IBM THINKPAD A20M User Manual

IBM Mobile SystemsThinkPad ComputerHardware Maintenance ManualOctober 2001This manual supports:ThinkPad A20m, A21m, A22m(MT 2628/2633)A20p, A21p, A22p

Safety notice 2DANGERSome standby batteries contain a small amount ofnickel and cadmium. Do not disassemble a standbybattery, recharge it, throw it in

2010 LCD assemblyFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67v “1060 U

Step Screw (quantity) Torque2 M2.6 × 2.8 mm, nylon-coated (2) 0.392 Nm(4 kgfcm)4 M2.5 × 4.8 mm, nylon-coated (2) 0.392 Nm(4 kgfcm)Removing and rep

2020 Front bezelFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67v “1060 Ul

14.1-in. and 15.0-in. panelsStep Screw (quantity) Torque1 M2.5 × 4.8 mm, nylon-coated (2) 0.392 Nm(4 kgfcm)Removing and replacing a FRUThinkPad A20m

Note: Only the front bezel for the 15.0-in. XGA TFT (LG)has a identifying mark (V), as in the followingfigure. For the FRU list, see “15.0-in. XGA TFT

2030 Inverter cardFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67v “1060

14.1-in. and 15.0-in. panelsStep Screw (quantity) Torque1 M2.5 × 4.8 mm, nylon-coated (1) 0.392 Nm(4 kgfcm)Removing and replacing a FRU100 ThinkPad

2040 LCD panelFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67v “1060 Ultr

(continued)Removing and replacing a FRU102 ThinkPad A20m/p, A21m/p, A22m/p

14.1-in. and 15.0-in. panelsStep MT Screw (quantity) Torque1 2628-Fxx, Pxx,Rxx, 3xxM2 × 5.7 mm,nylon-coated (4)0.245 Nm(2.5 kgfcm)2628-Exx, Gxx,Xxx,

(continuation of safety notice 2)Alcune batterie di riserva contengono una piccolaquantità di nichel e cadmio. Non smontarle,ricaricarle, gettarle nel

v For the 14-in. LCD, the LCD cable is taped onto theconnector. Tear off the tape before disconnecting theLCD cable in step 4.v The LCD cable for th

3010 ThinkPad Dock PCI coverBefore replacing the PCI cover:There are two types of ThinkPad Dock as follows:v ThinkPad Dock: FRU part no. 08N1546 (PCI

Note: Following illustration shows the PCI cover removalof ThinkPad Dock (FRU no. 08N1546.) Do thesame procedure for the PCI cover removal ofThinkPad

3020 ThinkPad Dock top coverNoteThis section is only for the ThinkPad Dock (FRU no.08N1546.) Top cover and screw kit for ThinkPadDock (FRU part no. 12

222(Bottom view)Step Screw (quantity) Torque2 M2.5 × 4.8 mm (8) 0.392 Nm(4 kgfcm)(continued)Removing and replacing a FRU108 ThinkPad A20m/p, A21m/p,

Make sure that the system lock key A is set to the Unlockposition. Release the front latches in step 3, and thenremove the top cover 4. For step 

When replacing the top cover, do the following:v Make sure that the springs placed correctly.v Make sure that the device release lever is seatedcorrec

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

LocationsFront view1 System status indicators2 Battery and standby mode status indicators3 Built-in stereo speakers4 PC Card eject button5 P

Rear view1 Security keyhole2 Parallel connector3 Modem connector4 Network connector5 Serial connector6 External-monitor connector7 Unive

Safety notice 3DANGERThe battery pack contains small amounts of nickel.Do not disassemble it, throw it into fire or water, orshort-circuit it. Dispose

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

Parts listA series model matrixThe A series includes several models. The following tablesummarizes the characteristics of each model, to help youdeter

Model CPU BaydeviceMini PCIadapterLCD HDDA20m (Memory, 64 MB; Video memory, 8 MB)2628-31xexcept 31J, 31K2628-32xexcept 32J, 32KCel500CD-ROMModem 15.0-

