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Compaq PRESARIO Presario 1255 Maintenance And Service Manual

Compaq laptop user manual
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Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275

Before You Begin

Removal Sequence
Product Description
Before You Begin
Notice
Preface
Product
Description
Troubleshooting
Illustrated Parts
Catalog
Removal &
Replacement
Procedures
Specifications
Connector Pin
Assignments
Battery Pack
Operations
This online guide is designed to serve the needs of those whose
job it is to repair Compaq products.
This Guide will be periodically maintained and updated online as
needed.
For content comments or questions, contact
To report a technical problem, contact your Regional Support
Center or IM Help Center.
Presario 1200 Series
Specifications
Troubleshooting
Pin Assignments
Presario 1200 Series
Parts Catalog
Battery Operations
Index
Compaq.

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Summary of Contents for Compaq PRESARIO Presario 1255

  • Page 1: Before You Begin

    Assignments Battery Pack Operations This online guide is designed to serve the needs of those whose job it is to repair Compaq products. This Guide will be periodically maintained and updated online as needed. For content comments or questions, contact To report a technical problem, contact your Regional Support Center or IM Help Center.
  • Page 2 Index Notice The information in this guide is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.

  • Page 3: Technician Notes

    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.

  • Page 4: Product Description

    Right Side Components Bottom of Unit Rear Connectors Power Management for Windows 98 Presario 1200 Series Specifications Troubleshooting Pin Assignments Parts Catalog Battery Operations Index Compaq Presario Portable Computers... are a continuation of new generation multimedia portable computers with innovative...

  • Page 5: Models & Features

    Hard Drive CD Drive Modem Battery System Memory Presario 1200 Series Specifications Troubleshooting Pin Assignments Compaq Presario 1200 Series Portable Computer Models Model 1255 12. 1" HPA AMD-K6 333-MHz 3.2-GB (or) 4.0-GB 24× MAX K-56.0 (or) M++56.0 Kbps Data/Fax with ITU V.90...

  • Page 6: Controls And Lights

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Controls and Lights Models and Features Controls and Lights Left Side Components Right Side Components Bottom of Unit Rear Connectors Power Management for Windows Presario 1200 Series...

  • Page 7: Left-Side Components

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Left Side Components Models and Features Controls and Lights Left Side Components Right Side Components Bottom of Unit Rear Connectors Power Management for Windows Presario 1200 Series...

  • Page 8: Right-Side Components

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Right Side Components Models and Features Controls and Lights Left Side Components Right Side Components Bottom of Unit Rear Connectors Power Management for Windows Presario 1200 Series...
  • Page 9 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Bottom of Unit Models and Features Controls and Lights Left Side Components Right Side Components Bottom of Unit Rear Connectors Power Management for Windows Presario 1200 Series...

  • Page 10: Rear Connectors

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Rear Connectors Models and Features Controls and Lights Left Side Components Right Side Components Bottom of Unit Rear Connectors Power Management for Windows Presario 1200 Series Specifications...

  • Page 11: Power Management

    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 Product Description Pin Assignments Index Power Management for Windows 98 The following power management features are available for conserving AC power and extending battery operating time: Power Management Settings...

  • Page 12: Power Management Settings

    (while under program control that monitors Sleep), and modem use. You can select different conditions or power schemes through Power Management.The optional settings are Home/Office Desk, Portable/ Laptop, and Always On. From the default settings, you can change the following settings: the System goes to Sleep (Standby) mode...
  • Page 13 You can select Sleep mode instead of turning off the computer when you have finished using it. This allows the computer to wake up faster than turning it off and saves power over the active (On) mode. Compaq Presario Notebook computers have two levels of sleep - Hibernation and Sleep.

  • Page 14: Hibernation Mode

    Maintenance & Service Guide Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Home Page Notice Illustrated Parts Catalog Pin Assignments Power Management for Windows 98 Hibernation Mode Hibernation helps conserve battery life and protect your data. Hibernation can be a routine power saving event, or can be the result of a low battery condition.

