Lenovo NetVista A20 Hardware Maintenance Manual for NetVista 6266, 6270, 6276,
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- Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 1
Hardware Maintenance Service for Service Level A Machine Types 6266, 6270, 6276, 6279, 6280 and 6286 1 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 2
Note Before using this information and the product it supports, be sure to read the general information under on page MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. References to IBM products, programs, or services do not imply that IBM intends to make them available outside the United States. - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 3
Troubleshooting ...59 Factory-Installed Storage Devices ...60 Factory-Installed Modem Card ...61 Audio (Not Supported by Diagnostics Program 62 CD-ROM Drive ...63 Memory ...64 Keyboard ...64 Mouse ...65 Power Supply ...66 Monitor ...68 Undetermined Problems Parts of the Parts of the - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 4
Parts/Test Signals ...114 Safety Inspection Guide...115 General Guidelines...116 Parts Catalog of Machine Type...117 Parts Catalog of Machine Types 3: CD-ROM, Modem Card ...121 Assembly 4: Keyboard and Mouse ...123 Parts Catalog of Machine Types 6266 ...126 Assembly 2: Diskette Drive, Hard Disk Drive - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 5
legally protectable rights, may be used instead of the IBM product, program, or service. References in this publication to IBM products, programs, or services are purely hardwarerelated and do not cover circumstances of software problems. Evaluation and verification of operation in conjunction with - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 6
Safety Information DANGER To avoid a shock hazard, do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. To avoid shock hazard: The power cord must be connected to a properly wired and grounded receptacle. Any - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 7
the battery, use only IBM Part Number 36L9077 or an equivalent drive could result in exposure to hazardous laser radiation. There are no serviceable parts inside the CD-ROM drive. Do not remove the CD-ROM drive covers, unless instructed otherwise in the installation and configuration procedures. - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 8
PERIGO Para evitar choques elétricos, não conecte ou desconecte nenhum cabo, nem efetue instalação, manutenção ou reconfiguração deste produto durante uma tempestade com raios. Para evitar choques elétricos: O cabo de alimentação deve ser conectado a um receptáculo corretamente instalado e - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 9
cuidado: Ao substituir a bateria, utilize apenas o Número de Peça IBM 36L9077 ou um tipo de bateria equivalente recomendado pelo fabricante. Se seu sistema possuir um módulo com uma bateria de lítio, substitua-o apenas pelo mesmo - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 10
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, lorsque vous installez ou que vous déplacez le présent produit ou des périphériques qui lui sont raccordés, reportez-vous aux instructions cidessous pour connecter et déconnecter les différents cordons. Connexion Déconnexion 1. Mettez les unités hors tension. 1. Mettez les unités hors tension - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 15
attention: Remplacez la pile usagée par une pile de référence identique exclusivement - voir la référence IBM - ou par une pile équivalente recommandée par le fabricant. Si votre système est doté d'un module contenant une pile au lithium, vous devez le - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 16
ses cordons d'alimentation, ainsi que les câbles qui le relient aux réseaux, aux systèmes de télécommunication et aux modems (sauf instruction contraire mentionnée dans les procédures d'installation et de configuration). VORSICHT Aus Sicherheitsgründen bei Gewitter an diesem Gerät keine Kabel - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 17
achtung: Eine verbrauchte Batterie nur durch eine Batterie mit der IBM Teilenummer 36L9077 oder durch eine vom Hersteller empfohlene Batterie ersetzen. Wenn Ihr System ein Modul mit einer Lithium-Batterie enthält, ersetzen Sie es immer - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 18
PERICOLO Per evitare il pericolo di scosse elettriche durante i temporali, non collegare o scollegare cavi, non effettuare l'installazione, la manutenzione o la riconfigurazione di questo prodotto. Per evitare il pericolo di scosse elettriche: collegare il cavo di alimentazione ad una presa - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 19
Quando si sostituisce la batteria, utilizzare solo una batteria IBM 36L9077 o batterie dello stesso tipo o di tipo utilizzo di controlli, regolazioni o l'esecuzione di procedure non descritti nel presente manuale possono provocare l'esposizione a radiazioni pericolose. L'apertura di un'unità CD - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 20
