Lenovo MT 6470 Service Manual

ThinkPad
®
Z61e, Z61m, and Z61p
Hardw are
Maintenance Manual
October 2007
(MT 0660, 0672, 0673, 0674, 0675, 9450, 9451, 9452, and 9453)
ThinkPad
®
Z61e, Z61m, and Z61p
Hardw are
Maintenance Manual
Note
Before using this information and the product it supports, be sure to read the general information under “Notices” on page
168.
Third Edition (October 2007) © Copyright Lenovo 2006, 2007. All rights reserved.
LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101 with limited and restricted rights to use, reproduction and disclosure.
LIMITED AND RESTRICTED RIGHTS NOTICE: If products, data, computer software, or services are delivered pursuant a General Services Administration GSAcontract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.

Contents

About this manual . . . . . . . . . .1
Introduction . . . . . . . . . . . . .3
Important service information . . . . . . . .3
Strategy for replacing FRUs . . . . . . . . .3
Strategy for replacing a hard disk drive . . . .4
Important notice for replacing a system board . .4
How to use error messages . . . . . . . .4
Strategy for replacing FRUs for CTO, CMV, and GAV 4
Product definition . . . . . . . . . . .4
FRU identification for CTO, CMV, and GAV
products . . . . . . . . . . . . . . .5
Important information about replacing RoHS
compliant FRUs . . . . . . . . . . . . .6
Diskette compatibility matrix . . . . . . . . .7
Safety notices: multilingual translations . . . . .7
Safety information . . . . . . . . . . . .13
General safety . . . . . . . . . . . .13
Electrical safety . . . . . . . . . . . .13
Safety inspection guide . . . . . . . . .15
Handling devices that are sensitive to
electrostatic discharge . . . . . . . . . .16
Grounding requirements . . . . . . . . .16
Laser compliance statement . . . . . . . . .17
General descriptions . . . . . . . . .19
Read this first . . . . . . . . . . . . .19
What to do first . . . . . . . . . . . .19
Related service information . . . . . . . . .21
Service We b site . . . . . . . . . . . .21
Restoring the factory contents by using Product
Recovery discs . . . . . . . . . . . .21
Passwords . . . . . . . . . . . . . .22
Power management . . . . . . . . . .24
Checkout guide . . . . . . . . . . . . .27
Testing the computer . . . . . . . . . .27
Detecting system information with PC-Doctor . .29
Power system checkout . . . . . . . . .30
ThinkPad Z61e, Z61m, and Z61p . . . .33
Product overview . . . . . . . . . . . .34
Specifications . . . . . . . . . . . . .34
Status indicators . . . . . . . . . . . .37
FRU tests . . . . . . . . . . . . . .40
Fn key combinations . . . . . . . . . .42
Symptom-to-FRU index . . . . . . . . . .45
Numeric error codes . . . . . . . . . .45
Error messages . . . . . . . . . . . .50
Beep symptoms . . . . . . . . . . . .51
No-beep symptoms . . . . . . . . . . .51
LCD-related symptoms . . . . . . . . .51
Intermittent problems . . . . . . . . . .53
Undetermined problems . . . . . . . . .53
FRU replacement notices . . . . . . . . . .54
Screw notices . . . . . . . . . . . . .54
Retaining serial numbers . . . . . . . . .54
Removing and replacing a FRU . . . . . . . .57
1010 Battery pack . . . . . . . . . . .58
1020 Ultrabay Enhanced device (for Z61m and
Z61p) . . . . . . . . . . . . . . .59
1030 Optical drive (for Z61e) . . . . . . .60
1040 Hard disk drive cover, hard disk drive, and
hard disk drive rubber rails . . . . . . . .62
1050 SIM card . . . . . . . . . . . .64
1060 Palm rest or palm rest with fingerprint
reader . . . . . . . . . . . . . . .65
1070 DIMM . . . . . . . . . . . . .69
1080 Keyboard . . . . . . . . . . . .70
1090 Modem daughter card (MDC-1.5) . . . .72
1100 PCI Express Mini Card for wireless LAN . .74 1110 PCI Express Mini Card for 802.11 a/b/g/n
wireless LAN . . . . . . . . . . . . .75
1120 PCI Express Mini card for wireless WA N . .76
1130 SIM card slot . . . . . . . . . . .77
1140 Backup battery . . . . . . . . . .78
1150 Wireless WA N antenna cable (DIV) . . . .79
1160 Keyboard bezel assembly with speaker . .81
1170 Fan assembly . . . . . . . . . . .83
1180 CPU . . . . . . . . . . . . . .86
1190 LCD assembly . . . . . . . . . . .87
1200 Base cover . . . . . . . . . . . .90
1210 USB sub card with cable . . . . . . .93
1220 Magnesium frame with xD sub card . . .94 1230 System board and PC Card/ExpressCard
slots assembly . . . . . . . . . . . .97
2010 LCD front bezel . . . . . . . . . . 100
2020 Inverter card . . . . . . . . . . . 102
2030 Bluetooth daughter card (BDC-2) . . . . 103
2040 Wireless WA N antenna cable (MAIN) or
wireless LAN 3rd antenna cable . . . . . . 105
2050 Integrated camera . . . . . . . . . 107
2060 LCD panel, LCD cable, and hinges . . . 108 2060 LCD rear cover and wireless LAN antenna
cables . . . . . . . . . . . . . . . 111
Locations . . . . . . . . . . . . . . .116
Front view . . . . . . . . . . . . .116
Rear view . . . . . . . . . . . . .117
Bottom view . . . . . . . . . . . . .118
Parts list . . . . . . . . . . . . . . .119
Overall . . . . . . . . . . . . . .119
LCD FRUs . . . . . . . . . . . . . 141
Keyboard . . . . . . . . . . . . . . 159
Recovery discs . . . . . . . . . . . . 160
Miscellaneous parts . . . . . . . . . . 164
AC adapters . . . . . . . . . . . . . 166
Common parts list . . . . . . . . . . . 166
Notices . . . . . . . . . . . . . . . 168
Trademarks . . . . . . . . . . . . . . 169
© Copyright Lenovo 2006, 2007 iii
iv MT 0660, 0672, 0673, 0674, 0675, 9450, 9451, 9452, and 9453

