HP Omnibook 800csct Service Manual
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33Docking MessagesSelected; notselectedSelectedNot available if Boot devices onlyis selected in Boot Devicessubmenu.Passwords…Password options…User Passwordrequired to:Turn ON,Always;Turn ON, afterFN-OFF;Undock;Save SetupchangesnoselectionsPassword is required beforeproceeding beyond the selecteditems, and is ALWAYS required tosave changes to thesecheckboxes.Admin Passwordrequired to savechanges to PC IDSelected; notselectedNot selectedAdmin password can be used inplace of any user password.Disable hard diskdrive lockSelected; notselectedNot selectedCheck to remove password lockingof hard drive.Set Admin passwordnoneAllows entry of Admin password.Set User passwordnoneAllows entry of User password.PC IdentificationblankThe text entered (max of 4 lines of24 chars) will be displayed at boot.Enable CacheSelected; notselectedSelectedEnable cache for fasterperformance.Status Panel EnableSelected; notselectedSelectedEnable status panel.Status PanelSettings…Status PanelPositionUpper left; Lowerleft; Upper right;Lower rightLower rightDetermine where status panelappears in the display.Items to Show in SPDetermine what items aredisplayed in the status panel, andwhen they are displayedBattery StatusAlways; Never;Only when low.AlwaysKeyboard StatusAlways; Never;Only whenlocked.Only whenlockedHard Drive StatusAlways; Never;Only when activeOnly whenactive
34Password Configuration The Password Options dialog allows the User and an Administrator to control access to certain portions of the OmniBook. If an Administrator Password is set, then modification of the PC Identification Strings or some SCU settings may be restricted by checking the appropriate checkboxes. Note that even if an Administrator Password is required to Save setup changes, the User Password (and its associated options) can still be changed without knowing the Administrator Password. The Save setup changes option does not apply to changing PC Identification (PCID) Strings. The ability to change PCID strings can only be restricted by the Save modifications to the PC ID texts checkbox available under Admin Password. If the User Password is set, then access to the machine may be restricted (at every turn-on, or only at turn-ons after the machine was turned off by pressing FN+OFF). Also, if Undock is checked, a password will be required before the machine can be undocked. Also, the User Password may be required before some changes to the SCU, even if no Administrator Password has been entered. The following table illustrates which SCU settings are subject to password protection. Table 10 - System Password MatrixSCU FeaturePassword NeverRequiredPassword maybe RequiredDate/Time XBoot DevicesUser or AdminPC IDAdmin onlyStatus Panel XHDD ConfigurationUser or AdminCOM PortsUser or AdminLPT Port/LPT TypeUser or AdminKeyboard Setup XExternal Devices XPower Management XBasic/Advanced AudioUser or AdminUser PW or User PW OptionsUser or AdminAdmin PW when none currently existsUserAdmin PW or Admin PW Options (Admin PW exists)AdminAs mentioned above, PC Identification can only be password-protected via the Administrator Password PC ID option. Any time a password is required, the Administrator password (if defined) may be entered, however, only the Administrator password may be (successfully) entered to satisfy the conditions checked in the Administrator Password required to: group box.
35Input/Output Menu Screen Table 11 - Input/Output Menu SettingsSettingParametersDefaultCommentCOM Ports…Serial Port:NoneCOM1, Addr 3F8, IRQ 4COM2, Addr 2F8, IRQ 3COM3, Addr 3E8, IRQ 4COM4, Addr 2E8, IRQ 3COM1, Addr3F8, IRQ 4The serial port will bemapped to the selectedCOM port. The actualsettings will also dependon the operating systemand Boot Configuration.LPT PortPrinter PortNoneLPT1, Addr 378, IRQ7LPT2, Addr 278, IRQ5LPT1, Addr378, IRQ7The parallel printer portwill be mapped to theselected LPT port. Theactual settings will alsodepend on the operatingsystem and BootConfiguration.LPT TypePort DefinitionStandard AT (Centronics)Bidirectional (PS-2)Bidirectional(PS-2)Select the parallel portdefinition.Keyboard Setup…Key Delay¼ sec; ½ sec; ¾ sec; 1sec½ secSelect the delay period towait (after a key ispressed) before it willbegin to repeat.