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PELIGRO Para evitar una posible descarga eléctrica, no conecte ni desconecte los cables ni lleve a cabo ninguna operación de instalación, de mantenimiento o de reconfiguración de este producto durante una tormenta eléctrica. Para evitar una posible descarga: El cable de alimentación debe conectarse - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 23
caution: Al cambiar la batería, utilice únicamente la batería IBM Número de pieza 36L9077 o un tipo de batería equivalente recomendado por el fabricante. Si el sistema tiene un módulo que contiene una batería de litio, - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 24
PRODUIT LASER CATEGORIE 1 The CD/DVD-ROM drive 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. In other countries, the drive is certified to conform to the - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 25
in the United States or other countries or both: Operating System/2 AT HelpCenter IBM OS/2 Personal System/2 PS/1 PS/2 Intel, Pentium, MMX, EtherExpress, and registered trademarks of Microsoft Corporation. Other company, product, and service names may be trademarks or service marks of others. 25 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 26
chapters: Notices contains important safety information and notices required to service this computer. General Information contains a brief description of this manual. Check Procedures provide step-by-step instructions that aid in locating the failure Field Replaceable Unit (FRU). Diagnostic - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 27
Menus ...35 Advanced Setup ...38 Power Management Setup ...39 ISA Legacy Resources ...39 System Security ...39 Specifications ...41 Operating Requirements ...42 Special Tools...43 Copyright IBM Corp. 2000 27 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 28
Introduction This chapter gives a general overview of Machine Types 6266, 6270, 6276, 6279, 6280 and 6286, describing the standard and optional features and details functional and environmental specifications. Machine Types 6266 and 6286 are desktop models and 6270, 6276, 6279 and 6280 are micro - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 29
Product Overview All Machine Types mentioned above contain three PCI slots, and the system boards support the Intel processors. Listed below are system features: Processors (Machine Types 6266, 6270, 6276, 6279, 6280 and 6286) • Socket 370 • Detachable fansink with only a heatsink - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 30
is enabled, the operating system is allowed to control the power management features of your computer. • APM BIOS Mode if your operating system supports APM enabled machines. • Automatic Power On: this option lets you enable and disable features that automatically turn on your computer. Note: For - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 31
Keyboard (Keyboard is Geography/Model dependent.) • PS/2 104-key rubber dome IBM Keyboard with 1.8-m (5.8-ft) cable. • Rapid Access II Keyboard with 104 keybuttons. Mouse • 2 button mouse connected to the mouse port with 1.8-m (5.8-ft) cable. • ScrollPoint II mouse. 31 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 32
Plug and Play modem adapter card with data/fax features. All models use ADI Codec. IBM PS/2-compatible mouse IBM PS/2-compatible keyboard 9-pin connector with RS232D electrical interface Supports SPP (IBM PC/AT, PS/2) compatible, EPP (IEEE 1284 compliance), ECP (IEEE 1284 compliance) interface. USB - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 33
CMOS Reset This system does not deny access to the BIOS Setup Utility. Execute "Load BIOS Default Settings" in BIOS Setup to clear the corrupted CMOS data. See "Loading Default Settings" on page 36. 33 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 34
an option to update it. Press Y to update the serial number. 6. Type the 7-digit serial number of the computer you are servicing, then press Enter. 7. Follow the instructions on the screen to complete the flash (BIOS/VPD) update procedure. Attention: Refer to the information label located inside the - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 35
Utility Follow these steps to enter Setup when the computer is off: 1. Turn on your monitor. 2. Turn on the system unit. 3. When you see the IBM logo, press F1 to enter Setup and display the Main Menu. Refer to the Setup Utility Main Menu below. 35 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 36
parameter, highlight the setting then use the left- or right-arrow key to change the setting. Loading Default Settings When you purchase an IBM personal computer, it is already configured for use. The original configuration settings, also called factory or default settings, are stored in the CMOS - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 37
this menu item to enable or disable the Universal serial Bus (USB) functions. USB Support Select enabled if you will be using USB devices. USB Keyboard / Mouse Support Select Autodetect if you want this support enabled. The USB Support must also be set to enabled before you use USB /Keyboard Mouse - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 38
Start options The start options are settings that affect the way your computer acts when started. Startup Sequence Your computer can be started from several devices, including the hard disk drive, diskette drive, and CD-ROM drive. Primary Startup Sequence Use this setting to view or change the - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 39
