HP 1234, 1242 manual Preface, Symbols

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Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

Before You Begin

 

Specifications

 

Parts Catalog

 

 

 

 

 

 

 

 

 

 

Removal Sequence

 

Troubleshooting

 

Battery Operations

 

 

 

 

 

 

 

 

 

Index

Product Description

 

Pin Assignments

 

 

 

 

 

 

Preface

This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the Compaq Presario 1200 Series Portable Computers.

Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1200 Series Portable Computers without notice.

Symbols

The following words and symbols mark special messages throughout this guide.

WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of life.

CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of data.

IMPORTANT: Text set off in this manner presents clarifying information or specific instructions.

NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of information.

Technician Notes

WARNING: Only authorized technicians trained by Compaq should repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, the user should not attempt to make repairs at the component level or to make modifications to any printed circuit board. Improper repairs can create a safety hazard. Any indications of component replacement or printed circuit board modifications may void any warranty

Serial Number

When requesting information or ordering spare parts, the computer serial number should be provided to Compaq. The serial number is located on the bottom of the computer.

Locating Additional Information

The following documentation is available to support this product:

Compaq Presario 1200 Series Portable Computer documentation set

Introducing Windows 95 Guide

Service Training Guides

Compaq Service Advisories and Bulletins

Compaq QuickFind

Compaq Service Quick Reference Guide

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Contents Index Before You BeginParts Catalog Removal SequenceIndex Preface SymbolsSpecifications Parts Catalog Product DescriptionProduct Description AMD-K6 266 MMX Models and FeaturesModels and Features Controls and Lights Front Bezel LightsControls Lights Card Diskette Eject Drive Lever Slot Button Models Features Controls LightsLeft Side Components Left Side ComponentsRight Side Components Models Features Controls Lights Left Side ComponentsBattery CD Drive Compartment Right Side ComponentsMemory Feet Compartment Rear Connectors Power Management For Windows Bottom of UnitBottom of Unit Bottom UnitRear Connectors Rear ConnectorsPower Management For Windows Rear Connectors Power Management for Windows Post TroubleshootingPreliminary Steps Running Post Power-On Self Test PostDiagnostic Error Codes Audio Compaq DiagnosticsComputer Checkup Test View System Information InspectShipping Preparation Contacting Compaq SupportBefore Replacing Parts Troubleshooting Without DiagnosticsSolving Minor Problems Solving Touch Pad/Pointing Device Problems Solving PC Card ProblemsSolving Power Problems Solving Printer ProblemsBattery Pack Operating Time Connector Pin Assignments Illustrated Parts Catalog System Unit System UnitBoards System UnitBoards Display Assembly Display AssemblySystem Unit Boards System Unit Boards Display Assembly Mass Storage DevicesMass Storage Devices Miscellaneous Cables Kit Mass Storage DevicesMiscellaneous Cable Kit Power Cord CablesCables Miscellaneous Hardware and Plastics Kits Miscellaneous Hardware Plastics KitMiscellaneous Parts Documentation Software Miscellaneous Parts Miscellaneous PartsDocumentation Software QuickFind Part Number Suffix Documentation and SoftwareInfo. Not Available DocumentationSerial Number Location Removal and Replacement ProceduresGenerating Static Electrostatic DischargeTo service the computer, you need the following Service ConsiderationsSelect the desired illustration Cables and ConnectorsRemoving a Cable from a ZIF Connector CablesZIF Connectors Maintenance & Service Guide Ribbon cable position for the CD drive Ribbon cable position for the diskette drive Back to Cables and Connectors Battery Pack Removing the Battery PackPrevious procedures Battery pack tabRemove the battery To replace the batteryPalmrest Cover with Touch Pad Removing the Palmrest Cover with Touch PadBattery Operations To remove the heatspreader, complete the following steps Specifications Parts Catalog Removal SequenceRemoving the Heatspreader HeatspreaderRemoving the Keyboard KeyboardTo remove the keyboard, complete the following steps To replace Connector onDisconnect the flex Cable from the ZIFTo remove the processor, complete the following steps Removing the ProcessorTo replace the processor complete the following steps Hard Drives Removing the 3.2-GB, 4.1-GB, and 6.4-GB Hard DrivesRemove from Disconnect the hardDrive data cable from Hard driveSteps To remove the hardDrive mounting bracket Complete the followingRemoving the CD Drive Open the CD drive tray using a small paper clip CD drive from Disconnect the CDDrive cable from the CD Drive and removeBattery Charger Board Removing the Battery Charger BoardRemoving the Modem To replace the modem DisconnectModem cable from ModemDisplay Panel Assembly Removing the Display Panel AssemblyOn the system board Display panel assemblyFrom the ZIF connector Cable attached toAssembly from Backlight cable attachedTo the display panel Two screws from each Assembly and removeSupport the back Display panelAssembly flex Panel assembly withPanel assembly, reverse When removingUpper CPU Cover Removing the Upper CPU CoverSpeaker Assembly Removing the Speaker AssemblyTo remove the diskette drive, complete the following steps Fan Assembly System Board Dip Switch Settings Memory ModuleRemoving the Diskette Drive Diskette DriveTo replace the diskette Diskette drive dataCable from the system BoardRemoving the Fan Assembly Fan AssemblySystem Board Dip Switch Settings Memory Module To remove the fan Assembly, reversePrevious procedure Fan assemblySystem Board Dip Switch Settings Memory ModuleRemoving the System Board To remove the system board, complete the following stepsStandoffs from Remove threeRemove the mounting Remove two screwsFrom the CD Drive Mounting railsScrews from the system Pull the Pcmcia eject lever out straight, lift Up the right side of the system board and pullForward to remove the system board from Specifications Memory Module Removing the Memory ModuleMemory module from Pull side levers toRelease the memory Module and unplugPresario 1200 Series IndexAC Power Requirements DimensionsWeight Stand-Alone Battery Pack Power RequirementsHardware IRQ System Function System InterruptsHardware DMA System Function Address Hex System Function Shipping ConfigurationMemory Address System Function System Memory CatalogBrightness Display DimensionsTotal Power Consumption Contrast RatioCapacity Per Drive Information not available Memory Expansion System Memory Expansion Board Total MemoryCylinders High/Low Number of Read/Write HeadsCapacity Per Drive Logical ConfigurationSeek Times Transfer RateWeight Battery Pack Operating Time Energy Access TimeAverage Random Access Time Spin Up time Nickel Metal Hydride NiMH Lithium Ion Li ion Dimensions
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1242, 1234 specifications

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