About this manual

This manual contains service and reference information for ThinkPad® Z61e, Z61m, and Z61p (MT 0660, 0672, 0673, 0674, 0675, 9450, 9451, 9452, and 9453) products. Use this manual along with the advanced diagnostic tests to troubleshoot problems.
The manual is divided into sections as follows:
v The common sections provide general information, guidelines, and safety
information required in servicing computers.
v The product-specific section includes service, reference, and product-specific
parts information.
Important
This manual is intended for trained service personnel who are familiar with ThinkPad products. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.
Before servicing a ThinkPad product, be sure to review the safety information under “Safety notices: multilingual translations” on page 7, “Safety information” on page 13, and “Laser compliance statement” on page 17.
© Copyright Lenovo 2006, 2007 1
2 MT 0660, 0672, 0673, 0674, 0675, 9450, 9451, 9452, and 9453

Introduction

Important service information

Important
BIOS and device driver fixes are customer-installable. The BIOS and device drivers are posted on the customer support site http://www.lenovo.com/
support
Advise customers to contact the Customer Support Center at 800-426-7378 if they need assistance in obtaining or installing any software fixes, drivers, and BIOS downloads.
Customers in Canada should call the Customer Support Center at 800-565-3344 for assistance or download information.

Strategy for replacing FRUs

Before replacing parts
Make sure that all software fixes, drivers, and BIOS downloads are installed before replacing any FRUs listed in this manual.
After a system board is replaced, ensure that the latest BIOS is loaded to the system board before completing the service action.
To download software fixes, drivers, and BIOS, do as follows:
1. Go to http://www.lenovo.com/support
2. Enter the product number of the computer or press Auto-detect button on
the screen.
3. Select Downloads and drivers.
4. Follow the directions on the screen and install the necessary software.
Use the following strategy to prevent unnecessary expense for replacing and
servicing FRUs:
v If you are instructed to replace a FRU but the replacement does not correct the
problem, reinstall the original FRU before you continue.
v Some computers have both a processor board and a system board. If you are
instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one.
v If an adapter or a device consists of more than one FRU, any of the FRUs may
be the cause of the error. Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms.
© Copyright Lenovo 2006, 2007 3
Important service information
Attention: The setup configuration on the computer you are servicing may have been customized. Running Automatic Configuration may alter the settings. Note the current configuration settings (using the View Configuration option); then, when service has been completed, verify that those settings remain in effect.

Strategy for replacing a hard disk drive

Always try to run a low-level format before replacing a hard disk drive. This will cause all customer data on the hard disk to be lost. Be sure that the customer has a current backup of the data before doing this task.
Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten.

Important notice for replacing a system board

Some components mounted on a system board are very sensitive. Improper handling of a system board can cause damage to those components, and may cause a system malfunction.
Attention: When handling a system board:
v Do not drop a system board or apply any excessive force to it.
v Avoid rough handling of any kind.
v Avoid bending a system board and hard pushing to prevent cracking at each
BGA (Ball Grid Array) chipset.

