PackardBell versa p520 Service Manual
NEC
Versa P520
Disassembly Manual
Table of contents
Overview.................................................................................................................................................................3
Technician Notes....................................................................................................................................................3
Disassembly Instructions........................................................................................................................................3
Reassembly Instructions........................................................................................................................................3
Required Tools .......................................................................................................................................................3
Hazardous Voltage.................................................................................................................................................4
Avoid Electrostatic Discharge.................................................................................................................................4
Power Supply Unit..................................................................................................................................................4
Removing the Battery.............................................................................................................................................5
Removing the memory module ..............................................................................................................................5
Removing the Wireless LAN Mini PCI Card...........................................................................................................6
Removing the Multi Bay Floppy Disk Drive............................................................................................................7
Removing the Versa Bay IV Optical Drive .............................................................................................................7
Removing the Keyboard Cover..............................................................................................................................8
Removing the Keyboard.........................................................................................................................................8
Removing the LED's and Switch Board .................................................................................................................9
Removing the Thermal Plate................................................................................................................................10
Removing the CPU Fan .......................................................................................................................................10
Removing the CPU Heat Sink..............................................................................................................................11
Removing the CPU...............................................................................................................................................11
Removing the LCD Assembly ..............................................................................................................................11
Removing the Glide Pad Assembly......................................................................................................................14
Removing the Hard disk drive..............................................................................................................................16
Removing the Top Cover .....................................................................................................................................18
Removing the RTC Battery, Microphone and connector......................................................................................18
Removing the Audio board...................................................................................................................................19
Removing the charger board................................................................................................................................20
Removing the Versa Bay IV Frame Plate ............................................................................................................20
Removing the Multi Bay rails left and right...........................................................................................................20
Removing the metal DC-IN bracket......................................................................................................................21
Removing the Main board....................................................................................................................................22
Removing the MDC Modem cable.......................................................................................................................22
Removing the Speakers Set.................................................................................................................................23
Removing the I/O Door.........................................................................................................................................24
LCD disassembly..................................................................................................................................................25
Disassembling the Optical drive...........................................................................................................................30
Notice ...................................................................................................................................................................32
NEC Versa P520 Disassembly Manual Page 2
Overview
This document contains step-by-step disassembly instructions for the Versa P520 chassis. The instructions are
illustrated where necessary with 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.
NEC reserves the right to make changes to the Versa P520 chassis without notice.
Technician Notes
Only technicians authorized by NEC Computers International BV should attempt to repair this equipment. All
troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the
complexity of the individual boards and subassemblies, no one should attempt to make repairs at the component
level or to make modifications to any printed wiring board. Improper repairs can create a safety hazard. Any
indication of component replacement or printed wiring board modifications may void any warranty or exchange
allowances.
Disassembly Instructions
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.
Reassembly Instructions
Reassembly is the reverse of the disassembly process. Use care to ensure that all cables and screws are returned
to their proper positions. Check that no tools or any loose parts have been left inside the chassis. Check that
everything is properly installed and tightened.
Required Tools
All disassembly procedures can be performed using the following tools:
Philips screwdriver
Small flatbed screwdriver
HEX bolt screwdriver 5mm
A plastic flatbed screwdriver
NEC Versa P520 Disassembly Manual Page 3
Hazardous Voltage
There is hazardous voltage present inside the computer
when it is connected to an AC supply, even when the
computer’s power switch is off. Exposure to hazardous
voltage could cause personal injury. To avoid risk of injury,
contact an Authorized Service Provider for proper
(un)installation of optional hardware devices.
Avoid Electrostatic Discharge
Electrostatic electricity can easily damage circuit cards and
integrated circuits (ICs). To reduce risk of damage, store
them in protective packaging whenever they are not
installed in your system.
Add-in cards can be extremely sensitive to ESD and always
require careful handling. After removing the card from the
computer, place the card flat on a grounded, static-free
surface, component-side up. Use a conductive foam pad if
available, but not the card wrapper. Do not slide the card
over any surface.
Before you install or remove memory modules, video
memory, disk drives, circuit cards or other devices, protect
them from static electricity. To do so, make sure your
computer’s power switch is OFF. Then, unplug the
computer’s AC power cord. Before picking up the device you
(un)install, you should wear an anti-static wrist wrap
(available at electronic supply stores). Be sure to connect
the wrist wrap to an unpainted metal portion of the computer
chassis. As an alternative, you can dissipate electrostatic
build-up by touching an unpainted metal portion of the
computer chassis with one hand. Then touch the device you
are (un)installing with the other hand, and maintain
continuous contact with it until it is (un)installed in the
computer.
Power Supply Unit
Under no circumstances should you attempt to disassemble
the power supply. The power supply contains no userserviceable parts. Inside the power supply are hazardous
voltages that can cause serious personal injury. Always
return a defective power supply to your dealer.
