Dell LM P-133ST manual Diskette-Drive Access Indicator

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Diskette-Drive Access Indicator

This indicator blinks when data is being transferred to or from the internal diskette drive.

PC Card Indicator

This indicator blinks when the computer is accessing data from an installed PC Card or Cards.

AC Power Indicator

This indicator appears when the computer is receiving power through an AC power adapter.

•If the icon is present but not blinking, the computer is on but the battery is not charging.

•If the icon is blinking, the computer is on and the battery is charging.

Battery Activity Indicator

This indicator appears when there are batteries in the computer. If the main battery is present, the upper triangle appears. If the secondary battery is present, the lower triangle appears. If either triangle is blink- ing, the battery is in use or charging.

Battery Status Indicator

The battery status indicator reflects the state of the main or secondary battery in the computer when the computer is off.

No indicator means there is no battery (main or secondary) in the computer or, if present, the battery has been discharged.

1-4 Dell Latitude LM Systems Service Manual

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Contents 659,&0$18$ Page Contents Chapter Beep Codes and Error Messages Chapter Removing and Replacing PartsIndex FiguresTables Page Read This First Page Xii System Features System OverviewPhysical Description Front View of the Portable ComputerKeyboard Indicators Status DisplayDiskette-Drive Access Indicator Password Battery Charge GaugeSystem Power Power ConservationInterrupt Assignments Interrupt AssignmentsTechnical Specifications Technical SpecificationsConnectors Video Keyboard Main Battery AC Adapter Environmental Computer Initial User Contact Visual InspectionPage If an external mouse is connected, verify the following Observing the Boot RoutineIf an external monitor is connected, verify the following Page Eliminating Resource Conflicts Getting HelpPage Beep Codes and Error Messages Post Beep CodesPost Beep Codes System Error Messages System Error MessagesParity error in system Faulty main board Timer circuit on main Faulty main board Running the Dell Diagnostics Removing and Replacing Parts Recommended ToolsScrew Identification and Tightening Screw IdentificationPrecautionary Measures Main Battery RemovalRemove the hard-disk drive assembly Hard-Disk Drive RemovalDiskette Drive, Secondary Battery, or CD-ROM Removal Remove any PC CardsZIF Connectors Releasing a ZIF ConnectorExploded Views of Components and Assemblies Exploded View-Computer10. Exploded View-LCD Assembly 11. Exploded View-Top Assembly 12. Exploded View-Bottom Assembly Factory Repair Parts and Assemblies Factory Repair Parts and AssembliesSVC,SYS,PLN,LMP133ST BRKT,HD,12.5MM,LMP LCD,TFT,SVGA,12.1,LMP,IBM CVR,HNG,CTR,LMP TSH,WUE,SVC,LMP Naming Conventions Deleting the Password 13. Capacitor C146 LocationLift the hard-disk drive out of the bottom case Remove the hard-disk drive assembly from the computerHard-Disk Drive 15. Diskette Drive Assembly Diskette DriveCD-ROM Memory Module 17. Memory Module RemovalLCD Assembly 18. LCD Assembly RemovalRemove the LCD assembly Front BezelLCD Panel Remove the front bezelInverter Board MicrophoneLCD Assembly Latches 22. LCD Assembly Latches RemovalPower/Suspend Indicator Remove the power/suspend indicatorRemove the latches Back BezelRemove the inverter board Keyboard 25. Keyboard RemovalRemove the keyboard from the computer Top Assembly Production NoteRemove the top assembly from the computer Separate the top assembly from the bottom assemblyDisconnect the status-display board connector Remove the keyboardRemove the top assembly SpeakersRemove the status display board from the top assembly Status Display BoardRemove the I/R device from the top assembly DeviceRemove the power button and spring from the top assembly Power ButtonRemove power button Remove the status display boardTouch Pad Remove the touch pad buttonsBottom Assembly 32. Bottom AssemblyRemove the processor board from the main board Processor BoardOpen the cover Remove the keyboard Remove the power supply board from the main board Power Supply BoardOpen the cover Remove the top assembly Audio Board 35. Audio Board RemovalRemove the audio card Remove the power supply boardMain Board Remove the black mylar cover on the PC Card cageBend the options bay wall see Figure Remove the main boardCache Board Open the cover Remove the main boardPage Index Eliminating resource conflicts Error messages, 3-3,3-6 Speaker removal Specifications technical Standby mode Status display board removal