How to use error messages

Use the error codes displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code. Whatever causes the first error code may also cause false error codes. If no error code is displayed, see whether the error symptom is listed in the Symptom-to-FRU Index for the computer you are servicing.

Strategy for replacing FRUs for CTO, CMV, and GAV

Product definition

Dynamic Configure To Order (CTO)
This provides the ability for a customer to configure an IBM® or a Lenovo solution from an eSite, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label, Product Entitlement Warehouse (PEW), eSupport, and the HMM will load these products as the 4-digit MT and 3-digit model, where model = “CTO” (Example: 1829-CTO).
Custom Model Variant (CMV)
is a unique configuration that has been negotiated between IBM or Lenovo
This and the customer. A unique 4-digit MT and 3-digit model is provided to the customer to place orders (Example: 1829-W15). A CMV is a special bid offering. Therefore, it is NOT generally announced.
v The MTM portion of the machine label is the 4-digit MT and 3-digit model,
where model = “CTO” (Example: 1829-CTO). The PRODUCT ID portion of the machine label is the 4-digit MT and 3-digit CMV model (Example: 1829-W15).
TM
4 MT 0660, 0672, 0673, 0674, 0675, 9450, 9451, 9452, and 9453
Important service information
v The PEW record is the 4-digit MT and 3-digit model, where model = “CTO”
(Example: 1829-CTO).
v eSupport will show both the CTO and CMV machine type models (Example:
1829-CTO and 1829-W15 will be found on the eSupport site.)
v The HMM will have the 4-digit MT and 3-digit CTO model only (Example:
1829-CTO). Again, CMVs are custom models and are not found in the HMM.
General
This
Announce Variant (GAV)
is a standard model (fixed configuration). GAVs are announced and offered to
all customers. The MTM portion of the machine label is a 4-digit MT and 3-digit model, where model = a “fixed part number”, not “CTO” (Example: 1829-F1U). Also, PEW, eSupport, and the HMM will list these products under the same fixed model number.

FRU identification for CTO, CMV, and GAV products

There are three information resources to identify which FRUs are used to support CTO, CMV, and GAV products. These sources are PEW, eSupport, and the HMM.
Using PEW
v PEW is the primary source for identifying FRU part numbers and FRU
descriptions for the key commodities for CTO, CMV and GAV products at a MT
- serial number level. An example of key commodities are hard disk drives, system boards, microprocessors, Liquid Crystal Displays (LCDs), and memory.
v Remember, all CTO and CMV products are loaded in PEW under the 4-digit MT
and 3-digit model, where model = “CTO” (Example: 1829-CTO). GAVs are loaded in PEW under the 4-digit MT and 3-digit model, where model = a “fixed part number”, not “CTO” (Example: 1829-F1U).
v PEW can be accessed at the following Web site:
http://w3-3.ibm.com/pc/entitle
Customers can also access PEW via
http://www-307.ibm.com/pc/support/site.wss/product.do?template=/warranty/ warranty.vm&sitestyle=lenovo
Warranty lookup. Input the MT and the Serial number and the list of key
Select commodities will be returned in the PEW record under COMPONENT INFORMATION.
v Business Partners using Eclaim will access PEW when performing Entitlement
Lookup. Business Partners will enter Loc ID, MT and Serial, and the key commodities will be returned in the Eclaim record under SYSTEM DETAILS.
v Authorized IBM Business Partners can access Eclaim at the following We b site:
https://wca.eclaim.com
Using eSupport
For Key Commodities (Examples - hard disk drive, system board, microprocessor, LCD, and memory)
v eSupport can be used to view the list of key commodities built in a particular
machine serial (this is the same record found in PEW).
v eSupport can be accessed at the following Web site: http://www.lenovo.com/
support
v To view the key commodities, click on PA RT S INFORMATION, then PAR TS
LOOKUP. Type in the model type and serial number. The key commodities will be returned in the eSupport record under PA RT S SHIPPED WITH YOUR SYSTEM.
Introduction 5
Important service information
For the Remaining FRUs (the complete list of FRUs at the MT Model level)
v eSupport can be used to view the complete list of FRUs for a machine type and
model.
v To view the complete list of FRUs, type in the machine type and model
(Example: 1829-CTO) under QUICK PATH. Under “View by Document Type” select PA RTS INFORMATION. Under “Filter by Category” select SERVICE PARTS. Under “Parts Information by Date” select SYSTEM SERVICE PARTS. The list of service parts by description, with applicable machine type model and FRU will be displayed.
Using the HMM
Use the HMM as a back-up to PEW and eSupport to view the complete list of FRUs at the MT Model level.

