HP Omnibook Xt6050 Service Manual
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HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-5 Suggestions for Troubleshooting Table 3-1. Scope of Diagnostic Tools Functione-DiagtoolsPower-On Self-Test Sycard PCCtest 450 DMI/WMI/ Toptools (if installed) BIOS Setup BootupTests Describes Configures ProcessorTests (System menu)Tests Describes MemoryTests (Memory menu)Tests Describes Describes FanTests (Misc menu) BatteriesTests (CMOS battery only) DisplayTests (Video menu)Describes Configures Hard diskTests (IDE menu)Tests Describes Configures Floppy driveTests (FDD menu)Tests Describes Configures KeyboardTests (KBD menu)Tests Describes PointerTests (Misc menu)Describes AudioTests (System, Misc menus) SerialTests* (Misc menu)Describes Configures ParallelTests* (Misc menu)Describes Configures LANTests* (Misc menu)Describes Configures ModemTests** (User menu)Configures WirelessConfigures InfraredDescribes Configures PS/2 port Tests† (KBD, Misc menus)Configures USB Tests† (USB menu)Describes Configures Docking portTests (System menu, using docks) PCMCIATests*† (Misc menu)Tests Describes AC adapterStatus Docking productsTests ports and internal busStatus Configures Plug-in modulesDescribes * The diagnostic test is more thorough if you use a loop-back connector. ** The test checks only the internal hardware up to the mini-PCI card, and does not check the mini- PCI panel or any external cabling. †Use an appropriate external device to exercise the port. See the help text for the tests in the menu.
3-6 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200 If you cannot isolate the cause of a problem using the above diagnostic tools, use the suggestions in the following table to help find the problem. Table 3-2. Troubleshooting Suggestions SymptomCall Center: Suggestions Repair Center: Likely Causes Repair Center: Comments To help determine likely causes of a problem, determine which replaceable modules are involved in the system function and what roles they play: see the figure on page 1-14 and the table on page 1-15. Startup Does not boot on AC or battery.Check power source. Press system-off switch to reset notebook, then press blue sleep button to turn notebook on. Unplug AC adapter, remove all batteries and any PC cards, press system-off switch to reset notebook, then reconnect power and try again. Do not use touch pad while booting or resuming. Remove all but one SDRAM module and try again. Reinsert any other SDRAM module and try again.AC adapter. SDRAM module. CPU module. Display interface PCA. Motherboard. Display assembly. Hard drive.Check AC adapter. Remove all but one SDRAM module and try again. If power status light does not turn on, reprogram BIOS, replace top case, replace motherboard. If power status light turns on but display remains off, try external monitor. If monitor shows successful boot, replace display assembly. If monitor shows activity but BIOS does not complete, replace display assembly. If monitor is blank, replace display interface PCA, replace display assembly, replace motherboard. If power status light and display turn on, BIOS completes, but OS does not start from hard disk or floppy drive, replace CPU module, replace motherboard. If OS starts from floppy drive, reload hard drive, replace hard drive. Beeps once, spins hard disk, repeats, but does not boot.Make sure at least one SDRAM module is installed.SDRAM module. Does not boot on battery, but boots on AC.Make sure battery is properly installed and fully charged. Check battery level on battery LEDs. Check battery contacts. If available, try another battery.Battery or contacts. Motherboard. Does not boot from floppy drive.Make sure floppy disk is bootable. Make sure floppy drive is installed or connected correctly. Use BIOS Setup to check default boot order and make sure floppy boot is enabled. Try using alternate connection (with or without floppy cable).Floppy drive or contacts. Floppy cable. Motherboard.
HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-7 SymptomCall Center: Suggestions Repair Center: Likely Causes Repair Center: Comments Does not boot from CD in CD/DVD drive moduleMake sure CD is bootable. Use BIOS Setup to check default boot order. Restart notebook.CD/DVD drive module. Motherboard. Sluggish startup or shutdown.Use Tools tab in disk’s Properties sheet to check hard disk. Use Disk Defragmenter to optimize hard disk. Delete temporary and unneeded files.Hard drive. Does not boot into POST.Try removing wireless mini- PCI card.Mini-PCI card. Replace mini-PCI card. Error message such as “Invalid system disk” or “Auto IDE error”.Check for disk in floppy drive. Check boot order in BIOS Setup. Remove and reinstall hard drive.Hard drive contacts. Hard drive.If unit boots from floppy drive, check for corrupt files on hard drive, use Recovery CDs to reinstall factory software onto hard drive, replace hard drive. Password forgotten. Verify proper ownership, then follow removal procedure with owner and record appropriate data—see page 5-1.User must call Technical Support and provide proof of ownership. Password removal is restricted to certain sites. See page 5-1. Power No power. Make sure charged battery is installed or AC adapter connected. Try another battery or AC adapter if available.AC adapter. Battery. Motherboard. Turns off immediately after turning on.Battery may be extremely low. Plug in AC adapter, insert charged battery, or plug in secondary battery module (OB XT/VT6200).Battery. Does not run on battery; empty battery indication.Check battery and contacts. Try another battery if available.Battery or contacts. Motherboard. Beeps repeatedly. Notebook beeps repeatedly when battery is low. Connect AC adapter or replace battery.Battery. Battery does not charge.Make sure AC adapter is connected properly and battery installed properly. Check battery contacts. If available, try another battery and AC adapter. Move notebook away from any nearby heat source. Unplug AC adapter and allow battery to cool. Check for blocked air vents.Battery or contacts. AC adapter. Motherboard. Heatsink.Check battery and AC adapter. Check heatsink.
3-8 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200 SymptomCall Center: Suggestions Repair Center: Likely Causes Repair Center: Comments Notebook has short operating time when on battery.Turn down display brightness. Check timeout settings in Power in Control Panel. Check power management settings in BIOS Setup. Try default settings. Run HP Battery Optimizer (Omnibook XT/VT6200 models). Battery gauge may need calibration. Restart notebook, press F6 when HP logo appears, and follow onscreen instructions. This calibrates battery gauge, and requires four to five hours. You cannot use notebook during this process. During process, you may have to disconnect and reconnect AC adapter to begin recharging. Certain applications can cause excess CPU and power usage. (Users can get Intel Power Monitor from www.intel.com and monitor CPU load.) W hen playing DVD movies on battery power, use Power Options in Control Panel to select Portable/Laptop power scheme. W hen using applications with automatic save feature (such as MS W ord), extend save time or disable to reduce hard disk access and power usage. PCMCIA card use can affect battery life. Some PCMCIA cards draw power even while not in use. Heavy modem use can affect battery operating time.Battery. Motherboard.Battery capacity often decreases after a year or more. Secondary battery does not charge (Omnibook XT/VT6200 models).Check power source. Make sure main battery is fully charged. If not, secondary battery will not charge. Check contacts on second battery.Second battery or contacts. Motherboard. AC adapter does not power notebook.Try another AC adapter, if available.AC adapter. Motherboard.AC adapter cannot be repaired, and must be replaced.
HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-9 SymptomCall Center: Suggestions Repair Center: Likely Causes Repair Center: Comments Battery indicator is inaccurate.Time Remaining is an estimate based on notebook’s power use at that moment. It therefore depends on current task, and assumes power will be used at that rate until battery runs out. So if notebook is currently using good deal of power (such as when reading CD or DVD), Time Remaining likely shows less time than actually remains. Standby/resume General problems. Close all applications before entering (or allowing notebook to enter) Standby or Hibernate mode. If problem appears after installing new software (including drivers), uninstall that software. Contact software vendor for additional support. Notebook resumes slowly from Standby mode.Notebook can take a minute or longer to resume if network card is installed. Blinking cursor appears while system is loading and checking hardware and network connections. W hen hardware is reinitialized, W indows desktop appears. Does not suspend to Standby mode as expected.Notebook won’t suspend if connection to another computer is active. If notebook is busy, it normally finishes current operation before suspending. Does not automatically enter Hibernate mode as expected.Make sure hibernate support is enabled in Power in Control Panel. Also, make sure Hibernate timeouts (Power Schemes tab) for AC and battery power are not set to Never.
