Dell LM P-133ST manual Power Supply Board, Open the cover Remove the top assembly

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Power Supply Board

power supply board

main board

Figure 4-34. Power Supply Board Removal

To remove the power supply board, follow these steps:

1.Open the cover.

2.Remove the top assembly.

See “Top Assembly” found earlier in this chapter.

3.Remove the power supply board from the main board.

The power supply board is held in place on the main board by two connectors.

Removing and Replacing Parts 4-41

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Contents 659,&0$18$ Page Contents Chapter Removing and Replacing Parts Chapter Beep Codes and Error MessagesFigures IndexTables Page Read This First Page Xii System Overview System FeaturesFront View of the Portable Computer Physical DescriptionStatus Display Keyboard IndicatorsDiskette-Drive Access Indicator Battery Charge Gauge PasswordPower Conservation System PowerInterrupt Assignments Interrupt AssignmentsTechnical Specifications Technical SpecificationsConnectors Video Keyboard Main Battery AC Adapter Environmental Computer Visual Inspection Initial User ContactPage If an external mouse is connected, verify the following Observing the Boot RoutineIf an external monitor is connected, verify the following Page Getting Help Eliminating Resource ConflictsPage Post Beep Codes Beep Codes and Error MessagesPost 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 Recommended Tools Removing and Replacing PartsScrew Identification Screw Identification and TighteningMain Battery Removal Precautionary MeasuresHard-Disk Drive Removal Remove the hard-disk drive assemblyRemove any PC Cards Diskette Drive, Secondary Battery, or CD-ROM RemovalReleasing a ZIF Connector ZIF ConnectorsExploded View-Computer Exploded Views of Components and Assemblies10. 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 13. Capacitor C146 Location Deleting the PasswordLift the hard-disk drive out of the bottom case Remove the hard-disk drive assembly from the computerHard-Disk Drive Diskette Drive 15. Diskette Drive AssemblyCD-ROM 17. Memory Module Removal Memory Module18. LCD Assembly Removal LCD AssemblyFront Bezel Remove the LCD assemblyRemove the front bezel LCD PanelMicrophone Inverter Board22. LCD Assembly Latches Removal LCD Assembly LatchesRemove the power/suspend indicator Power/Suspend IndicatorRemove the latches Back BezelRemove the inverter board 25. Keyboard Removal KeyboardRemove the keyboard from the computer Production Note Top AssemblyDisconnect the status-display board connector Separate the top assembly from the bottom assemblyRemove the top assembly from the computer Remove the keyboardSpeakers Remove the top assemblyStatus Display Board Remove the status display board from the top assemblyDevice Remove the I/R device from the top assemblyRemove power button Power ButtonRemove the power button and spring from the top assembly Remove the status display boardRemove the touch pad buttons Touch Pad32. Bottom Assembly 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 35. Audio Board Removal Audio BoardMain Board Remove the power supply boardRemove the audio card Remove the black mylar cover on the PC Card cageRemove the main board Bend the options bay wall see FigureOpen the cover Remove the main board Cache BoardPage Index Eliminating resource conflicts Error messages, 3-3,3-6 Speaker removal Specifications technical Standby mode Status display board removal