Important information about replacing RoHS compliant FRUs

RoHS, The Restriction of Hazardous Substances in Electrical and Electronic Equipment Directive (2002/95/EC) is a European Union legal requirement affecting the global electronics industry. RoHS requirements must be implemented on Lenovo products placed on the market and sold in the European Union after June 2006. Products on the market before June 2006 are not required to have RoHS compliant parts. If the original FRU parts are non compliant, replacement parts can also be non compliant. In all cases if the original FRU parts are RoHS compliant the replacement part must also be RoHS compliant.
Note: RoHS and non-RoHS FRU part numbers with the same fit and function are
identified with unique FRU part numbers.
Lenovo plans to transition 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. The following statement pertains to these products and any product Lenovo produces containing RoHS compliant FRUs.
RoHS compliant FRUs have unique FRU part numbers. Before or after the RoHS implementation date, failed RoHS compliant parts must always be replaced using RoHS compliant FRUs, so only the FRUs identified as compliant in the system HMM or direct substitutions for those FRUs may be used.
Products marketed before June 2006 Products marketed after June 2006 Current or original
part
Non-RoHS Can be Non-RoHS Must be RoHS Must be RoHS
Non-RoHS Can be RoHS
Non-RoHS Can sub to RoHS
RoHS Must be RoHS
Replacement FRU Current or original
part
Replacement FRU
Note: A direct substitution is a part with a different FRU part number that is
automatically shipped by the distribution center at the time of the order.
6 MT 0660, 0672, 0673, 0674, 0675, 9450, 9451, 9452, and 9453

Diskette compatibility matrix

The compatibility of each of the drives with the diskettes for it is as follows:
Diskette compatibility matrix
Diskette
drive
3.5-inch 1.0 MB Read and write

Safety notices: multilingual translations

In this manual, safety notices appear in English with a page number reference to the appropriate multilingual, translated safety notice found in this section.
The following safety notices are provided in English, French, German, Hebrew, Italian, 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. Metallic parts or metal flakes can cause electrical shorts.
Avant de remettre l’ordinateur sous tension après remplacement d’une unité en clientèle, vérifiez que tous les ressorts, vis et autres pièces sont bien en place et bien fixées. Pour ce faire, secouez l’unité et assurez-vous qu’aucun bruit suspect ne se produit. Des pièces métalliques ou des copeaux de métal pourraient causer un court-circuit.
Diskette
Compatibility
capacity
2.0 MB Read and write
4.0 MB Not compatible
Bevor nach einem FRU-Austausch der Computer wieder angeschlossen wird, muß sichergestellt werden, daß keine Schrauben, Federn oder andere Kleinteile fehlen oder im Gehäuse vergessen wurden. Der Computer muß geschüttelt und auf Klappergeräusche geprüft werden. Metallteile oder-splitter können Kurzschlüsse erzeugen.
Prima di accendere l’elaboratore dopo che é stata effettuata la sostituzione di una FRU, accertarsi che tutte le viti, le molle e tutte le altri parti di piccole dimensioni siano nella corretta posizione e non siano sparse all’interno dell’elaboratore. Verificare ciò scuotendo l’elaboratore e prestando attenzione ad eventuali rumori; eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi.
Antes de encender el sistema despues de sustituir una FRU, compruebe que todos los tornillos, muelles y demás piezas pequeñas se encuentran en su sitio y no se encuentran sueltas dentro del sistema. Compruébelo agitando el sistema y escuchando los posibles ruidos que provocarían. Las piezas metálicas pueden causar cortocircuitos eléctricos.
Introduction 7
Safety notices
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 réglementation en vigueur. Lorsque vous remplacez la pile de sauvegarde ou celle de l’horloge temps réel, veillez à n’utiliser que les modèles cités dans la liste de pièces détachées adéquate. Une batterie ou une pile inappropriée risque de prendre feu ou d’exploser.
Die Bereitschaftsbatterie, die sich unter dem Diskettenlaufwerk befindet, kann geringe Mengen Nickel und Cadmium enthalten. Sie darf nur durch die Verkaufsstelle oder den IBM Kundendienst ausgetauscht werden. Sie darf nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Die Batterie kann schwere Verbrennungen oder Verätzungen verursachen. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Bereitschafts-oder Systembatterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen.
Alcune batterie di riserva contengono una piccola quantità di nichel e cadmio. Non smontarle, ricaricarle, gettarle nel fuoco o nell’acqua né cortocircuitarle. Smaltirle secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria dell’RTC (real time clock) o la batteria di supporto, 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.
Algunas baterías de reserva contienen una pequeña cantidad de níquel y cadmio. 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 piezas. La utilización de una batería no apropiada puede provocar la ignición o explosión de la misma.
8 MT 0660, 0672, 0673, 0674, 0675, 9450, 9451, 9452, and 9453
Safety notices
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 piezas al sustituir la batería. La utilización de una batería no apropiada puede provocar la ignición o explosión de la misma.
Introduction 9
Safety notices
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 supérieure à 100°C, ne la faites pas brûler et n’en exposez pas le contenu à l’eau. Mettez la pile au rebut conformément à la réglementation en vigueur. Une pile inappropriée risque de prendre feu ou d’exploser.
Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden, explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses Typs dürfen nicht aufgeladen, zerlegt, über 100 C erhitzt oder verbrannt werden. Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt 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 di supporto e una batteria al litio e puo incendiarsi, esplodere o procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato, smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi, incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). L’impiego di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa.
La batería de repuesto es una batería de litio y puede provocar incendios, explosiones o quemaduras graves. No la recargue, ni quite el conector polarizado, ni la desmonte, ni caliente por encima de los 100°C (212°F), ni la incinere ni exponga el contenido de sus celdas al agua. Deséchela tal como dispone la normativa local.
10 MT 0660, 0672, 0673, 0674, 0675, 9450, 9451, 9452, and 9453
Safety notices
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 for at least 15 minutes. Seek medical care if any symptoms from 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.
Nel caso che caso l’LCD si dovesse rompere ed il liquido in esso contenuto entrasse in contatto con gli occhi o le mani, lavare immediatamente le parti interessate con acqua corrente per almeno 15 minuti; poi consultare un medico se i sintomi dovessero permanere.
Si la LCD se rompe y el fluido de su interior entra en contacto con sus ojos o sus manos, lave inmediatamente las áreas afectadas con agua durante 15 minutos como mínimo. Obtenga atención medica si se presenta algún síntoma del fluido despues de lavarse.
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.
Introduction 11
Safety notices
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 entzünden oder Verletzungen bei Personen hervorzurufen.
Sebbene le batterie di alimentazione siano a basso voltaggio, una batteria in corto circuito o a massa può fornire corrente sufficiente da bruciare materiali combustibili o provocare ustioni ai tecnici di manutenzione.
Aunque las baterías principales tienen un voltaje bajo, una batería cortocircuitada o con contacto a tierra puede producir la corriente suficiente como para quemar material combustible o provocar quemaduras en el personal.
Safety notice 8
DANGER
Before removing any FRU, power 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.
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Safety information

