Putting the computer to sleep or shutting it down ..........25 Putting your computer to sleep ......25 Shutting down the computer ......26 Lenovo N22 ..........27 Specifications ..........27 Status indicators ........... 29 Fn key combinations........30 FRU replacement notices ......31 Screw notices ..........31...
About this manual This manual contains service and reference information for the following Lenovo product: Lenovo N22 Use this manual to troubleshoot problems. The manual is divided into the following sections: • The common sections provide general information, guidelines, and safety information required for servicing computers.
Safety information Safety information This chapter presents the following safety information that you need to get familiar with before you service a Lenovo N22 computer: • “General safety” on page 2 • “Electrical safety” on page 3 • “Safety inspection guide” on page 5 •...
Lenovo N22 Hardware Maintenance Manual General safety Follow these rules below to ensure general safety: • Observe a good housekeeping in the area where the machines are put during and after the maintenance. • When lifting any heavy object: 1. Make sure that you can stand safely without slipping.
About this manual Electrical safety Observe the following rules when working on electrical equipments. Important: Use only approved tools and test equipments. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have rubber floor mats near their machines that contain small conductive fibers to decrease electrostatic discharges. Do not use such kind of mat to protect yourself from electrical shock. • Find the room emergency power-off (EPO) switch, disconnecting switch or electrical outlet.
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Lenovo N22 Hardware Maintenance Manual • Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. • Do not touch live electrical circuits with the reflective surface of a plastic dental mirror.
4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations. 7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.
Lenovo N22 Hardware Maintenance Manual Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.
About this manual Safety notices: multilingual translations The safety notices in this section are provided in English, French, German, Hebrew, Italian, Japanese, and Spanish. Safety notice 1 Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds.
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Lenovo N22 Hardware Maintenance Manual Safety notice 2 DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short- circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. Certaines batteries de secours contiennent du nickel et du cadmium. Ne les démontez pas, ne les rechargez pas, ne les exposez ni au feu ni à l’eau. Ne les mettez pas en court-circuit. Pour les mettre au rebut, conformez-vous à la...
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About this manual Safety notice 3 DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery. La batterie contient du nickel. Ne la démontez pas, ne l’exposez ni au feu ni à l’eau. Ne la mettez pas en court-circuit. Pour la mettre au rebut, conformez-vous à la réglementation en vigueur. Lorsque vous remplacez la batterie, veillez à n’utiliser que les modèles cités dans la liste de pièces détachées adéquate. En effet, une batterie inappropriée risque de prendre feu ou d’exploser. Akkus enthalten geringe Mengen von Nickel. Sie dürfen nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen. La batteria contiene piccole quantità di nichel. Non smontarla, gettarla nel fuoco o nell’acqua né cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria, utilizzare soltanto i tipi inseriti nell’appropriato Catalogo parti. L’impiego di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa. Las baterías contienen pequeñas cantidades de níquel. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Deséchelas tal como dispone la normativa local. Utilice sólo baterías que se encuentren en la lista de...
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Lenovo N22 Hardware Maintenance Manual Safety notice 4 DANGER The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. La pile de sauvegarde contient du lithium. Elle présente des risques d’incendie, d’explosion ou de brûlures graves. Ne la rechargez pas, ne retirez pas son connecteur polarisé et ne la démontez pas. Ne l’exposez pas à une temperature...
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About this manual Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 15 minutes. Seek medical care if any symptoms caused by the fluid are present after washing. Si le panneau d’affichage à cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, rincez-les abondamment pendant au moins quinze minutes. Consultez un médecin si des symptômes persistent après le lavage. Die Leuchtstoffröhre im LCD-Bildschirm enthält Quecksilber. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Der LCD-Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgemäß behandelt wird oder der Computer auf den Boden fällt. Wenn der Bildschirm beschädigt ist und die darin befindliche Flüssigkeit in Kontakt mit Haut und Augen gerät, sollten die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespült und bei Beschwerden anschließend ein Arzt aufgesucht werden.
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Lenovo N22 Hardware Maintenance Manual Safety notice 6 DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d’alimentation. Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der Spannungswandlerplatine umgibt, nicht entfernen. Per evitare scosse elettriche, non rimuovere la copertura in plastica che avvolge la parte inferiore della scheda invertitore. Para evitar descargas, no quite la cubierta de plástico que rodea la parte baja de la tarjeta invertida. Safety notice 7 DANGER Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials. Bien que le voltage des batteries principales soit peu élevé, le court-circuit ou la mise à la masse d’une batterie peut produire suffisamment de courant pour brûler des matériaux combustibles ou causer des brûlures corporelles graves. Obwohl Hauptbatterien eine niedrige Spannung haben, können sie doch bei Kurzschluß oder Erdung genug Strom abgeben, um brennbare Materialien zu...
