2
D14
D15
D16
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
1K R1
1 2 3
0
390
390
390
390
390
390
390
390
390
390
390
390
SW PUSHBUTTON
f
LED CONNECTOR
P2.7/A15 P2.6/A14 P2.5/A13 P2.4/A12 P2.3/A11 P2.2/A10 P2.1/A9 P2.0/A8
28 27 26 25 24 23 22 21
XTAL2 XTAL1
Y1 C2
C3 AT89C51
33p
33p
LED CONNECTOR
+5V LED1D LED1C LED1B LED1A
P2.7 P2.6 P2.5 P2.4 P2.3 P2.2 P2.1 P2.0
9 8 7 6 5 4 3 2 1
+5V
6 2 1 7
J13 1 2 3
6 5 5 4 4 3
RBI BI/RBO LT
A B C D E F G
JUMPER
13 12 11 10 9 15 14
a1 b1 c1 d1 e1 f1 g1
LED2D LED2C LED2B LED2A
1 2 3
6 5 4
1
2 SW17 7
1
2 SW18 8
1 2
1 2
74LS247
AC CON
C1+
VCC
3 4
C1C2+
V+
2
C8
5
C2-
V-
6
C11
10u/16V
0
0 4
3
3
C6 D20 PWRLED
0
A
C9 10u/16V
10u/16V
Title
Date: 5
D22
0.1u
10u/16V
Size A4
0
C4 C5
1N4007
16
1 2 D21
+5V
1
C10
+5V
R37 390 3300u/16V
5 9 4 8 3 7 2 6 1 13 8 14 7
10u/16V J21 5V OUT
2 SW16 6
GND OUT
1
J20
R1IN R2IN T1OUT T2OUT
C7
GND
2 SW15 5
1 2
T2IN T1IN R1OUT R2OUT
15
1
1 2
10 11 12 9
a2 b2 c2 d2 e2 f2 g2
D19
1N4007
2 SW14 4
P3.1 P3.0
J19 5V OUT
2 SW13 3
1
+5V J18 GND OUT
1
KEY CONNECTOR
A
2 SW12 2
0
D18
3300u/16V
J17
1
1N4007
SW10
SW9
SW8
SW6
SW5
SW4
SW3
SW7
J16
MAX232
13 12 11 10 9 15 14
B
1N4007
0
U5
RBI BI/RBO LT
A B C D E F G
U4 LM7805/TO 1 Vi Vo 2
0
1
5 4 3
0
RST
2 SW11 1
D3 D2 D1 D0
JUMPER
P1 CONNECTOR DB9
+5V
6 2 1 7
J14
+5V
74LS247
0
RP4 10K
D3 D2 D1 D0
16
CON2 J12 1 2
+5V U3
16
U2
VCC
31 30 29
J9
GND
EA/VPP ALE/PROG PSEN
f g a b . c d e
C
SW DIP-8
8
P3.0/RXD P3.1/TXD P3.2/INT0 P3.3/INT1 P3.4/T0 P3.5/T1 P3.6/WR P3.7/RD
a2 b2 c2 d2 e2 f2 g2 dot2
J8
VCC
10 11 12 13 14 15 16 17
c
d
1 2 4 5 6 7 9 10
f g a b . c d e 1 2 4 5 6 7 9 10 R21 R22 R23 R24 R25 R26 R27 R28 390 390 390 390 390 390 390 390
P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7
SW2 a1 b1 c1 d1 e1 f1 g1 dot1
1 f1 2 g1 3 a1 4 b1 5dot1 6 c1 7 d1 8 e1
LED CONNECTOR
40 VCC
39 38 37 36 35 34 33 32
e
GND
1 2 3 4 5 6 7 8
P0.0/AD0 P0.1/AD1 P0.2/AD2 P0.3/AD3 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7
LED1D LED1C LED1B LED1A LED2D LED2C LED2B LED2A
+5V
18 CRYSTAL - 12MHz 19
B
P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7
1 2 3 4 5 6 7 8
GND
J15
PUSHBUTTON CON
D
b
g
8
P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 P3.6 P3.7 10K
1 2 3 4 5 6 7 8
RP2 1 2 3 4 5 6 7 8 9
RST
+5V 1 2 3 4 5 6 7 8 9
U1
9
1 2 3 4 5 6 7 8
RP3
P2 - CONNECTOR
P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 P3.6 P3.7
1 2 3 4 5 6 7 8 9
P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7
P3 - CONNECTOR
P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7
+5V
RP1
J11 1 2 3 4 5 6 7 8
+5V
GND
J10
+5V
20
1 2 3 4 5 6 7 8
10K
P0 - CONNECTOR
P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7
10K
P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7
P1 - CONNECTOR
C
LED CONNECTOR
J7 1 2 3 4 5 6 7 8
f
c
d
J5
J4 LED CONNECTOR
J6
a
R29 R30 R31 R32 R33 R34 R35 R36
e J3
0
0
390 390 390 390 390 390 390 390
1 2 3 4 5 6 7 8
1N4148
10K
Q2 2
b
g
1 3
1 2 3 4 5 6 7 8
D17 R20
a
1K R2
1 2 3
1 f2 2 g2 3 a2 4 b2 5dot2 6 c2 7 d2 8 e2
390
390
390
390
RST
Q1 2
SW1
D
1 3
8
D13
CA2
D12
3
D11
+5V
7SEG_2
D10
7SEG CON
D9
8
D8
J2
CA2
D7
7SEG_1
D6
+5V
PNP ECB
D5
LED
100
D4
LED
C1
D3
LED
10u
D2
LED
R3
D1
J1
+5V PNP ECB
7SEG CON
+5V
1
+5V
CA1
3
+5V
3
4
+5V
CA1
5
2
MINI TEST BOARD Document Number
Rev 1
CDT04.1 Thursday, January 11, 2007
Sheet
1 1
of
1