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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
Models and
Features
Controls and
Lights
Front Bezel
Lights
Front Bezel
Buttons
Left Side
Components
Right Side
Components
Bottom of
Unit
Rear
Connectors
Power
Management
f Wi d
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
NoticeThe information in this guide is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OREDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING,PERFORMANCE, OR USE OF THIS MATERIAL.
This guide contains information protected by copyright. No part of this guide may bephotocopied or reproduced in any form without prior written consent from CompaqComputer Corporation.
1998 Compaq Computer Corporation.All rights reserved. Printed in the U.S.A.
Compaq, Presario Series Registered U. S. Patent and Trademark Office.
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Preface
This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the Compaq
Presario Series Portable Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario Series Portable Computerswithout notice.
S y m b o ls
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 oflife.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of data.
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Product DescriptionModels and
Features
Controls and
Lights
Front Bezel
Lights
Front Bezel
Buttons
Left Side
Components
Right Side
Components
Bottom of
Unit
Rear
CompaqPresarioSeriesPortableComputer is a
continuationof the newgeneration ofmultimediaportablecomputerswith aninnovative
integrateddesign,outstandingaudio andvideo,advanced corefeatures and
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
Troubleshooting
Preliminary
Steps
Clearing the
Power-On
PasswordPow er-On Self
Test (POST)
Compaq
Diagnostics
Diagnostic Error
Codes
Troubleshooting
Without
Diagnostics
Solving Minor
This section covers troubleshooting information for the Compaq PresarioSeries Portable Computers. The basic steps in troubleshooting include:
1. Follow the Preliminary Steps.
2. Run the Power-On Self-Test (POST).
3. Follow the recommended actions described in the diagnostictables, if you are unable to run POST or if POST displays anerror message.
When following the recommended actions in the Sections on
POST and Diagnostic Error Codes perform them in the order
listed. Rerun POST after each recommended action until theproblem is solved and no error message occurs. Once theproblem is solved, do not complete the remainingrecommended actions.
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
I llustrated Parts Catalog
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Cable Kit
Miscellaneous
Hardware KitMiscellaneous
Plastics Kit
Miscellaneous
Parts
This section provides an breakdown and identifies the spare parts orderingnumber associated with each item(s) for the Compaq Presario Series PortableComputers.
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
Removal and Replacement Procedures
This section explains the removal and replacement procedures for the computer.
Serial Number Location
Dis a s s e m b lyS e q u e n c e
Electrostatic
Discharge
Service
Considerations
Cables andConnectors
Preparing the
Computer for
Disassembly
Battery Pack
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated P arts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Specifications
This chapter covers the following specifications of Compaq Presario Series Portable Computers:
q Computer models
q Physical and environmental
q System Interrupts
q System DMA
q System I/O Address
q System Memory Catalog
q Display
q Memory expansion
q Diskette drive
q Hard drive
q DVD or CD drive
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Connector Pin AssignmentsThis appendix provides connector pin assignment tables for Compaq Presario Series PortableComputers. For more information on connectors, refer to the section on Rear Connectors.
NOTE: The signals in all tables of this appendix are considered active high unless otherwiseindicated by an asterisk (*).
