Compaq 340 Series manual RTC Battery

Page 41

Removal and Replacement Procedures

4.9RTC Battery

ÅWARNING: This computer contains an internal lithium battery. There is a risk of fire and burns if the battery is not handled properly. To reduce the risk of personal injury:

-Do not attempt to recharge the battery.

-Do not expose to temperatures higher than 140 F (60 C).

-Do not disassemble, crush, puncture, short circuit contacts, ordispose of in fire or water.

-Replace battery only with the Compaq spare designated for this product.

1.Perform the preparation procedures.

2.Remove the hood.

3.Remove the power supply. (Section 4.3)

4.Remove the diskette drive. (Section 4.4.2)

5.Locate the RTC battery.

6.Release the retaining tab and push the battery forward, up, and out of the battery retainer.

To replace the RTC battery, reverse this sequence.

Compaq Prosignia Desktop 340 Series Computer

4–15

Image 41

Contents

Maintenance & Service Guide Page Contents Index Product Description Front Panel Controls and LEDs Computer FeaturesSystem Design Rear Panel Connectors Serial Number Location Spare Parts System Unit System Unit Description Spare Part Mass Storage Devices Mass Storage Devices Description Spare Part Cables Cables Description Spare Part Standard and Optional Boards Standard and Optional Boards Description Spare Part Miscellaneous Parts Description Spare Part Miscellaneous PartsMonitors KeyboardsSpare Parts Electrostatic Discharge Information Removal and Replacement Preliminaries and Routine CareGenerating Static Typical Electrostatic VoltagesStatic Shielding Protection Levels Preventing Electrostatic Damage to EquipmentPersonal Grounding Methods and Equipment Recommended Materials and Equipment Grounding WorkstationsCleaning the Computer Case 1 3.2.1 General Cleaning Safety PrecautionsCleaning the Keyboard Routine CareCleaning the Monitor Service ConsiderationsCleaning the Mouse Tools and Software RequirementsLithium Battery Cables and ConnectorsScrews Hard DrivesPreparation for Disassembly Removal and Replacement ProceduresHood Power Supply Item Description CD Optical Drive Removal and Replacement Procedures Diskette Drive Removal and Replacement Procedures Hard Drive Removal and Replacement Procedures Video Card Network Card Fax/Modem Card Memory Module RTC Battery Processor Front Bezel On-Button Board System Board Bracket System Board 15 1/O Panel Removal and Replacement Procedures Jumpers and Switches Description System Board Jumpers and SwitchesSystem Board Jumpers and Switches Clearing and Setting Passwords Resetting Cmos System Board Jumpers and Switches Index Index Index-3 Index Compaq Prosignia Desktop 340 Series Computer