Model CPU BaydeviceMini PCIadapterLCD HDDA20m (Memory, 64 MB; Video memory, 8 MB)2628-4Lx*1CM700GCD-ROMModem 14.1-in.XGA12 GB2628-4Sx, 4Tx Combo(Intel

Model CPU BaydeviceMini PCIadapterLCD HDDA21m (Memory, 64 MB; Video memory, 4 MB)2628-C1x, C2x Cel600CD-ROMModem 12.1-in.SVGA10 GB2628-C4x Combo(Intel

Model CPU BaydeviceMini PCIadapterLCD HDDA21m (Memory, 64 MB; Video memory, 8 MB)2628-F1x, F2xexcept F2JCM750GCD-ROMModem 15.0-in.XGA20 GB2628-F2J Eth

Model CPU BaydeviceMini PCIadapterLCD HDDA21p (Memory, 128 MB; Video memory, 16 MB)2629-H1x, H2xexcept H2JCM850GDVD-ROMModem 15.0-in.UXGA32 GB2629-H2J

Model CPU BaydeviceMini PCIadapterLCD HDDA22m (Memory, 64 MB; Video memory, 8 MB)2628-S1xexcepting S1J2628-S2xexcepting S2JCM900GDVD-ROMModem 15.0-in.

Model CPU BaydeviceMini PCIadapterLCD HDDA22p (Memory, 128 MB; Video memory, 16 MB)2629-Y1xexcept Y1J2629-Y2xexcept Y2JCM900GCD-R/W Modem 15.0-in.UXGA

Overall176122834510111315161718192021232328a28b273214222425262930319a33Parts listThinkPad A20m/p, A21m/p and A22m/p 123

(continuation of safety notice 3)Las baterías contienen pequeñas cantidades deníquel. No las desmonte, ni recargue, ni las eche alfuego o al agua ni l

v Each FRU is available for all types/models, unlessspecific types or models are given.v The FRUs marked with asterisk are CRUs (customerreplacable un

No. FRU P/N4 Keyboard bezel for 12.1/14.1-in. LCD models2628-1xx, 2xx, 4xx, Dxx, Exx, Gxx, Qxx,Txx except xxK2628-Bxx, Xxx2633-4xx, Gxx, Txx except xx

No. FRU P/N9 Fan assembly2628-Cxx, Dxx, Exx, Jxx 04P34822628-Fxx, Gxx, Pxx, Qxx, Rxx2633-Gxx2629-Fxx, Gxx, Hxx04P34832628-Sxx, Txx, 2629-Uxx, 2633-Txx

No. FRU P/N12 Mini PCI adapterMini PCI modem card (Ambit) for A20m/p,A21m/p2628-11x, 12x, 21x, 22x, 31x, 32x, 41x,42x, 44x, 47x, 48x, 4Dx, 4Ex, 4Fx, 4

No. FRU P/N13 Base cover for A20m2628-1xx, 2xx, 3xx, 4xx except xxK, xxT,2628-Bxx04P34102628-1xK, 2xK, 3xK, 4xK 04P34122628-1xT, 2xT, 3xT, 4xT 04P3411

No. FRU P/N14 Blank cap RJ452628-x1x, x2x, x4x except xxJ, xxK2628-xAx, xCx except xxJ, xxK2628-3JC, 3KC, 4Lx2628-47G, 48G, 4DC, 4EC, 4FC, 4GC,4HC, 4I

No. FRU P/N15 Ultrabay 2000 deviceDVD-ROM drive 8x (MKE) OP2628-Exx, Gxx2628-Rxx except RAx, Sxx, Txx, Xxx2629-Exx, Gxx, Hxx2629-UUx2633-Txx27L3447D

No. FRU P/N17 Battery pack (6 cell)SANYO Li-Ion (ECO)2628-xxE, xxJ2628-DxJ, ExJ, FxJ, GxE, GxJ, IxJ2628-xxJ except CxJ, JxJ2633-DxJ, ExJ, FxJ, GxE, Gx