If you are experiencing problems with a Plug and Play adapter, changing address to decoding to 10-bit might fix the problem. Address Decode Select Yes Wake up at a preset time. Wake up from PCI devices that supports this function. System Security Use this setting to configure the system security - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 40
Remote Administration Select enabled to allow Remote Administration to be run from a remote system without requiring entry of your administrator password. Power-On Password This option allows you to set, change, or delete a power-on password. Administrator Password This option allows you to set, - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 41
Specifications Dimensions (width x depth x height): • System unit: For machine types 6266 and 6286 − 305 mm (12.45 in.) x 380.4 mm (14.97 in.) x 88 mm (3.46 in.) For machine types 6270, 6276, 6279 and 6280: − 192 mm x 338 mm x 353 mm . Weight: • System unit: For machine types 6266 and 6286: − 8.5 kg - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 42
Operating Requirements All machines require two power inputs: one on the system unit and one on the monitor display. The system unit comes with a voltage selector switch, allowing selection of either 115 V ac or 230 V ac. This switch must be in the 230 V ac position when the machine is plugged into - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 43
Special Tools The following special tool is required to service this system when running the diagnostics program (PC-Doctor): • Wrap plug, P/N 72X854 43 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 44
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Beeps 50 Troubleshooting ...59 Factory-Installed Storage Devices ...60 Factory-Installed Modem Card ...61 Audio (Not Supported by Diagnostics Program 62 CD-ROM Drive ...63 Memory ...64 Keyboard ...64 Mouse ...65 Power Supply ...66 Monitor ...68 Undetermined Problems...69 Copyright IBM Corp. 2000 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 46
the field replaceable units (FRUs) most likely to cause a particular problem. Check Procedures: When the Start check procedure or the Index of the check procedure and perform the steps as instructed. If you do not remember the location of a specific part or test point, or an adjustment or removal - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 47
and error messages are displayed on the screen after the IBM logo. A beep will precede each error code or the system. NOTE: If the check procedures instruct you to replace a FRU and the error message until the error changes or the problem is no longer apparent. The problem may be in the last card - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 48
instructed to replace a FRU but doing so did not correct the problem effective and time-efficient servicing that each stage of in the drives. 002 - DOES AN IBM LOGO SCREEN APPEAR? (YES, READ AHEAD instructions on the screen and select Utility from the diagnostics program menu. Select Tech Support - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 49
devices supported by the diagnostics diskette. If a device is missing from the list and is not factory installed, refer to the service manual provided If no error can be detected or the symptom is intermittent, go to "Undetermined Problems" on page 69. End 009 If the last test stops and you cannot - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 50
sure you complete all items in the cause or "Action/FRU" column. When servicing a system, always begin with "Start" on page 47. If the problem cannot be corrected using these two index tables, go to "Undetermined Problems" on page 69. NOTES: If an error message and incorrect audio response occur - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 51
Table 2-1 BIOS Error Codes, Messages, and Beeps List BIOS Error Codes, Messages, Action/FRU beeps NOTE: To diagnose a problem, first find the BIOS error messages, codes, or beeps in left column. If directed to a check procedure, replace the FRU indicated in the check procedure. - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 52
. OFFENDING SEGMENT: This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARITY ERROR messages when the segment that has caused the problem has been isolated. PRESS A KEY TO REBOOT This will be displayed at the bottom of the screen when an error occurs that requires you to - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 53
Table 2-2 BIOS Error Codes, Messages, and Beeps List BIOS Error Codes, Messages, Action/FRU beeps NOTE: To diagnose a problem, first find the BIOS error messages, codes, or beeps in left column. If directed to a check procedure, replace the FRU indicated in the check procedure. - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 54
be exactly set to match its speed requirement before diagnosing any processor problems. Processor fan does not run but Make sure that the system is stop at "Halt on Error" to see the potential cause of the problem. "Undetermined Problems" on page 69. Blinking cursor only; system does not work. " - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 55
