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Toshiba A3X manual Appendices Appendix. H Reliability

Models: A3X

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Appendices

Appendix. H Reliability

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[CONFIDENTIAL]

Satellite A50S/TECRA A3X Maintenance Manual (960-534)

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Toshiba A3X manual Appendices Appendix. H Reliability

Contents

Toshiba Corporation File NumberCopyright Safety Precautions PrefaceConfidential Conventions AcronymsTable of Contents Chapter Tests and Diagnostics Only ONE TestChapter AppendicesConfidential Confidential Hardware Overview Hardware Overview Chapter Contents Figures TablesTime required for charges of RTC battery Hardware Overview Features Features Hardware OverviewHardware Overview Features ‰ Vram‰ LAN/MODEM Shows the front of the computer Shows the system units configuration System Block Diagram Hardware Overview System Block DiagramSystem Block Diagram Hardware Overview ‰ CPUGpio System Block Diagram Hardware Overview 3.5-inch USB Floppy Disk Drive Hardware Overview 3.5-inch USB Floppy Disk Drive2.5-inch HDD dimensions 2/2 2.5-inch Hard Disk Drive2.5-inch Hard Disk Drive Hardware Overview Standard2.5-inch HDD specifications 2/2 96.6 113.2CD-ROM Drive CD-ROM Drive Hardware OverviewG8CC0002R220 Hardware Overview CD-ROM Drive CD-ROM drive specifications Specifications ItemsDVD-ROM Drive DVD-ROM Drive Hardware OverviewG8CC0002W220 G8CC0002E220 Specifications G8CC0002W220DVD+R, DVD+RW, DVD-RAM 2.6GB/4.7GB DVD-ROM & CD-R/RW Drive Hardware Overview DVD-ROM & CD-R/RW DriveItems Standard PanasonicItems Panasonic G8CC0002J220 CD-ROM, CD-R, CD-RW, CD-Audio Disc DVD Super Multi drive DVD Super Multi drive Hardware OverviewItems Standards G8CC0002T220 G8CC0002S220Specifications Panasonic G8CC0002T220 2MB CD-DA, CD-ROM, CD-ROM XACD-DA, CD-ROM, CD-ROM XA, CD-I, Video CD Keyboard Hardware Overview KeyboardTFT Color Display TFT Color Display Hardware OverviewLCD Module 12 LCD module specifications 15.0-inch SXGA+ TFT 2/2 13 FL inverter board specifications FL Inverter BoardPower Supply Hardware Overview Power SupplyPower Supply Hardware Overview Power supply output rating 1R8-B1V1R5-E1V Battery specifications Main BatteryBatteries Hardware Overview BatteriesBattery Charging Control 16 Time required for charges of main battery17 Battery preservation time Batteries Hardware OverviewRTC Battery 18 Time required for charges of RTC batteryCondition Time 19 AC adapter specifications 1/2 19 AC adapter specifications 2/2AC Adapter AC Adapter Hardware OverviewHardware Overview AC Adapter Chapter Troubleshooting Procedures Troubleshooting Procedures Power Status Check Troubleshooting Procedures Troubleshooting flowchart Set of tool for debug port test Troubleshooting Procedures Troubleshooting Troubleshooting Troubleshooting ProceduresTroubleshooting Flowchart Troubleshooting Procedures Troubleshooting FlowchartTroubleshooting Flowchart Troubleshooting Procedures Troubleshooting flowchart 1/2Troubleshooting flowchart 2/2 Troubleshooting Flowchart Troubleshooting Procedures Power Supply Troubleshooting Troubleshooting Procedures Power Supply TroubleshootingProcedure 1 Power Status Check Battery iconPower Supply Troubleshooting Troubleshooting Procedures Procedure 2 Error Code Check Error code Where Error occurs‰ DC power supply AC adapter Error code Meaning‰ E5V output P61 ‰ PPV output P65 ‰ PTV output P75 Procedure 3 Connection Check Procedure 4 Charging CheckProcedure 5 Replacement Check System Board Troubleshooting System Board Troubleshooting Troubleshooting ProceduresTroubleshooting Procedures