IBM A20M - Manuals

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 multi-lingual,translated safety notice found in this section. The following safety notices are provided in English,French, German, Italian, and Spanish languages....

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...

Safety information The following section contains the safety information thatyou need to be familiar with before servicing an IBMmobile computer. General safety Follow these rules to ensure general safety: v Observe good housekeeping in the area of themachines during and after maintenance. v When li...

Electrical safety Observe the following rules when working on electricalequipment. Important Use only approved tools and test equipment. Somehand tools have handles covered with a softmaterial that does not insulate you when workingwith live electrical currents. Many customers have, near their equip...

Observe the special safety precautions when you workwith very high voltages; these instructions are in thesafety sections of maintenance information. Useextreme care when measuring high voltages. v Regularly inspect and maintain your electrical hand toolsfor safe operational condition. v Do not use ...

v Mechanical hazards, such as loose or missing hardware To determine whether there are any potentially unsafeconditions, use the following checklist at the beginning ofevery service task. Begin the checks with the power off,and the power cord disconnected. Checklist:1. Check exterior covers for dama...

v Wear a grounded wrist strap against your skin toeliminate static on your body. v Prevent the part from touching your clothing. Mostclothing is insulative and retains a charge even whenyou are wearing a wrist strap. v Use the black side of a grounded work mat to provide astatic-free work surface. T...

DANGER Emits visible and invisible laser radiation whenopen. Do not stare into the beam, do not viewdirectly with optical instruments, and avoid directexposure to the beam. Radiação por raio laser ao abrir. Não olhe fixo nofeixe de luz, não olhe diretamente por meio deinstrumentos óticos e evite exp...

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...

__ 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 the warranty period, the customer may beresponsible for repair costs if the ...

Related service information This section provides information about the following: v “Service web site” v “Product recovery program” v “Passwords” on page 27 v “Power management” on page 30 Service web site When the latest maintenance diskette and the systemprogram service diskette become available,...

Creating the service partition: To create the Service Partition and install the preloadedsystem from the Recovery CD, do the following: To create the Service Partition (SP):1. Erase all partitions on the hard-disk drive, using FDISK or a similar application. 2. Boot with the Recovery CD (and the boo...

Recovery Repair diskette. Make a Recovery Repairdiskette and save it for future use. To make a RecoveryRepair diskette:1. Shut down and turn off the computer.2. Attach the external diskette drive to the computer.3. At the prompt, press F11. (The option to press F11 appears for only a few seconds. Yo...

Power-on password: A power-on password (POP) protects the system frombeing powered on by an unauthorized person. Thepassword must be entered before an operating system canbe booted. Hard-disk password: There are two hard-disk passwords (HDPs): v User HDP—for the user v Master HDP—for the system admi...

For how to remove the battery pack, see “1010 Batterypack” on page 60. 3. Remove the backup battery. For how to remove the backup battery, see “1040Backup battery” on page 66. 4. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does notappear. The POP has b...

Power management To reduce power consumption, the computer has threepower management modes: screen blank, standby, andhibernation. Notes v Screen blank mode is called standby mode inWindows 95 and Windows NT. v Standby mode is called suspend mode inWindows 95 and Windows NT. Screen blank mode Screen...

v If the battery indicator blinks orange, indicating that thebattery power is low. (Alternatively, if Hibernate whenbattery becomes low has been selected in the “PowerManagement Properties” window, the computer goesinto hibernation mode.) Note for the APM operating system:Even if you do not set the ...

Note for OS/2 If you are using OS/2 in the default format, HPFS,you cannot create a hibernation file. If you want touse hibernation mode, you will need to reinstallOS/2 with FAT format. In hibernation mode, the following occurs: v The system status, RAM, VRAM, and setup data arestored on the hard di...

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...

If an error code appears, go to “Symptom-to-FRUindex” on page 49. On the first screen, select the model and press Enter.Follow the instructions on the screen. 2. The main panel of PC-Doctor appears.3. Select Diagnostics with the arrow keys, and press Enter. A pull-down menu appears. (Its exact form ...