Parallel Connector
Pin Signal P in Signal
1 Strobe* 10 Acknowledge*
2 Data Bit 0 11 Busy
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Battery Pack Operating Time
This appendix covers the following information concerning battery pack operating time:
q Increase battery pack operating timeq Conditioning a battery packq Disposal of a used battery pack
I n c re a s in g B a t t e ry P a c k O p e r a t in g T im e
Battery pack operating time differs depending on several variables. To avoid unnecessary replacement, consider thefollowing variables when determining how long a charged battery pack should last:
q Power management settings
q Hardware configuration
q Software applications
q Installed options
q Display brightness
q Hard drive usage
q Changes in operating temperature
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | TroubleshootingIllustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Models and Features
Models andFeatures
Controls and
Lights
Front Bezel
Lights
Front Bezel
Buttons
Left Side
Components
Right Side
Components
Bottom of
Unit
R
Compaq Presario Series Portable Computer Models
Model 1675 Model 1670
Display 14. 1" TFT 13.3" TFT
Processor AMD-K6 380-Mhz MMX AMD-K6 350-Mhz MMX
Cache 1-MB 1-MB
Hard Drive 6.4-GB 4.3-GB
DVD or CD Drive 2x DVD 24x CD
Modem 56.0 Kbps Data/Fax with PCI 56.0 Kbps Data/Fax with PCI
System Memory 64-MB 64-MB
Model1270
Display 12. 1" TFT
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
Controls and Lights
Models and
Features
Controls andLights
Front BezelLights
Front Bezel
Buttons
Left Side
Components
Right Side
Components
Bottom of
Unit
Rear
1. Display
2. Power(On/Off)Button
3. Keyboard
4. Touch Pad
5. Touch PadButton (Left)
6. HeadphoneJack
7. MicrophoneJack
8. Touch PadButton (Right)
9. IntegratedSpeakers andPorts
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Maintenance & Service GuidePresario Series
Models: 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
Front Bezel Lights
Models and
Features
Controls and
Lights
Front BezelLights
Front Bezel
Buttons
Left Side
Components
Right SideComponents
Bottom of
Unit
Rear
1. Power Light
2. BatteryCharge Light
3. Power Cord
Light
4. Num LockLight
5. Cap LockLight
6. Scroll LockLight
M i & S i G id
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Maintenance & Service GuidePresario Series
Models: 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
Front Bezel Buttons
Models and
Features
Controls and
Lights
Front BezelLights
Front BezelButtons
Left Side
Components
Right SideComponents
Bottom of
Unit
Rear
1. InstantInternet AccessButton
2. Instant
Search Button3. VolumeDown Button
4. ScrollUp/DownButton
5. Volume UpButton
6. Secure E-CommerceButton
(or favoriteWeb site)
7. Instant E-Mail Button
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Right Side Components
Models and
Features
Controls and
Lights
Front Bezel
Lights
Front Bezel
Buttons
Left Side
Components
Right SideComponents
Bottom of
Unit
Rear
1. BatteryCompartment
2. DVD or CDDrive Manual
Eject Hole
3. DVD or CDDrive EjectButton
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Bottom of Unit
Models and
Features
Controls and
Lights
Front Bezel
Lights
Front Bezel
Buttons
Left Side
Components
Right Side
Components
Bottom ofUnit
R
1. MemoryCompartmentDoor
2. Stand Feet
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Rear Connectors
Models and
Features
Controls and
Lights
Front Bezel
Lights
Front Bezel
Buttons
Left Side
Components
Right SideComponents
Bottom of
Unit
RearConnectors
1. AC Adapter
2. UniversalSerial Bus
3. Security Slot
4. Serial Port5. PortReplicator
6. ExternalMonitor Port
7. ParallelPrinter Port
8.Keyboard/MousePort
9. Modem Jack
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Pow er Management for Windows 98
The following power management features are available for conserving AC power and extending battery operating time:
q Power Management Settingsq Sleep
q Hibernation
q Battery operating time
q Rebooting After a Lockup
q Servicing Your Computer - Full Off Mode
Po w e r Ma n a g e m e n t S e t t in g s
Depending on your patterns of computer use, you can set different levels of power management. These different powermanagement levels can be activated based on the amount of time passed since the last system activity. System activityexamples include keyboard or mouse movement, CD or DVD playback (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/ OfficeDesk, Portable/ Laptop, and Always On. From the default settings, you can change the following settings:
q the System goes to Sleep (Standby) modeq the screen times out and goes blankq the hard drive spins down
Each of these system components will go to sleep after the selected or default periods of inactivity. (The setting for harddrive must be less than or equal to the setting for System.)
M i t & S i G id
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
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. Ifthe password is not known, clear the password.
2. Run Computer Checkup.
3. Turn off the computer and its external devices.
4. Disconnect any external devices that you do not want to test. Do not disconnect the printer ifyou want to test it or use it to log error messages.
IMPORTANT:If the problem only occurs when an external device is connected to the computer,the problem may be related to the external device or its cable. Verify this byrunning POST with and without the external device connected.
5. Install loopback plugs in the serial and parallel connectors if you would like to test these ports.
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Presario SeriesModels : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Power-On Self Test (POST)
R u n n i n g P O S T
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. This indicates successful completion of POST test. POST hasrun successfully and boots from the hard drive (or from a bootable diskette if one is installed in the diskette drive).
If POST detects errors, the errors are indicated by screen and/or audible messages. Refer to "Power-On Self-Test (POST)Codes" in the tables for a list of POST codes and their relevant descriptions.
NOTE:If the system is not functioning well enough to run POST, or if the display is not functioning well enough to showPOST error messages, refer to the Troubleshooting tables.
Pow er-On Self-Test Messages
102-System Board Failure
Probable Cause Recommended Action
DMA, timers, etc. Replace the system board.