System Board Troubleshooting Procedure 1 Message CheckKBC Error HDC Error Procedure 2 Debug Port Check A set of tool for debug port testPort Inspection items Details Status Memori Clear CHGFIRMA.EXE Irtbiossignchk Irtinismbaseend Irtinipciend Port Inspection items Details Port status Inspection items Details Ffffh Procedure 3 Diagnostic Test Program Execution Check Procedure 4 Replacement Check3.5 FDD Troubleshooting 3.5 FDD Troubleshooting Troubleshooting ProceduresProcedure 1 FDD Head Cleaning Check Troubleshooting Procedures 3.5 FDD Troubleshooting Procedure 2 Diagnostic Test Program Execution CheckFDD error code and status Code StatusProcedure 3 Connector Check and Replacement Check Flkcs PCB2.5 HDD Troubleshooting Troubleshooting Procedures 2.5 HDD TroubleshootingProcedure 1 Partition Check 2.5 HDD Troubleshooting Troubleshooting Procedures Procedure 2 Message CheckProcedure 3 Format Check Procedure 4 Diagnostic Test Program Execution Check 2.5 Hard disk drive error code and statusProcedure 5 Connector Check and Replacement Check Keyboard Troubleshooting Keyboard Troubleshooting Troubleshooting ProceduresProcedure 1 Diagnostic Test Program Execution Check Procedure 2 Connector Check and Replacement CheckDisplay Troubleshooting Troubleshooting Procedures Display TroubleshootingProcedure 1 External Monitor Check Display Troubleshooting Troubleshooting Procedures Procedure 3 Connector and Cable CheckLCD module FL inverter System board CN5000Procedure 4 Replacement Check Touch Pad Troubleshooting Touch Pad Troubleshooting Troubleshooting ProceduresProcedure 2 Connector Check & Replacement Check Optical Drive Troubleshooting Troubleshooting Procedures Optical Drive TroubleshootingModem Troubleshooting Modem Troubleshooting Troubleshooting ProceduresLAN Troubleshooting Troubleshooting Procedures LAN TroubleshootingSound Troubleshooting Sound Troubleshooting Troubleshooting ProceduresProcedure 2 Connector Check Troubleshooting Procedures Sound Troubleshooting Procedure 3 Replacement CheckWireless LAN Troubleshooting Wireless LAN Troubleshooting Troubleshooting ProceduresProcedure 1 Transmitting-Receiving Check Procedure 2 Antennas Connection CheckTroubleshooting Procedures Wireless LAN Troubleshooting Chapter Tests and Diagnostics Tests and Diagnostics Heatrun Test 20.120.2 21.131.1 Function Description Accessing the Setup Program Tables Tests and Diagnostics Diagnostic Test Tests and Diagnostics Diagnostic TestDiagnostics menu Diagnostic Test Tests and Diagnostics 2 H/W Hardware initial information setting tool Heatrun test programExecuting the Diagnostic Test Executing the Diagnostic Test Tests and DiagnosticsDiagnostics menu T&D Tests and Diagnostics Executing the Diagnostic Test System Test Name 2 H/W initial information setting tool Setting of the hardware configuration Setting of the hardware configuration Tests and DiagnosticsTests and Diagnostics Setting of the hardware configuration Setting of the hardware configuration Tests and Diagnostics Tests and Diagnostics Heatrun Test Heatrun TestSubtest Names Tests and Diagnostics Subtest NamesTest Name Subtest No Subtest Name Tests and Diagnostics Subtest Names Subtest names 2/2 AsyncSystem Test Tests and Diagnostics System TestTests and Diagnostics System Test Memory Test Tests and Diagnostics Memory TestTests and Diagnostics Keyboard Test Keyboard TestDisplay Test Tests and Diagnostics Display TestTests and Diagnostics Display Test Display Test Tests and Diagnostics Tests and Diagnostics Floppy Disk Test Floppy Disk TestFloppy Disk Test Tests and Diagnostics Tests and Diagnostics Printer Test Printer TestConfidential Tests and Diagnostics Async Test Async TestHard