Zonge GDP-32 - Design

GDP-32
II
DESIGN
Section 16, Page 3 May 2002
Figure 16.1 (b) - GDP-32
II
Block Diagram 2
Battery
Charger
4A
Crystal Power
12V
Battery
Pack
Keyboard/mouse
VGA
COM B
Ext kb sw
LAN
3.3v 5v
IDE
ISA
LCD
5v reg
3A
1A
1A
Power Button
Floppy
COM A
LPT 1
Card-sized
CPU module
Network
Controller
Hard
Disk
PC104
Connecter
Flash
Disk
ASIC
+5v
DC/DC
+3.3v
DC/DC
LCD Contrast
+24v Adjustable
3.3v
LCD Contrast
voltage
Power on/off
Contrast Adjust
5v
Power Control/
Protection
Serial
Number
Annunciator
Temperature
Humidity
Battery Voltage
Keypad
Controller
PIC17C756
Keypad
12V Power
Relay
MB
Power
12V
5V
3.3v
Contrast
Voltage
5v
LCD
5V