No. FRU P/N19 Hard-disk drive (18.0 GB), STD OP2628-3JC, 3KC2629-6xx except 60U27L4073Hard-disk drive (20.0 GB), STD OP2628-Qxx, Rxx, Sxx, Xxx, T7

No. FRU P/N21 System board for A21Video memory 8 MB2628-Gxx, Fxx, 2633-Gxx08K3264Video memory 16 MB2629-Hxx08K3265System board for A22without Video me

Safety notice 4DANGERThe lithium battery can cause a fire, an explosion,or a severe burn. Do not recharge it, remove itspolarized connector, disassemb

No. FRU P/N24 CPU, Celeron 500 MHz2628-1xx, 3xx, 47x, 48x08K3149CPU, Celeron 550 MHz2628-1Ax, 1Cx, 1Ux, 1Vx, 1ZU, 3Ax, 3Cx,3Ux, 3Vx, 3ZU08K3211CPU, Pe

No. FRU P/N27 Spacer, diskette drive for 2629 04P322528a Microphone/speaker cable for A20m/A20p,A21m/A21p2628-1xx, 2xx, 3xx, 4xx, Bxx, Dxx, Exx,Fxx, G

AC adapterAll of the AC adapters listed below are CRUs (customerreplaceable units.)FRU P/NAC adapter (72 W), 2-pin (ASTEC)models xxE, xxF, xxJ, xxP, x

14.1-in. XGA TFTFollowing FRUs are available for MT2628-4xx, Exx, Gxx,Txx, Xxx, MT2633-4xx, Gxx, Txx.FRU P/NLCD cover assembly 14.1 XGA2628-4xx, Exx e

15.0-in. XGA TFT (LG)Following FRUs are available for MT2628-3xx, Jxx, Pxx,Rxx.FRU P/NLCD cover assembly 15.0 XGA2628-3xx, Jxx except xxK (without hea

15.0-in. SXGA+ TFTFollowing FRUs are available for MT2628-Sxx and2629-6xx.FRU P/NLCD cover assembly2628-Sxx except SxK (with heatpipe LM) 26P92102628-

KeyboardAll of the keyboards listed below are CRUs (customerreplaceable units.)Language P/NA20m/p A21m/p A22m/pArabic 02K5051 02K5476Belgian 02K5045 0

Recovery CDsFor Windows 98 (A22m)Language P/NArabic 23P8930Chinese, Simplified 27P2266Chinese, Traditional 27P2261Czech 23P8931Danish 23P8897Dutch 23P

For Windows 98 (A22p)Language P/NArabic 23P9062Arabic (modem enabled) 14P9553Chinese, Simplified 27P2256Chinese, Traditional 27P2251Czech 23P9063Danis

For Windows 2000 (A22m)Language P/NChinese, Simplified 27P2268Chinese, Traditional 27P2263For Windows 2000 (A22p)Language P/NChinese, Simplified 27P22

(continuation of safety notice 4)La batteria di supporto e una batteria al litio e puoincendiarsi, esplodere o procurare gravi ustioni.Evitare di rica

For Windows 2000/Windows NT (A22p)Language P/NArabic 23P9134Arabic (modem enabled) 14P9558Czech 23P9135Danish 23P9089Dutch 23P9096English, U.S. 14P957

Miscellaneous partsFRU P/NScrew 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 (

FRU P/NSystem miscellaneous parts (for A22m/p):v Keyboard stopperv Door, PC card slotsv Door, PC card 1 slotv Spring, PC card slots doorv Lens, LED hi

Optional FRUsFRU P/NUltrabay 2000 SuperDisk drive 05K9235ZIP-250 00N8254Multiple battery charger 02K6642Ultrabay 2000 2nd HDD adapter 08K6067Ultrabay

Common parts listToolsTools P/NTriconnector wrap plug 72X8546PC test card 35G4703Audio wrap cable 66G5180USB parallel test cable 05K2580Screwdriver ki