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About this manual Safety notice 8 DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d’alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d’interface. Die Stromzufuhr muß abgeschaltet, alle Stromkabel aus der Steckdose gezogen, der Akku entfernt und alle Verbindungskabel abgenommen sein, bevor eine FRU entfernt wird. Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi di interconnessione. Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de las tomas de corriente eléctrica, quite la batería y, a continuación, desconecte cualquier cable de conexión entre dispositivos.
Lenovo N22 Hardware Maintenance Manual Laser compliance statement Some models of Lenovo computer are equipped from the factory with an optical storage device such as a CD-ROM drive or a DVD-ROM drive. Such devices are also sold separately as options. If one of these drives is installed, it is certified in the U.S.
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About this manual A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. Note the following: DANGER Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe diretamente por meio de instrumentos óticos e evite exposição direta com o feixe de luz.
To download software fixes, drivers, and BIOS, follow the steps below: 1. Go to http://support.lenovo.com. 2. Enter the serial number or select a product or use Lenovo smart downloading. 3. Select the BIOS/Driver/Applications and download.
Important service information Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs: • If you are instructed to replace an FRU, but the replacement does not solve the problem, reinstall the original FRU before you continue. •...
FRU part numbers. Lenovo plans to transit to RoHS compliance well before the implementation date and expects its suppliers to be ready to support Lenovo’s requirements and schedule in the EU. Products sold in 2005 and 2006 will contain some RoHS compliant FRUs.
General checkout General checkout This chapter presents the following information: • “What to do first” on page 20 • “Power system checkout” on page 21 Before you go to the checkout, make sure to read the following important notes: Important notes: • Only certified trained personnel can service the computer.
Lenovo N22 Hardware Maintenance Manual What to do first When you do return an FRU, you must include the following information in the parts exchange form or parts return form that you attach to it: 1. Name and phone number of servicer 2.
4. If the voltage is acceptable, do the following: • Replace the system board. • If the problem persists, go to “Lenovo N22” on page 27. Note: Noise from the AC adapter does not always indicate a defect. Checking operational charging...
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Lenovo N22 Hardware Maintenance Manual Perform operational charging. If the battery status indicator or icon is not lit, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
In order to save application files and the initial backed up files of the system, the hard disk in a Lenovo computer includes a hidden partition when it is shipped. If you need to restore the system to the point of your first boot up, just enter Lenovo OneKey Recovery System and run System Recovery.
Lenovo N22 Hardware Maintenance Manual Passwords As many as three passwords may be needed for any Lenovo computer: the power-on password (POP), the hard disk password (HDP), and the supervisor password. If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on.
Related service information Power management Note: Power management modes are not supported for an APM operating system. To reduce power consumption, the computer has two power management modes: screen blank and sleep (standby). Screen blank state If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off.
Lenovo N22 Hardware Maintenance Manual Shutting down the computer If you are not going to use your computer for a long time, shut it down. To shut down your computer, do one of the following: • Move the cursor to the lower-left corner, and then select the Start button.
• “FRU replacement notices” on page 31 • “Removing and replacing an FRU” on page 32 • “Locations” on page 52 • “Parts list” on page 54 Specifications The following table lists the specifications of the Lenovo N22: Table 1. Specifications Feature Description Form Factor Dimensions Appr.
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Lenovo N22 Hardware Maintenance Manual Table 1. Specifications (continued) Feature Description Display Display resolution 16:9 (1,366 × 768 pixels) (LCD) Maximum display 1,366 × 768 pixels resolution on external display device LCD backlight I/O Ports USB 3.0 × 1, USB 2.0 × 2 Audio Combo audio jack ×...
Lenovo N22 Status indicators The system status indicators below show the computer status: Table 2. Status indicators AC power Indicator status Meaning adapter status The computer is in hibernation mode or turned off; The battery has more than 20% charge.
Lenovo N22 Hardware Maintenance Manual Fn key combinations The following table describes the functions of Fn key combinations. Table 3. Function key combinations Fn + PgUp: Activates the Home function. Fn + PgDn: Activates the End function.
This section presents notices related to removing and replacing parts. Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In the Lenovo computer, this problem is addressed with special nylon-coated screws that have the following characteristics: •...
Lenovo N22 Hardware Maintenance Manual Removing and replacing an FRU This section presents exploded figures with the instructions to indicate how to remove and replace the FRU. Make sure to observe the following general rules: 1. Do not attempt to service any computer unless you have been trained and certified.
Lenovo N22 1010 Base cover Figure 1. Removal steps of base cover Remove the screws . Carefully pry off the base cover and lift it up in the direction shown by arrow Step Screw (quantity) Color Torque M2.5 × 5.5 mm, flat-head, Black 2 kgf.cm...
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Lenovo N22 Hardware Maintenance Manual Note: Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, you need to apply the following labels: The following labels need to be peeled off from the old base cover and put on the new base cover.
Lenovo N22 1020 Battery pack For access, remove this FRU: • “1010 Base cover” on page 33 DANGER Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. Figure 2. Removal steps of battery pack Unplug the battery connector and remove the screws . Then remove the battery pack in the direction shown by arrow...