WARNING
Ensure that the computer is disconnected from
its power source and from all
telecommunications links, networks, or modem
lines whenever the chassis cover is removed.
Do not operate the computer with the cover
removed.
AVERTISSEMENT
Assurez-vous que le système est débranché de
son alimentation ainsi que de toutes les
liaisons de télécommunication, des réseaux, et
des lignes de modem avant d’enlever le capot.
Ne pas utiliser le système quand le capot est
enlevé.
WARNUNG
Das System darf weder an eine Stromquelle
angeschlossen sein noch eine Verbindung mit
einer Telekommunikationseinrichtung, einem
Netzwerk oder einer Modem-Leitung haben,
wenn die Gehäuseabdeckung entfernt wird.
Nehmen Sie das System nicht ohne die
Abdeckung in Betrieb.
ADVERTENCIA
Asegúrese de que cada vez que se quite la
cubierta del chasis, el sistema haya sido
desconectado de la red de alimentación y de
todos lo enlaces de telecomunicaciones, de red
y de líneas de módem. No ponga en
funcionamiento el sistema mientras la cubierta
esté quitada.
WAARSCHUWING
Zorg er voor dat alle verbindingen van en naar
de computer (stroom, modem netwerk, etc)
verbroken worden voordat de behuizing
geopend wordt. Zet de computer nooit aan als
de behuizing geopend is.
AVVERTENZA
Prima di rimuovere il coperchio del telaio,
assicurarsi che il sistema sia scollegato
dall’alimentazione, da tutti i collegamenti di
comunicazione, reti o linee di modem. Non
avviare il sistema senza aver prima messo a
posto il coperchio
NEC Versa P520 Disassembly Manual Page 4
Removing the Battery
1. Make sure the notebook is powered off.
2. Close the lid of the notebook.
3. Turn the unit upside down.
4. Unlock the battery and lift it out of its place.
Fig. 1: Removing the battery
Make sure that in all the disassembly steps that the battery is removed!
Removing the memory module
1. Unscrew one screw to remove the memory module slot cover.
2. Pull apart the clips retaining the memory module in order to release the module
3. Remove the memory module
M2.3x3
Fig. 2: Removing the memory module
NEC Versa P520 Disassembly Manual Page 5
Removing the Wireless LAN Mini PCI Card
1. Unscrew one screw to remove the Wireless LAN Module slot cover.
2. Carefully disconnect the two antenna wires connected to the mini PCI card.
Fig. 3: Disconnecting the antenna wires
3. Pull apart the clips retaining the mini PCI card in order to release the LAN wireless
mini PCI card a put it aside.
Fig. 4: Removing the Wireless LAN mini PCI card
M2.3x3
NEC Versa P520 Disassembly Manual Page 6
Removing the Multi Bay Floppy Disk Drive
1. Slide the latch as shown in the picture to unlock the Multi Bay Device.
2. Carefully extract the Multi Bay floppy disk drive from its location.
Fig. 5: Removing the floppy disk drive
Removing the Versa Bay IV Optical Drive
1. Slide the latch as shown in the picture to unlock the Versa Bay Optical drive.
2. Carefully extract the Versa Bay IV drive from its location.
Fig. 6: Removing the Versa Bay IV optical drive
NEC Versa P520 Disassembly Manual Page 7
Removing the Keyboard Cover
1. Carefully insert a flat screwdriver in the positions as shown in the picture, release the
keyboard cover and put it aside.
Fig. 7: Removing the keyboard cover
Removing the Keyboard
1. Remove the keyboard cover.
2. Carefully lift up the keyboard and put it face down on the front of the notebook taking
care not to rip off the keyboard flat cable.
Fig. 8: Lifting up the keyboard
3. Locate the connector on the main board where the keyboard cable is connected.
NEC Versa P520 Disassembly Manual Page 8
Fig. 9: Disconnecting the keyboard flat cable from the main board
4. Gently unlock the keyboard flat cable form the connector on the main board and free
up the keyboard cable.
5. Take out the keyboard and put it aside.
Removing the LED's and Switch Board
1. Remove the keyboard Cover
2. Lift up the keyboard.
3. Unscrew the one screw retaining the LED’s and switch board and remove it.
Fig. 10: Removing the LED’s and switch board
M2x6
NEC Versa P520 Disassembly Manual Page 9
Removing the Thermal Plate
4. Remove the keyboard cover.
5.
6.
7. Remove the screws maintaining the Thermal Plate as shown in the picture below.
Remove the Keyboard.
Remove the LED's and switch board.
(14)=M2x4
Removing the CPU Fan
1. Remove the thermal plate.
2. Disconnect the connector fan.
3. Unscrew the screws (18) and (10).
4. Extract carefully the CPU fan.
Fig. 11: Removing the thermal plate
Fig. 12: Removing the CPU fan
(Arrows)
3xM2x6
(10)=M2.3x5
(18)=M2x4
NEC Versa P520 Disassembly Manual Page 10
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