HP Book 4150 manual If the second battery doesn’t charge, If the OmniBook stops responding

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Troubleshooting

Solving Problems

∙Check that the light on the ac adapter is on.

∙Check that the battery is fully installed and locked in place.

∙Turn off the OmniBook, then remove the battery and check that the battery contacts are clean.

∙Check that the ac adapter cables are fully plugged in.

∙Move the OmniBook away from any nearby heat source. Unplug the ac adapter and allow the battery to cool down. An elevated battery temperature prevents charging.

∙If available, try another battery and ac adapter.

If the second battery doesn’t charge

∙The OmniBook’s second battery doesn’t charge until the main battery is fully charged.

∙Make sure the ac adapter is plugged into the power source.

∙Check that the light on the ac adapter is on.

∙Check that the second battery module is fully installed and locked in place.

If the OmniBook stops responding

∙Press CTRL+ALT+DEL and end an application that is not responding.

∙Press the blue power button to suspend the OmniBook. Then press the blue button again to turn the OmniBook back on.

∙If nothing happens, insert a straightened paper clip into the system-off button on the left side of the OmniBook. Then press the blue power button to turn on the OmniBook.

If the OmniBook doesn’t suspend as expected

∙If you have a connection to another computer, the OmniBook doesn’t suspend if the connection is actively in use.

∙If the OmniBook is performing an operation, it normally waits for the operation to finish.

∙For Windows 95, 98, or NT, if a CD-ROM drive is present, make sure auto insert notification is disabled. This is the default factory setting. (This is not required for Windows 2000.)

In Windows 95 or Windows 98, view the CD-ROM drive properties in Device Manager.

User’s Handbook

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Contents HP OmniBook User’s Handbook User’s Handbook HP Software Product License Agreement Edition History Contents Troubleshooting Configuring the OmniBookExpanding the OmniBook Specifications and Regulatory Information Support and ServiceIndex Page Introducing the OmniBook Description and Location Getting More InformationIncluded in the OmniBook box Taking InventoryOmniBook-Front View OmniBook FeaturesOmniBook-Side View OmniBook-Back View To set up the OmniBook and Windows Setting Up for the First TimeOr AT Their Local Microsoft Office Operating the OmniBook To start and stop the OmniBook Starting and Stopping the OmniBookTo reset the OmniBook Checking the Status of the OmniBook To check power status and drive activityUsing the OmniBook Pointing Devices To use the built-in pointing devices To adjust the display brightness Using the OmniBook DisplayTo extend the life of the display Windows Adjusting the Audio SystemTo adjust the volume On the KeyboardTo use the Fn hot keys Using the OmniBook KeyboardOmniBook Library To use the embedded keypad Working in Comfort What is RSI?About Repetitive Strain Injury What can I do to avoid RSI? What causes RSI?What if I experience discomfort? Your Chair Preparing Your Work EnvironmentYour Work Posture Your Work SurfaceYour HP Monitor Setting Up Your HP Computing EquipmentWorking in Comfort Document Holders Monitor Use SpecificationsYour HP Keyboard Mice and Other Input Devices Working in Comfort Headphones and Speakers Comfort and Safety ChecklistGeneral Overall Your HP OmniBook Computer Using Your Mobile ComputerPreparing Your Mobile Work Environment Working in Comfort Page Managing Battery Power How Power is Managed To install APM for Windows NT Monitoring Battery PowerFrom the Windows Taskbar To check the battery statusTo respond to a low-battery warning On the BatteryOptimum Charging To recharge a batteryBattery life Charging timeAdapter To replace the batterySafety on To install a second batteryPage Expanding the OmniBook To install hot-swap support Using Plug-In ModulesTake proper action, you could lose data To replace a plug-in module Using Plug-In Modules To identify connectors for external devices Connecting External DevicesTo connect an external monitor To enable the built-in and external displaysTo connect a printer To connect an external keyboard or PS/2 mouseTo insert and remove a PC Card Using PC CardsUsing PC Cards To replace the hard disk drive Installing a Hard Disk DriveInstalling a RAM Expansion Module Installing a RAM Expansion Module Configuring the OmniBook To run the Bios Setup utility Using Bios SetupTo set or change an OmniBook password Configuring Security OptionsTo delete an OmniBook password To attach a security cable Page Troubleshooting If a port on a dock isn’t working Solving ProblemsAccessory Problems If you can’t boot from a CD in a CD-ROM driveIf a DVD drive locks up the computer in Windows Audio ProblemsIf sound is not audible If sound doesn’t record Display ProblemsIf the OmniBook is on, but the screen is blank If an external monitor doesn’t work If the screen is difficult to readIf multiple display support doesn’t work in Windows If files are corrupted Hard Disk Drive ProblemsIf the OmniBook’s hard drive doesn’t spin If the hard disk makes buzzing or whining noiseIf the touch pad or pointing stick doesn’t work Keyboard and Pointing Device ProblemsIf a special feature on the PS/2 mouse doesn’t work If the pointer is difficult to controlIf you have problems with infrared communications If you can’t type the euro symbolWindows NT 4.0 does not support infrared communication If memory doesn’t increase after adding RAM Memory ProblemsPC Card Pcmcia Problems If a message says you are out of memoryIf an I/O card stops communicating properly If the OmniBook gets hot Performance ProblemsIf the OmniBook pauses or runs sluggishly If the OmniBook keeps beeping Power and Battery ProblemsIf the battery doesn’t charge If the OmniBook turns off immediately after it turns onIf the OmniBook stops responding If the second battery doesn’t chargeIf the OmniBook doesn’t suspend as expected If the OmniBook doesn’t automatically hibernate as expected Printing ProblemsIf a serial or parallel printer doesn’t print If the serial mouse doesn’t work Serial, Parallel, and USB ProblemsIf an infrared printer doesn’t print If the left edge of printed output is missingIf the USB port is not working Startup ProblemsIf the OmniBook doesn’t boot from battery power If a serial modem doesn’t work properlyIf the OmniBook doesn’t boot from the floppy disk drive To run the diagnostic test Testing the OperationSpace To create a diagnostic floppy diskRecovering Software To recover the factory installation of Windows Page Support and Service Getting HP OmniBook Assistance Electronic Support ServicesSupport Assistance Customer Support Centers Repair AssistanceCentral/South America Hewlett-Packard Limited Warranty Statement Hewlett-Packard Limited Warranty Statement Specifications and Regulatory Information Bus Architecture Hardware SpecificationsRAM Environmental Limits Major ICs Power Cords Safety InformationLaser Safety Battery SafetyLED Safety Connections to Peripheral Devices Regulatory InformationJapan CanadaDeclaration of Conformity Address InternationalAPM IndexConnecting, See Reference Guide location, 14 Configuring, See Reference Guide location User’s Handbook

Book 4150 specifications

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