1-16
T2150 Series
1.9
Power Supply
The power supply provides five kinds of voltages to the T2150 series system board. The
T2150 series power supply has one microprocessor and it operates at 500 KHz. It contains
the following functions:
1.
Determines if the AC cord or battery is connected to the computer.
2.
Detects DC output and circuit malfunctions.
3.
Controls the LED indicator 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
1,400
100
Display
PCMCIA, Flash ROM
P12V
+12
±5
100
240
CPU, GA
B3V
+3.3
±5
1,100
60
VRAM, GA, RAM
B5V
+4.7
±5
650
100
Содержание T2150 series
Страница 22: ...T2150 Series 2 3 Figure 2 1 Troubleshooting flowchart 1 2 ...
Страница 135: ...4 20 T2150 Series Figure 4 17 Removing the top cover display assembly ...
Страница 162: ...T2150 Series B 1 Appendix B Board Layout B 1 FHVSY System Board Figure B 1 FHVSY system board front ...
Страница 163: ...B 2 T2150 Series Figure B 2 FHVSY system board back ...
Страница 164: ...T2150 Series B 3 B 2 FHWSD Board Figure B 3 FHWSD board ...
Страница 181: ...C 14 T2150 Series ...
Страница 182: ...T2150 Series D 1 Appendix D USA Display Codes Table D 1 USA display codes ...
Страница 190: ...F 2 T2150 Series F 3 German GR Keyboard Figure F 3 GR keyboard F 4 French FR Keyboard Figure F 4 FR keyboard ...
Страница 191: ...T2150 Series F 3 F 5 Spanish SP Keyboard Figure F 5 SP keyboard F 6 Italian IT Keyboard Figure F 6 IT keyboard ...