162-System Options Not Set
Probable Cause Recommended Action
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
Clearing the Power-on Password
Clearing the power-onpassword requires removing allSetup attributes that areprogrammed in the CMOS. The
RTC battery is located on
the system board.
If the password is not known,clear it by performing thefollowing steps:
1. Turn off the computer.
2. Disconnect the power cord.
3. Remove the battery pack.
4 Remove the Palmrest Cover
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
Compaq Diagnostics
Compaq Diagnostics is installed on the hard drive of the computer. Run the Diagnostics utilitieswhen 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.
The Diagnostics menu includes the following utilities:
s Computer Checkup (TEST)
s View System Information (INSPECT)
s Prepare Computer for a Compaq Service Call (RemotePaq)
If you have a problem you cannot solve, run the Diagnostics utilities before you call for support.Run Computer Checkup and select to save the device list to a file and to print or to save the log of
errors. Run the View System Information (INSPECT) utility and select to print or to save thatinformation. Have the files or the printed information available when you call for support.
Co m p u t e r Ch e c k u p ( TES T )
Computer Checkup (TEST) determines whether the various computer components and devices are
Maintenance & Service Guide
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
Contacting Compaq Support
Obtain the following information before contacting Compaq Reseller Support:
q Product nameq Product serial numberq Purchase dateq Conditions under which the problem occurredq Any error messages that have occurredq Hardware configurationq Type of printer connectedq Hardware/software being usedq Printed result of Computer Checkup (TEST)q Printed copies ofCONFIG.SYS and AUTOEXEC.BAT files, if possible
S h ip p in g P re p a ra t io n
To ship the computer, complete the following steps:
1. Back up the critical hard drive files. Ensure that backup tapes/diskette are not exposed to
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Presario SeriesModels : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement P rocedures|Specifications
Pin Assignments|Battery Pack Operations
Boards
System Un it
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Cable Kit
Miscellaneous
Hardware Kit
Miscellaneous
Plastics Kit
MiscellaneousParts
Documentation
and Software
DescriptionSparePartNumber
1.Heatspreader
122702-001
2. VoltageConvertorBoard
352891-001
3. Modem56KData/Faxw/o SRAM
400445-001
4. ProcessorAMD P350-Mhz(Models:1270 and
1670)ProcessorAMD P380-Mhz(Model:1675)
122698-001
123923-001
5. SystemBoard
Maintenance & Service Guide
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Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|SpecificationsPin Assignments|Battery Pack Operations
System Unit
Boards
DisplayAssembly
Mass Storage
Devices
Miscellaneous
Cable Kit
Miscellaneous
Hardware Kit
Miscellaneous
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
DescriptionSparePartNumber
1. Display14.1 TFT(Model:1675)
118165-001
2. Display13.3 TFTw/LVDS(Model:1670)
123924-001
3. Display12.1 TFTw/LVDS(Model:1270)
387544-001
Maintenance & Service Guide
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|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Mass Storage Devices
System Unit
Boards
Display Assembly
Mass Storage
DevicesMiscellaneous
Cable Kit
Miscellaneous
Hardware Kit
Miscellaneous
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
Use the scroll down menu for the description and spare partnumber.
1. 4.3-GB Hard Drive 123927-001 (Models: 1270 and 1670)
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|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Miscellaneous Hardware Kit
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Cable Kit
MiscellaneousHardware Kit
Miscellaneous
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
MiscellaneousHardware Kit
Spare Part Number:346853-001
Description Quantity
1. HardDriveMounting
Bracket
1 each
2. LCDGuide FPC
1 each
3. SpringTorsionPCMCIA
4 each
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Presario SeriesModels : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Miscellaneous Parts
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Cable Kit
Miscellaneous
Hardware Kit
Miscellaneous
Plastics KitMiscellaneousParts
Documentation
and Software
Use the scroll down menu for the description andspare part number of spare parts Not Shown.
MiscellaneousParts
1. ACAdapter
298239-001
2. PortReplicator
102270-001
Miscellaneous Screw Kit (Not Shown) 330959-001
Maintenance & Service GuidePresario Series
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Presario SeriesModels : 1270, 1670, and 1675
|Home Page |Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Documentation and Software
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Cable Kit
Miscellaneous
Hardware Kit
Miscellaneous
Plastics Kit
Miscellaneous
Parts
Documentationand Software
Description Spare Part Number
Quick Restore CD, Belgium Windows 98 Info. Not Available
France Windows 98 Info. Not Available
Germany Windows 98 Info. Not Available
Netherlands Windows 98 Info. Not Available
UK Windows 98 Info. Not Available
Quick Reference Guide Info. Not Available
QuickFind for Windows, North America, Latin America, Asia
Pacific
Info. Not Available
QuickFind for Windows, Europe, Middle East, Africa Info. Not Available
*QuickFind is updated monthly. To complete the QuickFind part number, add thesuffix from the table below for the desired month. If you do not specify the 3-digitsuffix, the default is the current month in which the order is placed.
