1 Hardware Overview
PORTÉGÉ X30W-J, dynabook V*/VZ*/VC* Series Maintenance Manual
(960-941) [CONFIDENTIAL]
1-17
1.6 Power
Supply
The power supply supplies many different voltages to the system board and performs the
following functions:
1.
Judges that the DC power supply (AC adapter) is connected to the computer.
2.
Detects DC output and circuit malfunctions.
3.
Controls the battery icon, and DC IN icon.
4.
Turns the battery charging system on and off and detects a fully charged battery.
5.
Turns the power supply on and off.
6.
Provides more accurate detection of a low battery.
7.
Calculates the remaining battery capacity.
8.
Controls the transmission of the status signal of the main battery.
Summary of Contents for PORTEGE X30W-J
Page 11: ...Chapter 1 Hardware Overview...
Page 39: ...Chapter 2 Troubleshooting Procedures...
Page 139: ...Chapter 4 Replacement Procedures...
Page 229: ...CONFIDENTIAL Appendices...