IBM T21 - Manual

Contents About this manual . . . . . . . . . . . iii Introduction . . . . . . . . . . . . . 1 Important service information . . . . . . . . . 1 Strategy for replacing FRUs . . . . . . . . 1 How to use error messages . . . . . . . . 2 Diskette compatibility matrix . . . . . . . . . 2 Safety notices: ...

Introduction Important service information Important BIOS and device driver fixes arecustomer-installable. The BIOS and device driversare posted on the IBM support site http://www.ibm.com/pc/support Advise customers to contact the PC CompanyHelpCenter at 800-772-2227 if they need assistancein obtain...

Strategy for replacing a hard-disk drive Always try to run a low-level format before replacing ahard-disk drive. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremelycareful during write operations such as copying, saving, orformatting. If you se...

Safety notices: multilingual translations In this manual, safety notices appear in English with apage number reference to the appropriate multilingual,translated safety notice found in this section. The following safety notices are provided in English,French, German, Italian, and Spanish. Safety not...

Safety notice 5 If the LCD breaks and the fluid from inside the LCDgets into your eyes or on your hands, immediatelywash the affected areas with water for at least 15minutes. Seek medical care if any symptoms from thefluid are present after washing. Si le panneau d’affichage à cristaux liquides se b...

v After service, reinstall all safety shields, guards, labels,and ground wires. Replace any safety device that isworn or defective. v Reinstall all covers correctly before returning themachine to the customer. Electrical safety Observe the following rules when working on electricalequipment. Importa...

– When using testers, set the controls correctly and use the approved probe leads and accessories forthat tester. – Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such asmetal floor strips and machine frames. Observe the special safety precautions when yo...

damage by equalizing the charge so that the machine, thepart, the work mat, and the person handling the part are allat 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 ...

Some CD-ROM drives, DVD-ROM drives, or other opticalstorage devices contain an embedded Class 3A or Class3B laser diode. Note the following: DANGER Emits visible and invisible laser radiation whenopen. Do not stare into the beam, do not viewdirectly with optical instruments, and avoid directexposure...

General descriptions This chapter includes descriptions for any ThinkPad modelthat has the PC-Doctor DOS diagnostics program. Somedescriptions might not apply to your particular computer. Read this first Before you go to the checkout guide, be sure to read thissection. Important notes v Only certifi...

__ 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...

Related service information This section provides information about the following: v “Service web site” v “Restoring the preloaded system” v “Passwords” on page 26 v “Power management” on page 28 Service web site When the latest maintenance diskette and the systemprogram service diskette become avai...

2. At the prompt, press F11. (The option to press F11 appears for only a few seconds. You must press F11quickly.) The Product Recovery program main menuopens. Note: If you are prompted to select the operating system, select one you want to recover. Thenthe Product Recovery program main menuopens. 3....

Note: Network drivers are not automatically restored with Windows NT 4.0; you will need to reinstallthem. Note: If you use Windows 2000 or Windows 98, restart the system by pressing Ctrl+Alt+Del orby turning the computer off and then on again.The computer will restart with the pre-installedoperating...

v To preload the hard-disk drive without installing theservice partition, press N key. 8. If you get a message asking which operating system to install, select the proper operating system andpress Enter. 9. A message is displayed: “Full Recovery:”. Press Enter to select. 10. On each of the next thre...

Attention: If the user HDP has been forgotten, check whether a master HDP has been set. If it has, it can beused for access to the hard-disk drive. If no master HDP isavailable, IBM does not provide any services to reseteither the user or the master HDP, or to recover data fromthe hard-disk drive. T...

8. Press F10; then, in the Setup confirmation window, select Yes . 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 tothe servicer, IBM does not provide any services to resetthe user HDPs or to recover data...

v The hard-disk drive motor stops. 3. If the time set on the “Turn off monitor” timer in the operating system expires, v The LCD backlight turns off. To end screen blank mode and resume normal operation,press any key. Standby mode When the computer enters standby mode, the followingevents occur in a...

v Turn on the power switch. Also, the computer automatically returns from standbymode and resumes operation in either of the followingevents: v The ring indicator (RI) is signaled by a serial device or aPC Card device (Windows 2000 does not support thering indicator (RI) resume by PC Card device.) v...

v If you are using the ACPI operating system and havedefined one of the following actions as the event thatcauses the system to go into hibernation mode, performthat action.– Closing the lid.– Pressing the power button.– Pressing Fn+F4 keys. Also, the computer goes into hibernation modeautomatically...

Checkout guide Use the following procedures as a guide in identifying andcorrecting problems with the ThinkPad computer. Note: The diagnostic tests are intended to test only IBM products. The use of non-IBM products, prototypecards, or modified options can lead to falseindications of errors and inva...

