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Lenovo 28155YU, 28155XU manual and then detach, the connector, Removal steps of keyboard continued

Models: 2808DKU 28155XU 28155YU

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, and then detach

Table 16. Removal steps of keyboard (continued)
Lift the keyboard a little in the direction shown by arrow		, and then detach
the connector	.

6

7

Removing and replacing a FRU 97

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Lenovo 28155YU, 28155XU and then detach, the connector, Removal steps of keyboard continued, Removing and replacing a FRU

Contents

ThinkPad T400s Hardware Maintenance Manual Page ThinkPad T400s Hardware Maintenance Manual First Edition June Copyright Lenovo Contents Parts list ThinkPad T400s About this manualviThinkPad T400s Hardware Maintenance Manual Safety information General safety Electrical safety –Power supply units –Pumps –Blowers and fans Safety inspection guide Notes Grounding requirementsSafety information Safety notices multilingual translationsvEnglish vArabic vBrazilian Portuguese vFrench vGerman vHebrew vJapanese vKorean vSpanishDANGER DANGERDANGER DANGERDANGER DANGERDANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card10ThinkPad T400s Hardware Maintenance Manual Safety information PERIGO PERIGOPERIGO PERIGOPERIGO PERIGOPERIGO Para evitar choque elétrico, não remova a capa plástica que protege a parte inferior da placa inversoraDANGER DANGERDANGER DANGERDANGER DANGERDANGER Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d’alimentationVORSICHT VORSICHTVORSICHT VORSICHTVORSICHT VORSICHTVORSICHT VORSICHT18ThinkPad T400s Hardware Maintenance Manual Safety information 20ThinkPad T400s Hardware Maintenance Manual Safety information 22ThinkPad T400s Hardware Maintenance Manual Safety information PELIGRO PELIGROPELIGRO PELIGROPELIGRO PELIGROPELIGRO Para evitar descargas, no quite la cubierta de plástico que rodea la parte baja de la tarjeta invertida26ThinkPad T400s Hardware Maintenance Manual Safety information DANGER Safety information CUIDADO Não abraPERIGO DANGER VORSICHT öffnenGEFAHR Safety information 34ThinkPad T400s Hardware Maintenance Manual Safety information 36ThinkPad T400s Hardware Maintenance Manual PRECAUCIÓNPELIGRO Safety information 38ThinkPad T400s Hardware Maintenance Manual Strategy for replacing FRUs Important service informationBefore replacing parts 3.Select Downloads and driversHow to use error message Strategy for replacing a hard disk driveImportant notice for replacing a system board Using PEW Dynamic Configure To Order CTOStrategy for replacing FRUs for CTO, CMV, and GAV Product definitionUsing eSupport Using the HMM42ThinkPad T400s Hardware Maintenance Manual General checkout Important notesvBe careful not to replace a nondefective FRU The following are not covered under warranty What to do firstCheckout guide Diagnostics using PC-Doctorfor DOSTesting the computer Diagnostics Detecting system information with PC-DoctorInteractive Tests Hardware InfoPC-Doctorfor Rescue and Recovery Lenovo System ToolboxFRU tests Applicable test Table 1. FRU tests continuedTouch Pad Table 1. FRU tests continuedChecking the AC adapter Power system checkoutChecking operational charging Checking the battery packChecking the backup battery 54ThinkPad T400s Hardware Maintenance Manual Service Web site Related service informationPower-onpassword PasswordsHard-diskpassword Supervisor passwordHow to remove the hard-diskpassword How to remove the power-onpassword5.Select Power-OnPassword A If no SVP