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M350
User Manual
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User Manual [fr]
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NEC m350, P550 User Manual

VERSA M350/P550
Disassembly Manual
Table of contents
Overview.................................................................................................................................................................3
NEC VERSA M350/P550 Disassembly Manual
Page 2
Overview
This document contains step-by-steps disassembly instructions for the VERSA M350/P550 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 M350/P550 chassis without notice.
Technician Notes
Only technicians authorized by NEC Personal Products LTD. 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 are properly installed and tightened.
Required Tools
All disassembly procedures can be perform using the following tools:
PH 0x60 Philips screwdriver PH 0x40 Philips screwdriver SW5.0 Spacer screwdriver Flat screwdriver Small tweezers Pin
NEC VERSA M350/P550 Disassembly Manual
Page 3
Hazardous Voltage
There is hazardous voltage present inside the computer when it is connect 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 M350/P550 Disassembly Manual
Page 4
NEC VERSA M350/P550 Disassembly Manual
Page 5
Removing the Battery
Perform the following steps to remove the battery:
1. Make sure to power off the VERSA M350/P550
2. Turn the unit upside down.
3. Unlock the battery and slide it out of its place as the arrow shows in Fig. 1
Fig. 1 Removing the battery
NEC VERSA M350/P550 Disassembly Manual
Page 6
Removing the Memory Module
To remove the Memory Module, first remove the battery (see Removing the Battery), then perform the following steps:
1. Release the one screw retaining the memory module cover.
Fig. 2 Removing the screw retaining the memory module slot cover
2. Unclip the memory module as shown in Fig. 3
Fig. 3 Removing the memory module
3. Remove the memory module from its slot and put it aside.
NEC VERSA M350/P550 Disassembly Manual
M2x4 Sliver
Page 7
Removing the Hard Disk Drive
To remove the hard disk drive, first remove the battery (see Removing the Battery), then perform the following steps:
1. Remove the screws as shown in Fig. 4
Fig. 4 Removing the Hard disk drive cover
2. Release the screws that secure HDD module as shown in Fig. 5 and carefully pull the HDD module out from the base unit.
Fig. 5 Screw retaining the HDD module
M3x7 Copper
M3x7 Copper
NEC VERSA M350/P550 Disassembly Manual
Page 8
Removing the Optical Disk Drive
To remove the ODD, first remove the battery (see Removing the Battery) then perform the following steps:
1. Remove the screws retaining the optical drive as shown in Fig. 6
Fig. 6 Releasing the optical drive
2. Eject the optical drive using pin as shown in Fig. 7
Fig. 7 Ejecting the op tical drive
NEC VERSA M350/P550 Disassembly Manual
M2.5x9 Copper
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