-ROM drive is configured correctly in BIOS Setup, cable/jumper are set correctly and its laser beam is clean before diagnosing any CD-ROM drive problems. CD-ROM drive LED flashes for more than 30 seconds before LED shutting off. Software asks to reinstall disc. Software displays a reading CD error - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 56
on it. Check with a known good disc. Make sure that the CD-ROM driver is installed properly. CD-ROM drive. CD-ROM drive can play audio CD Blank monitor(bright) - Distorted image - Unreadable monitor - Other monitor problems Display changing colors. Video and Monitor Remove all non-factory cards. - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 57
-back. System board. Printing failed. Make sure that the printer driver is properly installed. Refer to the service manual for the printer. Printer. Printer cable. System board. Printer problems. Refer to the service manual for the printer. Joystick Game port does not respond or Connect - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 58
Table 2-3 Error Symptoms List Error Symptoms Action/FRU NOTE: To diagnose a problem, first find the error symptom in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 59
Troubleshooting Failing Parts or Assemblies: The check procedures generally help you trace a problem to one part or assembly. The last step of the specific check procedure you are using indicates that a part or assembly is failing. You should inspect the part near the instruction indicates the - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 60
verify that the customer settings are in place when service is complete. NOTE: If you cannot access the hard in the system unit to those shown in the Tech Support Form. 004 - IF THE NUMBER OF DISKETTE, HARD DISK if necessary. If that does not fix the problem, replace the system board. End. 005 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 61
Windows 98 is installed, the program screens and icons may differ from these instructions. 1. Start Microsoft Windows 98. 2. Select the Start icon. 3. Select Program, then select Accessories, Hyper Terminal. 4. Select an on-line service station, dial and connect to it. 004 - CAN THE MODEM DIAL OUT - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 62
Not Supported may need to enter and exit Microsoft Windows 98 several times. When instructed to select an icon or button, double-click on the item with For more information about using Microsoft Windows 98, see the user's guide that came with the computer. If an operating system other than Microsoft - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 63
Test. 002 - DO YOU SEE A MESSAGE "NO CD-ROM DRIVE OR MSCDEX DEVICE DRIVER INSTALLED." ? (YES, READ AHEAD. NO, GO TO 003.) Exit the diagnostics program and are connected properly. Check and make sure that the CD-ROM drive driver is loaded correctly. Load default settings. 003 - DO THE TESTS OF OPEN - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 64
the error message remains, go to step 005. 003 Follow the screen instructions to run the Memory test. 004 - DOES THE MEMORY TEST COMPLETE WITHOUT .) The system memory is now functioning correctly. If you suspect an intermittent problem, run the Memory test again. End. 005 Replace each DIMM, one at - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 65
AHEAD. NO, GO TO STEP 010.) Replace the system board. End 010 Replace the mouse. End. 011 Exit diagnostics program. Make sure that the mouse driver is properly installed. Go to step 002. 65 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 66
Power Supply 001 - START Power off the system unit. Check the power cord for continuity. Replace if necessary. Check for the correct line voltage from the power outlet, and verify that the voltage selector switch is set to the correct voltage. Power on the system unit. 002 - DOES THE POWER SUPPLY - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 67
the on/off switch cable assembly, see Step 003. If the fan continues to run when all connectors are plugged back in, go to "Undetermined Problems" on page 69. If the fan stops running when a drive connector is plugged back in, go to "Start" on page 47. 007 - DO YOU HAVE - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 68
sold together with the system unit, you may need to refer to the service information provided with the monitor. 002 - IS THE SCREEN READABLE? ( TO STEP 004) You have successfully completed the video diagnostics tests. If the problem remains, go to "Index of Symptoms, Messages, Error Codes, or Beeps" - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 69
following checks, one by one, until you have isolated the problem FRU (refer to "Parts/Test Point Locations" on page 99 for locations): Load default continue: 3. Remove or disconnect the following, one at a time: Non-IBM devices External devices Any adapters Modem card, if installed CD-ROM drive - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 70
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Diagnostic Aids Diagnostic Aids ...71 Introduction ...72 Power-On Self Test ...73 Diagnostics Tools ...74 Using Diagnostics Program from Recovery CD 74 Diagnostics Program Features ...75 Copyright IBM Corp. 2000 71 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 72
