Lenovo N200 manual FRU replacement notices, Screw notices, Retaining serial numbers

Page 47

FRU replacement notices

FRU replacement notices

This section contains 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 3000 computer, this problem is addressed with special nylon-coated screws that have the following characteristics:

vThey maintain tight connections.

vThey do not easily come loose, even with shock or vibration.

vThey are harder to tighten.

vEach one should be used only once.

Do the following when you service this machine:

vKeep the screw kit (for the P/N, see “Miscellaneous parts” on page 95) in your tool bag.

vAlways use new screws.

vUse a torque screwdriver if you have one.

Tighten screws as follows:

vPlastic to plastic

Turn an additional 90 degrees after the screw head touches the surface of the plastic part:

90 degrees more

(Cross-section)

vLogic card to plastic

Turn an additional 180 degrees after the screw head touches the surface of the logic card:

180 degrees more

(Cross-section)

vTorque driver

If you have a torque driver, refer to the “Torque” column for each step.

vMake sure that you use the correct screw. If you have a torque screwdriver, tighten all screws firmly to the torque shown in the table. Never use a screw that you removed. Use a new one. Make sure that all of the screws are tightened firmly.

vEnsure torque screwdrivers are calibrated correctly following country specifications.

Retaining serial numbers

This section includes the following descriptions:

v“Restoring the serial number of the system unit” on page 42

Lenovo 3000 N200 41

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Contents Lenovo 3000 N200 Hardware Maintenance Manual Page Lenovo 3000 N200 Hardware Maintenance Manual First Edition May Copyright Lenovo 2007. All rights reserved Contents Iv MT 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 Electrical safety Safety informationGeneral safety 12 MT Safety inspection guide Grounding requirements Laser compliance statement 16 MT What to do first Read this firstRead this first Following are not covered under warrantyRelated service information Power-on password PasswordsSelect Master HDP How to remove the power-on passwordHow to remove the hard-disk password Select Power-On Password*1Hibernation mode Power managementScreen blank mode Sleep standby modeRelated service information 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 the ac adapter Checking operational chargingTerminal Voltage V dc Lenovo 3000 N200 Product overview Product overview Feature DescriptionGreen Status indicatorsIndicator Meaning FRU 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 Reseat Dimm No-beep symptomsMake sure that every connector is Connected tightly and correctlyLCD 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 Hard disk drive Hard disk drive slot coverDimm slot cover Dimm Step Screw quantity Color Torque PCI Express Mini Card for 802.11 a/b/g wireless LANPCI Express Mini Card for 802.11 a/b/g/n wireless LAN Optical drive Heat sink assembly slot cover Heat sink assembly 54 MT 1110 CPU Middle cover and function board For access, remove this FRU Battery pack onM2 × 3 mm, pan-head, nylon-coated Black 392 Nm Kgfcm Keyboard When installing Keyboard bezel and fingerprint reader card Removing and replacing a FRU 62 MT Removing and replacing a FRU Backup battery Modem daughter card MDC Bluetooth daughter card BDC LCD unit 68 MT M2.5 × 6 mm, pan-head, nylon-coated Dark silver 392 Nm Kgfcm To remove the 5-1 Digital Media Reader board, do as follows To remove the ExpressCard slot, do as follows Step Screw cap Screw quantity Color Torque LCD front bezelInverter card LCD panel, LCD cable, and hinges Remove the hinges from the LCD panel Camera and LCD rear cover assembly For the antennas with two cables Wireless LAN antenna cablesFor the antennas with three cables Locations Front view Bottom view Rear viewExternal CRUs with latches Parts listInternal CRUs located behind an access panel External CRUs pluggableOverall FRU CRU FRU no RoHSParts list Hlds LCD front bezel 41R7520 LCD FRUs14.1-in. Wxga TFT CMO Chicony Language RoHSRecovery discs Windows Vista Home Premium 32 bit DVDs Recovery discsWindows Vista Home Basic 32 bit DVDs Windows Vista Business 32 bit DVDs Windows Vista Ultimate 32 bit DVDs AC adapters Corel software CDsTool Common parts listMiscellaneous parts ToolsLongwell Power cordsRegion Volex RoHS Lenovo 3000 N200 Trademarks Trademarks Part Number
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N200 specifications

The Lenovo N200 is a versatile laptop designed to cater to the needs of both professionals and students looking for a reliable computing solution. This model stands out in the competitive laptop market thanks to its blend of performance, durability, and affordability.

One of the main features of the Lenovo N200 is its robust build quality. Using high-quality materials, this laptop can withstand the rigors of daily use, making it an excellent choice for those who travel frequently or require a device that can handle day-to-day wear and tear. The sleek design not only gives it a modern aesthetic but also enhances portability, weighing in at an acceptable range that allows users to carry it with ease.

When it comes to performance, the Lenovo N200 typically comes equipped with Intel Core processors, providing sufficient power for multitasking and demanding applications. This makes it suitable for professional tasks, including data processing, graphic design, and even light gaming. The system’s RAM capacity generally ranges from 4GB to 8GB, which allows for smooth performance when running multiple applications simultaneously.

The display of the N200 is another noteworthy feature. It usually sports a 15.6-inch HD screen, providing crisp visuals and vibrant colors for an enjoyable viewing experience, whether you are watching videos, working on projects, or browsing the web. The anti-glare technology applied to the display also helps reduce eye strain during extended use, proving beneficial for students and professionals alike.

In terms of storage, users can expect a decent HDD or SSD option that offers enough space for documents, media, and software applications. The SSD option typically ensures faster boot-up times and quicker file access, enhancing overall system responsiveness.

Connectivity is not overlooked in the Lenovo N200, which comes with various ports, including USB, HDMI, and Ethernet, enabling users to connect their devices with ease. Wireless capabilities typically include Wi-Fi and Bluetooth, facilitating seamless connectivity to the internet and other devices.

Overall, the Lenovo N200 encapsulates the essential features and technologies that users seek in a dependable laptop. With its blend of performance, build quality, and modern features, it serves as an excellent entry-level option for those looking to balance quality with budget considerations.
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