The following section presents safety information with which you need to be familiar before you service a ThinkPad computer.

General safety

Follow these rules to ensure general safety:
v Observe good housekeeping in the area of the machines during and after
maintenance.
v When lifting any heavy object:
1. Make sure that you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt to
4. Lift by standing or by pushing up with your leg muscles; this action removes
Do not perform any action that causes hazards to the customer, or that makes
v
the equipment unsafe.
v Before you start the machine, make sure that other service representatives and
the customer’s personnel are not in a hazardous position.
v Place removed covers and other parts in a safe place, away from all personnel,
while you are servicing the machine.
v Keep your toolcase away from walk areas so that other people will not trip over
it.
v Do not wear loose clothing that can be trapped in the moving parts of a
machine. Make sure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
v Insert the ends of your necktie or scarf inside clothing or fasten it with a
nonconductive clip, about 8 centimeters (3 inches) from the end.
v Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your
clothing. Attention: Metal objects are good electrical conductors.
v Wear safety glasses when you are hammering, drilling, soldering, cutting wire,
attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.
v After service, reinstall all safety shields, guards, labels, and ground wires.
Replace any safety device that is worn or defective.
v Reinstall all covers correctly before returning the machine to the customer.
v Fan louvers on the machine help to prevent overheating of internal components.
Do not obstruct fan louvers or cover them with labels or stickers.
Safety information
lift.
the strain from the muscles in your back. Do not attempt to lift any object that
weighs more than 16 kg (35 lb) or that you think is too heavy for you.

Electrical safety

Observe the following rules when working on electrical equipment.
Introduction 13
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.
v Find 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.
v Do not work alone under hazardous conditions or near equipment that has
hazardous voltages.
v Disconnect all power before:
– Performing a mechanical inspection – Working near power supplies – Removing or installing Field Replaceable Units (FRUs)
Before you start to work on the machine, unplug the power cord. If you cannot
v
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.
v If 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.
v Regularly inspect and maintain your electrical hand tools for safe operational
condition.
v Do not use worn or broken tools and testers.
v Never assume that power has been disconnected from a circuit. First, check that it
has been powered off.
v 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.
v Do 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.
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Safety information
v Do not service the following parts with the power on when they are removed
from their normal operating places in a machine: – Power supply units – Pumps – Blowers and fans – Motor generators
and similar units. (This practice ensures correct grounding of the units.)
v If an electrical accident occurs:
– Use caution; do not become a victim yourself. – Switch off power. – Send another person to get medical aid.