QuickFind Part Number Suffix
Suffix Month Suffix Month
-001 January -007 July
-002 February -008 August
-003 March -009 September
-004 April -010 October
Maintenance & Service GuidePresario Series
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Pin Assignments|Battery Pack Operations
Electrostatic Discharge
A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs.An electronic device exposed to electrostatic discharge (ESD) may not be affected at all and willwork perfectly throughout a normal cycle. Although, it may function normally for a while, thendegrade in the internal layers, reducing its life expectancy.
Networks built into many integrated circuits provide some protection, but in many cases, thedischarge contains enough power to alter device parameters or melt silicon junctions.
Generating Static
The table shows how different activities generate static electricity and at different electrostaticvoltage levels.
Typical Electrostatic Voltages
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S e rv ic e Co n s id e ra t io n s
Listed below are some of the considerations that you should keep in mind during the disassemblyand assembly of the computer.
T o o l a n d S o f t w a re R e q u ire m e n t s
To service the computer, you need the following:
q Compaq screwdriver kit (Spare Part No. 161946-001)q Torx T-9 screwdriverq 3/16-inch and 5mm nut drivers (for screwlocks and standoffs)q Small, standard screwdriverq Small, Phillips screwdriverq Diagnostics software
S c r e w s
The screws used in the computer are not interchangeable. If an incorrect screw is used during thereassembly process, it can damage the unit. Compaq strongly recommends that all screws
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Ca b le s a n d Co n n e c t o r s
Most cables used throughout the unit are ribbon cables. Cables must be handled with extreme care to avoid damage. Applyonly the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by theconnector whenever possible. In all cases, avoid bending, twisting, or tearing the cables, and ensure that the cables are
routed in such a way that they cannot be caught or snagged by parts being removed or replaced.
C a b l e s
Use the following precautions when handling cables to avoid damage to the cable or computer:
q Always handle cables by their connectors.q Avoid bending, twisting, or pulling on the cables.
q
Apply minimum required force when seating or unseating the cables from their connectors.q Place the cables in such a manner that they cannot be caught or snagged by parts being removed or
replaced.q Handle flex cables with extreme care; they can tear easily.
CAUTION:When servicing these computers, ensure that cables are placed in their proper location duringthe reassembly process. Improper cable placement can cause severe damage to the unit.
S e le c t t h e d e s ire d illu s t r a t io n .
Removing a Cable from a ZIF Connector.
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The computer uses a zero insertion force (ZIF)connector for the keyboard cable to the system board.To remove a cable from a ZIF connector, lift bothcorners of the ZIF connector and slide simultaneouslywith constant light force.
CAUTION:A ZIF connector and itsattached cable can be easily damaged.Handle only the connector slide whenremoving or replacing a cable. Never pullor twist on the cable while it isconnected.
CAUTION:When servicing thiscomputer, ensure that cables are placedin their proper location during thereassembly process. Improper cableplacement can damage the computer.
Back to Cables and Connectors.
M inten n e & Se i e G ide
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The ribbon cable position for the 4.3-GB and 6.4-GB hard drive.
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The ribbon cable position for the CD or DVD drive.
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The ribbon cable position for the diskette drive.
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The cable position for the speaker assembly.
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Pin Assignments|Battery Pack Operations
Removing the Battery Pack
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest Cover
w ith Touch Pad
Keyboard
Heatspreader
To removethe batterypack,complete thefollowingsteps:
1. Slide thebattery packcompartmentdoor downand removeit from thebattery pack.
Next Step
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2. Pull down on the battery
pack tab and
pull the battery pack from
the chassis.
To replace the battery pack,reverse the previousprocedures.
Return to Removal &
Replacement Procedures
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Removing the Palmrest Cover with Touch Pad
D is a s s e m b lyS e q u e n c e
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest
Cover w ithTouch Pad
Keyboard
Heatspreader
Processor
The palmrest coverwith touch pad mustbe removed to gainaccess to any of theinterior componentsof the computer,and it is the firstcomponent that hasto be removed togain access to theinteriorcomponents.
