Lenovo N100 manual 12 MT 0689, 0690

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Safety information

Important

Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.

Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.

vFind the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.

vDo not work alone under hazardous conditions or near equipment that has hazardous voltages.

vDisconnect all power before:

Performing a mechanical inspection

Working near power supplies

Removing or installing main units

vBefore you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position.

vIf you need to work on a machine that has exposed electrical circuits, observe the following precautions:

Ensure that another person, familiar with the power-off controls, is near you.

Attention: Another person must be there to switch off the power, if necessary.

Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back.

Attention: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body.

When using testers, set the controls correctly and use the approved probe leads and accessories for that tester.

Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames.

Observe the special safety precautions when you work with very high voltages; Instructions for these precautions are in the safety sections of maintenance information. Use extreme care when measuring high voltages.

vRegularly inspect and maintain your electrical hand tools for safe operational condition.

vDo not use worn or broken tools and testers.

vNever assume that power has been disconnected from a circuit. First, check that it has been powered off.

vAlways 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.

vDo not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage.

12MT 0689, 0690, 0768

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Contents Lenovo 3000 N100 Hardware Maintenance Manual Page Lenovo 3000 N100 Hardware Maintenance Manual Page Contents Iv MT 0689, 0690 About this manual Important service informationBefore replacing parts Strategy for replacing FRUsHow to use error messages Strategy for replacing a hard disk driveImportant notice for replacing a system board Using PC Entitlement Warehouse PEW Using eSupportUsing the HMM Important information about replacing RoHS compliant FRUs Diskette compatibility matrix Safety notices multilingual translationsSafety notice Diskette Compatibility Drive CapacitySafety notices Safety notices Safety notices Safety notices 10 MT 0689, 0690 Safety information General safetyElectrical safety 12 MT 0689, 0690 Safety inspection guide Grounding requirements Laser compliance statement 16 MT 0689, 0690 Read this first What to do firstFollowing are not covered under warranty Read this firstRelated service information Service Web site Restoring the pre-installed systemRecovery to Factory Contents by using Product Recovery CDs Passwords How to remove the power-on passwordHow to remove the hard-disk password Select Power-On PasswordStandby mode Power managementScreen blank mode Select Master HDPHibernation mode Testing the computer Creating the PC-Doctor diagnostics disketteCheckout guide Diagnostics Interactive Tests Hardware Info Power system checkoutDetecting system information with PC-Doctor UtilityChecking the battery pack Checking operational chargingPin Voltage V dc Terminal Voltage V dc Lenovo 3000 N100 Specifications Feature DescriptionProduct overview Lenovo 3000 N100 Green Status indicatorsIndicator Meaning Blinking greenFRU tests Fn key combinations Key combination DescriptionSymptom-to-FRU index Numeric error codesFail-safe timer NMI failed System board DMA test failed System board 02F6Software NMI failed System board 02F7 Error messages Beep symptoms No-beep symptomsSymptoms LCD-related symptomsReseat the LCD connectors LCD assemblyIntermittent problems Undetermined problemsFRU replacement notices Screw noticesRetaining serial numbers Reading or writing the ECA information Restoring the serial number of the system unitRetaining the Uuid Select 2. Read S/N data from EepromFRU replacement notices Removing and replacing a FRU Battery pack Hard disk drive slot cover Hard disk driveStep Screw quantity Color Torque PCI Express Mini Card for wireless LAN Dimm slot cover DimmOptical drive For MT0689For MT0768 Thermal module slot cover and fan Thermal module 52 MT 0689, 0690 1100 CPU Cover, strip E cover Keyboard 56 MT 0689, 0690 Function board LCD unit Removing and replacing a FRU 60 MT 0689, 0690 M2.5 × 6 mm, flat-head, nylon-coated Black 392 Nm Kgfcm For MT 0689 Are only for MT 0689For MT Are only for MT64 MT 0689, 0690 M2 × 4 mm, flat-head, nylon-coated Black 245 Nm Kgfcm 1160 USB/Audio connector card VGA connector card 68 MT 0689, 0690 M2.5 × 3 mm, flat-head, nylon-coated Black 392 Nm Kgfcm To remove the MDC, do as follows LCD front bezel B cover Step Screw cap Screw quantity Color TorqueInverter card LCD panel, LCD cable, and hinges Remove the hinges from the LCD panel Are only for MT0768 Camera and LCD rear cover assembly a cover Locations Front view Rear view Bottom viewParts list Overall FRU FRU no RoHS CRUAC adapters AstecLCD FRUs 14.1-in. Wxga TFT15.4-in. Wxga TFT 15.4-in. WSXGA+ TFTLanguage RoHS ChiconyRecovery CDs Windows XP ProfessionalWindows XP Home Edition TBDBluetooth cable Miscellaneous partsCommon parts list ToolsTool Power cords Region RoHS90 MT 0689, 0690 Trademarks Part Number 41W7535
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N100 specifications

The Lenovo N100 is a budget-friendly laptop that embodies practicality without sacrificing essential performance features. Designed for students and professionals alike, it combines mobility with reliability, making it a suitable choice for everyday computing tasks.

One of the standout features of the Lenovo N100 is its efficient Intel processor. Depending on the specific configuration, users can expect either the Intel Celeron or Pentium M processors, providing sufficient power for basic applications, web browsing, and productivity software. The laptop is equipped with up to 1GB of RAM, ensuring smooth multitasking capabilities for users working on several applications simultaneously.

In terms of storage, the N100 includes options that range from 40GB to 80GB hard drives. This capacity caters well to the needs of users who require ample storage for documents, media, and various software applications. The integrated CD/DVD drive further enhances its versatility, enabling users to read and write discs, which is particularly useful for those who rely on physical media.

The Lenovo N100 features a 14-inch display with a resolution of 1280x800 pixels, providing a decent viewing experience for its size. The screen's size strikes a good balance between portability and usability, making it easy to work on for extended periods without straining the eyes. Additionally, the inbuilt Intel Graphics Media Accelerator 900 offers sufficient graphical performance for light gaming and multimedia tasks.

Connectivity options on the Lenovo N100 include several USB 2.0 ports, an Ethernet port, and a VGA output, which allow for connecting various peripherals and external displays. The laptop also includes a 56K modem, making it adaptable to older connectivity setups. Integration of Wi-Fi support provides users the freedom to connect to wireless networks, enhancing functionality for both home and office use.

Another significant characteristic of the N100 is its durable design. While its aesthetics may be straightforward, the solid build quality ensures that it withstands the rigors of daily use. This toughness is complemented by a battery life that can last several hours, allowing users the flexibility to work on the go without the constant need for a power outlet.

In conclusion, the Lenovo N100 stands out as a reliable and affordable laptop option, equipped with essential features that cater to basic computing needs. Its combination of performance, storage, and connectivity makes it a practical choice for users looking for value and reliability in their laptop purchase.