36SettingParametersDefaultCommentKey RepeatRate2 cps; 6 cps; 10 cps; 15cps; 20 cps; 30 cps10 cpsSelect the rate at whichkeys will be repeated whenthey are held down longerthan the Key Delay period.KeyboardNumlockSelected, Not selectedNot selectedStart computer with NUMLOCK enabled.External Devices…VGA DisplaydeviceExternal VGA if attached,LCD off;Both external VGA andLCDExternalVGA ifattached,LCD off;When ‘External VGA…’ isselected, if an externalVGA monitor is detected, itwill be enabled and theLCD will be turned off.When ‘Both externalVGA…’ is selected, bothare ALWAYS on.Forcerecognition ofexternal VGASelected; Not selectedNot selectedAvailable only when Bothexternal VGA and LCD isselected.Enable ExternalFN KeySelected; Not selectedSelectedWhen enabled, CTRL +ALT on external keyboardacts as FN key.Ignore ExternalPointing DeviceSelected; Not selectedNot selectedThis will ignore anyexternal pointing device.Audio Port…Basic Audio…Disable internalSelected; not selected.Not selected.Disabling internal soundboard removes anypossible conflict with asound board installed inthe dock.Beeper volume:0-74Audio volume0-74Sets master volume, notvolume ceiling.Advanced Audio…If Boot devices only isAudioselected in Boot DevicesIRQ5, 7, 9, 105menu, then the AdvancedDMAChannel0, 1, 31Audio menu will beAddress220, 230, 240, 250220disabled.Wave 2 AudioIRQ1111IRQ is fixed at 11DMA0, 5, 65Video StretchedSelected; not selectedNot SelectedOption available on F1360only. Set video toStretched or Centeredmode (if hardwarecapable).Enabled IrDA IRSelected; not selectedSelectedAllocate resources neededto enable IrDA InfraredPort.
37Power Menu Screen Table 12 - Power Menu SettingsSettingParametersDefaultCommentPower ControlsCPU PowerManagementMaximum;Moderate; NoneMaximumDetermine the amount of CPU-relatedpower savings.Auto Turn-offw/Battery:Never; after 1, 2, 3,4, 5, 10, 15, 20, or30 minutesafter 3 minutesWhen the system has been idle for theselected period, the computer will beturned off. (Battery power only.)HDD power-downw/Battery:Never; after 1, 2, 3,4, 5, 10, or 15minutes1 minuteThe hard disk will be powered down ifthere has been no disk access for theselected period. Hard disk power willbe restored when the disk is neededagain. (Battery power only.)Auto Turn-offw/AC:Never; after 1, 2, 3,4, 5, 10, 15, 20, or30 minutesNeverThe hard disk and display are powereddown if there is no disk access or userinput for the selected period. Harddisk power is restored when the disk isneeded again. Display power isrestored when the ON key is pressed.Enable audiopower savingsSelected; NotselectedNot selectedEnables power-down of audio analogwhen idle. Also shuts off line-in.Port ActivityAuto Turn-off,Even if ActiveIRQ3, IRQ4, IRQ5,IRQ7, IRQ9,IRQ10, IRQ11,IRQ15none selected(all selected onF1360 only)Indicate IRQ activity that should beignored with regard to automatic turn-off.
38Default Menu Screen Table 13 - Default Menu SettingsSettingParametersDefaultCommentFactory DefaultSettingsn/aRestore current setup to factory defaultsettings (except password and PCIdentification).Restore Settingsn/aRestore current setup to settings atSCU startup (except password and PCIdentification).
39Exit Menu Screen . Table 14 - Exit Menu SettingsSettingParametersDefaultCommentSaven/aSave settings and exit SCU. The OmniBook willautomatically reboot.Quitn/aExit SCU without saving settings.VersionInfo…n/aReport current BIOS version info.
40Troubleshooting Tips This section provides various troubleshooting tips for the OmniBook 800 and its accessories. As with all troubleshooting, these tips should be combined with other techniques and tools to effectively diagnose hardware issues. OmniBook Components The following table lists various symptoms of several OmniBook components. Troubleshooting techniques are then listed for both Call Center and Repair Center Personnel. Table 15 - OmniBook Troubleshooting TipsSymptomCall CenterRepair CenterMouseCursor moves on its ownIs the link warped? (The link is the flat piece of plasticMouse grommet (Service Note 800-08). Alternatively, inspectCursor floats in direction different for mouse movementconnecting the mouse to the computer) If so, send the customer a new mouse.for a burr on a contact inside the hole the grommet fits in on the logic board (carefully file off the burr).Cursor sticks to one side of display after mouse has moved in opposite directionOtherwise, send in for repair.Sticking can be an open or missing resistor on the logic board. Replace logic assy.Cursor won’t go to edge of displayPress firmly with mouse when reaching edge of screen. If problem still occurs, send in for repair.Mouse grommet or paw active assy; if cursor won’t move at all, most probably a bad paw active assy. Also could be an open resistor on logic board.Cursor jittersSend in for repairPaw active assy or warped link.Mouse button press not recognizedDoes customer have access to another OB with a mouse? If so, swap mouse. If OB works now, send a new mouse. If not, send in for repair.Mouse or paw active assemblyStiff up/down motionSend in for repairPaw active assembly (Service Note 800-10)Fine positioning of cursor difficultSome vertical backlash on the right side of the display is normal. It requires slightly more mouse movement on the right side before the cursor moves.Paw active assemblyDisplayBrightness does not adjustThe adjustment steps are very small and may not be very noticeable. Also, TFT display will not darken as much as a CSTN, so customer’s previous experiences with notebooks may affect expectation.Verify brightness adjusts properly. If ineffective, replace display.Garbage on display when first turned onTry a hard reset. If this doesn’t help, send in for repair.Replace logic PCA if problem occurs on both internal and