  • Page 15: Battery Operating Time

    Maintenance & Service Guide Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Home Page Notice Illustrated Parts Catalog Pin Assignments Power Management for Windows 98 Battery Operating Time Battery operating time is affected by variables, such as the following: Power conservation settings Hardware...
  • Page 16 Maintenance & Service Guide Presario 1200 Series Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations Power Management for Windows 98 Rebooting After a Lockup Occasionally you may encounter a frozen keyboard or a locked screen.
  • Page 17 Maintenance & Service Guide Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Home Page Notice Illustrated Parts Catalog Pin Assignments Power Management for Windows 98 Servicing Your Computer - Full Off Mode If you need to install or replace components in your system, you must turn the computer off completely.

  • Page 18: Troubleshooting

    Contacting Compaq Support Presario 1200 Series Specifications Troubleshooting Pin Assignments This section covers troubleshooting information for the Compaq Presario 1200 Series Portable Computers. The basic steps in troubleshooting include: 1. Follow the Steps. 2. Run the (POST). 3. If you are unable to run...

  • Page 19: Preliminary Steps

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Preliminary Steps Before running POST, complete the following preliminary steps: 1. If a power-on password has been established, type the password and press the Enter key. If the password is not known, 2.

  • Page 20: Power On Self Test Messages

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Power-On Self Test (POST) Running POST To run POST, complete the following steps: Turn off the computer; then, turn on the computer. If POST does not detect any errors, the computer will not beep.

  • Page 21: Clearing The Power-On Password

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Clearing the Power-on Password Presario 1200 Series Specifications Troubleshooting Pin Assignments Parts Catalog Battery Operations Index Clearing the power-on password requires removing all Setup attributes that are programmed in the...

  • Page 22: Compaq Diagnostics

    Product Description Compaq Diagnostics Compaq Diagnostics is installed on the hard drive of the computer. Run the Diagnostics utilities when you want to view or test system information and if you have installed or connected devices. If you run Compaq Diagnostics from a diskette, ensure that it is version 10.11 or later.

  • Page 23: Diagnostic Error Codes

    Product Description Diagnostic Error Codes Diagnostic error codes occur if the system recognizes a problem while running the Compaq Diagnostic program. These error codes help identify possibly defective subassemblies. The following tables list error codes, a description of the error condition, and the action required to resolve the error condition.

  • Page 24: Troubleshooting Without Diagnostics

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Troubleshooting Without Diagnostics This section provides information about how to identify and correct some common hardware, memory, and software problems. It also explains several types of common messages that may be displayed on the screen. The following pages contain troubleshooting information on: Audio Battery/Battery gauge...

  • Page 25: Solving Minor Problems

    Check the drive letter in the path statement. Use another diskette. Run Computer Checkup from the Compaq Diagnostics diskette. Format the diskette. At the system prompt, enter FORMAT A: Use the type of diskette required by the drive.

  • Page 26: Solving Pc Card Problems

    PC Card in MS-DOS mode. Contact your Compaq- authorized service provider for a list of PC Cards tested successfully in Compaq PC Card platforms. Ensure that the card is inserted in the correct orientation. Check and secure telephone connection.

  • Page 27: Contacting Compaq Support

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Contacting Compaq Support Obtain the following information before contacting Compaq Reseller Support: Product name Product serial number Purchase date Conditions under which the problem occurred...

  • Page 28: Illustrated Parts Catalog

    Battery Operations Product Description Pin Assignments Index Illustrated Parts Catalog This section provides a breakdown and identifies the spare parts ordering number associated with each item for the Compaq Presario 1200 Series Portable Computers. Cables System Unit Miscellaneous Hardware & Boards...

  • Page 29: System Unit

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description System Unit Place cursor over each device to obtain its part number. System Unit Boards Display Assembly Mass Storage Devices Miscellaneous Keyboards Cable Kit Cables...
  • Page 30 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Boards System Unit Place cursor over each device to obtain its part number. Boards Display Assembly Mass Storage Devices Miscellaneous Cable Kit Cables Miscellaneous Heatspreader:...

  • Page 31: Display Assembly

    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 Product Description Pin Assignments Index Display Assembly System Unit Boards Display Assembly Mass Storage Devices Miscellaneous Cable Kit...

