
RDWR
U16B
74HCT132
4
5
6
LCDE
AD0
(p4A2)
A6
AD2
n/c
(p7B2)
R68
2.2k
R73
390
+5V
n/c
RSLCD
C
(p2A4)
AD7
*RSLCD
ENAB
AD[0..7]
C77
10n
U16C
74HCT132
9
10
8
B
*OPR
n/c
(p3B5)
AD4
EG2ON
*RDWR
LTXA
A[0..7]
(p3A2)
*Note
AD3
AD0
(p1B5)
(p2A4)
+5V
+5V
U16A
74HCT132
1
2
3
7
14
R84
3.3k
C74
47n
(p2A4)
AD6
OLEB
*OL
U5D
74HCT132
12
13
11
(p5B3)
+5V
T/*R
FANHI
C
*Note 1: C71 not installed in PCB V2
+5V
D19
BZX84C3V9
AD6
GND
ATTLED
C70
47n
C75
47n
E
CA
*W
LC
D
E
(p2A4)
*RD
LEDOFF
U14
74HCT573
2
3
4
5
6
7
8
9
11
1
19
18
17
16
15
14
13
12
10
20
D1
D2
D3
D4
D5
D6
D7
D8
C
OC
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
GN
D
VC
C
AD6
*OL
AD7
(p4C2)
JP6
MTA100-4
ON/OFF
1
2
3
4
Top View
*WR
AD1
R76
10k
K1
R69
470
C
KEY OUT
R77
1k
U13
74HCT238
1
2
3
6
4
5
15
14
13
12
11
10
9
7
8
16
A
B
C
G1
G2A
G2B
Y 0
Y 1
Y 2
Y 3
Y 4
Y 5
Y 6
Y 7
GN
D
VC
C
A
R74
390
(p2A4)
*OLE
FANON
AD0
OLEZ
A[0..7]
A3
A0
n/c
R70
10k
AD4
*ON
LEDOPR
C68
47n
Q8
BCX19
(p5C2)
BAS16
STST
R82
10k
(p4C2)
(p4A2)
RSLCD
BAR43S
+5V
*ONBTN
+5V
AD5
AD2
R80
10k
U16D
74HCT132
12
13
11
+5V
A2
LEDON
BZX84C4V7
Q9
BCX19
AD5
(p2A4)
*NEXT
(p5C2)
LEDATT
LTXC
C69
47n
BUF0E
(p5B3)
AD3
PWRON
AD5
Top View
C71
47n
(p4D2)
(p5B3)
(p2A4)
A7
AD2
U5C
74HCT132
9
10
8
R78
180
Top View
U15
74HCT573
2
3
4
5
6
7
8
9
11
1
19
18
17
16
15
14
13
12
10
20
D1
D2
D3
D4
D5
D6
D7
D8
C
OC
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
GN
D
VC
C
ONLED
A1
*LCDE
(p4B2)
AD1
*OLEB
BUF1E
(p3C4,p4C4)
ATN
OPRLED
GND
C76
47n
(p5C2)
(p5B5)
LTXA
R67
10k
*BY PASS
(p5A5)
AD1
A5
D23
BAR43S
AD[0..7]
AD3
A
(p7B2)
LCDE
(p4C2)
R81
10k
*Note 2: C80 deleted
WLCDE
BUF1E
BCX17
AD4
BUF0E
WLCDE
OFFLED
K2
*PREV
BCX19
(p5C2)
(p2A4)
LTXC
A4
JP8
MTA100-8
KBDLED
1
2
3
4
5
6
7
8
AD7
JP7
DIP14
VFD
1
3
5
7
9
11
13
2
4
6
8
10
12
14
R79
180
CONTROL 6/9