Lenovo N22 Hardware Maintenance Manual 1030 PCI Express Mini Card for wireless LAN For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 35 Important: The preinstalled WLAN module may only be replaced with a Lenovo approved module in order to comply with FCC and IC regulations. Refer to Table 4 “Parts list—Overall” on page 55 for Lenovo part numbers for the approved modules. Figure 3. Removal steps of PCI Express Mini Card for wireless LAN...
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Lenovo N22 Figure 3. Removal steps of PCI Express Mini Card for wireless LAN (continued) In step , unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159), or pick up the connectors with your fingers and gently unplug them in the direction shown by the arrows.
Lenovo N22 Hardware Maintenance Manual 1040 LCD unit For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 35 • “1030 PCI Express Mini Card for wireless LAN” on page 36 Figure 4.
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Lenovo N22 Figure 4. Removal steps of LCD unit (continued) Open the hinges , then remove the upper case from the LCD unit in the direction shown by arrow...
Lenovo N22 Hardware Maintenance Manual 1050 System board Important notices for handling the system board: When handling the system board, bear the following in mind. • Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite. • Avoid rough handling of any kind. • During the whole process, make sure not to drop or stack the system board. • If you put a system board down, make sure to put it only on a padded surface, such as an ESD mat or conductive corrugated material. For access, remove these FRUs in order: • “1010 Base cover” on page 33 •...
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Lenovo N22 Figure 5. Removal steps of system board(continued) When installing: Make sure that all the connectors are attached firmly Remove the system board in the direction shown by arrow...
Lenovo N22 Hardware Maintenance Manual 1060 Speakers For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 35 • “1030 PCI Express Mini Card for wireless LAN” on page 36 •...
Lenovo N22 1070 Touch pad module and IO board For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 35 • “1030 PCI Express Mini Card for wireless LAN” on page 36 •...
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Lenovo N22 Hardware Maintenance Manual Figure 7. Removal steps of touch pad module and IO board (continued) Remove the screws , then lift up and remove the touch pad module bracket. Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, Black 2 kgf.cm...
Lenovo N22 1080 LCD front bezel For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 35 • “1030 PCI Express Mini Card for wireless LAN” on page 36 • “1040 LCD unit” on page 38 •...
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Lenovo N22 Hardware Maintenance Manual Figure 8. Removal steps of LCD front bezel (continued) Remove the LCD front bezel in the direction shown by arrows...
Lenovo N22 1090 LCD panel, LCD cable, LCD bracket and hinges For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 35 • “1030 PCI Express Mini Card for wireless LAN” on page 36 •...
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Lenovo N22 Hardware Maintenance Manual Figure 9. Removal steps of LCD panel, LCD cable and hinges (continued) Turn over the LCD panel in the direction shown by arrow . Disconnect the connector When installing: Make sure that the connector is attached firmly.
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Lenovo N22 Figure 9. Removal steps of LCD panel, LCD cable and hinges (continued) Remove screws , and then remove the LCD bracket. Step Screw (quantity) Color Torque M2 x 2.5 mm, flat-head, nylok-coated(2) Black 2 kgfcm...
Lenovo N22 Hardware Maintenance Manual 1100 Swivel camera For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 35 • “1030 PCI Express Mini Card for wireless LAN” on page 36 •...
Lenovo N22 1110 Antenna assembly and LCD cover For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 35 • “1030 PCI Express Mini Card for wireless LAN” on page 36 •...
Lenovo N22 Hardware Maintenance Manual Locations Front view and right-side view Swivel camera Built-in microphone Wireless LAN antennas Computer display Power button System status indicators Note: For the description of each indicator, see “Status indicators” on page 29. Touch pad...
Lenovo N22 Hardware Maintenance Manual Parts list This section presents the following service parts: • “Overall” on page 55 • “LCD FRUs” on page 57 • “Miscellaneous parts” on page 59 • “Screw” on page 59 • “AC adapters” on page 60 •...
Lenovo N22 Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region: Table 9. Parts list—3-pin power cords Region CRU ID. 145000600 • LINETEK PC323+RVV300/300+LS15 1m Argentina 145000599 • LINETEK LS15+H03VV-F+LP39 1m...
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Lenovo N22 Hardware Maintenance Manual Table 11. Parts list—3-pin power cords (continued) Region CRU ID. Israel 145000563 • Longwell LP-41+H03VV-F+LS-18 1m 145000562 • Longwell LP-30B+SPT-2 18AWG+LS-18 1m 145000561 • Longwell LP-61L+H03VV-F+LS-18 1m Indian 145000560 • Longwell LP-67+BIS+LS-18 1m Italy 145000559 •...
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Actual results may vary. Users of this document should verify the applicable data for their specific environment. Trademarks The following terms are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. Lenovo OneKey Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both.