Dell LM P-133ST manual Bottom Assembly

Page 75

Bottom Assembly

This bottom assembly consists of a plastic base, the main board, and the main board components. The subsections that follow provide removal and replace- ment procedures for the components of the bottom assembly.

processor board

power supply board

audio board

main board

cache board

options bay wall

base

Figure 4-32. Bottom Assembly

Removing and Replacing Parts 4-39

Image 75

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 Observing the Boot Routine If an external monitor is connected, verify the followingIf an external mouse 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 PasswordRemove the hard-disk drive assembly from the computer Hard-Disk DriveLift the hard-disk drive out of the bottom case 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 IndicatorBack Bezel Remove the inverter boardRemove the latches 25. Keyboard Removal KeyboardRemove the keyboard from the computer Production Note Top AssemblyRemove the keyboard Separate the top assembly from the bottom assemblyDisconnect the status-display board connector Remove the top assembly from the computerSpeakers Remove the top assemblyStatus Display Board Remove the status display board from the top assemblyDevice Remove the I/R device from the top assemblyRemove the status display board Power ButtonRemove power button Remove the power button and spring from the top assemblyRemove the touch pad buttons Touch Pad32. Bottom Assembly Bottom AssemblyProcessor Board Open the cover Remove the keyboardRemove the processor board from the main board Power Supply Board Open the cover Remove the top assemblyRemove the power supply board from the main board 35. Audio Board Removal Audio BoardRemove the black mylar cover on the PC Card cage Remove the power supply boardMain Board Remove the audio cardRemove 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