Disk Test Tests and Diagnostics Hard Disk TestTests and Diagnostics Hard Disk Test HDD Real Timer Test Tests and Diagnostics Real Timer TestReal Timer Test Tests and Diagnostics Tests and Diagnostics NDP Test NDP TestExpansion Test Tests and Diagnostics Sub# Address Good Bad ContentsExpansion Test Tests and Diagnostics Expansion Test CD-ROM/DVD-ROM Test Tests and Diagnostics CD-ROM/DVD-ROM TestError Code and Error Status Names Tests and Diagnostics Error Code and Error Status NamesDevice name Error code Error status name PRT Time OUT No Pcmcia Hard Disk Test Detail Status Tests and Diagnostics Hard disk controller status register contentsHard Disk Test Detail Status BBK Program Description OperationsIf Test OK, Press DellEnterkey Only ONE Test Button, return to the only ONE Test menu automatically Subtest 05 USB Press Enter and following message appears in the display Head Cleaning Head Cleaning Tests and DiagnosticsFunction Description EnterTests and Diagnostics Log Utilities Log UtilitiesLog Utilities Tests and Diagnostics 00 00 0000 FDD-WRITE ProtectedTests and Diagnostics Running Test Running TestFloppy Disk Drive Utilities Tests and Diagnostics Floppy Disk Drive UtilitiesTests and Diagnostics Floppy Disk Drive Utilities Floppy Disk Format & Copy DIAGNOSTICS-HARD Disk & Floppy Disk Dump Following message will appear. To finish the dump, select System Configuration Tests and Diagnostics System ConfigurationSystem Configuration Tests and Diagnostics System Configuration Display Ver X.XX Machine Name???Wireless LAN Test Program Intel-made b/g MAC = Setting the responder machine 11g Communication Test NG Wireless LAN Test Program Intel-made a/b/g SKU NG Aux Antenna Test NG 11a Communication Test NG Confidential Wireless LAN Test Program Askey-made Wireless LAN Test Program Askey-made Tests and DiagnosticsSetting the tester DUT machine Tests and Diagnostics Wireless LAN Test Program Askey-made MAC Address Check OK Tests and Diagnostics Wireless LAN Test Program Askey-made 29 LAN/Modem/Bluetooth/IEEE1394 Test Program LAN testLAN transmit & receive test Completed Repeat count 00000 Confidential Modem test Modem loopback testBluetooth test Sssss Error message Message ContentsError code for Bluetooth test Bdaddr 1/2 See the Specification of the Bluetooth System in detail Eeeeeee MM P M M M P Error code for Bluetooth test Bdaddr of the DUT 1/2 Confidential IEEE1394 test Sound Test program Tests and Diagnostics Sound Test programSound Standard test Tests and Diagnostics Sound Test program Sound Legacy test CD Sound Standard test Pass Count Write Data Read Data Address Xxxxxx Status XXXReturn to the CD Sound Standard menu after the test ends CD Sound Legacy test Setup Setup Tests and DiagnosticsTests and Diagnostics Setup Accessing the Setup Program Confidential Moving Within the Setup Menu and Changing Values Accepting Changes and Exiting the Setup WindowFactory Preset Configuration HDD Mode Password Write PolicySetup Options System Date Sets date System Time Sets timeSetup Tests and Diagnostics Using the AC adapter LowFn+F1 Setup Tests and Diagnostics LCD Display Stretch Ntsc US Enable the Execute-Disable Bit function Disable the Execute-Disable Bit functionAuto Power On All Devices LPT setting Interrupt level Address LPT setting Interrupt level Address DMA channelCOM level CD-ROM ECP Legacy Emulation Chapter Replacement Procedures Replacement Procedures Overview Parallel port board/Serial port board/S-Video board105 Removing Battery Pack 53 to 4-100 Replacing Fluorescent Lamp Overview Replacement Procedures OverviewReplacement Procedures Overview Safety PrecautionsBefore You Begin Disassembly Procedures Assembly Procedure