has been set6.Select Master HDP Power management Screen blank modeStandby mode Hibernation mode Numeric error codes Symptom-to-FRUindexSymptom or error Table 2. Numeric error codes continuedSymptom or error Table 2. Numeric error codes continuedSymptom or error Table 2. Numeric error codes continuedTable 3. Error messages Error messagesNo-beepsymptoms Beep symptomsTable 4. Beep symptoms Table 5. No-beepsymptomsNotes LCD-relatedsymptomsUndetermined problems Intermittent problemsTable 7. Specifications SpecificationsFeature DescriptionTable 7. Specifications continued Bluetooth wirelessI/O port Copyright Lenovo Status indicatorsTable 8. Status indicators IndicatorBluetooth Indicator Table 8. Status indicators continuedMeaning Blinking green slow74ThinkPad T400s Hardware Maintenance Manual Table 9. Fn key combinations Fn key combinationsKey combination DescriptionFn+F7 Table 9. Fn key combinations continuedScrew notices FRU replacement noticesvPlastic to plastic vLogic card to plasticRestoring the serial number of the system unit Retaining serial numbersRetaining the UUID 3.Select 2. Read S/N data from EEPROMReading or writing the ECA information 80ThinkPad T400s Hardware Maintenance Manual DANGER Removing and replacing a FRURemoving the SIM card Before servicing ThinkPad T400sDANGER 1010 Battery packFor access, remove this FRU Step 1030 Solid state drive SSD or hard disk drive HDDScrew quantity ColorTable 12. Removal steps of SSD or HDD continued 86ThinkPad T400s Hardware Maintenance ManualFor access, remove these FRUs in order 1040 DIMMv“1010 Battery pack” on page Note: Loosen the screwsTable 13. Removal steps of DIMM continued Removing and replacing a FRU 1050 PCI Express Mini Card for wireless LANScrew quantity StepColor TorqueWhen installing 92ThinkPad T400s Hardware Maintenance Manual 1060 PCI Express Mini Card for wireless WANScrew quantity StepColor Torque94ThinkPad T400s Hardware Maintenance Manual 1070 Keyboard Table 16. Removal steps of keyboardRemoving and replacing a FRU Step 96ThinkPad T400s Hardware Maintenance ManualScrew quantity Colorand then detach the connectorTable 16. Removal steps of keyboard continued Removing and replacing a FRU1. Attach the keyboard connector When installing the keyboard, do as followsTable 17. Installation steps of keyboard 98ThinkPad T400s Hardware Maintenance Manual2. Attach the keyboard so that the keyboard edges DANGER 1080 Backup batteryNote: Step 1090 Wireless USB adapter or Intel Turbo MemoryStep Screw quantity102ThinkPad T400s Hardware Maintenance Manual Step For access, remove these FRUs in orderScrew quantity Color5 5 104ThinkPad T400s Hardware Maintenance ManualStep 1110 Bluetooth daughter card BDC-2Screw quantity ColorStep 1120 Keyboard bezel and speaker assemblyScrew quantity ColorScrew quantity StepColor Torque108ThinkPad T400s Hardware Maintenance Manual Note: Before stepkeyboard bezel as shown in the figure Screw quantity StepColor TorqueStep 1130 5-in-1Media Card Reader adapterScrew quantity ColorStep 1140 Bluetooth–wirelessradio switch FPCScrew quantity Color112ThinkPad T400s Hardware Maintenance Manual Step 1150 LCD unitScrew quantity ColorWhen installing 114ThinkPad T400s Hardware Maintenance ManualTable 25. Removal steps of LCD unit continued Removing and replacing a FRU Table 25. Removal steps of LCD unit continuedTable 25. Removal steps of LCD unit continued 116ThinkPad T400s Hardware Maintenance ManualImportant notices for handling the system board ICH I/O Controller Hub CPU Screw quantity StepColor TorqueStep Note The steps fromScrew quantity