D i a g n o s t i c s Quit I n t e r a c t i v e Te s t s Hardware Info U t i l i t y F1=Help R u n Q u i c k Te s t R u n N o r m a l Te s t Systemboard CPU/Coprocessor Vi d e o A d a p t e r S e r i a l P o r t s D i s k e t t e D r i v e s F i x e d D i s k s P a r a l l e l P o r t s O t h e r D...

Power system checkout To verify a symptom, do the following:1. Power off the computer.2. Remove the battery pack.3. Connect the ac adapter.4. Check that power is supplied when you power on the computer. 5. Power off the computer.6. Disconnect the ac adapter and install the charged battery pack. 7. C...

Checking operational charging To check whether the battery charges properly duringoperation, use a discharged battery pack or a battery packthat has less than 50% of the total power remaining wheninstalled in the computer. Perform operational charging. If the battery status indicatoror icon does not...

Note: Recharging will take at least 3 hours, even if the indicator does not turn on. If the voltage is still less than +11.0 V dc afterrecharging, replace the battery. 4. If the voltage is more than +11.0 V dc, measure the resistance between battery terminals 4 and 5. Theresistance must be 4 to 30 K...

Product overview This section presents the following product-uniqueinformation: v “Specifications” v “Status indicators” on page 44 v “FRU Tests” on page 46 v “Fn key combinations” on page 48 Specifications The following table lists the specifications of the ThinkPadT20, T21, T22 and T23 series : Fe...

Status indicators The system status indicators show the status of thecomputer, as follows: 1 2 3 4 5 6 7 8 Indicator Meaning 1 Drive in use Green: Data is being read from or writtento the hard-disk drive, the diskettedrive, or the drive in the Ultrabay2000. When this indicator is on, donot put the c...

FRU Tests The following table shows the test for each FRU. FRU Applicable test System board 1. Diagnostics --> CPU/Coprocessor2. Diagnostics --> Systemboard Power Diagnostics --> Other Devices --> IBM ACAdapter, IBM Battery 1 (IBM Battery 2) LCD unit 1. Diagnostics --> Video Adapter2....

Fn key combinations The following table shows the function of each combinationof Fn with a function key. Keycombination Description Fn+F1 Reserved. Fn+F2 Reserved. Fn+F3 Turn off the LCD display, leaving the screenblank. To turn the LCD display on again, pressany key or the TrackPoint stick.Note: To...

Symptom-to-FRU index The symptom-to-FRU index in this section lists symptomsand errors and their possible causes. The most likelycause is listed first, in boldface type. Note: Do the FRU replacement or other actions in the sequence shown in the column headed “FRU oraction, in sequence.” If replacing...

Error messages Symptom or error FRU or action, in sequence Device address conflict. 1. Load “Setup Defaults” in IBM BIOS Setup Utility. 2. Backup battery.3. System board. Allocation error for device. 1. Load “Setup Defaults” in IBM BIOS Setup Utility. 2. Backup battery.3. System board. Failing bits:...

Beep symptoms Symptom or error FRU or action, in sequence One beep and a blank,unreadable, or flashing LCD. 1. Reseat the LCD connector. 2. LCD assembly.3. External CRT.4. System board. One long and two short beeps,and a blank or unreadableLCD. 1. System board.2. LCD assembly.3. DIMM. Two short beep...

Intermittent problems Intermittent system hang problems can be due to a varietyof causes that have nothing to do with a hardware defect,such as cosmic radiation, electrostatic discharge, orsoftware errors. FRU replacement should be consideredonly when a problem recurs. When analyzing an intermittent...

FRU replacement notices This section contains notices related to removing andreplacing parts. Read this section carefully before replacingany FRU. Screw notices Loose screws can cause a reliability problem. In IBMThinkPad computer, this problem is addressed with specialnylon-coated screws that have ...

v Make sure you use the correct screw. If you have atorque screwdriver, tighten all screws firmly to the torqueshown in the table. Never use a screw that youremoved. Use a new one. Make sure the screws aretightened firmly. Retaining serial numbers This section includes the following descriptions: v ...

and stored in the EEPROM of your system board. Thealgorithm that generates the number is designed to provideunique IDs until the year A.D. 3400. No two computers inthe world have the same number. When you replace the system board, you must set theUUID on the new system board as follows: 1. Install t...