Tools and EquipmentScrew Tightening Torque Grip ColorScrew Notation Battery Pack/PC Card Replacement Procedures Battery Pack/PC CardBattery Pack Removing the battery pack Battery Pack/PC Card Replacement Procedures Installing the battery packInstalling the PC card PC Card Removing the PC cardMemory Module Replacement Procedures Memory ModuleRemoving the memory module Replacement Procedures Memory Module Removing Memory ModuleInstalling the memory module Replacement Procedures MDC MDCRemoving the MDC MDC Replacement Procedures Installing the MDCReplacement Procedures HDD HDDRemoving the HDD HDD Replacement Procedures Removing HDD AssyInstalling the HDD Wireless LAN card Wireless LAN card Replacement ProceduresNever press hard or bend the wireless LAN card Removing the Wireless LAN cardReplacement Procedures Wireless LAN card Installing the Wireless LAN cardCooling Fin/CPU Replacement Procedures Cooling Fin/CPURemoving the Cooling fin/CPU 12 Removing CPU Holder 13 Removing Cooling Fin Replacement Procedures Cooling Fin/CPU Installing the Cooling fin/CPU16 Applying Silicon Grease Replacement Procedures Keyboard Removing the KeyboardKeyboard Replacement Procedures 18 Removing Keyboard19 Removing Keyboard support plate Installing the Keyboard Switch membrane board Replacement Procedures Switch membrane boardRemoving the Switch membrane board Switch membrane board Replacement Procedures Installing the Switch membrane boardReplacement Procedures Optical Drive Optical DriveRemoving the Optical drive Installing the Optical drive 22 Removing the bracketDisplay Assembly Replacement Procedures Display AssemblyRemoving the Display assembly Display Assembly Replacement Procedures 24 Removing screws and cables under keyboard25 Removing Display Assembly Installing the Display assembly Replacement Procedures Sound Board Installing the Sound BoardSound Board Removing the Sound BoardParallel port board / Serial port board / S-Video board Parallel port board Removing the Parallel port board28 Removing parallel port board Installing the Parallel port board Serial port board Removing the serial port board 29 Removing serial port boardInstalling the Serial port board Video board Removing the S-Video board 30 Removing S-Video boardInstalling the S-Video board Replacement Procedures 14 Fan Installing the Fan14 Fan Removing the FanSystem Board/DC-IN Jack/RTC Battery System Board/DC-IN Jack/RTC Battery Replacement ProceduresRemoving the system board/DC-IN jack/RTC battery Replacement Procedures System Board/DC-IN Jack/RTC Battery 33 Removing System boardInstalling the System board/DC-IN jack/RTC battery Replacement Procedures PC card cover Installing the PC card coverPC card cover Removing the PC card coverBattery Latch Battery Latch Replacement ProceduresRemoving the Battery latch Replacement Procedures Battery Latch Installing the Battery latchBattery Lock Battery Lock Replacement ProceduresRemoving the Battery lock Replacement Procedures Battery Lock Installing the Battery lockTouch Pad Replacement Procedures Touch PadRemoving the Touch pad Replacement Procedures Touch Pad Installing the Touch padLCD Unit/FL Inverter Replacement Procedures LCD Unit/FL InverterRemoving the LCD unit/FL inverter Replacement Procedures LCD Unit/FL Inverter 41 Removing FL Inverter and LCD Unit42 Removing LCD Bracket Installing the FL inverter/LCD unit Latch Assembly Latch Assembly Replacement ProceduresRemoving the Latch assembly Installing the Latch AssemblyWireless LAN Antenna/Speaker/Hinge Replacement Procedures Wireless LAN Antenna/Speaker/HingeRemoving the Wireless LAN antenna/Speaker/Hinge Wireless LAN Antenna/Speaker/Hinge Replacement Procedures 44 Removing