T200/T200CS
1-15
1.8
Power Supply
The power supply supplies five kinds of voltages to the computer's system board. The
computer's power supply has one microprocessor and it operates at 500 Hz. It contains the
following functions:
1.
Determines if the AC adapter or battery is connected to the computer.
2.
Detects DC output and circuit malfunctions.
3.
Controls the LED icon and speaker.
4.
Turns the battery charging system on and off and detects a fully charged
battery.
5.
Determines if the power can be turned on and off.
6.
Provides more accurate detection of a low battery.
7.
Calculates the remaining battery capacity.
The power supply output rating is specified in Table 1-8.
Table 1-8 Power Supply Output Rating
DC
Regulation
Maximum
Use for
Name
voltage
tolerance
current
Ripple
(V)
(%)
(mA)
(mV)
System logic, FDD, HDD
VCC
+5
±5
1,720
100
RS-232C, Flash ROM
12V
+12
±5
120
240
RAM, CPU
B3V
+3.3
±5
1243
100
RS-232C
-9V
-9
15
15
150
Содержание T200
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Страница 90: ...3 40 T200 T200CS Head XX Sector XX Model name ...
Страница 153: ...T200 T200CS B 1 Appendix B Board Layout B 1 Upper System Board FOGSD2 Figure B 1 Upper System Board FOGSD2 Front ...
Страница 154: ...B 2 T200 T200CS Figure B 2 Upper System Board FOGSD2 Back ...
Страница 156: ...B 4 T200 T200CS B 2 Lower System Board FOGSU2 Figure B 3 Lower System Board FOGSU2 Front ...
Страница 157: ...T200 T200CS B 5 Figure B 4 Lower System Board FOGSU2 Back ...
Страница 170: ...T200 T200CS D 1 Appendix D USA Display Codes Table D 1 USA Display Codes ...