5. Follow the instructions on the screen. If there is a problem, PC-Doctor shows messages describing it. 6. To exit the test, select Quit — Exit Diag. To cancel the test, press Esc. Note: After executing PC-Doctor, check the system time/date and reset them if needed. Detecting system information wit...

v “Checking the ac adapter” v “Checking operational charging” v “Checking the battery pack” on page 37 v “Checking the backup battery” on page 37 Checking the ac adapter You are here because the computer fails only when the acadapter is used: v If the power problem occurs only when the portreplicato...

Checking the battery pack Battery charging does not start until the Power Metershows that less than 95% of the total power remains;under this condition the battery pack can charge to 100%of its capacity. This protects the battery pack from beingovercharged or from having a shortened life. To check t...

3. Remove the battery pack (see “1010 Battery pack” on page 60 ). 4. Remove the backup battery (see “Checking the battery pack” on page 37). 5. Measure the voltage of the backup battery. See the following figure. Red (+) Black (-) Wire Voltage (V dc) Red +2.5 to +3.2 Black Ground v If the voltage is...

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 ThinkPadA20m/p, A21m/p and A22m/p series:...

Status indicators The system status indicators show the status of thecomputer, as follows: Indicator Meaning 1 Battery Green: The battery is fully charged. Blinking green: The battery has enough power tooperate, but is being charged. Orange: The battery power is low. The batteryis to being charged. ...

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. F...

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: nnn...

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 ...

1020 DIMM For access, remove this FRU: v “1010 Battery pack” on page 60 Note: Loosen the screw 1 , but do not remove it. (continued) Removing and replacing a FRU ThinkPad A20m/p, A21m/p and A22m/p 61

When installing: With the notched end of the DIMM toward the socket, insert the DIMM intothe socket, then press it firmly. Pivot theDIMM until it snaps into place. Makesure that the card is firmly fixed in theslot and does not move easily. Removing and replacing a FRU 62 ThinkPad A20m/p, A21m/p, A22...

For A20m/p, A21m/p series Note: The illustration shows the combo card. Connector (A) is for the LAN feature and (B) is for the modemfeature. This slot also supports a Mini PCI modemcard or Mini PCI network card. Step 5 depends on the card type. Disconnect either (A), (B) or both. When installing the...

For A22m/p series Note: The illustration shows the combo card. Connector (A) is for the LAN feature and (B) is for the modemfeature. This slot also supports a Mini PCI modemcard or Mini PCI network card. Step 4 depends on the card type. Disconnect either (A), (B) or both. When installing: With the n...

1050 Hard-disk drive or RF ID adapter Attention Do not drop or apply any shock to the hard-diskdrive. The hard-disk drive is sensitive to physicalshock. Incorrect handling can cause damage andpermanent loss of data. Before removing the drive, have the user make abackup copy of all the information on...

When installing: Make sure that the HDD connector is firmly connected. Removing and replacing a FRU 68 ThinkPad A20m/p, A21m/p, A22m/p

1060 Ultrabay 2000 device Any of several devices can be inserted into the Ultrabay2000. The procedure for installing and removing is thesame for every device. Note: When you release the switch in step 1 the lever pops out. Pull the lever a little in step 2 to release the device from the bay. (contin...

1070 Keyboard For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1050 Hard-disk drive or RF ID adapter” on page 67 v “1060 Ultrabay 2000 device” on page 69 1 Step Screw (quantity) Torque 1 M2.5 × 15 mm, nylon-coated (3) 0.392 Nm(4 kgfcm) (continued) Removing and replacing a...

When installing: When installing the keyboard, do as follows: 1. Install the new keyboard, following the directions in the figure. Make sure that the keyboard edges, shown inthe figure as (A), (B), and (C), are under the frame. 2. Push the Y key 1 to connect the keyboard to the connector on the unde...