  • Page 32: Mass Storage Devices

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Mass Storage Devices Place cursor over each device to obtain its part System Unit number. Boards Display Assembly Mass Storage Devices Miscellaneous Cable Kit Cables...

  • Page 33: Miscellaneous Cables Kit

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Miscellaneous Cables Kit System Unit Place cursor over each device for a Boards description of that item. Display Assembly Spare Part Number: 330946-001 Mass Storage Devices Miscellaneous...

  • Page 34: Spare Part Number

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Cables System Unit Description Boards Power Cord Display Assembly Mass Storage Devices Miscellaneous Cable Kit Cables Miscellaneous Hardware and Description Plastics Kit Modem Miscellaneous Cables...
  • Page 35 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Miscellaneous Hardware and Plastics Kit System Unit Boards Display Miscellaneous Hardware and Plastics Kit Assembly Mass Storage Devices Miscellaneous Cable Kit Description Cables 1.

  • Page 36: Miscellaneous Parts

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Miscellaneous Parts System Unit Boards Display Assembly Mass Storage Devices Miscellaneous Cable Kit Cables Miscellaneous Use the scroll down menu for the description and Hardware and spare part number of spare parts Plastics Kit...

  • Page 37: Documentation And Software

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Documentation and Software System Unit NOTE: The following information applies only to Boards Models 1255-1267. Display Description Assembly Mass Storage Quick Restore CD Devices Australia Miscellaneous...

  • Page 38: Removal And Replacement Procedures

    Assembly Diskette Drive Fan Assembly System Board Dip Switch Settings Memory Module Presario 1200 Series Specifications Troubleshooting Pin Assignments Report the computer [ Compaq when requesting information or ordering spare parts. Parts Catalog Battery Operations Index ] serial number to...

  • Page 39: Electrostatic Discharge

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to an electrostatic discharge (ESD) may not be affected at all and will work perfectly throughout a normal cycle.

  • Page 40: Service Considerations

    Tool and Software Requirements To service the computer, you need the following: Compaq screwdriver kit (Spare Part No. 161946-001) Torx T-9 screwdriver 3/16-inch and 5mm nut drivers (for screwlocks and standoffs) Small, standard screwdriver...

  • Page 41: Cables And Connectors

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Cables and Connectors Most cables used throughout the units are ribbon cables; they must be handled with extreme care to avoid damage. Use the following precautions when handling cables to prevent damage to the cable or computer: Apply only the required tension to seat or unseat the cables during insertion and removal...

  • Page 42: Zif Connectors

    Maintenance & Service Guide Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Home Page Notice Illustrated Parts Catalog Pin Assignments Presario 1200 Series Preface Product Description Removal & Replacement Procedures Battery Pack Operations ZIF Connectors The computer uses a zero insertion force (ZIF) connector for the keyboard cable to the system board.
  • Page 43 Maintenance & Service Guide Presario 1200 Series Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations The ribbon cable position for the 3.2-GB, 4.0-GB, 4.3-GB, or 6.4-GB hard drive.
  • Page 44 Maintenance & Service Guide Presario 1200 Series Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations The ribbon cable position for the CD drive. Back to Cables and Connectors.
  • Page 45 Maintenance & Service Guide Presario 1200 Series Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations The ribbon cable position for the diskette drive. Back to Cables and Connectors.
  • Page 46 Maintenance & Service Guide Presario 1200 Series Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations The cable position for the speaker assembly. Cables and Connectors.

  • Page 47: Preparing The Computer For Disassembly

    To prevent damage, do not allow metal objects to touch the battery contacts. Place only the battery pack for the Compaq Presario 1200 Series Portable Computers into the battery compartment. Do not force the battery pack into the bay if insertion does not occur easily.

  • Page 48: Removing The Battery Pack

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Battery Pack Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...

  • Page 49: Replacement Procedures

    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 Product Description Pin Assignments Index 2. Pull forward on the battery pack tab and remove the battery pack from the chassis.

  • Page 50: Removing The Palmrest Cover With Touch Pad

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Palmrest Cover with Touch Pad Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad...
  • Page 51 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Presario 1200 Series Specifications Troubleshooting Pin Assignments Parts Catalog Battery Operations Index 4. Turn the computer over (right side up), pull forward on the display latches to release and open the display assembly.