Introduction This section explains the diagnostic aids, power-on self test (POST) and diagnostics program (PC-Doctor), that are available for troubleshooting problems on the system. 72 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 73
initiated. Several items are tested during POST, but is for the most part transparent to the user. POST checks the following: • System Board • Setup Utility menu to appear. The F9 key will switch the graphical IBM logo screen to the traditional text-based system startup screen, which displays - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 74
manual is intended to test the IBM Machine Types 6266, 6270, 6276, 6279, 6280 and 6286.Testing devices which are not included with the original product package, including other IBM Enter to start the diagnostics program. Follow the instructions on the screen to operate the diagnostics program. 74 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 75
USB Port • System Configuration • Memory Contents • IRQ and DMA Use • Device Drivers • COM and LPT Ports • Physical Disk Drives • Logical Disk Drives • VGA DMIBIOS Info • File Editor • Surface Scan Hard Disk • Terminal • Tech Support Form • Battery Rundown • Select Language • Exit Diags • Park HD • - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 76
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of Machine Types 6270, 6276, 6279 and 6280 78 Identifying the Parts of the System Unit ...79 Top Cover ...81 Adapter Cards DIMM) ...88 Removals and Replacements of Machine Types 6266 and 6286 89 Identifying the Parts of the System Unit ...90 Top Cover ...91 Adapter Cards ...92 Diskette Drive... - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 78
Removals and Replacements of Machine Types 6270, 6276, 6279 and 6280 BEFORE REMOVING ANY FRU, POWER-OFF THE COMPUTER, UNPLUG ALL POWER CORDS FROM ELECTRICAL OUTLETS, THEN DISCONNECT ANY INTERCONNECTING CABLES. ATTENTION: The System board, processors, adapter cards, DIMMs, and upgrade processors can - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 79
Identifying the Parts of the System Unit This computer system has 3 bays, each bay has a CD-ROM drives in this unit use an integrated drive Electronics (IDE) AT interface. This computer supports the American National Standard Institute (ANSI) standard for AT attachment disk drives and CD-ROMs. This - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 80
1. Expansion slots On the rear panel of the system unit are 3 slot openings for installation of adapter card. 2. Hard Disk Drive This machine has a factory-installed 3.5" (10 or 15) GB hard disk drive. 3. Power Supply 4. Bay 2 This drive can accommodate a 5.25-inch device. 5. Bay 1. This drive bay - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 81
Top Cover To remove the top cover of this system unit: Remove the 3 screws that secure the top cover at the back of the system unit. Hold both sides of the system unit cover and push it backward about 25 inches. Lift the top cover up to remove it completely. Touch the bare metal frame of your system - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 82
Adapter Cards Installing Adapter Cards Align and insert the adapter card into the adapter card connector. Secure the card with the screw to the system chassis. Reinstall all hardware and screws that you removed prior to the installation of the adapter card. Removing Adapter Cards Follow these steps - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 83
Diskette Drive To remove the diskette drive: Remove the screw that secures the power at the back of the system unit. Pull the latch on the drive mounting tray and the power upward to remove it completely. Disconnect the power and signal cables from the back of the diskette drive. Remove the two - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 84
CD-ROM Drive To remove CD-ROM Drive: Disconnect the power, sound and signal cables from the CD-ROM. Remove the two screws that secure the CD-ROM drive Open the door on the front of the computer. Slide the CD-ROM drive forward through the front opening and remove it. Reverse the procedure to install - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 85
Hard Disk Drive To remove or replace the hard disk drive: Disconnect the power and signal cables from the diskette drive. Remove the two screws that secure the mounting tray at the bottom of the system unit. Pull the drive mounting tray upward and remove it. Remove the four screws (two on each side) - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 86
System Board To remove the system board from the system: To remove the system board, you must remove the adapter cards first. Disconnect the power cable, CD-ROM cable, Diskette Drive cable, Hard Disk Drive cable, audio cable, power switch cable, speaker cable and LED cable from system board. Remove - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 87
Power Supply This system has a 155-watt switching power supply. 1. To remove the power supply. You must remove the top cover first. 2. Disconnect the power cable from the riser board and all drives. 3. Remove the screw in the machine rear that secures the power supply. 87 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 88