wireless LAN antennas45 Removing LCD harness Holder Remove the wireless LAN antenna cables 48 Removing Optical drive cover 49 Removing speaker cables 50 Removing Speakers Installing the Wireless LAN antenna/Speaker/Hinge 52 Attaching spongesReplacement Procedures Wireless LAN Antenna/Speaker/Hinge Fluorescent Lamp Replacement Procedures Fluorescent LampType Supplier Section Replacement Procedures Fluorescent Lamp 53 Replacing 15.0 Inch Samsung fluorescent lamp XGA54 Replacing 15.0 Inch Samsung fluorescent lamp XGA 56 Replacing 15.0 Inch Samsung fluorescent lamp XGA Fluorescent Lamp4 Replacement Procedures 57 Replacing 15.0 Inch Samsung fluorescent lamp XGA58 Replacing 15.0 Inch Samsung fluorescent lamp XGA 59 Replacing 15.0 Inch Samsung fluorescent lamp XGA 60 Replacing 15.0 Inch Samsung fluorescent lamp XGA 61 Replacing 15.0 Inch Samsung fluorescent lamp XGA Assembling the 15.0-inch XGA Samsumg Fluorescent Lamp 62 Replacing 15.0 Inch Sharp fluorescent lamp XGA 64 Replacing 15.0 Inch Sharp fluorescent lamp XGA 65 Replacing 15.0 Inch Sharp fluorescent lamp XGA 67 Replacing 15.0 Inch Sharp fluorescent lamp XGA 68 Replacing 15.0 Inch Sharp fluorescent lamp XGA 69 Replacing 15.0 Inch Sharp fluorescent lamp XGA 70 Replacing 15.0 Inch Sharp fluorescent lamp XGA Replacement Procedures4.23 Fluorescent Lamp 71 Replacing 15.0 Inch Sharp fluorescent lamp XGAAssembling the 15.0 Inch XGA Sharp Fluorescent Lamp 72 Replacing 15.0 Inch Sharp fluorescent lamp XGA73 Replacing 15.0 Inch Sharp fluorescent lamp XGA 76 Replacing 15.0 Inch Sharp fluorescent lamp XGA Upper diffusion sheet Lens sheet Light guide 78 Replacing 15.0 Inch Sharp fluorescent lamp XGA 79 Replacing 15.0 Inch Sharp fluorescent lamp XGA 81 Replacing 15.0 Inch Sharp fluorescent lamp XGA 83 Replacing 15.0 Inch Sharp fluorescent lamp XGA 84 Replacing 15.0 Inch Sharp fluorescent lamp XGA 85 Replacing 15.0 Inch LG.Philips fluorescent lamp XGA 86 Replacing 15.0 Inch LG.Philips fluorescent lamp XGA 87 Replacing 15.0 Inch LG.Philips fluorescent lamp XGA 88 Replacing 15.0 Inch LG.Philips fluorescent lamp XGA Assembling the 15.0-inch XGA LG.Philips Fluorescent lamp 89 Replacing 15.0 Inch LG.Philips fluorescent lamp XGA91 Replacing 15.0 Inch LG.Philips fluorescent lamp XGA 92 Replacing 15.0 Inch LG.Philips fluorescent lamp XGA 93 Replacing 15.0 Inch LG.Philips fluorescent lamp SXGA+ 94 Replacing 15.0 Inch LG.Philips fluorescent lamp SXGA+ 95 Replacing 15.0 Inch LG.Philips fluorescent lamp SXGA+ 96 Replacing 15.0 Inch LG.Philips fluorescent lamp SXGA+ Assembling the 15.0 Inch SXGA+ LG.Philips Fluorescent lamp 97 Replacing 15.0 Inch LG.Philips fluorescent lamp SXGA+ 98 Replacing 15.0 Inch LG.Philips fluorescent lamp SXGA+ 99 Replacing 15.0 Inch LG.Philips fluorescent lamp SXGA+ 100 Replacing 15.0 Inch LG.Philips fluorescent lamp SXGA+ 114 Appendices Appendices Appendix Contents App-iv Appendices Figure B-1 System board layout front Table C-9 Table C-10Table C-11 Table C-12Table D-7 Precautions for handling the LCD module Appendix. a Handling the LCD Module AppendicesAppendices Appendix. a Handling the LCD Module Satellite A50S/TECRA A3X Maintenance Manual Appendices Appendix. a Handling the LCD Module Appendix. a Handling the LCD Module Appendices Appendices Appendix. a Handling the LCD Module System Board Front View Appendix. B Board Layout AppendicesMark Number Name System Board Back View Figure B-2 System board layout backCPU Sound Board Flgsn Front BackParallel port Board Flgcp Appendices Appendix. B Board LayoutSerial port Board Flgsr Video Board Flkcs System Board Flksy CN1400 Memory 0 Connector 200-pin Table C-1 Memory 0 connector pin assignment 200-pin 1/4Pin No Signal