HP Tc4200 HP Compaq tc4200 Tablet PC - Maintenance and Service Guide - Page 11

Resetting the Tablet PC, 1.3 Power Management - disassembly

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Product Description 1.2 Resetting the Tablet PC If the tablet PC you are servicing has an unknown password, follow these steps to clear the password. These steps also clear CMOS: 1. Prepare the tablet PC for disassembly (refer to Section 6.3, "Preparing the Tablet PC for Disassembly," for more information). 2. Remove the real-time clock (RTC) battery (refer to Section 6.24, "RTC Battery," for more information on removing and replacing the RTC battery). 3. Wait approximately 5 minutes. 4. Replace the RTC battery and reassemble the tablet PC. 5. Connect AC power to the tablet PC. Do not reinsert any battery packs at this time. 6. Turn on the tablet PC. All passwords and all CMOS settings have been cleared. 1.3 Power Management The tablet PC comes with power management features that extend battery operating time and conserve power. The tablet PC supports the following power management features: ■ Standby ■ Hibernation ■ Setting customization by the user ■ Hotkeys for setting the level of performance ■ Battery calibration ■ Lid switch standby/resume ■ Power/standby button ■ Advanced Configuration and Power Management (ACPM) compliance 1-4 Maintenance and Service Guide

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1–4
Maintenance and Service Guide
Product Description
1.2
Resetting the Tablet PC
If the tablet PC you are servicing has an unknown password,
follow these steps to clear the password. These steps also
clear CMOS:
1. Prepare the tablet PC for disassembly (refer to
Section 6.3,
“Preparing the Tablet PC for Disassembly,”
for more
information).
2. Remove the real-time clock (RTC) battery (refer to
Section 6.24, “RTC Battery,”
for more information on
removing and replacing the RTC battery).
3. Wait approximately 5 minutes.
4. Replace the RTC battery and reassemble the tablet PC.
5. Connect AC power to the tablet PC. Do not reinsert any
battery packs at this time.
6. Turn on the tablet PC.
All passwords and all CMOS settings have been cleared.
1.3
Power Management
The tablet PC comes with power management features that
extend battery operating time and conserve power. The tablet PC
supports the following power management features:
■
Standby
■
Hibernation
■
Setting customization by the user
■
Hotkeys for setting the level of performance
■
Battery calibration
■
Lid switch standby/resume
■
Power/standby button
■
Advanced Configuration and Power Management (ACPM)
compliance