3-10 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200 SymptomCall Center: Suggestions Repair Center: Likely Causes Repair Center: Comments Display Dark display, no light.Make sure notebook is turned on and warmed up. Check power supply. Make sure SDRAM modules are installed properly. Adjust display brightness. Press Fn+F5 several times. Try external monitor.Display cable connection. SDRAM modules. CPU module. Display assembly. Motherboard.Check cable connections. Replace SDRAM modules. Make sure CPU module is installed properly, replace CPU module. Check display cable connections, replace display assembly. If external monitor displays no image, replace motherboard. W hite display. Adjust display brightness. Display assembly. Display interface PCA. Erratic display. Display cable connection. Display interface PCA. Display assembly. Motherboard.Check display cable connection. Bright or missing pixels or lines.See quality statement on page 5-2.Display cable connection. Display assembly.Check display cable connection. See quality statement on page 5-2. Punctured display. Declared to be caused by customer abuse. Vertical crack near center of display.Usually caused by closing display with pencil-sized object on keyboard.Declared to be caused by customer abuse. Scratched display glass.Declared to be caused by customer abuse. Local area of dark or light discoloration visible when display is on.Caused by excessive pressure applied to area on screen.Declared to be caused by customer abuse. External display does not work.Check connections. Press Fn+F5 several times. Try display on another computer.External display. Motherboard. Hard disk Hard disk never spins.Check power source. Remove and reinstall hard drive. Check connector.Hard drive or connector. Motherboard.If drive case is damaged, drive may not operate properly. Hard disk makes clunking or scratching noise.Back up disk immediately. W as notebook or drive dropped?Hard drive. Check notebook and drive for evidence of customer abuse. Hard disk makes buzzing or whining noise.Back up disk immediately. Check hard disk installation. Check for alternate noise sources, such as PCMCIA drive or fan.Depends on noise source.
HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-11 SymptomCall Center: Suggestions Repair Center: Likely Causes Repair Center: Comments Files corrupted. Run virus scan program. Check hard disk using Tools tab in disk’s Properties sheet. Test hard disk drive with e-Diagtools diagnostics. Back up files if possible, then use Recovery CDs to reformat hard disk and reinstall factory software. Disk capacity less than normal.Check hard disk using Tools tab in disk’s Properties sheet. Check partitions using Control Panel, Administrative Tools, Computer Management under Storage. Use Recovery CDs to reformat hard disk and reinstall factory software.Hard drive. Disk’s reported capacity is less than actual size.Hard disk allocates space to diagnostic software. This space is unavailable for other uses, and not included in hard disk capacity reported by W indows. Floppy drive General problems. Make sure floppy drive module is installed and connected correctly. Try alternate connection (with or without floppy cable). Use BIOS Setup to make sure FDD controller is enabled.Floppy drive module or contacts. External floppy drive cable. Motherboard. Floppy drive does not work as 3-mode drive.3-mode drive not supported when drive is connected to dock.External floppy drive cable. Floppy drive module. CD/DVD drive module Particular CD or DVD not playing properly.Check disk for proper insertion, dirt, or damage. Clean with soft cloth or replace as needed. If CD was created on CD-RW drive, try using HP certified media. Read and write quality may vary for other media. Cannot read any CD or DVD.Restart notebook. Make sure CD/DVD drive module is inserted properly.CD/DVD drive module. DVD movie stops playing.DVD may be double-sided. Movie may be paused. Press Play button.