Safety inspection guide

The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. Yo u should use good judgment to identify potential safety hazards due to attachment of non-ThinkPad features or options not covered by this inspection guide.
If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem.
Consider these conditions and the safety hazards they present:
v Electrical hazards, especially primary power (primary voltage on the frame can
cause serious or fatal electrical shock)
v Explosive hazards, such as a damaged CRT face or a bulging capacitor
v Mechanical hazards, such as loose or missing hardware
determine whether there are any potentially unsafe conditions, use the
To following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or sharp edges).
2. Power off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector in good condition. Use a meter to measure
third-wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground.
b. The power cord should be the type specified in the parts list.
c. Insulation must not be frayed or worn.
4. Check for cracked or bulging batteries.
5. Remove the cover.
6. Check for any obvious non-ThinkPad alterations. Use good judgment as to the
safety of any non-ThinkPad 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.
8. Check for worn, frayed, or pinched cables.
Introduction 15
Safety information

Handling devices that are sensitive to electrostatic discharge

9. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.
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.
Notes
1. Use product-specific ESD procedures when they exceed the requirements noted here.
2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.
When handling ESD-sensitive parts:
v Keep the parts in protective packages until they are inserted into the product.
v Avoid contact with other people while handling the part.
v Wear a grounded wrist strap against your skin to eliminate static on your body.
v Prevent the part from touching your clothing. Most clothing is insulative and
retains a charge even when you are wearing a wrist strap.
v Use the black side of a grounded work mat to provide a static-free work surface.
The mat is especially useful when handling ESD-sensitive devices.
v Select a grounding system, such as those listed below, to provide protection that
meets the specific service requirement.
Note
The use of a grounding system to guard against ESD damage is desirable but not necessary.
– Attach the ESD ground clip to any frame ground, ground braid, or green-wire
ground.
– When working on a double-insulated or battery-operated system, use an ESD
common ground or reference point. Yo u can use coax or connector-outside shells on these systems.
– Use the round ground prong of the ac plug on ac-operated computers.

Grounding requirements

Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.
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Laser compliance statement

Some models of ThinkPad 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. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewhere, the drive is certified to conform to the requirements of the International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products.
If a CD-ROM drive, a DVD-ROM drive, or another laser device is installed, note the following:
CAUTION:
Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure.
O uso de controles, ajustes ou desempenho de procedimentos diferentes daqueles aqui especificados pode resultar em perigosa exposição à radiação.
Laser compliance statement
Pour éviter tout risque d’exposition au rayon laser, respectez les consignes de réglage et d’utilisation des commandes, ainsi que les procédures décrites.
Werden Steuer- und Einstellelemente anders als hier festgesetzt verwendet, kann gefährliche Laserstrahlung auftreten.
L’utilizzo di controlli, regolazioni o l’esecuzione di procedure diverse da quelle specificate possono provocare l’esposizione a.
El uso de controles o ajustes o la ejecución de procedimientos distintos de los aquí especificados puede provocar la exposición a radiaciones peligrosas.
Opening the CD-ROM drive, the DVD-ROM drive, or any other optical storage device could result in exposure to hazardous laser radiation. There are no serviceable parts inside those drives. Do not open.
Introduction 17
Laser compliance statement
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.
Rayonnement laser si carter ouvert. Évitez de fixer le faisceau, de le regarder directement avec des instruments optiques, ou de vous exposer au rayon.
Laserstrahlung bei geöffnetem Gerät. Nicht direkt oder über optische Instrumente in den Laserstrahl sehen und den Strahlungsbereich meiden.
Kinyitáskor lézersugár ! Ne nézzen bele se szabad szemmel, se optikai eszközökkel. Kerülje a sugárnyalábbal való érintkezést !
Aprendo l’unità vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente con strumenti ottici e evitare l’esposizione diretta al fascio.
Radiación láser al abrir. No mire fijamente ni examine con instrumental óptico el haz de luz. Evite la exposición directa al haz.
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General descriptions