NOTE:
It is notnecessaryto remove
the displaypanelassembly toaccess theinteriorcomponentsof the
Maintenance & Service GuidePresario Series
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4. Turn the computer over(right side up), pull forward onthe display latches to release
and open the displayassembly.
5. Lift up front end of thepalmrest cover with touch padand remove it from the groovein the chassis.
6. Tilt the palmrest cover withtouch pad, allowing it to reston top of the keyboard, anddisconnect the flex cable fromthe LIF connector on thepalmrest cover.
CAUTION:Whenreplacing the palmrestcover with touch pad,ensure that the cable isfully inserted into the
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Removing the Keyboard
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest Cover
w ith Touch Pad
Keyboard
Heatspreader
To removethe keyboard,complete thefollowingsteps:
1. Prepare
the computerfor
disassembly.
2. Removethe palmrest
cover with
touch pad.
3. Gently liftand turn thekeyboard
Maintenance & Service GuidePresario Series
Models : 1270 1670 and 1675
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Removing the Heatspreader
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
ConsiderationsCables and
Connectors
Preparing the
Computer for
Disassembly
Battery PackPalmrest Cover
w ith Touch Pad
Keyboard
Heatspreader
To removetheheatspreader,complete thefollowingsteps:
1. Prepare
the computer
for
disassembly.
2. Remove
the palmrestcover with
touch pad.
3. Gently liftand turn the
Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
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Removing the Processor
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
ConsiderationsCables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest Cover
w ith Touch Pad
Keyboard
Heatspreader
To removetheprocessor,complete thefollowingsteps:
1. Preparethe computer
for
disassembly.
2. Removethe palmrest
cover with
touch pad.
3. Removethe keyboard.
Maintenance & Service GuidePresario Series
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To replace the processor complete the following steps:
IMPORTANT:The notch on the upper left corner of the processor serves as an orientationindicator. Align the notch on the left corner of the processor with the notch onthe left corner of the processor chassis slot.
1. Insert the processor into the slot on the system board.
NOTE: When installing the processor into the chassis slot, be sure that the hole pattern on thechassis slot lines up with the pins on the processor. The processor should drop into thesocket without any force.
2. Insert a small blade screw driver into the top slot opening on the processorand push away from the display to lock the processor.
Return to Removal & Replacement Procedures
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Removing the 4.3-GB or 6.4-GB Hard Drive
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest Cover
w ith Touch Pad
Keyboard
H t d
To removethe harddrive,completethe followingsteps:
1. Preparethecomputer
for
disassembly.
2. Removethe palmrest
cover with
touch pad.
3 R
Maintenance & Service GuidePresario Series
Models : 1270 1670 and 1675
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5. Disconnect the hard drivedata cable from the hard driveand remove from the chassis.
Next Step
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To remove the hard drivemounting bracket, completethe following steps.
Remove four screws from thehard drive mounting bracket.
To replace the hard drive andhard drive mounting bracket,reverse the previous
procedures.
Return to Removal &
Replacement Procedures
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6. Remove two screws fromthe base enclosure whichsecures the DVD or CD drive to
the chassis.
Next Step
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7. Disconnect the DVD or CDdrive cable from the DVD orCD drive and remove the DVDor CD drive from the chassis.
To replace the DVD or CDdrive, reverse the previousprocedures.
Return to Removal &
Replacement Procedures
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Pin Assignments|Battery Pack Operations
Removing the Battery Charger Board
D is a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer forDisassembly
Battery Pack
Palmrest Cover
w ith Touch Pad
To remove thebattery chargerboard, completethe followingsteps:
1. Prepare thecomputer for
disassembly.
2. Remove thepalmrest cover
with touch pad.
3. Remove thekeyboard.
4. Remove theheatspreader.
Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
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Pin Assignments|Battery Pack Operations
Removing the Modem
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
ConsiderationsCables and
Connectors
Preparing the
Computer for
Disassembly
Battery PackPalmrest Cover
w ith Touch Pad
Keyboard
Heatspreader
To removethe modem,complete thefollowingsteps:
1. Prepare
the computer
for
disassembly.
2. Removethe palmrest
cover with
touch pad.
3. Removethe keyboard.
Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
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Pin Assignments|Battery Pack Operations
6. Disconnect the modemcable from the modem.
To replace the modem, reversethe previous procedures.