Memory (DIMM) This system has 2 system memory module sockets, DIMM 0 and DIMM 1. These sockets hold dual in line memory modules (DIMM) that contains 3.3V signal or double-sided synchronous DRAM (SDRAM). You can install 32MB, 64MB, 128MB or 256MB DIMM in any sockets and with any combinations. The - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 89
Removals and Replacements of Machine Types 6266 and 6286 BEFORE REMOVING ANY FRU, POWER-OFF THE COMPUTER UNPLUG, ALL POWER CORDS FROM ELECTRICAL OUTLETS, THEN DISCONNECT ANY INTERCONNECTING CABLES. ATTENTION: The System board, processors, adapter cards, DIMMs, and upgrade processors can be damaged - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 90
Identifying the Parts of the System Unit This computer system has 3 bays, each bay has a CD-ROM drives in this unit use an integrated drive Electronics (IDE) AT interface. This computer supports the American National Standard Institute (ANSI) standard for AT attachment disk drives and CD-ROMs. This - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 91
Top Cover To remove the top cover of this system unit: Remove the screws that secure the top cover at the back of the system unit. Hold both sides of the system unit top cover and push it forward about 25 inches. Lift the top cover up to remove it completely. Touch the bare metal frame of your - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 92
Adapter Cards Installing Adapter Cards Remove the screw that secures the adapter card retainer and slot cover. Then remove the card retainer and slot cover. Align and insert the adapter card into the adapter card connector. Secure the card with the screw that you removed in the first step. Reinstall - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 93
Diskette Drive To remove the diskette drive: Disconnect the power and signal cables from the back of the diskette drive. Pull up the latch that secures the drive-mounting tray. Slide the drive-mounting tray toward the front of the computer and remove it. Remove the four screws (two on each side) - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 94
CD-ROM Drive To remove CD-ROM Drive: Disconnect the power, sound and signal cables from the CD-ROM. Pull up the latch that secures the CD-ROM drive mounting tray. Slide the drive-mounting tray toward the back of the computer and remove it. Remove four screws (two on each side) that secure the bay - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 95
Hard Disk Drive To remove or replace the hard disk drive: Follow the above steps to remove the CD-ROM. Make sure to disconnect the power cord and signal cables from the hard disk drive and the diskette device. Remove the screws that secure the bay holder that holds the hard diskette drive. Pull the - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 96
System Board To remove the system board from the system: To remove the system board, you must remove the adapter cards first. Disconnect the power cable, CD-ROM cable, Diskette Drive cable, Hard Disk Drive cable, audio cable, power switch cable, speaker cable and LED cable from system board. Remove - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 97
Power Supply This system has a 95-watt switching power supply. 1. To remove the power supply. You must remove the top cover first. 2. Disconnect the power cable from the riser board and all drives. 3. Remove the screws in the machine rear that secure the power supply. 97 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 98
Memory (DIMM) This system has 2 system memory module sockets, DIMM 0 and DIMM 1. These sockets hold dual in line memory modules (DIMM) that contains 3.3V signal or double-sided synchronous DRAM (SDRAM). The maximum memory size is 512 MB total. 98 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 99
Point Locations Parts/Test Point Locations ...99 Introduction ...100 Layout of System Board of Machine Types 6266, 6270, 6276, 6279 101 Port Signals ...111 Keyboard Port Signals...112 Diskette Drive Cable Connector Signals 113 IDE Cable Connector Signals ...114 Copyright IBM Corp. 2000 99 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 100
chapter contains system board layout and jumper settings. It is useful when you are asked to measure voltages. Use this information to help you locate parts such as electronic boards, connectors, pin numbers, and test points. This chapter also contains jumper settings for the hard disk drive, CD-ROM - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 101
Layout of System Board of Machine Types 6266, 6270, 6276, 6279, 6280 and 6286 Jumpers and Connectors Locations of System Board of Machine Types 6266, 6270, 6276, 6279, 6280 and 6286 1. Power connector (JWR1) 11. Modem In connector (J7) 2. DIMM 12. Aux Line In connector (J6) 3. Floppy Disk - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 102
Connectors and Functions of System Board of Machine Types 6266, 6270, 6276, 6279, 6280 and 6286 Table 5-1.Connectors and Functions of System Board of Machine Types 6266, 6270, 6276, 6279, 6280 and 6286 Connector Function BATT Battery socket FDD 1 Floppy connector PCI Slot 1 PCI Slot 1 PCI - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 103
