Dell LM P-133ST manual Password, Battery Charge Gauge

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The AC power indicator with the battery status in- dicator means the battery is defective.

An indicator with one bar on the left means a battery is too hot. Allow the battery to cool to room temperature.

The AC power indicator with the battery status in- dicator and one bar means that the battery is too hot (40° C [104° F] or more) to start charging. Charg- ing starts automatically when the battery cools to below 40° C.

An indicator with no bars means that battery power is low (about 80 percent depleted). This is the first low- battery indication and the computer warns the user with three short, audible beeps. There are about

20 minutes of battery life remaining.

A blinking indicator with no bars means that battery power is critically low (about 95 percent depleted) and needs recharging. There are about 5 minutes of battery life remaining.

An indicator with bars on the right side of the icon indicates the percentage of battery life remaining. Each bar equals 10 percent of battery life.

Battery Charge Gauge

There is a battery charge gauge on the main and second- ary battery. When you press the battery test button (labeled “PUSH”), the appropriate indicator lights up for a few seconds to indicate the amount of charge remaining in the battery.

Password

CAUTION: Dell strongly recommends that the user back up the pass- word onto a diskette. If the user forgets the password and does not have it on diskette, the computer cannot be accessed. In that case, the com- puter must be returned to Dell at the user’s expense. Dell technicians will erase the password by shorting C146, recharge the CMOS battery, and send the computer back at the user’s expense. For the procedure to erase the password, see “Deleting the Password” in Chapter 4.

System Overview

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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 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