Power cords (docking station)IBM power cords for a specific country are usuallyavailable only in that region:For 3-pin power cords:Region P/NArgentina

NoticesReferences in this publication to IBM products, programs,or services do not imply that IBM intends to make theseavailable in all countries in w

NoticesThinkPad A20m/p, A21m/p and A22m/p 151

Part Number: 23P0896(1P) P/N: 23P0896

Safety notice 5If the LCD breaks and the fluid from inside the LCDgets into your eyes or on your hands, immediatelywash the affected areas with water

Safety notice 6DANGERTo avoid shock, do not remove the plastic coverthat protects the lower part of the inverter card.Afin d’éviter tout risque de cho

Safety notice 7DANGERThough the main batteries have low voltage, ashorted or grounded battery can produce enoughcurrent to burn personnel or combustib

Safety notice 8DANGERBefore removing any FRU, power off the computer,unplug all power cords from electrical outlets,remove the battery pack, and then

NoteBefore using this information and the product itsupports, be sure to read the general informationunder “Notices” on page 150.Second Edition (Octob

Safety informationThe following section contains the safety information thatyou need to be familiar with before servicing an IBMmobile computer.Genera

Electrical safetyObserve the following rules when working on electricalequipment.ImportantUse only approved tools and test equipment. Somehand tools h

Observe the special safety precautions when you workwith very high voltages; these instructions are in thesafety sections of maintenance information.

v Mechanical hazards, such as loose or missing hardwareTo determine whether there are any potentially unsafeconditions, use the following checklist at

v Wear a grounded wrist strap against your skin toeliminate static on your body.v Prevent the part from touching your clothing. Mostclothing is insula

When a CD-ROM drive, DVD drive or the other laserproduct is installed, note the following:CAUTION:Use of controls or adjustments or performance ofproc

Opening the CD-ROM drive, DVD-ROM drive or the otheroptical storage device could result in exposure tohazardous laser radiation. There are no servicea

DANGEREmits visible and invisible laser radiation whenopen. Do not stare into the beam, do not viewdirectly with optical instruments, and avoid direct

Laser compliance statement22 ThinkPad A20m/p, A21m/p, A22m/p

General descriptionsThis chapter includes descriptions for any ThinkPad modelthat has the PC-Doctor DOS diagnostics program. Somedescriptions might no

About this manualThis manual contains service and reference information forIBM ThinkPad A20, A21, A22 (MT2628, 2629, 2633), andThinkPad Dock (MT2631)

__ 6. Procedure index and page number in which thefailing FRU was detected__ 7. Failing FRU name and part number__ 8. Machine type, model number, and

Related service informationThis section provides information about the following:v “Service web site”v “Product recovery program”v “Passwords” on page

Creating the service partition:To create the Service Partition and install the preloadedsystem from the Recovery CD, do the following:To create the Se

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 c

Power-on password:A power-on password (POP) protects the system frombeing powered on by an unauthorized person. Thepassword must be entered before an

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 “1040Back

Power managementTo reduce power consumption, the computer has threepower management modes: screen blank, standby, andhibernation.Notesv Screen blank m

v If the battery indicator blinks orange, indicating that thebattery power is low. (Alternatively, if Hibernate whenbattery becomes low has been selec

Note for OS/2If 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

Checkout guideUse the following procedures as a guide in identifying andcorrecting problems with the ThinkPad computer.Note: The diagnostic tests are

iv ThinkPad A20m/p, A21m/p, A22m/p

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

5. Follow the instructions on the screen. If there is aproblem, PC-Doctor shows messages describing it.6. To exit the test, select Quit — Exit Diag.To

v “Checking the ac adapter”v “Checking operational charging”v “Checking the battery pack” on page 37v “Checking the backup battery” on page 37Checking

Checking the battery packBattery charging does not start until the Power Metershows that less than 95% of the total power remains;under this condition