Power Supply Cable Connector Specifications Refer to the following figures when checking for voltages on power supply cable connectors. When checking voltages, the power supply fan must be running. To power on the power supply without using the on/off switch, use a screwdriver or other tools to - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 104
Main Output Pin Assignment Table 5-3. Main Output Pin Assignment Pin Function 1 +3.3 V 2 3.3 V 3 COMMON 4 +5Vdc 5 COMMON 6 +5Vdc 7 COMMON 8 POWER GOOD 9 +5Vs 10 +12Vdc 11 3.3V 12 -12Vdc 13 COMMON 14 P.S-on 15 COMMON 16 COMMON 17 COMMON 18 NC 19 +5Vdc 20 + - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 105
Hard Drive or CD-ROM Power Cable Connector 3.5-In. Diskette Drive Power Cable Connector 105 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 106
Factory-Installed Modem Card Layout 1 2 Factory-Installed Modem Card Layout Factory-Installed Modem Card Connector Functions Item Function Connect to 1 Telephone line-out Telephone set Some modem adapters may come without this jack. 2 Telephone line-in Telephone line NOTE: Care should - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 107
Setting Jumper Configurations Slave Cable Select CS DS DS GND GND GND Jumper Shown in Parking Reserved Position Position DS with CS for Slaves not supporting DASP 3.5-in Hard Disk (Quantum) Jumper Settings Locations 107 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 108
insert and press an eject-bar inside the emergency eject hole to manually eject the tray. A straightened paper clip with a diameter of used as an eject-bar. NOTE: Make sure to turn off the power before manual discs eject operation. CD-ROM Drive Rear Panel Connectors and Features NOT USED AUDIO 1 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 109
CD-ROM Drive Jumper Settings CS SL MA -- -- On -- On -- On -- -- DESCRIPTION Drive configured as a Master. (default) Drive configured as a Slave. Cable select 109 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 110
DIMM Configurations The system board has two DIMM sockets. A maximum of 512KB memory may be installed. You can install 32MB, 64MB, 128MB or 256MB DIMM in any sockets and with any combinations. 110 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 111
System Board Connector Pin Signals Monitor Port Signals Pin Signal Name I/O Pin Signal Name I/O 1 Red Video O 9 +5 V dc N/A 2 Green Video O 10 Synch Ground N/A 3 Blue Video O 11 No Connection N/A 4 No Connection N/A 12 Monitor ID Bit 1 I 5 Synch Ground N/A 13 Horizontal - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 112
Keyboard Port Signals Pin Signal Name 1 Keyboard Data 2 Mouse Data 3 Ground I/O Pin I/O 4 N/A 5 Power 6 Signal Name +5 V dc Keyboard Clock Mouse Clock I/O Power I/O N/A 112 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 113
Diskette Drive Cable Connector Signals Pin Signal Name I/O Pin Signal Name I/O 1 No Connection N/A 18 Direction SELECT O 2 Density Select O 19 Ground N/A 3 No Connection N/A 20 Step O 4 High Density Out I 21 Ground N/A 5 Ground N/A 22 Write Data O 6 No Connection - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 114
IDE Cable Connector Signals Pin Signal Name I/O Pin 1 Host Reset O 21 2 Ground N/A 22 3 Host Data 7 I/O 23 4 Host Data 8 I/O 24 5 Host Data 6 I/O 25 6 Host Data 9 I/O 26 7 Host Data 5 I/O 27 8 Host Data 10 I/O 28 9 Host Data 4 I/O 29 10 Host Data 11 I/O 30 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 115
Safety Inspection Guide General Guidelines...116 Copyright IBM Corp. 2000 115 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 116
to provide the operators and service personnel with an acceptable level of safety. This guide lists only these items. Good IBM service supplements outlining feature/model changes, along with the machine history, should be reviewed. Check the following items: Damaged, missing, or changed parts, - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 117
1: System Unit...118 Assembly 2: Diskette Drive, Hard Disk Drive 120 Assembly 3: CD-ROM, Modem Card ...121 Assembly 4: Keyboard and Mouse ...123 Parts Catalog of Machine Types 6266 ...126 Assembly 1: System Unit...126 Assembly 2: Diskette Drive, Hard Disk Drive 128 Assembly 3: CD-ROM, Modem Card - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 118
Parts Catalog of Machine Types 6270, 6276, 6279 and 6280 Assembly 1: System Unit Asm-Index PIII 933MHz 1-2 24P6010 IMTEL PIII 1GHz 1-3 19K3292 Fansink, Supports PIII Processors and Celeron 600 and up 1-3 24P6009 Fansink, Support 933MHz/1GHz PIII Processors 1-4 19K3293 64MB module (PC133) - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 119
1-5 1-5 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 1-14 1-15 1-16 1-17 1-17 1-18 1-19 1-20 1-21 1-22 1-23 1-23 1-24 00N7689 155W Power Supply 4X3 China 00N7687 6952301 36L8879 155W Power Supply 4X3 Japan/EMEA Power Cord US, LA (Lo Volt), Canada, Mexico, Peru, - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 120