  • Page 52: Removing The Heatspreader

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Heatspreader Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard Processor...

  • Page 53: Removing The Keyboard

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Keyboard Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard Processor...

  • Page 54: Removing The Processor

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Processor Electrostatic Discharge Service Consideration Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard Processor...
  • Page 55 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description To replace the processor complete the following steps: 1. Insert the processor into the slot on the system board. The notch on the left corner of the processor serves as an orientation indicator.
  • Page 56 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description CAUTION: When replacing the system board, ensure the dip switch voltage settings on the system board are correct for the computer model and processor voltage marked on the processor chip. If the system board dip switch voltage settings are not correct, damage may occur to the computer and/or system board.

  • Page 57: Removing The Hard Drive

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Hard Drive Electrostatic Discharge Service Consideration Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...
  • Page 58 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 Product Description Pin Assignments Index 5. Disconnect the hard drive data cable from the hard drive and remove from the chassis.
  • Page 59 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 Product Description Pin Assignments Index To remove the hard drive mounting bracket, remove four screws from the mounting bracket as shown in the...

  • Page 60: Removing The Cd Drive

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the CD Drive Electrostatic Discharge Service Consideration Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...
  • Page 61 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 Product Description Pin Assignments Index 6. Remove the two screws on the bottom of the unit that secure the CD bracket to the system board.
  • Page 62 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 Product Description Pin Assignments Index 7. Disconnect the CD drive cable from the CD drive and remove the CD drive from the chassis.

  • Page 63: Removing The Battery Charger Board

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Battery Charger Board Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...

  • Page 64: Removing The Modem

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Modem Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard Processor...
  • Page 65 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 Product Description Pin Assignments Index 6. Disconnect the modem cable from the modem. To replace the modem, reverse the previous procedures.

  • Page 66: Removing The Display Panel Assembly

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Display Panel Assembly Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...
  • Page 67 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 Product Description Pin Assignments Index 7. Disconnect the flex cable attached to the display panel assembly from the ZIF connector on the system board.
  • Page 68 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 Product Description Pin Assignments Index 8. Disconnect the backlight cable attached to the display panel assembly from the connector on the system board.
  • Page 69 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 Product Description Pin Assignments Index 9. Support the back of the display panel assembly and remove two screws from each of the display panel hinges.
  • Page 70 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Presario 1200 Series Specifications Troubleshooting Pin Assignments Parts Catalog Battery Operations Index 10. Gently pull the flex cable attached to the display panel assembly through the slot on the Upper CPU cover and...

  • Page 71: Removing The Upper Cpu Cover

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Upper CPU Cover Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...

  • Page 72: Removing The Speaker Assembly

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Speaker Assembly Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...

  • Page 73: Removing The Diskette Drive

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Diskette Drive Electrostatic Discharge Service Consideration Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...
  • Page 74 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 Product Description Pin Assignments Index 10. Disconnect the diskette drive data cable from the system board.

  • Page 75: Removing The Fan Assembly

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Fan Assembly Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...
  • Page 76 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Presario 1200 Series Specifications Troubleshooting Pin Assignments To remove the fan gasket, complete the following step: Pull the gasket from the fan. To replace the fan assembly, reverse the previous procedure.

  • Page 77: Removing The System Board

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the System Board Electrostatic Discharge Service To remove the system board, complete Considerations the following steps: Cables and Connectors 1. Prepare the Preparing the disassembly.
  • Page 78 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 Product Description Pin Assignments Index 15. Remove three standoffs from the system board. Next Step...
  • Page 79 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 Product Description Pin Assignments Index 16. Remove two screws from the CD Drive mounting rails and remove the mounting rails from the system board.
  • Page 80 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 Product Description Pin Assignments Index 17. Remove three screws from the system board. Next Step...
  • Page 81 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Presario 1200 Series Specifications Troubleshooting Pin Assignments 18. Pull the PCMCIA eject lever out (straight), lift up the right side of the system board and pull forward to remove the system board from the chassis.

