Compaq Troubleshooting 1782 Disk Controller Failure & Opti 82C861 in Presario Models

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Presario 1200 Series

Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Before You Begin

 

Specifications

 

Parts Catalog

 

 

 

 

 

 

 

 

 

 

Removal Sequence

 

Troubleshooting

 

Battery Operations

 

 

 

 

 

 

 

 

 

Index

Product Description

 

Pin Assignments

 

 

 

 

 

 

Specifications

System Interrupts

 

 

System Interrupts

 

 

 

Hardware

System Function

IRQ

 

 

IRQ00

 

Timer Interrupt

IRQ01

 

Standard 101/102-Key or Microsoft

 

 

Natural Keyboard

IRQ02

 

Programmable interrupt controller

IRQ03

 

Compaq Presario 56K-DF

IRQ04

 

Communications Port (COM1)

IRQ05

 

ES1869 Plug and Play AudioDrive

IRQ06

 

Standard Floppy Disk Controller

IRQ07

 

Printer Port (LPT1)

IRQ08

 

System CMOS/real time clock

IRQ09

 

(free)

IRQ10

 

OPTi 82C861 PCI to USB Open Host

 

 

Controller

IRQ11

 

IRQ Holder for PCI Steering

IRQ11

 

NeoMagic MagicGraph 128XD

IRQ12

 

Synaptics PS/2 TouchPad

IRQ13

 

Numeric data processor

IRQ14

 

Primary IDE controller (dual fifo)

IRQ14

 

Opti Viper Max Dual PCI IDE Controller

IRQ15

 

Secondary IDE controller (dual fifo)

IRQ15

 

Opti Viper Max Dual PCI IDE Controller

Return to the index list of Specifications.

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Contents Index Before You BeginIndex Preface SymbolsProduct Description CompaqModels & Features Controls and Lights Front Panel ComponentsLeft Side Components Right Side Components Battery Compartment CD Drive CD Drive Eject ButtonRubber feet Bottom of UnitUSB Keyboard/Mouse Port Rear ConnectorsPower Management for Windows Power Management Properties Power Management SettingsDisplay Properties Sleep Time Out Default Hibernation ModeBattery Operating Time Rebooting After a Lockup Servicing Your Computer Full Off Mode If the problem is intermittent, check TroubleshootingFollow the Preliminary Steps Preliminary Steps Running Post Power-On Self Test PostProbable Cause Recommended ActionRemove the Palmrest Clearing the Power-on PasswordPerform Computer Checkup Test Compaq DiagnosticsView System Information Inspect AudioSelect error codes by number or type Diagnostic Error CodesBefore Replacing Parts Troubleshooting Without DiagnosticsSolving Minor Problems Solving Power Problems Solving PC Card ProblemsShipping Preparation Contacting Compaq SupportIllustrated Parts Catalog System Unit Place cursor over each device to obtain its part numberBoards BoardsDisplay Assembly Number Mass Storage DevicesPlace cursor over each device for a description of that item Miscellaneous Cables KitModem Cables Power CordDescription FrontPage Save Results ComponentMiscellaneous Hardware and Plastics Kit Miscellaneous Hardware and Plastics KitMiscellaneous Parts Description Spare Part Number Documentation and SoftwareQuickFind Part Number Suffix Suffix Month Suffix Month Serial Number Location Removal and Replacement ProceduresGenerating Static Electrostatic DischargeTo service the computer, you need the following Service ConsiderationsRemoving a Cable from a ZIF Connector Cables and ConnectorsSelect the desired illustration Plastic PartsZIF Connectors Models 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, Ribbon cable position for the CD drive Ribbon cable position for the diskette drive Back to Cables and Connectors Preparing the Computer for Disassembly Preparing the Computer for DisassemblyBattery Pack Removing the Battery PackReturn to Removal Replacement ProceduresPalmrest Cover with Touch Pad Removing the Palmrest Cover with Touch PadWhen replacing the palmrest cover, ensure Return to Removal Heatspreader Removing the HeatspreaderTo remove the heatspreader, complete the following steps Keyboard Removing the KeyboardTo remove the keyboard, complete the following steps Processor Removing the ProcessorTo remove the processor, complete the following steps To replace the processor complete the following steps Index Hard Drives Removing the Hard DriveRemoval Sequence Replacement Procedures CD Drive Removing the CD DriveNext Step To replace the CD drive, reverse the previous procedures Battery Charger Board Removing the Battery Charger BoardWhen replacing the battery charger board, ensure Modem Removing the ModemDisconnect the modem cable from the modem Display Panel Assembly Removing the Display Panel AssemblyIndex Index Index When removing the display panel assembly Return to Removal Upper CPU Cover Removing the Upper CPU CoverSpeaker Assembly Removing the Speaker AssemblyRemoving the Diskette Drive When replacing the diskette drive, ensure thatDiskette Drive To remove the diskette drive, complete the following stepsReplacement Procedures Fan Assembly Removing the Fan AssemblyTo replace the fan assembly, reverse the previous procedure System Board Removing the System BoardRemove three standoffs from the system board Index Remove three screws from the system board To replace the system board, reverse the previous procedures Memory Module Removing the Memory ModuleReplacement Procedures Physical and Environmental SpecificationsSystem Interrupts System InterruptsHardware System Function System DMA System DMAHardware DMA System Function System I/O Address System Function Shipping ConfigurationSystem I/O Address Address Hex System Memory Catalog System Memory CatalogTexas Instruments PCI-1131 Card System board extension for PnPActive Area Overall DimensionsContrast Ratio Brightness16-MB Memory Expansion System Memory Expansion Board Memory32-MB 64-MBWeight Energy Battery PackBattery Pack Nickel Metal Hydride NiMH Lithium Ion Environmental RequirementsDiskette Drive Capacity per Diskette Average ms Setting Time msDiskette Size Read/Write Number of Drives SupportedHard Drives Rotational Speed 24× CD DriveTypical Transfer Rate Spin Up time Data Buffer CapacityClick on a link Connector Pin AssignmentsIncreasing Battery Pack Operating Time Battery Pack Operating TimeConditioning a Battery Pack Disposing of a Used Battery Pack