Cable routing: When attaching the backup battery to the holder, route the battery cable as in thefollowing figure. Removing and replacing a FRU 62 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

When removing the hard-disk drive, open the LCD a littleas shown in the figure. 2 3 3 4 When installing: Make sure that the HDD connector is firmly connected. Removing and replacing a FRU 64 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

1050 Mini PCI adapter For access, remove this FRU: v “1010 Battery pack” on page 60 For T20, T21 and T22 series Note: Loosen the screw 1 , but do not remove it. 2 1 (continued) Removing and replacing a FRU 66 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

Note: The following illustration shows the combo card. Connector (A) is for the LAN feature and (B) is forthe modem feature. Disconnect either (A) or (B) instep 6 . This slot also supports a Mini PCI modem card or Mini PCI network card. 4 3 4 (A) (B) 6 5 (A) (B) (continued) Removing and replacing a ...

When installing: Make sure not to pinch the connector cable when re-installing the Mini PCIadapter. For T23 series Note: Loosen the screw 1 , but do not remove it. 2 1 (continued) Removing and replacing a FRU 68 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

In step 3a and 3b , pull the tab of the each antenna cables to unplug the cables. 4 3a 4 3b When installing: Plug the gray antenna cable 3a into jack J1 (MAIN), and the black antennacable 3b into jack J2 (AUX). 5 6 When installing: With the notched end of the card toward the socket, insert the card ...

1060 Ethernet daughter card Note This section is only for the following models of T23series; v All models of MT2647 excepting xQx, L4x v All models of MT2648 Other models do not have the Ethernet daughtercard (EDC). For access, remove this FRU: v “1010 Battery pack” on page 60 Note: Loosen the screw...

4 5 6 When installing: Make sure that both of the connectors 4 and 6 are firmly attached. Removing and replacing a FRU 72 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

1070 Ultrabay 2000 device Any of several devices can be inserted into the Ultrabay2000. The procedure for installing and removing is thesame for every device. Ultrabay 2000 also supports Ultrabay Plus device, such asUltrabay Plus carrier. Note: When you release the switch in step 1 the lever pops ou...

1080 Keyboard For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1020 Backup battery” on page 61 v “1030 Hard-disk drive” on page 63 v “1070 Ultrabay 2000 device” on page 73 For T20, T21 and T22 series 1 Step Screw (quantity) Torque 1 M2.5 × 14 mm, nylon-coated (2) 0.392 Nm...

Note: Before installing a new keyboard, attach the easy-button cover as follows: 1 1 2 3 4 (continued) Removing and replacing a FRU 78 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

1090 Keyboard CRU insulator For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1020 Backup battery” on page 61 v “1030 Hard-disk drive” on page 63 v “1070 Ultrabay 2000 device” on page 73 v “1080 Keyboard” on page 74 Note: The shape of the keyboard CRU insulator varies from...

1100 Hinge cover For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1020 Backup battery” on page 61 v “1030 Hard-disk drive” on page 63 v “1070 Ultrabay 2000 device” on page 73 v “1080 Keyboard” on page 74 v “1090 Keyboard CRU insulator” on page 82 Note: Step 1 is common fo...

For T20 and T21 series a a 3 4 2 Step Screw (quantity) Torque 2 M2.5 × 4.8 mm, nylon-coated (1) 0.392 Nm(4 kgfcm) When installing:1. Install the hinge cover according to the step 3 , 4 and then tighten the screw 2 . In step 3 , take care not to damage the lens. 2. Make sure that both latches a are f...

For T22 series 2 3 Step Screw (quantity) Torque 2 M2.5 × 14 mm, nylon-coated (1) 0.392 Nm(4 kgfcm) (continued) Removing and replacing a FRU ThinkPad T20, T21, T22 and T23 series 85

1120 Fan assembly For T20, T21, T22 series For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1020 Backup battery” on page 61 v “1030 Hard-disk drive” on page 63 v “1070 Ultrabay 2000 device” on page 73 v “1080 Keyboard” on page 74 v “1090 Keyboard CRU insulator” on page 82...

When installing the fan assembly: For T20Remove the protective sheet from the thermal rubberon the fan assembly. For T21, T22Apply the thermal grease (05K5751) on the a -part of the fan as shown in the following figure. a Removing and replacing a FRU ThinkPad T20, T21, T22 and T23 series 95

4 5 6 Step Screw (quantity) Torque 4 M2.0 × 13.5 mm, nylon-coated (3) 0.245 Nm(2.5 kgfcm) When installing: Apply the thermal grease (05K5751) on the a -part of the fan as shown in the following figure. a Removing and replacing a FRU ThinkPad T20, T21, T22 and T23 series 97

For T23 series Note: The shape of the CPU socket vary from model to model. When removing or installing the CPU,confirm the shape of the CPU socket and do eithersteps 1 , 2 and a or steps 1' , 2 and a' . Rotate the head of the screw to the direction of the arrow 1 or 1' to release the lock and then r...