3. Remove the battery pack (see “1010 Battery pack” onpage 60 ).4. Remove the backup battery (see “Checking the batterypack” on page 37).5. Measure th

ThinkPad A20m/p, A21m/p andA22m/pProduct overview ...41Specifications ...41Status indicators ...44FRU tests ...46F

12.1-in. panel ...9614.1-in. and 15.0-in. panels ...972030 Inverter card ...9912.1-in. panel ...9914.1-in. and 15.0-in. pan

Product overviewThis section presents the following product-uniqueinformation:v “Specifications”v “Status indicators” on page 44v “FRU tests” on page

Feature DescriptionProcessor A21pv Mobile Intel®Pentium®III processor at850 MHz featuring Intel®SpeedStep™technologyA22mv Mobile Intel®Pentium®III pro

Feature DescriptionDiskette drive 1.44 MB (3-mode), 3.5-inchHard-disk drive A20m/pv 6.0 GB, 2.5-inch, IDE interfacev 12.0 GB, 2.5-inch, IDE interfacev

ContentsAbout this manual ...iiiIntroduction ...1Important service information ...1Strategy for replacing FRUs ...1How to

Status indicatorsThe system status indicators show the status of thecomputer, as follows:Indicator Meaning1 Battery Green: The battery is fully char

Indicator Meaning4 Num lock Green: The numeric keypad on the keyboardis enabled. To enable or disable thekeypad, press and hold the Shift keywhile p

FRU testsThe following table shows the test for each FRU.FRU Applicable testSystem board 1. Diagnostics --> CPU/Coprocessor2. Diagnostics --> Sy

FRU Applicable testCD-ROM orDVD drive1. Diagnostics --> Other Devices -->CD-ROM/DVD2. Interactive Tests --> CD-ROM/DVD TestMemory 1. If two D

Fn key combinationsThe following table shows the function of each combinationof Fn with a function key.KeycombinationDescriptionFn + F1 Reserved.Fn +

Symptom-to-FRU indexThe symptom-to-FRU index in this section lists symptomsand errors and their possible causes. The most likelycause is listed first,

Symptom or error FRU or action, in sequence0190Critical low battery error.1. Charge the battery pack.2. Battery pack.0193RF antenna has been removed.E

Symptom or error FRU or action, in sequence0270Real-time clock error.1. Replace the backupbattery and run IBM BIOSSetup Utility to reset thetime and d

Error messagesSymptom or error FRU or action, in sequenceDevice address conflict. 1. Load Setup Defaults inIBM BIOS Setup Utility.2. Backup battery.3.

Beep symptomsSymptom or error FRU or action, in sequenceOne beep and a blank,unreadable, or flashing LCD.1. Reseat the LCDconnector.2. LCD assembly.3.

1040 Backup battery ...661050 Hard-disk drive or RF ID adapter ...671060 Ultrabay 2000 device ...691070 Keyboard ...711080 Keyboa

LCD-related symptomsImportantThe TFT LCD for the notebook computer containsmany thin-film transistors (TFTs). A small number ofdots that are missing,

Intermittent problemsIntermittent system hang problems can be due to a varietyof causes that have nothing to do with a hardware defect,such as cosmic

FRU replacement noticesThis section contains notices related to removing andreplacing parts. Read this section carefully before replacingany FRU.Screw

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 t

unique 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

Removing and replacing a FRUThis section presents directions and drawings for use inremoving and replacing a FRU. Be sure to observe thefollowing gene

1010 Battery packDANGERUse only the battery in the parts listing for yourcomputer. Use of an incorrect battery can result inignition or explosion of t

1020 DIMMFor access, remove this FRU:v “1010 Battery pack” on page 60Note: Loosen the screw 1, but do not remove it.(continued)Removing and replacin

When installing: With the notched end of the DIMMtoward the socket, insert the DIMM intothe socket, then press it firmly. Pivot theDIMM until it snaps

1030 Mini PCI adapterFor access, remove this FRU:v “1010 Battery pack” on page 60Note: Loosen the screw 1, but do not remove it.21(continued)Removin

