bay
B
A
A
D
C
B
D
B
A
A
AA
C
CA
C
A
AA
A

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c. Flip over the unit, unscrew one screw to release LED Board
Fig.9: LEDBoard
d. Disconnect the touch pad connection
e. Carefully left up top cover.
Fig. 10: Top Cover

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6. LCD Module
a. Remove LCD cable connector.
b. Take off six screwsto release LCD module from base unit.
Fig. 11: Bottom case
c. Carefully left up the LCD module.
Note: if the unit equip with wireless module, you need to disassemble main board to
release antenna cable under it before you can remove the LCD module.

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7. Modem
a. Unscrew two screws on modem.
Fig.12MDC Modem
b. Carefully left up the modem and disconnect cable attach to it.

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8HDD
a. Unscrew one screw at the side of HDD.
b. Push outward to release HDD.
Fig. 13HDD

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9CPU
a. Release the CPU Fan assembly screws descending follow the number marked
(4à3à2à1).
Fig. 14CPU Fan assembly
b. Disconnect fan connector and left up the CPU Fan assembly carefully.
c. Unlock the CPU from the CPU socket.
Fig. 15CPU socket

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10. Audio Board / Speaker Assembly
a. Remove two screws on the audio board.
Fig.16: Audio Board
b. Left up the audio board.
c. Unscrew three screws on HDD holder.
d. Left up the HDD holder.
e. Remove one screw on the right speaker.
f. Disconnect the speaker and remove it from base unit.
Fig.17: HDD Holder
B
A
A
A
A
B

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11. FDD
a. Disconnect cable connection on the FDD unit.
b. Unscrew two screws at the side of FDD unit.
Fig. 18: FDD unit
c. Lift up the FDD unit carefully. Fig. 19: FDD

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12. Main Board
a. Remove two screws on the main board.
Fig. 20: Main Board
b. Press the PCMCIA button before lift up the Main Board.
Fig. 21: Lifting up Main Board

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c. If you encounter difficulties to lift up the Main Board, you may remove the six
spacers at the rear of unit before perform step b.
Fig. 21: Lifting up Main Board
15.Touch Pad
a. Take offfour screws on the touch pad assembly.
Fig. 22: Touch pad assembly
b. Carefully remove touch pad module from top cover.

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16.LCD Module disassembly
a. Remove the six rubber cover and screws on the LCD Module.
Fig. 23: LCD Module
b. Carefully take out the LCD bezel.
c. Remove five screws on the LCD hinge & inverter board.
d. Lift up the LCD panel & disconnect the inverter board
e. Unscrews four screws at the side of LCD bracket.

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Fig. 24: LCD Module
A
A
A
A
A
A
B
B
B
B
B