Instruction/ maintenance manual of the product 8253 Lenovo
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Hardw are Replacement Guide Leno v o 3000 J Series T ypes 8252, 8253, 8254, 8257, 8258, 8259.
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Le n o v o 3 000 J Ser ie s.
First Edition (December 2005) © Copyright Lenovo 2005. Portions © Copyright International Business Machines Corporation 2005. All rights reserved. U.S. GOVERNMENT USERS – RESTRICTED RIGHTS: Our products and/or services ar e provided with RESTRICTED RIGHTS.
Contents Overview . . . . . . . . . . . . . .v Safety information for replacing CRUs . . . . . .v Safety information for replacing FRUs . . . . . .v Additional information resour ces . . . . . . .v T ools required . . . . . . . . . . . . .v i Handling static-sensitive devices .
iv Hardwar e Replacement Guide.
Overview This guide is intended to be used by customers who are r eplacing Customer Replaceable Units (CRUs) as well as trained service personnel who are r eplacing Field Replaceable Units (FRUs). In this document, CRUs and FRUs will be referr ed to as parts.
T ools required To replace some parts in your computer , you might need a flat-blade or Phillips screwdriver . Additional tools might be needed for certain parts. Handling static-sensitive devices Static electricity , although harmless to you, can seriously damage computer components and parts.
Chapter 1. Locations This chapter provides illustrations to help locate the various connectors, contr ols and components of the computer . To open the computer cover , see “Removing the cover” on page 7.
Locating the connectors on the rear of your computer The following illustration shows the location of connectors on the rear of the computer . 1 Power connector 9 Ethernet connector 2.
Locating components The following illustration will help you locate the various components in your computer . 1 Micropr ocessor and heat sink 4 PCI connectors 2 Memory modules 5 PCI adapter 3 AGP connector 6 Power supply Chapter 1.
Identifying parts on the system board The system board (sometimes called the planar or motherboar d) is the main circuit board in your computer . It provides basic computer functions and supports a variety of devices. The following illustration shows the locations of parts on the system board for some models.
The following illustration shows the locations of parts on the system board for some models. 1 Micropr ocessor and heat sink 11 Front panel connector 2 Micropr ocessor fan connector .
6 Hardwar e Replacement Guide.
Chapter 2. Replacing hardware Attention Do not open your computer or attempt any repair befor e reading the “Important safety information” in the Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer .
4. Remove the two screws at the rear of the left side cover and slide the cover to the rear to r emove. Replacing a memory module Attention Do not open your computer or attempt any repair befor e read.
2. Remove the memory module being replaced by opening the retaining clips as shown. 3. Position the replacement memory module over the memory connector . Make sure that the notch 1 on the memory module aligns corr ectly with the connector key 2 on the system board.
This section provides instr uctions on how to replace a PCI adapter . 1. Remove the computer cover . See “Removing the cover” on page 7. 2. Remove screw from adapter . 3. Remove the adapter by pulling it straight out of the adapter connector . 4. Remove the new adapter from its static-protective package.
3. Locate the keyboard connector . Note: Y our keyboard might be connected to a standar d keyboard connector 1 or a USB connector 2 . Depending on where your keyboar d is connected, see “Locating the connectors on the rear of your computer” on page 2 or “Locating the connectors on the front of your computer” on page 1.
5. Connect the new mouse to the appropriate connector on the computer . 6. Go to “Completing the parts replacement.” Completing the parts replacement After working with parts, you need to replace the computer cover and r econnect any cables, including telephone lines and power cords.
Appendix. Notices Lenovo may not offer the pr oducts, services, or features discussed in this document in all countries. Consult your local Lenovo repr esentative for information on the products and services curr ently available in your area.
vary significantly . Some measurements may have been made on development-level systems and there is no guarantee that these measur ements will be the same on generally available systems. Furthermore, some measur ements may have been estimated through extrapolation.
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Part Number: 41T3793 Printed in USA (1P) P/N: 41T3793.
An important point after buying a device Lenovo 8253 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lenovo 8253 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lenovo 8253 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lenovo 8253 you will learn all the available features of the product, as well as information on its operation. The information that you get Lenovo 8253 will certainly help you make a decision on the purchase.
If you already are a holder of Lenovo 8253, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lenovo 8253.
However, one of the most important roles played by the user manual is to help in solving problems with Lenovo 8253. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lenovo 8253 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