41SymptomCall CenterRepair Centerexternal displays.Screen whiteSend in for repair.Replace displayBright or missing pixels or linesExplain display spec for missing pixels. Send in for repair if it fails display spec criteria.Replace display if it fails display spec criteria.Intermittent or no displayPress [Fn]+[SysRq]. If ineffective, send in for repair.Check for display cable pinched in case parts.Power/batteryShort battery lifeTurn display brightness down.New BIOS v 1.02.00New BIOS v 1.02.00Run PWR800.exe to measure)Set Computer and Hard Drive “Idle Time Before Turn-off” to equal values (Select OmniBook Power Management in Control Panel).battery life (program obtainable from the MCD Internal Web at http//webmcd.cv.hp.com/prods upp/ob800/software/index.htmRemove any PCMCIA cards and run PWR800.exeIf above ineffective, send in for repair.Battery gauge falls rapidlyNormal behavior at higher levels. Does the customer have another battery to try?Battery won’t chargeDoes customer have access to another battery and ac adapter? If so, have them try different combinations to isolate to battery, ac adapter or OmniBook, and send defective component in for replacement. If not, send in all 3 for repair.Isolate to defective component (battery, ac adapter or logic board).Computer won’t turn on/won’t bootOn ac or batteryIs the charge light on when on AC? If not, try another AC adapter if available. If yes, hard reset. If no response, remove battery and AC, letting computer sit for a minute. Reinsert battery and press reset button. If this works, update the BIOS. Any sound? If yes, plug in external display and press [Fn]+[SysRq].Check for display cable pinched in case parts. Is charge light on when on AC? If no, replace CPU board first, then logic board. If yes, try to boot off a floppy. If this works, reburn BIOS. If it’s still bad, then replace HD. If still bad, replace logic board and reinstall old HD.On battery (OK on ac)What does the fuel gauge read? If empty, press [f4]+[ON]. If still empty, does customer have a 2nd battery to try? If not, send in for repair.Try a known good battery first. Examine battery contacts for contamination or physical damage. Then replace logic board.Error message: “Invalid system disk”If floppy drive is connected, check for non-system (boot) floppy disk in drive. If so, remove floppy and reset. Use recovery CD to rebuild system if still bad.Will computer boot off floppy drive? If yes, verify keyboard support plate is of later design or has I/O insulator (see Service Note 800-09). Verify hard drive insulator is aboveError message: “Floppy diskthe keyboard support plate tabs
42SymptomCall CenterRepair Centerfault – insert valid boot disk and press any key”and not trapped under them (where they can short hard drive PCA). Then try another hard drive. If problem is solved,Error message: “Auto IDE error” or “HDD not ready”Verify latest BIOS (v1.02.00). Send in for repair.original HD may be corrupted, have a virus or be defective. If problem persists, reinstall old HD and try replacing the CPU board and if that doesn’t work, then replace the logic board.Lockup/computer freezesAfter warm dockingVerify latest BIOS (v1.02.00).New BIOS v 1.02.00After hot dockingDoes the user have an external monitor? If so, BIOS versions after 1.00.00 may exhibit this problem about 5% of the time. A future revision of the BIOS will address this issue.After undockingIs there a card in dock? Remove card from undocked configuration. Is the user an HP COE user? If so, does the user use COE Connect and COE Disconnect? If not, refer them to their IT dept. for instructions.While bootingPress reset button. If ineffective, can user boot from floppy? If no, send in for repair. If yes, run CHKDSK /f on hard drive, then attempt to boot from HD again.Can you boot from floppy? If no, replace CPU first, then logic board. If yes, run CHKDSK /f on hard drive, then attempt to boot from HD again. Run Scandisk to check for HD platter defects. Verify keyboard support plate is of later design or has I/O insulator (Service Note 800-09).After turning onNew BIOS v 1.02.00New BIOS v 1.02.00. Try replacing HD, then CPU, and then logic board.When shutting down, during “Windows 95 Shutting Down” screenMicrosoft has a web page to help with these problems, which are usually the result of driver conflicts. (www.microsoft.com/kb/articles/q 145/9/26.htm) If HP COE user, make certain they are using COE Disconnect. Refer them to their IT department.KeyboardKeys stiffIs customer comparing OB800 keyboard to other notebook or desktop keyboards? Is customerIf the keyboard is stiff, replace with a new keyboard of datecode Aug 1 or later.