1.7 Power Supply

1 Hardware Overview

1.7Power Supply

The power supply supplies twenty-five different voltages to the system board.

The power supply microcontroller has the following functions.

1.Judges if 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.

Table 1-7 lists the power supply output specifications.

Table 1-7 Power supply output rating (1/2)

Name

Voltage

Power supplied Yes/No

Use

 

 

 

[V]

Power OFF

Power OFF

No

 

 

 

 

Suspend mode

Boot mode

Battery

 

 

 

 

 

 

 

PPV

1.308 –

No

No

No

CPU

0.748

 

 

 

 

 

PTV

1.07

No

No

No

CPU, MCH, ICH4-M

 

 

 

 

 

 

PGV

1.20

No

No

No

GPU

 

 

 

 

 

 

1R8-P1V

1.8

No

No

No

CPU, MCH, ICH4-M

 

 

 

 

 

 

1R2-P1V

1.2

No

No

No

MCH

 

 

 

 

 

 

1R25-B1V

1.25

Yes

No

No

DDR-SDRAM Termination

 

 

 

 

 

 

1R5-P1V

1.5

No

No

No

MCH, ICH4-M, GPU

 

 

 

 

 

 

1R5-S1V

1.5

Yes

Yes

No

ICH4-M

 

 

 

 

 

 

2R5-P2V

2.5

No

No

No

GPU, SDRAM(GFX), SVP,

LVDS

 

 

 

 

 

 

 

 

 

 

 

2R5-B2V

2.5

Yes

No

No

MCH, DDR-SDRAM

 

 

 

 

 

 

FM-E3V

3.3

No

No

No

Media Bridge

 

 

 

 

 

 

BT-P3V

3.3

No

No

No

Bluetooth

 

 

 

 

 

 

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QOSMIO F10 Maintenance Manual (960-498)

Page 36
Image 36
Toshiba 960-498 manual Power Supply Hardware Overview, Power supply output rating 1/2, Name Voltage