When installing: Make sure the followings: v a -parts of the insulation do not come off. v b -part ( b' s are only for T23 series) is not turned over. v Holes in the guide rail and in the aluminium sheet arealigned, and the aluminium sheet does not protrude inthe c -parts. The protruding parts of th...

1170 Ultrabay 2000 slot For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1020 Backup battery” on page 61 v “1030 Hard-disk drive” on page 63 v “1070 Ultrabay 2000 device” on page 73 v “1080 Keyboard” on page 74 v “1090 Keyboard CRU insulator” on page 82 v “1100 Hinge cove...

For T21 and T22 series 1 2 Note: T21 series do not have the removal procedure 3 and 4 . After step 2 , go to step 5 . When installing: Make sure that the FPC connector is firmly attached. (continued) Removing and replacing a FRU 108 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

4 Note: The models with 13.3-in. XGA LCD in T20 series and in T21 series do not have FPC bracket ( 5 ). For those models, skip step 5 . 5 a When installing: Make sure that the FPC bracket is firmly attached as shown in the figure a . (continued) Removing and replacing a FRU 110 ThinkPad T20, T21, T2...

Note: Step 6 to step 9 are common for T20, T21, T22 and T23 series. 6 Step Screw (quantity) Torque 6 M2.5 × 4.8 mm, nylon-coated (1) 0.392 Nm(4 kgfcm) 9 8 7 Step Screw (quantity) Torque 7 M2 × 13.5 mm, nylon-coated (2) 0.245 Nm(2.5 kgfcm) 8 M2.5 × 4.8 mm, nylon-coated (2) 0.392 Nm(4 kgfcm) Removing ...

When installing: Make sure that the guide of the slot is firmly attached 1 and if the eject lever has been poped out, push it back in thedirection of arrow 2 until it snaps, and then push the upper-right corner of theslot 3 to fix it firmly. 1 2 3 Removing and replacing a FRU 112 ThinkPad T20, T21, ...

When installing: Make sure that all of the guides are firmly attached 1 and you have fastened the connector firmly to theunderside of the system board 2 . 2 1 1 1 Removing and replacing a FRU 114 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

1190 Secure chip Note This section is only for the following models; v MT2647-5Lx, 9Lx, DLT, HLU v MT2647-5Dx, 5Fx, 5Hx, 5Jx, 5Nx, 5Mx, 9Dx, 9Fx,9Hx, 9Jx, 9Nx, 9Mx, DFx, HNx, NNx v MT2647-5Rx, 5Sx, 5Ux, 9Rx, 9Sx, 9Ux, HSU Other models do not have the secure chip. For access, remove these FRUs, in or...

1200 Microphone cable For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1020 Backup battery” on page 61 v “1030 Hard-disk drive” on page 63 v “1040 DIMM” on page 65 v “1050 Mini PCI adapter” on page 66 v “1070 Ultrabay 2000 device” on page 73 v “1080 Keyboard” on page 74 v...

2030 Inverter card For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1020 Backup battery” on page 61 v “1030 Hard-disk drive” on page 63 v “1070 Ultrabay 2000 device” on page 73 v “1080 Keyboard” on page 74 v “1090 Keyboard CRU insulator” on page 82 v “1100 Hinge cover” on...

2040 LCD panel For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1020 Backup battery” on page 61 v “1030 Hard-disk drive” on page 63 v “1070 Ultrabay 2000 device” on page 73 v “1080 Keyboard” on page 74 v “1090 Keyboard CRU insulator” on page 82 v “1100 Hinge cover” on pag...

Cable routing: When installing the LCD, route the connector cable as in the following figure: Removing and replacing a FRU ThinkPad T20, T21, T22 and T23 series 127

3010 ThinkPad Dock PCI cover Before replacing the PCI cover:There are two types of ThinkPad Dock, as follows: v ThinkPad Dock: FRU no. 08N1546 (PCI cover: FRU no.05K6246) v ThinkPad Dock with extension plate: FRU no. 08N1537(PCI cover: FRU no. 08N7317) Confirm the FRU no. of the ThinkPad Dock first ...

Note: The following illustration shows how to remove the PCI cover of ThinkPad Dock (FRU no. 08N1546).Do the same to remove the PCI cover of ThinkPadDock with extension plate (FRU no. 08N1537). 1 2 1 (Bottom view) Removing and replacing a FRU 134 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

3020 ThinkPad Dock top cover Note This section is only for the ThinkPad Dock (FRU no.08N1546). The top cover and screw kit for ThinkPadDock (FRU no. 12P4143) is not available for theThinkPad Dock with extension plate (FRU no.08N1537) . 1 (Rear view) Step Screw (quantity) Torque 1 M2.5 × 4.8 mm (2) 0...