The descriptions in this chapter apply to any ThinkPad 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
v Only certified trained personnel should service the computer. v Before replacing any FRU, read the entire page on removing and
replacing FRUs.
v When you replace FRUs, use new nylon-coated screws. v Be 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.
v Replace a 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.
v A 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.
v Be 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 computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer.
© Copyright Lenovo 2006, 2007 19
the warranty period, the customer may be responsible for repair costs if the
Read this first
Following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use.
Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list:
The following are not covered under warranty:
v LCD panel cracked from the application of excessive force or from being
dropped
v Scratched (cosmetic) parts v Distortion, deformation, or discoloration of the cosmetic parts v Plastic parts, latches, pins, or connectors that have been cracked or broken by
excessive force
v Damage caused by liquid spilled into the system v Damage caused by the improper insertion of a PC Card or the installation of an
incompatible card
v Improper disc insertion or use of an optical drive v Diskette drive damage caused by pressure on the diskette drive cover, foreign
material in the drive, or the insertion of a diskette with multiple labels
v Damaged or bent diskette eject button v Fuses blown by attachment of a nonsupported device v Forgotten computer password (making the computer unusable) v Sticky keys caused by spilling a liquid onto the keyboard v Use of an incorrect ac adapter on laptop products
The following symptoms might indicate damage caused by nonwarranted activities:
v Missing parts might be a symptom of unauthorized service or modification. v If the spindle of a hard disk drive becomes noisy, it may have been subjected to
excessive force, or dropped.
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Related service information

This section provides information about the following:
v “Service We b site” v “Restoring the factory contents by using Product Recovery discs” v “Passwords” on page 22 v “Power management” on page 24

Service Web site

When the latest maintenance diskette and the system program service diskette become available, they will be posted on http://www.lenovo.com/spm

Restoring the factory contents by using Product Recovery discs

When the hard disk drive is replaced because of a failure, no Product Recovery program is on the new hard disk. In this case, you must use the recovery discs for the computer. Order the recovery discs and the hard disk drive at the same time so that you can recover the new hard disk drive with the pre-installed software when they arrive. For information on which discs to order, see “Recovery discs” on page
160.
Related service information
To install the factory contents by using Product Recovery discs, do the following:
Note
The recovery process might take up to 2 hours.
1. Insert the Rescue and Recovery™ Disk1 of 1 into the optical drive, then restart the computer. This will take several minutes.
2. When the “Welcome to Rescue and Recovery” screen is displayed, press Continue. In the Rescue and Recovery menu, select Restore Your System. A message giving a warning that USB devices used in recovery must be connected when the computer is turned on appears. Click OK.
3. “Restore Your System” window appears. Select Restore my hard drive to the original factory state, and click Next. A warning appears, click Yes. Then next
menu appears. Select I do not want to save any files and click Next. Following menu appears with a warning, select Next. A warning appears not to power down the computer during the recovery process. Click OK. One more warning appears saying that recovery is intended only for unrecoverable system problems. Click OK.
4. The Terms and Conditions window appears, select I accept these terms and conditions and press OK. Previous menus may remain on the screen, but the
Predesktop installer begins copying files. When this completes, the computer will restart and a window will ask you to insert a Product Recovery Supplemental Disk, if you have one. Press No.
5. You will then be prompted to insert Product Recovery Disk 1 into the optical drive. Insert the Product Recovery Disk 1 into the optical drive, and press OK. In similar fashion, you will be prompted to insert the remaining recovery discs until all the files are copied.
6. After all the files are copied, the computer will restart and return to the “Welcome to Rescue and Recovery” screen where a window “Recovering your system, this may take several minutes” appears and .IMZ files are processed.
General descriptions 21
Related service information
A total progress bar allows you to audit this process, which will take about 8 minutes. The final recovery disc may be safely removed during this time, but may also be left in the optical drive since it is not bootable.
7. You will then be prompted to restart the computer. Select Yes. A warning
window appears, giving you one last chance to stop the restart, but disappears automatically after about 5 seconds. File processing continues in DOS full screen mode for about two minutes and the computer restarts to the Windows desktop. No user intervention is required (and should be avoided) after this point.
8. Windows setup continues on the desktop and DOS window for IBM system setup, with progress measured by a Factory Preinstallation window on the right side of the screen. The processes are updating installed softwares.
A warning that antivirus software is not installed appears repeatedly in the system tray, but this should be ignored. The entire process at desktop takes about 25 minutes.
9. Then the computer restarts, does some more DOS full screen processing, and restarts again to a Windows desktop where factory preinstallation continues for about 12 more minutes, another restart to a DOS screen and then back to the Windows splash screen and back to the desktop for more preinstallation.
This lasts about 10 more minutes and the computer restarts to do NTFS conversion and then restarts to the OOBE (Out of Box Experience) environment.
®