ColorStep When installingScrew quantity Color122ThinkPad T400s Hardware Maintenance Manual Step 1170 I/O sub card and base cover assemblyScrew quantity ColorNote: Applying labels to the base cover Table 28. Removal steps of LCD bezel assembly 2010 LCD bezel assemblyStep Screw cap3 2 22 126ThinkPad T400s Hardware Maintenance ManualFor access, remove the following FRU 2020 LCD latch L and Rv“1010 Battery pack” on page v“2010 LCD bezel assembly” on pageStep 2030 Integrated camera or microphone sub cardScrew quantity ColorRemoving and replacing a FRU 130ThinkPad T400s Hardware Maintenance Manual 2040 LED sub cardStep Screw quantityImportant notice on handling the LCD panel 2050 LCD panelvDO NOT work by lifting the LCD panel When installingRemoving and replacing a FRU Table 32. Removal steps of LCD panel continued2060 LCD cable Step 2070 Hinge kitScrew quantity ColorTable 34. Removal steps of hinge kit continued 136ThinkPad T400s Hardware Maintenance Manual2080 LED cable Table 35. Removal steps of LED cable continued 138ThinkPad T400s Hardware Maintenance ManualStep 2090 Antenna kit and LCD rear cover assemblyScrew quantity Color140ThinkPad T400s Hardware Maintenance Manual Front view LocationsRear view Bottom view 144ThinkPad T400s Hardware Maintenance Manual Self-serviceCRUs Parts listOptional-serviceCRUs Notes146ThinkPad T400s Hardware Maintenance Manual Overall22 21 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9Table 37. Parts list—Overall FRU OverallFRU no Ericsson F3507g USA - Wireless WAN card Table 37. Parts list—OverallcontinuedDVD-RAM/RWdrive Table 37. Parts list—OverallcontinuedMicroSATA solid state drive, 64 GB Table 37. Parts list—Overallcontinued45N7955 Table 37. Parts list-Overallcontinued42T1327 Table 37. Parts list—Overallcontinued43Y9976 Table 37. Parts list—Overallcontinued2-GB DDR3-1066SDRAM SO-DIMM PC3-8500card Table 37. Parts list-OverallcontinuedPalm rest assembly with fingerprint reader Table 37. Parts list—Overallcontinued156ThinkPad T400s Hardware Maintenance Manual LCD FRUs11 1 2 10 3 4 5Table 38. Parts list—14.1-inchWXGA+ TFT FRU 14.1-inchWXGA+ TFTFRU no Table 39. Parts list-Keyboard KeyboardLanguage FRU noTable 40. Parts list—Miscellaneousparts Miscellaneous partsTable 40. Parts list—Miscellaneousparts continuedKeyboard bezel miscellaneous parts AC adapters Table 41. Parts list-2-pinAC adaptersTable 42. Parts list—3-pinAC adapters Table 44. Parts list—2-pinpower cords Power cordsTable 45. Parts list—3-pinpower cords Country or regionWindows XP Professional recovery DVDs Recovery discsv2801-CTO v2808-CTO v2809-CTO v2815-CTO v2823-CTO 164ThinkPad T400s Hardware Maintenance Manualv2824-CTO v2825-CTO LanguageWindows Vista Home Basic 32 bit recovery DVDs v2801-CTO v2808-CTO v2809-CTO,73x v2815-CTO,32xv2823-CTO v2824-CTO v2825-CTO Windows Vista Home Premium 32 bit recovery DVDs v2801-CTO,A9x, AHx, AJx, AKx v2808-CTO v2809-CTOv2815-CTO v2823-CTO v2824-CTO v2825-CTO Windows Vista Business 32 bit recovery DVDs Brazilian Portuguese v2801-CTO v2808-CTO,CGx, CMx v2809-CTO Windows Vista Business 64 bit recovery DVDsv2815-CTO,3Px, 3Rx v2823-CTO,9Gx v2824-CTO v2825-CTOv2801-CTO v2808-CTO v2809-CTO Windows Vista Ultimate 32 bit recovery DVDsv2815-CTO,2Qx, 2Tx, 3Nx, 3Qx v2823-CTO,9Fx v2824-CTO v2825-CTOCommon service tools Table 53. Parts list—Commonservice toolsTool 172ThinkPad T400s Hardware Maintenance Manual Lenovo United States, Inc Notices1009 Think Place - Building One Morrisville, NC U.S.A Attention: Lenovo Director of LicensingTrademarks Page 1P P/N: 45M2271 Part Number 45M2271