1080 Keyboard CRU insulator For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1050 Hard-disk drive or RF ID adapter” on page 67 v “1060 Ultrabay 2000 device” on page 69 v “1070 Keyboard” on page 71 Removing and replacing a FRU 74 ThinkPad A20m/p, A21m/p, A22m/p

1090 Hinge cover and clear sheet icon For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1050 Hard-disk drive or RF ID adapter” on page 67 v “1060 Ultrabay 2000 device” on page 69 v “1070 Keyboard” on page 71 v “1080 Keyboard CRU insulator” on page 74 Step Screw (quantity) ...

1100 Keyboard bezel and speaker For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1050 Hard-disk drive or RF ID adapter” on page 67 v “1060 Ultrabay 2000 device” on page 69 v “1070 Keyboard” on page 71 v “1080 Keyboard CRU insulator” on page 74 v “1090 Hinge cover and clea...

Step Screw (quantity) Torque 2 M2.5 × 15 mm, nylon-coated (2) 0.392 Nm(4 kgfcm) Cable routing: When replacing the cable, see the preceding figure for its cable routing. Removing and replacing a FRU ThinkPad A20m/p, A21m/p and A22m/p 77

1110 Microphone and speaker cable For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1050 Hard-disk drive or RF ID adapter” on page 67 v “1060 Ultrabay 2000 device” on page 69 v “1070 Keyboard” on page 71 v “1080 Keyboard CRU insulator” on page 74 v “1090 Hinge cover and cl...

Installation notice for A21m/p and A22m/p series When installing the fan assembly, apply the thermal grease(05K5751) on the a -part of the fan as shown in the following figure. Removing and replacing a FRU 84 ThinkPad A20m/p, A21m/p, A22m/p

Notes: 1. The heatpipe A and the screw 1a are for the MT2628-Fxx, Gxx, Pxx, Qxx, Rxx, Sxx, Txx, Xxx,MT2633-Gxx, Txx, and MT2629. Other models do nothave them. 2. Step 4 (diskette drive spacer) is only for MT2629. Other models do not have the spacer. Remove itgently; it will be reused when installing...

1170 TV card Note This section is only for MT2628-Fxx,-Gxx, -Sxx,-Txx,MT2633-Gxx,-Txx, and MT2629. Other models donot have the TV card. For access, remove these FRUs, in order: v “1010 Battery pack” on page 60 v “1050 Hard-disk drive or RF ID adapter” on page 67 v “1060 Ultrabay 2000 device” on page...

When installing the CPU, do as shown in the figure. v Rotate the screw head (A) 180° to the direction of thearrow b to lock the CPU. v When attach the CPU to the socket, do as shown in thestep c . Removing and replacing a FRU 90 ThinkPad A20m/p, A21m/p, A22m/p

Note: Step 4 (thermal rubbers) are only for MT2628-Pxx, -Qxx, -Rxx, -Sxx, -Txx, -Xxx, andMT2629-Hxx, -Uxx. When replacing the systemboard for those models, remove the thermal rubbersfrom the removed system board and put them ontothe new system board. And then install the newsystem board to the base ...

Thermal rubbers location Before installing the new system board, make sure that thethermal rubbers are placed on the system board as shownin the following figures. For A21m/p seriesUpper side of the system board Bottom side of the system board For A22m/p seriesUpper side of the system board Removing...

Note: Only the front bezel for the 15.0-in. XGA TFT (LG) has a identifying mark ( V ), as in the following figure. For the FRU list, see “15.0-in. XGA TFT(LG)” on page 138. Removing and replacing a FRU 98 ThinkPad A20m/p, A21m/p, A22m/p

3010 ThinkPad Dock PCI cover Before replacing the PCI cover:There are two types of ThinkPad Dock as follows: v ThinkPad Dock: FRU part no. 08N1546 (PCI cover: FRUpart no. 05K6246) v ThinkPad Dock with extension plate: FRU part no.08N1537 (PCI cover: FRU part no. 08N7317) Make sure that the PCI cover...