Return to Removal &
Replacement Procedures
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Pin Assignments|Battery Pack Operations
Removing the Display Panel Assembly
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
ConsiderationsCables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest Cover
w ith Touch Pad
Keyboard
Heatspreader
To removethe displaypanelassembly,complete thefollowingsteps:
1. Prepare
the computer
for
disassembly.
2. Removethe palmrest
cover with
touch pad.
3 Remove
Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
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7. Disconnect the flex datacable attached to the displaypanel assembly from the LowVoltage Differential Signal
(LVDS) connector the on thesystem board.
Next Step
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8. Close the display panel
assembly and push back on
top of the hinge covers and
lift up from the bottom edge ofthe hinge covers to remove thecovers off the chassis.
IMPORTANT:
Carefullyremove thedisplay panel
assemblyhinge covers.
Next Step
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9. Support the back of thedisplay panel assembly andremove two screws from each
of the display panel hinges.
Next Step
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10. Remove the connectoron the end of the display flex
data cable.
IMPORTANT:
Compaqrecommendsreplacing theLVDS interfaceconnector onthe display flex
data cableafterremoving.
CAUTION: Theconnector on the endof the flex cable mustbe removed before thecable can be routedthrough the slot on theU CPU
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Removing the Upper CPU Cover
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
ConsiderationsCables and
Connectors
Preparing the
Computer for
Disassembly
Battery PackPalmrest Cover
w ith Touch Pad
Keyboard
Heatspreader
To removethe UpperCPU covercomplete thefollowingsteps:
1. Preparethe computer
for
disassembly.
2. Removethe palmrest
cover with
touch pad.
3. Removethe keyboard
Maintenance & Service GuidePresario Series
Models: 1270, 1670, and 1675
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8. Remove four screws locatedon the top of the Upper CPUcover.
9. Lift the Upper CPU cover offthe snaps on the chassis whichwill disconnect the powerswitch from the connector onthe system board.
To replace the Upper CPUcover, reverse the previousprocedures.
Return to Removal &
Replacement Procedures
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Removing the Speaker Assembly
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
To removethe speakerassembly,complete thefollowingsteps:
1. Preparethe computer
for
disassembly.
2. Removethe palmrest
cover with
touch pad.
3. Removethe keyboard
Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
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Removing the Diskette Drive
D is a s s e m b l y
S e q u e n c e
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
To remove thediskette drive,complete thefollowing steps:
1. Prepare the
computer for
disassembly.
2. Remove thepalmrest cover
with touch pad.
3. Remove the
keyboard.
4. Remove theheatspreader.
Maintenance & Service GuidePresario Series
Models : 1270, 1670, and 1675
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Removing the Fan Assembly
Dis a s s e m b ly
S e q u e n c e
Electrostatic
DischargeService
Considerations
Cables and
Connectors
Preparing the
Computer forDisassembly
Battery Pack
Palmrest Cover
w ith Touch Pad
To removethe fanassembly,complete thefollowingsteps:
1. Preparethe computer
for
disassembly.
2. Removethe palmrest
cover withtouch pad.
3. Removethe keyboard.
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15. Remove five standoffsfrom the system board.
Next Step
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Pin Assignments|Battery Pack Operations
18. Pull the PCMCIA eject lever out (straight), lift up the rightside of the system board and pull forward to remove thesystem board from the chassis.
To replace the system board, reverse the previousprocedures.
IMPORTANT: Remove all cables from the system board.
Dip Switch System Board Settings
Return to Removal & Replacement Procedures
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g | p | p
Pin Assignments|Battery Pack Operations
For Models: 1670 and 1675
CAUTION: Only change settings 1-5 on SW1 . Settings 6-10 vary by model and should not be changed when replacing the
system board. Ensure the dip switch voltage settings (SW1 and SW3 ) on the system board are correct for the computermodel and processor voltage marked on the processor chip. If the system board dip switch voltage settings are not correct, damagemay occur to the computer and/or system board.
NOTE: The black area on the dip switch indicates the position of the switch.
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Pin Assignments|Battery Pack Operations
Removing the Memory Module
Dis a s s e m b ly
S e q u e n c e
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest Cover
w ith Touch Pad
Keyboard
Heatspreader
To removethe memorymodule,completethe followingsteps:
1. Preparethecomputer
for
disassembly.
2. Close the
computerand turn thecomputerupsidedown.
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Models : 1270, 1670, and 1675
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Pin Assignments|Battery Pack Operations
4. Pull side levers to releasethe memory module andunplug the memory modulefrom the system board.
To replace the memorymodule, reverse the previousprocedures.
Return to Removal &
Replacement Procedures