name Signal Name Appendix. C Pin Assignment AppendicesGND ADM3-B1P ADQS3-B1N ADQS3-B1P ADQS4-B1N ADQS7-B1P CN1410 Memory 1 Connector 200-pin Table C-2 Memory 1 connector pin assignment 200-pin 1/4Pin No Signal name GND BDM3-B1P BDQS3-B1N BDQS3-B1P BDQS4-B1N CN1800 HDD I/F Connector 44-pin Table C-3 HDD I/F connector pin assignment 44-pinCN1810 Optical Drive I/F Connector 50-pin Table C-4 Optical drive I/F connector pin assignment 50-pinIS2110 PC Card I/F Connector 70-pin Table C-5 PC card I/F connector pin assignment 70-pin 1/2Appendices Appendix. C Pin Assignment ACSTSC-PYP ACAD30-PYP ACCD2-P3N GND CN2300 Docking I/F connector 240-pin Table C-6 Docking I/F connector 240-pin1/4DVIPD0-P3N DCADIO-S3P GND PME-S3P DSSCL-S5P DSSDA-S5P CN2200 Mini PCI I/F Connector 124-pin Table C-7 Mini PCI I/F connector pin assignment 124-pin 1/2P3V CLKRUN-P3N SERR-P3N GND PERR-P3N CBE1-P3N CN3010 MDC I/F Connector 12-pin CN3490 Debug Port Connector 12-pinTable C-8 MDC I/F connector pin assignment 12-pin Table C-9 Debug port connector pin assignment 12-pin10 CN3200 Keyboard I/F Connector 34-pin 11 CN3240 Touch Pad I/F Connector 4-pinTable C-10 Keyboard I/F connector pin assignment 34-pin Table C-11 Touch pad I/F connector pin assignment 4-pin12 CN3280 Switch Board I/F Connector 10-pin 13 CN3502 FLGCP/FLGSR Board I/F Connector 30-pinTable C-12 Switch board I/F connector pin assignment 10-pin 14 CN4100 Network I/F Connector 14-pin 15 CN4611 USB harness I/F Connector 8-pin16 CN4610 USB I/F Connector 0 4-pin 17 CN5000 LCD I/F Connector 41-pin Table C-17 LCD I/F connector pin assignment 41-pin18 CN5620 RGB I/F Connector 15-pin 19 CN5340 S-Video I/F Connector 5-pin20 CN6001 Speaker Connector Left 3-pin 21 CN6002 Speaker Connector Right 2-pin 22 CN9500 Sound Board I/F Connector 18-pin23 CN8800 DC-IN Connector 4-pin 24 CN8020 1st Battery Connector 10-pin 25 CN9990 RTC Battery Connector 3-pin26 CN8770 FAN I/F Connector 4-pin 28 J6310 Headphone Connector 6-pin 29 CN9510 System Board I/F Connector 18-pinTable C-28 Headphone Connector pin assignment 6-pin Table C-29 System board I/F Connector pin assignment 18-pinTable C-30 System board I/F Connector pin assignment 10-pin Table C-31 System board I/F Connector pin assignment 30-pin 32 CN4613 Parallel I/F Connector 25-pin 33 CN4620 USB harness I/F Connector 8-pin34 CN4622 USB I/F Connector 1 4-pin Video Board Flgcs 35 PJ4610 USB harness I/F Connector 8-pin 36 PJ4612 USB I/F Connector 1 4-pin37 PJ4611 USB I/F Connector 2 4-pin 38 PJ5640 System Board I/F Connector 5-pin39 PJ5641 S-Video Connector 4-pin Table C-39 S-Video Connector pin assignment 4-pinTable C-40 System board I/F Connector pin assignment 30-pin 41 CN3440 Serial I/F Connector 9-pin 42 CN4630 USB harness I/F Connector 8-pin43 CN4632 USB I/F Connector 1 4-pin Appendices Appendix. C Pin Assignment Appendix. D Keyboard Scan/Character Codes Appendices Table D-1 Scan codes set 1 and set 2 1/4Cap Keytop Code set Make Break Caps Lock Enter Shift L No.102 ALT R 122 F11 123 F12 124 PrintSc 126 Pause 202 203 Win 204 App With left Shift With right Shift Set AA E0 2A E0 F0 12 E0 Table D-4 Scan codes with Fn key Cap Code set Keytop Make BreakTable D-6 No.124 key scan code Key Shift Code set Top Make Keyboard Layout Appendix. E Key LayoutAppendicesAppendices Appendix. E Key Layout RGB Monitor ID Wraparound Connector 15-pin to 15-pin Parallel Port Wraparound ConnectorAppendix. F Wiring Diagrams Appendices Appendices Appendix. F Wiring Diagrams Appendix G BIOS/KBC/EC Update Appendix. G BIOS/KBC/EC Update AppendicesAppendices Appendix. G BIOS/KBC/EC Update Appendix. H Reliability Appendices Table H-1 MtbfComponent Time hours Appendices Appendix. H Reliability