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Functional Description
CPB902
C P B 9 0 2 U s e r M a n u a l
23
© 2 0 0 8 F a s t w e l v . 1 . 5 b E
Figure 4.2:
Top Side: Connectors and Main Components Layout
P1
P2
P3
P5
J3
J4
1
J15
1
P7
SW1
J13
1
2
U1
J1
1
2
U18
P4
C0 D0
BZ1
J14
B1 A1
U6
U4
J17
1
2
J16
U26
J18
2
1
U52
L15
L16
J19
1
2
U25
BT1
U31
U9
Y3
U54
U53
S1
U7
Y2
C
21
2
C
2
20
+
+
J12
J8
2
2
1
1
J10
J6
2
2
1
1
J5
1
J7
1
J9
1
J11
1
1
J20
CPU
Ethernet
PS/2 Mouse, KBD
USB
COM1
COM2
VGA
FDD/LPT
UIDE
Reset
Button
D20
D11
D10
D9
Reset
Selector
P
C
/1
0
4
Speaker
Optoisolated
Reset/IRQ
LCD and
Matrix Keypad
S
D
R
A
M
LCD
Power
R154
TFT
FBUS
(J22)
COM3-COM6 Terminators
in RS422/485 Modes
COM5
COM6
COM3
COM4
+12V
GND
GND
+5V
Video
Battery
J21
1
1
2
LVDS
1
2
1
1
8
Figure 4.3:
Bottom Side: Connectors and Main Components Layout
U40
U44
F1
U32
U36
U21
+
+
+
+
D19
U8
L21
L22
+
+
U27
U30
Y4
U14
U20
+
C7
+
C5
+
C21
U49
U17
U19
U2
U51
U5
U3
U48
J2
Compact Flash
SDRAM