  • Page 82: Removing The Memory Module

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Removing the Memory Module Electrostatic Discharge Service Considerations Cables and Connectors Preparing the Computer for Disassembly Battery Pack Palmrest Cover with Touch Pad Heatspreader Keyboard...
  • Page 83 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 Product Description Pin Assignments Index 4. Pull side levers to release the memory module and unplug the memory module from the system board.

  • Page 84: Physical And Environmental

    Operating Shock Non operating Shock Operating Vibration Non-operating Vibration NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. Compaq Presario 1200 Series Portable Computers operate well within this range of temperatures. Presario 1200 Series Specifications Troubleshooting Pin Assignments...

  • Page 85: Specifications

    Pin Assignments System Interrupts System Function Timer Interrupt Standard 101/102-Key or Microsoft Natural Keyboard Programmable interrupt controller Compaq Presario 56K-DF Communications Port (COM1) ES1869 Plug and Play AudioDrive Standard Floppy Disk Controller Printer Port (LPT1) System CMOS/real time clock (free)

  • Page 86: System Dma

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Specifications System DMA Hardware DMA Return to the index list of Specifications. Presario 1200 Series Specifications Troubleshooting Pin Assignments System DMA ES1869 Plug and Play AudioDrive ES1869 Plug and Play AudioDrive Standard Floppy Disk Controller...
  • Page 87 Opti Viper Max Dual PCI Secondary IDE controller Opti Viper Max Dual PCI Primary IDE controller (dual ES1869 Plug and Play Compaq Presario 56K-DF ES1869 Plug and Play Motherboard resources Opti Viper Max Dual PCI Secondary IDE controller Printer Port (LPT1)
  • Page 88 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Specifications System Memory Catalog Memory Address 00000000H - 00000000H 00000000H - 0009FFFFH 000A0000H - 000AFFFFH 000B0000H - 000BFFFFH 000C0000H - 000CBFFFH 000E0000H - 000FFFFFH 00100000H - 01FFFFFFH FD000000H - FDFFFFFFH...
  • Page 89 Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Specifications Display Active Area Height Width Overall Dimensions Width Height Depth Weight Contrast Ratio Brightness Total Power Consumption Active Area Height Width Overall Dimensions...

  • Page 90: Memory Expansion

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Specifications Memory Expansion System Memory 32-MB 32-MB 32-MB 32-MB Return to the index list of Specifications. Presario 1200 Series Specifications Troubleshooting Pin Assignments Memory Expansion Expansion Board Memory...

  • Page 91: Battery Pack

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Specifications Battery Pack Dimensions Height Length Width Weight Energy Nominal Open Circuit Voltage Capacity Power Environmental Requirements Operating Temperature Non-operating Temperature Charging Temperature Presario 1200 Series Specifications...

  • Page 92: Diskette Drive

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Specifications Diskette Drive Capacity per Diskette (High/Low) Diskette Size Number of LED Indicators (Read/Write) Number of Drives Supported Drive Rotation (rpm) Transfer Rate (Kbps) Bytes per Sector Sectors per Track (High/Low)

  • Page 93: Hard Drives

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Specifications Hard Drives Capacity Per Drive (Formatted) Drive Type Logical Configuration Cylinders Heads Sectors per track Bytes per sector Seek Times (Typical, Including settling in ms) Single track...
  • Page 94 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 Product Description Pin Assignments Index Specifications CD Drive 24× CD Drive Dimensions 128 x 12.7 x 129 mm Weight 0.5 lbs Rotational Speed...

  • Page 95: Connector Pin Assignments

    Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275 Before You Begin Removal Sequence Product Description Connector Pin Assignments This appendix provides connector pin assignment tables for Compaq Presario 1200 Series Portable Computers. For more information on connectors, refer to the section on Rear Connectors.

  • Page 96: Disposing Of A Used Battery Pack

    Li ion Battery Pack Disposing of a Used Battery Pack In the interest of safeguarding our environment, Compaq Computer Corporation recommends that nickel metal hydride (NiMH) and lithium ion (Li ion) battery packs be recycled. Battery packs should be handled in accordance with country, state, province, or local regulations.

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