Compaq 1245 specifications Specifications, Physical and Environmental

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Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations

Specifications

This chapter covers the following specifications for the Model 1245 Portable Computer:

System interrupts

Memory Expansion

System DMA

Battery Pack

System I/O Address

Diskette Drive

System memory Catalog

Hard Drive

Physical & environmental

CD Drive

Display

Physical and Environmental

Computer Specifications

Dimensions

Height

Depth

Width

Weight

Stand-Alone (Battery Pack) Power

Requirements

Nominal Operating

Maximum Average

Peak Operating

AC Power Requirements

Operating Voltage

Operating Current

Operating Frequency

Maximum Transient

Operating Temperature

Non-operating Temperature

Operating Relative Humidity (non-

condensing)

U.S.		Metric
1.97 in		4.95 cm
12.20 in		31.00 cm
10.08 in		25.60 cm
6.88 lb		3.34 kg

NiMH

W @ 9.6 V

W @ 9.6 V

W @ 9.6 V

100-240 V

0.8/0.4 A RMS

47-63 Hz

Meets IEC 801-4 and IEC801-5

1kV for 50 ns

50° to 95 °F	10° to 35 °C
-4° to 140 °F	-20° to 60 °C
10 to 90%	35°C to 90%

Non-operating Relative Humidity	5 to 95%	60°C to 95%
(tw = 38.7°C max)
Operating Altitude	0 to 10,000 ft	0 to 3.15 km
Non-operatingAltitude	0 to 30,000 ft	0 to 9.14 km
Operating Shock	10 G, 11 ms, half sine
Non operating Shock	240 G, 2 ms, half sine
Operating Vibration	0.5 G
Non-operating Vibration	1.5 G

NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. The Compaq Presario Model 1245 Portable Computer operates well within this range of temperatures.

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Contents Maintenance & Service Guide Maintenance & Service Guide Preface SymbolsProduct Description CompaqBattery ES NiMH System Memory 32 MB Models & FeaturesDisplay 12 HPA Processor Hard Drive CD Drive 24× MAX ModemControls and Lights Front Panel ComponentsLeft Side Components Right Side Components Bottom of Unit Rear Connectors Power Management for Windows Power Management Properties Power Management SettingsDisplay Properties Sleep Mode To Initiate To End Indicators Hibernation ModeRebooting After a Lockup Servicing Your Computer Full Off Mode Illustrated Parts Catalog System Unit Place cursor over each device to obtain its part numberPlace cursor over each device to obtain its part number BoardsDisplay Assembly Place cursor over each device to obtain its part number Mass Storage DevicesMiscellaneous Cables Kit Cables Power CordMiscellaneous Hardware and Plastics Kit Miscellaneous Hardware and Plastics KitMiscellaneous Parts Description Documentation and SoftwareSpare Part Number Serial Number Location Removal and Replacement ProceduresGenerating Static Electrostatic DischargeService Considerations Select the desired illustration Cables and ConnectorsPlastic Parts ZIF Connectors Ribbon cable position for the 3.2-GB hard drive Ribbon cable position for the CD drive Ribbon cable position for the diskette drive Back to Cables and Connectors Preparing the Computer for Disassembly To remove the battery pack, complete the following steps Removing the Battery PackReplacement Procedures Removing the Palmrest Cover with Touch Pad Prepare the computer for disassemblyWhen replacing the palmrest cover, ensure Return to Removal Removing the Heatspreader Removing the Keyboard Removing the Processor To replace the processor complete the following steps Maintenance & Service Guide Removing the Hard Drive Presario 1200 Series Models Replacement Procedures Removing the CD Drive Maintenance & Service Guide To replace the CD drive, reverse the previous procedures Removing the Battery Charger Board Removing the Modem To replace the modem, reverse the previous procedures Removing the Display Panel Assembly Maintenance & Service Guide Maintenance & Service Guide Maintenance & Service Guide When removing the display panel assembly Return to Removal Removing the Upper CPU Cover Removing the Speaker Assembly Removing the Diskette Drive Fan Assembly System Board Dip Switch Settings Memory ModuleReplacement Procedures System Board Dip Switch Settings Memory Module Removing the Fan AssemblyTo replace the fan assembly, reverse the previous procedure Removing the System Board Remove three standoffs from the system board Maintenance & Service Guide 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 Address Hex System Function Shipping ConfigurationSystem I/O Address System Memory Catalog System Memory CatalogDisplay Memory Expansion Energy Battery PackEnvironmental Requirements Diskette Drive Hard Drives Logical ConfigurationHard Drives Capacity Per Drive Formatted Seek TimesCD Drive 24× CD Drive DimensionsRotational Speed Typical Transfer RateConnector Pin Assignments Increasing Battery Pack Operating Time Battery Pack Operating TimeConditioning a Battery Pack Disposing of a Used Battery PackFollow the Preliminary Steps TroubleshootingRun Computer Checkup Preliminary StepsRunning Post Power-On Self Test PostProbable Cause Recommended ActionPerform Computer Checkup Test Compaq DiagnosticsView System Information Inspect Shipping Preparation Contacting Compaq SupportRemove the Palmrest Cover with Touch Pad Clearing the Power-on PasswordSelect error codes by number or type Diagnostic Error CodesBefore Replacing Parts Troubleshooting Without DiagnosticsSolving Minor Problems Solving Power Problems Solving PC Card Problems