Lenovo N100 manual Read this first, What to do first

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General descriptions

The descriptions in this chapter apply to any Lenovo 3000 model that has the PC-Doctor®for DOS diagnostics program. Some descriptions might not apply to your particular computer.

Read this first

Before you go to the checkout guide, be sure to read this section.

Important notes

vOnly certified trained personnel should service the computer.

vBefore replacing any FRU, read the entire page on removing and replacing FRUs.

vWhen you replace FRUs, use new nylon-coated screws.

vBe extremely careful during such write operations as copying, saving, or formatting. Drives in the computer that you are servicing sequence might have been altered. If you select an incorrect drive, data or programs might be overwritten.

vReplace an FRU only with another FRU of the correct model. When you replace a FRU, make sure that the model of the machine and the FRU part number are correct by referring to the FRU parts list.

vA FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU.

vBe careful not to replace a nondefective FRU.

What to do first

When you do return a 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. Date of service

__ 3. Date on which the machine failed __ 4. Date of purchase

__ 5. Failure symptoms, error codes appearing on the display, and beep symptoms

__ 6. Procedure index and page number in which the failing FRU was detected __ 7. Failing FRU name and part number

__ 8. Machine type, model number, and serial number __ 9. Customer’s name and address

Note for warranty:

During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer.

© Copyright Lenovo 2006

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Contents Lenovo 3000 N100 Hardware Maintenance Manual Page Lenovo 3000 N100 Hardware Maintenance Manual Page Contents Iv MT 0689, 0690 Strategy for replacing FRUs Important service informationBefore replacing parts About this manualImportant notice for replacing a system board How to use error messagesStrategy for replacing a hard disk drive Using the HMM Using PC Entitlement Warehouse PEWUsing eSupport Important information about replacing RoHS compliant FRUs Diskette Compatibility Drive Capacity Safety notices multilingual translationsSafety notice Diskette compatibility matrixSafety notices Safety notices Safety notices Safety notices 10 MT 0689, 0690 Electrical safety Safety informationGeneral safety 12 MT 0689, 0690 Safety inspection guide Grounding requirements Laser compliance statement 16 MT 0689, 0690 What to do first Read this firstRead this first Following are not covered under warrantyRecovery to Factory Contents by using Product Recovery CDs Related service informationService Web site Restoring the pre-installed system How to remove the power-on password PasswordsSelect Power-On Password How to remove the hard-disk passwordSelect Master HDP Power managementScreen blank mode Standby modeHibernation mode Checkout guide Testing the computerCreating the PC-Doctor diagnostics diskette Diagnostics Interactive Tests Utility Power system checkoutDetecting system information with PC-Doctor Hardware InfoPin Voltage V dc Checking the battery packChecking operational charging Terminal Voltage V dc Lenovo 3000 N100 Product overview SpecificationsFeature Description Lenovo 3000 N100 Blinking green Status indicatorsIndicator Meaning GreenFRU tests Key combination Description Fn key combinationsNumeric error codes Symptom-to-FRU indexSoftware NMI failed System board 02F7 Fail-safe timer NMI failed System boardDMA test failed System board 02F6 Error messages No-beep symptoms Beep symptomsLCD assembly LCD-related symptomsReseat the LCD connectors SymptomsUndetermined problems Intermittent problemsRetaining serial numbers FRU replacement noticesScrew notices Select 2. Read S/N data from Eeprom Restoring the serial number of the system unitRetaining the Uuid Reading or writing the ECA informationFRU replacement notices Removing and replacing a FRU Battery pack Step Screw quantity Color Torque Hard disk drive slot coverHard disk drive PCI Express Mini Card for wireless LAN Dimm Dimm slot coverFor MT0768 Optical driveFor MT0689 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 Are only for MT 0689 For MT 0689Are only for MT 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 Step Screw cap Screw quantity Color Torque LCD front bezel B coverInverter 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 Bottom view Rear viewParts list Overall FRU CRU FRU no RoHSAstec AC adapters14.1-in. Wxga TFT LCD FRUs15.4-in. WSXGA+ TFT 15.4-in. Wxga TFTChicony Language RoHSWindows XP Professional Recovery CDsTBD Windows XP Home EditionMiscellaneous parts Bluetooth cableTool Common parts listTools Region RoHS Power cords90 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.