![Toshiba SATELLITE M40 Series Скачать руководство пользователя страница 39](http://html.mh-extra.com/html/toshiba/satellite-m40-series/satellite-m40-series_maintenance-manual_425881039.webp)
1.9 Power Supply
1 Hardware Overview
Satellite M40/M45 TECRA A4 dynabook Vx/4 Maintenance Manual
24
1.9 Power Supply
The power supply unit provides many different voltages for the system board and performs the following
functions:
1.
Power input monitor
?
Checks whether the DC power supply (AC adapter) is connected to the computer.
?
Checks whether the battery pack is connected to the computer.
?
Monitors the DC power supply input voltage (AC Adapter output voltage).
2.
Power supply's internal control
?
Turns on and off the battery pack charging power supply.
?
Issues a charging current instruction to the PWM control IC of the battery pack charging power
supply.
?
Controls the supply of DC power supply input (AC Adapter output) to the power supply unit.
?
Controls the supply of power to the system block (load/logic circuit side).
?
Controls forced shutdown if the power supply malfunctions.
3.
Logic circuit control
?
Instructs the gate array to enable/disable tuning the power on.
?
Controls power-on/off operation.
4.
Status display
?
Turns on the Power LED (in Green or AMBER).
?
Battery indicator (in Green or AMBER).
5.
External interface
?
Performs communication through the I2C bus (via the internal EC/KBC).
?
Transfers the power supply operation mode.
6.
Output monitor
?
Monitors the voltage output to the system block (load/logic circuit side).
?
Monitors the voltage, over voltage, input/output current of the battery pack.
?
Monitors the internal temperature of the battery pack.
?
Monitors the supply voltage from the AC adapter.
Содержание SATELLITE M40 Series
Страница 2: ...ii S No ...
Страница 12: ...Chapter 1 Hardware Overview ...
Страница 13: ...1 Hardware Overview ii Satellite M40 M45 TECRA A4 dynabook Vx 4 Maintenance Manual ...
Страница 42: ...2 Troubleshooting 2 i Satellite M40 M45 TECRA A4 dynabook Vx 4 Maintenance Manual 2 Chapter 2 Troubleshooting ...
Страница 71: ...Chapter 3 Diagnostic Programs ...
Страница 74: ......
Страница 142: ...Chapter 4 Replacement Procedures 4 1 ...
Страница 143: ...4 Replacement Procedures 4 ii Satellite M40 M45 TECRA A4 dynabook Vx 4 Maintenance Manual ...
Страница 150: ...4 Replacement Procedures 4 1 General 4 2 Satellite M40 M45 TECRA A4 dynabook Vx 4 Maintenance Manual ...
Страница 213: ...6000 1 Appendices ...
Страница 214: ...Appendices App ii Satellite M40 M45 TECRA A4 dynabook VX 4 Maintenance Manual ...
Страница 217: ...Appendices Satellite M40 M45 TECRA A4 dynabooK VX 4 Maintenance Manual App v ...
Страница 235: ...Apx C Pin Assignments Appendices Satellite M40 M45 TECRA A4 dynabook VX 4 Maintenance Manual C 9 17 DVISC I O 18 NC ...