Passwords

As many as three passwords may be needed for any ThinkPad computer: the power-on password (POP), the hard-disk password (HDP), and the supervisor password (SVP).
If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on. The computer does not start until the password is entered.
Exception: If only an SVP is installed, the password prompt does not appear when
Power-on password:
A power-on password (POP) protects the system from being powered on by an unauthorized person. The password must be entered before an operating system can be booted.
Hard-disk password:
There
v User HDP—for the user
v Master HDP—for the system administrator, who can use it to get access to the
hard disk even if the user has changed the user HDP
Note:
the operating system is booted.
are two hard-disk passwords (HDPs):
There are two modes for the HDP: User only and Master + User. The
Master + User mode requires two HDPs; the system administrator enters both in the same operation. The system administrator then provides the user HDP to the system user.
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Related service information
Attention: If the user HDP has been forgotten, check whether a master HDP has been set. If it has, it can be used for access to the hard disk drive. If no master HDP is available, Lenovo does not provide any services to reset either the user or the master HDP, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.
Supervisor password:
supervisor password (SVP) protects the system information stored in the BIOS
A Setup Utility. The user must enter the SVP in order to get access to the BIOS Setup Utility and change the system configuration.
Attention: If the SVP has been forgotten and cannot be made available to the servicer, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee.
How to remove the power-on password
To remove a POP that you have forgotten, do the following:
(A) If no SVP has been set:
1. Turn off the computer.
2. Remove the battery pack.
For how to remove the battery pack, see “1010 Battery pack” on page 58.
3. Remove the backup battery.
For how to remove the backup battery, see “1140 Backup battery” on page 78.
4. Turn on the computer and wait until the POST ends.
After the POST ends, the password prompt does not appear. The POP has been removed.
5. Reinstall the backup battery and the battery pack.
(B) If an SVP has been set and is known by the servicer:
1. Turn on the computer; then, while the “To interrupt normal startup, press the blue ThinkVantage button” message is displayed at the lower-left of the screen, press the ThinkVantage® button. Rescue and Recovery screen opens.
To check whether the ThinkPad computer supports the Passphrase
Note:
function, enter BIOS Setup Utility and go to Security --> Password. If Using Passphrase item is displayed in the menu, this function is
available on the ThinkPad computer.
2. Click Access BIOS. The system Restart Required window is displayed.
3. Click Yes. The computer restarts, and the BIOS Setup Utility screen opens.
4. Select Security, using the cursor directional keys to move down the menu.
5. Select Password.
6. Select Power-On Password.
7. Type the current SVP in the Enter Current Password field. then leave the Enter
New Password field blank, and press Enter twice.
8. In the Changes have been saved window, press Enter.
9. Press F10; then, in the Setup confirmation window, select Yes .
General descriptions 23
Related service information
How to remove the hard-disk password
Attention: If User only mode is selected and the user HDP has been forgotten and cannot be made available to the servicer, Lenovo does not provide any services to reset the user HDPs or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee.
To remove a user HDP that has been forgotten, when the SVP and the master HDP are known, do the following:
1. Turn on the computer; then, while the “To interrupt normal startup, press the blue ThinkVantage button” message is displayed at the lower-left of the screen, press the ThinkVantage button. The Rescue and Recovery screen opens.
For models supporting the Passphrase function, press F1 while HDP icon is appearing on the screen; then enter the master HDP. For the other models, enter the master HDP.
Note: To check whether the ThinkPad computer supports the Passphrase
2. Click Access BIOS. The system Restart Required window is displayed.
3. Click Yes. The computer restarts, and the BIOS Setup Utility screen opens.
4. Select Security, using the cursor directional keys to move down the menu.
5. Select Password.
6. Select Hard-disk x password, where x is the letter of the hard disk drive. A
pop-up window opens.
7. Select Master HDP.
8. Type the current master HDP in the Enter Current Password field. then leave
the Enter New Password field blank, and press Enter twice.
9. Press F10.
10. Select Yes in the Setup Configuration window.
Both user HDP and master HDP will have been removed.
function, enter BIOS Setup Utility and go to Security --> Password. If Using Passphrase item is displayed in the menu, this function is available on the ThinkPad computer.

Power management

To reduce power consumption, the computer has three power management modes: screen blank, standby, and hibernation.
Screen blank mode
Screen blank mode has three variants, as follows:
1. If you press Fn+F3, or if the time set on the “LCD off timer” in the BIOS Setup Utility expires,
v The LCD backlight turns off. v The hard disk drive motor stops. v The speaker is muted.
If you are using the Advanced Configuration and Power Interface (ACPI)
2.
operating system and you press Fn+F3,
v The LCD backlight turns off. v The hard disk drive motor stops.
If the time set on the “Turn off monitor” timer in the operating system expires,
3.
v The LCD backlight turns off.
To end screen blank mode and resume normal operation, press any key.
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