Note: Following illustration shows the PCI cover removal of ThinkPad Dock (FRU no. 08N1546.) Do thesame procedure for the PCI cover removal ofThinkPad Dock with extension plate (FRU part no.08N1537.) 1 2 1 (Bottom view) Removing and replacing a FRU 106 ThinkPad A20m/p, A21m/p, A22m/p

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

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 A20m/p, A21m/p and A22m/p 109

v Make sure that the release button works correctly. Removing and replacing a FRU ThinkPad A20m/p, A21m/p and A22m/p 111

Locations Front view 1 System status indicators 2 Battery and standby mode status indicators 3 Built-in stereo speakers 4 PC Card eject button 5 PC Card slots 6 Bay latch 7 Eject button 8 Ultrabay 2000 device Note: The Ultrabay 2000 accepts storage devices, such as a DVD drive or aCD-ROM drive. 9 Vi...

Rear view 1 Security keyhole 2 Parallel connector 3 Modem connector 4 Network connector 5 Serial connector 6 External-monitor connector 7 Universal serial bus (USB) connector 8 External-input-device connector 9 Power jack Locations ThinkPad A20m/p, A21m/p and A22m/p 113

Bottom view 1 Battery pack 2 Battery pack latches 3 Mini PCI card slot 4 Docking connector 5 DIMM slot 6 Stereo headphone jack 7 Stereo line-in jack 8 Diskette drive 9 Microphone jack 10 Infrared port 11 Hard-disk drive 12 LCD latches Locations 114 ThinkPad A20m/p, A21m/p, A22m/p

Overall 1 7 6 12 2 8 3 45 10 11 13 15 16 17 18 19 20 21 23 23 28a 28b 27 32 14 22 24 25 26 29 30 31 9 a 33 Parts list ThinkPad A20m/p, A21m/p and A22m/p 123

AC adapter All of the AC adapters listed below are CRUs (customerreplaceable units.) FRU P/N AC adapter (72 W), 2-pin (ASTEC) models xxE, xxF, xxJ, xxP, xxS, xxU, xxX 02K6669 AC adapter (72 W), 2-pin (DELTA) models xxE, xxF, xxJ, xxP, xxS, xxU, xxX 02K6673 AC adapter (72 W), 2-pin (SANKEN) models xx...

Keyboard All of the keyboards listed below are CRUs (customerreplaceable units.) Language P/N A20m/p A21m/p A22m/p Arabic 02K5051 02K5476 Belgian 02K5045 02K5470 Canadian French 02K5035 02K5456 Chinese, traditional 02K5057 02K5459 Czech 02K5055 02K5480 Danish 02K5042 02K5467 Dutch 02K5039 02K5464 En...

Recovery CDs For Windows 98 (A22m) Language P/N Arabic 23P8930 Chinese, Simplified 27P2266 Chinese, Traditional 27P2261 Czech 23P8931 Danish 23P8897 Dutch 23P8904 English, U.S. 23P8892 English, U.K. 23P8893 Finnish 23P8903 French, Canadian 23P8894 French, European 23P8898 German 23P8899 Greek 23P893...

Miscellaneous parts FRU P/N Screw kit (including nylon-coated screws): v M2 x 3.6 mm, flat head (3) v M2 x 5.1 mm, flat head (5) v M2 x 5.7 mm, flat head (5) v M2 x 16 mm, bind head (3) v M2.5 x 4.8 mm, flat head (42) v M2.5 x 5.5 mm, flat head (2) v M2.5 x 15 mm, flat head (15) v M2.6 x 2.8 mm, bin...

Optional FRUs FRU P/N Ultrabay 2000 SuperDisk drive 05K9235 ZIP-250 00N8254 Multiple battery charger 02K6642 Ultrabay 2000 2nd HDD adapter 08K6067 Ultrabay 2000 battery 02K6645 UltraPort camera for MT2629 02K5153 IBM tripod 08K6449 UltraPort adapter and connector cover 08K6105 USB cable attachment 0...

Common parts list Tools Tools P/N 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: Dow...