Make sure that the system lock key A is set to the Unlockposition. Release the front latches in step 3 , and then remove the top cover 4 . For step 5 , see the inside view, shown in the circle. 5 4 3 A Removing and replacing a FRU ThinkPad T20, T21, T22 and T23 series 137

v Make sure that the release button works correctly. Removing and replacing a FRU ThinkPad T20, T21, T22 and T23 series 139

Locations Front view 1 System status indicators 2 Power switch 3 Battery, standby mode, and Ultrabay statusindicators 4 Bay latch 5 Eject button 6 Ultrabay 2000 device Note: The Ultrabay 2000 accepts storage devices, such as a DVD drive or a CD-ROM drive. 7 TrackPoint pointing stick 8 TrackPoint but...

Rear view 1 Security keyhole 2 TV-out connector 3 Serial connector 4 Parallel connector 5 External-monitor connector 6 Modem connector 7 Ethernet connector 8 Power jack 9 Universal serial bus (USB) connector Note: T23 series have two USB connectors. 10 External-input-device connector 1 10 9 8 7 6 5 ...

Bottom view 1 Built-in stereo speakers 2 Battery pack 3 Battery pack latches 4 Docking connector 5 Mini PCI card slot 6 DIMM 7 PC card slots 8 PC card eject button 9 Infrared port 10 Stereo headphone jack 11 Stereo line-in jack 12 Microphone jack 13 Hard-disk drive 14 LCD latches 2 3 4 5 6 8 7 9 10 ...

Overall For T20, T21 and T22 1 a b 2 3 4 5 7 6 9 8 10 11 12 1514 k l 16 19 18 17 20 21 22 23 24 13 c d e f g j h i Parts list ThinkPad T20, T21, T22 and T23 series 147

No. FRU P/N 24 Ethernet daughter card (Ambit) OP for all models except 2647-xQx 26P8181 25 Secure chip OP for 2647-5xx except 5Kx, 9xx except 9Kxfor 2647-HNx, xLx 26P8084 — Telephone cable (SAN TAI) 27L0603 — Recovery CD (see “Recovery CDs” on page 161.) — AC adapter* (see “AC adapters”.) AC adapter...

LCD FRUs 7 5 4 4 3 2 1 5 6 Notes:1. The parts marked with are only for 13.3-in. LCD cover kit. 2. 5 is for the models with 14.1-in. XGA TFT with antenna and for the models with 14.1-in. SXGA+ TFT withantenna. 3. 6 is only for 2647-52x, 92x, C2x, L1x. 13.3-in. XGA TFT No. FRU P/N 1 LCD cover kit (13....

Keyboard Language P/N (NMB) P/N(ALPS) Arabic 02K5750* — Belgian 02K5745* — Chinese, traditional 02K5747* 02K5718* Czech 02K5751* — Danish 02K5738* — Dutch 02K5735* — English, U.K. 02K5731* — English, U.S. 02K5729* — French, Canadian 02K5732* — French, European 02K5734* — German 02K5733* — Greek 02K5...

Recovery CDs For Windows 98 (T22 series) Language P/N Arabic 14P9515* Chinese, Simplified 27P2112* Chinese, Traditional 27P2110* Czech 14P9516* Danish 23P9240* Dutch 23P9247* English, U.K. 23P9236* English, U.S. 23P9235* Finnish 23P9246* French, Canadian 23P9237* French, European 23P9241* German 23P...

Miscellaneous parts Italicized letters in parentheses are reference to theexploded view on page 147 and 152. FRU P/N Screw kit (including nylon-coated screws) for T20,T21, T22 and T23 series: v M2.5 x 14 mm, bind head (15) v M2.5 x 11.5 mm, flat head (5) v M2.5 x 4.8 mm, flat head (20) v M2.5 x 3.5 ...

FRU P/N System board miscellaneous parts for T23 series: v System board stud v System board stud (long) v System board stud (back) v Insulator, PC card v Insulator, battery latch v Keyboard connector guide v Shock rubber v Insulator, docking connector v Insulator, Ultrabay 2000 bay connector v Insul...

Common parts list Tools Triconnector wrap plug 72X8546 PC test card 35G4703 Audio wrap cable 66G5180 USB parallel test cable 05K2580 Screwdriver kit 95F3598 Torque screwdriver 05K4695 5 mm socket wrench 05K4694 Screwdriver 27L8126 ThinkPad hardware maintenance diskette version1.62Note: Download the ...