IntroductionImportant service informationImportantBIOS and device driver fixes arecustomer-installable. The BIOS and device driversare posted on the I

For A20m/p, A21m/p seriesNote: The illustration shows the combo card. Connector(A) is for the LAN feature and (B) is for the modemfeature. This slot a

For A22m/p seriesNote: The illustration shows the combo card. Connector(A) is for the LAN feature and (B) is for the modemfeature. This slot also supp

1040 Backup batteryDANGERUse only the battery in the parts listing for yourcomputer. Use of an incorrect battery can result inignition or explosion of

1050 Hard-disk drive or RF ID adapterAttentionDo not drop or apply any shock to the hard-diskdrive. The hard-disk drive is sensitive to physicalshock.

When installing: Make sure that the HDD connector isfirmly connected.Removing and replacing a FRU68 ThinkPad A20m/p, A21m/p, A22m/p

1060 Ultrabay 2000 deviceAny of several devices can be inserted into the Ultrabay2000. The procedure for installing and removing is thesame for every

Removing and replacing a FRU70 ThinkPad A20m/p, A21m/p, A22m/p

1070 KeyboardFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67v “1060 Ultra

(continued)Removing and replacing a FRU72 ThinkPad A20m/p, A21m/p, A22m/p

When installing: When installing the keyboard, do asfollows:1. Install the new keyboard, following the directions in thefigure. Make sure that the key

Strategy for replacing a hard-disk driveAlways try to run a low-level format before replacing ahard-disk drive.Attention: The drive startup sequence i

1080 Keyboard CRU insulatorFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 6

1090 Hinge cover and clear sheet iconFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter”

1100 Keyboard bezel and speakerFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on pa

Step Screw (quantity) Torque2 M2.5 × 15 mm, nylon-coated (2) 0.392 Nm(4 kgfcm)Cable routing: When replacing the cable, see thepreceding figure for i

1110 Microphone and speaker cableFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on

For A22m/p series (speaker cable)When installing: Make sure that you fasten the connectorfirmly.Removing and replacing a FRUThinkPad A20m/p, A21m/p an

1120 Sub cardFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67v “1060 Ultra

Step Screw (quantity) Torque4 M2.5 × 4.8 mm, nylon-coated (1) 0.392 Nm(4 kgfcm)Removing and replacing a FRUThinkPad A20m/p, A21m/p and A22m/p 81

1130 PC Card slot assemblyFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67

1140 Fan assemblyFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67v “1060 U

Safety notices: multilingual translationsIn this manual, safety notices appear in English with apage number reference to the appropriate multi-lingual

Installation notice for A21m/p and A22m/p seriesWhen installing the fan assembly, apply the thermal grease(05K5751) on the a-part of the fan as show

1150 Diskette driveFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67v “1060

Notes:1. The heatpipe A and the screw 1a are for theMT2628-Fxx, Gxx, Pxx, Qxx, Rxx, Sxx, Txx, Xxx,MT2633-Gxx, Txx, and MT2629. Other models do notha

1160 Upper shieldFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1050 Hard-disk drive or RF ID adapter” on page 67v “1060 U

1170 TV cardNoteThis section is only for MT2628-Fxx,-Gxx, -Sxx,-Txx,MT2633-Gxx,-Txx, and MT2629. Other models donot have the TV card.For access, remov

1180 CPU socket and CPUFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1020 DIMM” on page 61v “1050 Hard-disk drive or RF I

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

1190 System board and RJ45/11connector assemblyFor access, remove these FRUs, in order:v “1010 Battery pack” on page 60v “1020 DIMM” on page 61v “1030

Note: Step 4 (thermal rubbers) are only forMT2628-Pxx, -Qxx, -Rxx, -Sxx, -Txx, -Xxx, andMT2629-Hxx, -Uxx. When replacing the systemboard for those m

Thermal rubbers locationBefore installing the new system board, make sure that thethermal rubbers are placed on the system board as shownin the follow