1 Hardware Overview
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Satellite A500D Maintenance Manual
1-14
1.4
Power Supply
The power supply unit provides constant voltage (19V) for the system board and performs the
following functions:
1.
Power input monitor
Checks whether the AC adapter (DC power supply) 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 White).
Battery indicator (in White or Amber).
DC-IN indicator (in White color)
5.
External interface
Performs communication through the I2C bus (via the internal EC/KBC).
Transfers the power supply operation mode.
Содержание Satellite Pro A500D series
Страница 1: ...Toshiba Personal Computer Satellite Maintenance Manual TOSHIBA CORPORATION CONFIDENTIAL ...
Страница 14: ...Chapter 1 Hardware Overview ...
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Страница 35: ...Chapter 2 Troubleshooting Procedures ...
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Страница 121: ...3 Tests and Diagnostics UK keyboard Satellite A500D Satellite A505D Satellite A507D Satellite Pro Series T D 16 ...
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Страница 142: ...3 Tests and Diagnostics Satellite A500D Satellite A505D Satellite A507D Satellite Pro Series T D ...
Страница 143: ...Chapter 4 Replacement Procedures ...
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Страница 252: ...C 22 CONFIDENTIAL SatelliteA500D ProA500D Maintenance Manual 11 USB20_P1_R 12 GND ...
Страница 262: ...Figure TI keyboard 4 Korean KO Keyboard Figure KO keyboard 5 United Kingdom UK Keyboard ...
Страница 263: ...Figure UK keyboard 6 US International UI Keyboard Figure UI keyboard 7 Hebrew HB Keyboard ...
Страница 264: ...Figure HB keyboard 8 Danish DM Keyboard Figure DM keyboard 9 Swiss SW Keyboard ...
Страница 265: ...Figure SW keyboard 10 Arabic ARE Keyboard Figure ARE keyboard 11 Czech CZ Keyboard ...
Страница 266: ...Figure CZ keyboard 12 Russian RU Keyboard Figure RU keyboard 13 Portuguese PO Keyboard ...
Страница 267: ...Figure PO keyboard 14 Slovakian SL Keyboard Figure SL keyboard 15 Italian IT Keyboard ...
Страница 268: ...Figure IT keyboard 16 French FR Keyboard Figure FR keyboard 17 German GR Keyboard ...
Страница 269: ...Figure GR keyboard 18 Greek GK Keyboard Figure GK keyboard 19 Hungarian HG Keyboard ...
Страница 270: ...Figure HG keyboard 20 Spanish SP Keyboard Figure SP keyboard 21 Turkish TR Keyboard ...
Страница 271: ...Figure TR d 22 Turkish F TF F Keyboard keyboar Figure TF F keyboard 23 Swedish SD Keyboard ...
Страница 272: ...Figure SD keyboard 24 Belgian BE Keyboard Figure BE keyboard 25 Yugoslavian YU Keyboard ...
Страница 273: ...Figure YU keyboard 26 Norwegian NW Keyboard Figure NW keyboard 27 Scandinavian ND Keyboard ...
Страница 274: ...Figure ND keyboard 28 Canadian Multinational AC Keyboard Figure AC keyboard 29 Canadian Bilingual CB Keyboard ...
Страница 275: ...Figure CB keyboard 30 Romania RO Keyboard Figure RO keyboard 31 Bulgaria BU Keyboard ...
Страница 276: ...Figure BU keyboard 32 Japanese JP Keyboard Figure JP eyboard k ...