3-12 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200 SymptomCall Center: Suggestions Repair Center: Likely Causes Repair Center: Comments Region Code error. DVDs contain embedded regional codes that prevent them from playing outside region in which they are sold. This error occurs when trying to play DVD intended for different region. Important: Most DVD drives allow region code to be changed only a limited number of times (usually no more than four). W hen this limit is reached, last change is hard-coded on DVD drive, and is permanent. Refer to DVD player software help for details.HP warranty does not cover expense of correcting this situation. “System Error: Unable to read drive” message.Make sure disk is clean, undamaged, and inserted correctly. Clean with soft cloth or replace as needed. W ait 5 to 10 seconds after closing tray before pressing Play. Restart notebook. Make sure CD/DVD drive module is installed properly.CD/DVD drive module. Motherboard. All DVD play is erratic.Some DVDs include software called “PC Friendly”. This software can cause errors or erratic play. If needed, uninstall PC Friendly and restart notebook. Keyboard Some or all keys do not work properly.Check settings in Control Panel.Keyboard. Motherboard.Try reinserting ribbon cable in connector on motherboard. Embedded numeric keypad does not work.Press Fn+F8 to activate numeric keypad, and Lock key to turn on number lock. Avoid touching touch pad while booting or resuming.Keyboard. Motherboard. PS/2 keyboard and mouse with Y- adapter do not work.Check devices separately. Y-adapter. PS/2 device. Motherboard.
HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-13 SymptomCall Center: Suggestions Repair Center: Likely Causes Repair Center: Comments Pointing stick General problems. Reset notebook (see page 1-8). Check settings in Control Panel. Make sure pointing stick is enabled in Mouse Properties. By default, pointing stick is disabled if external PS/2 mouse is connected, Use BIOS Setup to check settings.Keyboard. Motherboard.Try reinserting flex cable in connector on motherboard. Special pointing stick features not working.Check Mouse Properties in Control Panel.Keyboard assembly. Motherboard. Touch pad General problems. Reset notebook (see page 1- 8). Check settings in Control Panel. Make sure touch pad is enabled in Mouse Properties. By default, touch pad is disabled if external PS/2 mouse is connected, Use BIOS Setup to check settings. Avoid touching touch pad while booting or resuming.Top case. Motherboard. Special touch pad features not working.Check Mouse Properties in Control Panel.Top case. Motherboard. Click button does not work.Top case. Motherboard. Memory Out of memory error.Make sure C drive has adequate free space. Delete temporary and unneeded files. Use memory troubleshooter in W indows Help. Third-party memory cards have not been tested for use with notebook.SDRAM module. Computer doesn’t boot after adding SDRAM.Use only PC133 (OB XT6050) or PC2100 DDR266 (OB XT/VT6200) SDRAM modules.SDRAM module.
3-14 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200 SymptomCall Center: Suggestions Repair Center: Likely Causes Repair Center: Comments Audio No sound audible. Increase sound volume. Check whether sound is enabled (audio-off button and software controls). Check for sound resource conflicts in Device Manager. Test audio with e-Diagtools diagnostics.Top case. Speaker assembly. Volume PCA. Motherboard.Check operation using headphones or external speakers (volume PCA). Make sure speaker assembly cable is connected. Sound does not record.Check software controls. Test audio with e-Diagtools diagnostics.Display interface PCA. Volume PCA. Motherboard.Check operation using external microphone (volume PCA). Serial/Parallel/USB General problems. Check connections. Restart notebook. Use troubleshooters in W indows Help. Check settings in Control Panel. Check settings in BIOS Setup. Check port settings in Device Manager. Test ports with e-Diagtools diagnostics. For USB: contact device vendor and HP Notebook web site (see page vi) for latest USB drivers. For USB: if the device is powered by the USB port, try the other port.Motherboard. Use loop-back connector when testing serial or parallel port—see page 3-21. Modem General problems. Check settings in Control Panel. Open hardware Device Manager. If modem is disabled, try to enable. If modem has a conflict, try disabling another device. Use analog telephone line (2, 3, or 4 wires), not PBX or digital line. In a hotel, ask for data line. Try disabling error correction and data compression. Test modem with e-Diagtools diagnostics.Mini-PCI modem card Mini-PCI panel. Motherboard.