1256, 1272, 1266, 1260, 1274 specifications

The Compaq series of printers, specifically the models 1273, 1267, 1275, 1262, and 1255, represents a noteworthy chapter in the realm of commercial printing technology from the 1990s. Each model was designed to cater to various user needs, ranging from high-quality document printing to efficient office use.

The Compaq 1273 is characterized by its robust performance aimed at small to medium businesses. This model is equipped with high-resolution printing capabilities which allows for sharp and vibrant output, making it ideal for presentations and marketing materials. The 1273 also supports multiple paper sizes, enhancing its versatility for different printing tasks.

Moving on to the Compaq 1267, this model bridges the gap between compact design and high efficiency. It features a user-friendly interface that simplifies the printing process, making it accessible for users with varying tech proficiency. Additionally, the 1267 incorporates a fast print speed, ensuring that tasks are completed quickly without sacrificing quality.

The Compaq 1275 is notable for integrating advanced printing technologies aimed at increasing productivity. This model offers both black-and-white and color printing options, catering to diverse printing needs. Furthermore, the 1275 supports network connectivity, allowing multiple users to share the printer effectively, fostering collaboration within office environments.

The Compaq 1262 places an emphasis on cost-effectiveness, appealing to budget-conscious consumers. It provides essential functionalities without unnecessary features, making it a solid choice for home offices. Despite its lower price point, it still upholds a commendable print quality, ensuring that users do not have to compromise.

Lastly, the Compaq 1255 offers basic printing capabilities that are particularly suited for everyday tasks. It is designed for users who require reliable performance without the bells and whistles of higher-end models. The 1255 is lightweight and compact, making it easy to fit into various spaces, ideal for smaller work areas.

In conclusion, the Compaq series 1273, 1267, 1275, 1262, and 1255 present a range of features catering to different audiences. Each model encapsulates the brand's commitment to quality, efficiency, and user-friendliness, making them attractive options for various printing needs in the business landscape of the 1990s.