Assembly 2: Diskette Drive, Hard Disk Drive Asm-Index FRU Number Description 2-1 10K2059 10GB HDD, 3.5" 2-1 19K3299 15GB HDD, 3.5" 2-1 19K3355 20GB HDD, 3.5" 2-1 19K1561 30GB HDD, 3.5" 5400 RPM, ATA66 2-1 24P6001 10GB HDD, 3.5", 5400 RPM, ATA 100 , 20GB/Platter 2-1 24P6003 20GB HDD, - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 121
Assembly 3: CD-ROM, Modem Card 33--44 3-6 3-7 3-5 Asm-Index FRU Number Description 3-1 19K3643 48X CD-ROM, Black Bezel 3-1 22P2448 8X4X32X CD-RW, Black Bezel 3-1 19K3413 4X4X32X CD-RW, Black Bezel 3-2 19K3358 CD-ROM Cable 3-3 09N5406 CD-ROM Audio Cable (for MSI board) 3-3 19K3580 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 122
3-7 60H6045 Modem Phone Cable Adapter, Austria 3-7 60H6046 Modem Phone Cable Adapter, Belgium 3-7 60H6047 Modem Phone Cable Adapter, Denmark 3-7 60H6048 Modem Phone Cable Adapter, Norway/Finland 3-7 60H6049 Modem Phone Cable Adapter, France 3-7 60H6050 Modem Phone Cable Adapter, Germany - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 123
Assembly 4: Keyboard and Mouse 4-2 4-4 4-1 4-3 Asm-Index FRU Number Description 4-1 10L6149 Logitech Badger (2 Button), Black 4-1 28L1868 Scroll Point II, Black 4-2 37L2551 104 PALM REST US ENG 103P US/China/ANZ/Singapore 4-2 37L0913 105 PALM REST FR CANADIAN 058, Commercial 4-2 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 124
4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 124 37L2570 105 PALM REST, EURO POLISH 214 37L2571 105 PALM REST, EURO PORTUGUESE 163 37L2572 105 PALM REST, ROMANIAN 446 37L2573 104 PALM REST, RUSSIAN 443 37L2574 105 PALM - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 125
4-2 37L2629 105 SWISS 150, EURO 4-2 37L2630 105 UK ENGLISH 166, EURO 4-2 37L2634 105 BELGIUM FRENCH 120, EURO 4-3 22P2313 External Speaker Set, Active, Cyber Acoustics, Tier 4, Black Speaker Power Adapter, US, LA (Lo Volt), Canada, Mexico, Peru, 4-4 10K2587 Colombia, Ecuador, Venezuela, - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 126
Parts Catalog of Machine Types 6266 and 6286 Assembly 1: System Unit Asm-Index FRU Number Description 1-1 1-1 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 PIII 1GHz 133FSB 19K3292 Fansink, Supports PIII Processors and Celeron 600 and up 24P6009 Fansink, Supports 933MHz/1GHz Coppermine, PIII Processors - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 127
, Black Main Bezel includes FDD Cover and CD-ROM Blank, SFF, NetVista (new style) White Outer (Bezel) Panel w/FDD slot and Knock-out for CD-ROM slot, SFF, (old style), White FDD DASD (Holder) Bracket, does not support PCMCIA, SFF 19K3328 HDD DASD (Holder) Bracket, SFF 19K3329 CD-ROM DASD (Holder - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 128
Assembly 2: Diskette Drive, Hard Disk Drive Asm-Index FRU Number Description 2-1 10K2059 10 GB Hard Disk Drive, 3.5" 2-1 24P6001 10GB Hard Disk Drive, 3.5", 5400 RPM, ATA 100, 20GB/Platter 2-1 19K3355 20GB Hard Disk Drive, 3.5" 2-1 24P6003 20GB Hard Disk Drove, 3.5", 5400 RPM, ATA 100, - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 129
Assembly 3: CD-ROM, Modem Card Asm-Index FRU Number Description 3-1 19K3360 40X CD-ROM, White Bezel 3-1 19K3300 48X CD-ROM Drive, White 3-1 19K3643 48X CD-ROM Drive, Black 3-2 19K3342 CD-ROM Cable 3-3 09N5406 CD-ROM Audio Cable (for MSI board) 129 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 130
Assembly 4: Keyboard and Mouse 4-2 4-1 Asm-Index FRU Number Description 4-1 10L6145 Mouse, Badger 4-1 10L6149 2-Button Mouse, Black 4-2 37L2514 104 PALM REST US ENG 103P US/CHINA/ANZ/Singapore 4-2 37L0912 105 PALM REST FR CANADIAN 058(Commercial) 4-2 37L2516 105 PALM REST, LA SPANISH - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 131
4-2 37L2535 105 PALM REST, ROMANIAN 446 4-2 37L2536 104 PALM REST, RUSSIAN 443 4-2 37L2537 105 PALM REST, SERBIAN/CYR 118 4-2 37L2538 105 PALM REST, SLOVIC 245 4-2 37L2539 105 PALM REST, EURO SPANISH 145 4-2 37L2540 105 PALM REST, EURO SWED/FINN 153 4-2 37L2541 105 PALM REST, EURO SWISS - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 132
you to diagnose and resolve technical problems by giving you access to the same tools used by IBM PC HelpCenter specialists. IBM Online Assistant guides you from symptom to resolution, by asking simple questions based on the collective experience of IBM senior support specialists. In addition many - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 133
Signals, 111 Multimedia, 30 O Online Support Information, 118 P Parallel Port, 32 Error Symptoms, 57 Port Signals, 111 Parts Catalog of Machine Type, 117 CD-ROM Drive, 121, 128 Keyboard and Mouse, 123, 130 System Unit, 118, 126 Parts/Test Point Locations, 99 PCI, 32 Plug and Play, 39 POST, 47 Power - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 134
, 93 Hard Disk Drive, 85, 95 System Board, 86, 96 Top Cover, 81, 91 S Safety Inspection Guide, 115 Serial Port, 29, 32, 38 Error Symptoms, 57 Port Signals, 111 Specifications, 41 Dimensions, 41 Electrical 6286, 101 Error Symptoms, 54 T Tools, 43 U Undetermined Problems Check Procedure, 69 USB, 32 134 - Lenovo NetVista A20 | Hardware Maintenance Manual for NetVista 6266, 6270, 6276, - Page 135
Printed in U.S.A. International Business Machines Corporation Old Orchard Road, Armonk, New York 10504 Part Number: 06P1789 Pub Number: S06P-1789-01 1/01
1
Hardware Maintenance Service
for Service Level A
Machine Types 6266, 6270, 6276, 6279, 6280 and 6286