84
Date:
April 10, 1996
Sheet
9
o
f
9
Size
Document Number
REV
B
PRINTER/DISPLAY DRIVERS
D
Title
SCHEMATIC, MAIN BOARD ISE/PH
(404)587-4040
30077
Roswell, Georgia
33 Mansell Court
AVL Scientific Corp.
13
11
1 2
U30D
1489
OPEN1
OPEN2
OPEN3
OPEN4
OPEN5
DATA/INST-
DISPEN
ADSEL0
ADSEL1
ADSEL2
ADRUN
ADCE-
ADHBEN-
ADLBEN-
DISPR/W-
SSEN
SER
14
SRCLK
11
SRCLR
10
RCLK
12
RCLR
13
QA
15
QB
1
QC
2
QD
3
QE
4
QF
5
QG
6
QH
7
QH’
9
U36
74HC594
SER
14
SRCLK
11
SRCLR
10
RCLK
12
RCLR
13
QA
15
QB
1
QC
2
QD
3
QE
4
QF
5
QG
6
QH
7
QH’
9
U37
74HC594
SSEN
VCC
VCC
ADCTRL
MOSI
SCK
RESET-
VASTR
ADOSTR
VACTRL
PRCTRL
PRSTR
DISTR
VCC
10
OUT1
18
OUT2
17
OUT3
16
OUT4
15
OUT5
14
OUT6
13
OUT7
12
OUTM
11
GND
9
IN1
1
IN2
2
IN3
3
IN4
4
IN5
5
IN6
6
IN7
7
INM
8
U33
LB1256
SER
14
SRCLK
11
SRCLR
10
RCLK
12
RCLR
13
QA
15
QB
1
QC
2
QD
3
QE
4
QF
5
QG
6
QH
7
QH’
9
U34
74HC594
SER
14
SRCLK
11
SRCLR
10
RCLK
12
G
13
QA
15
QB
1
QC
2
QD
3
QE
4
QF
5
QG
6
QH
7
QH’
9
U35
74HC595
DD0
DD1
DD2
DD3
DD4
DD5
DD[0..7]
VCC
VCC
PGND
PGND
PRINTVCC
V+
1
2
R88
4.7K
DOT1-
DOT2-
DOT3-
DOT4-
DOT5-
DOT6-
DOT7-
MOTOR-
DD[0..7]
DISPBF
VCC
"CONTRAST"
NOT
STUFFED
1
3
2
R89
5KPOT
MISO
CONTRAST
SAMPLE
"SS"
1
2
BZ1
BUZZER
1
2
R90
1K
Q6
2N3904
1
TP15
UT35-017
1
2
R99
5.1K
1
2
R87
330
SER
10
A
11
B
12
C
13
D
14
E
3
F
4
G
5
H
6
CLK
2
INH
15
SH/LD
1
QH
9
QH
7
U38
74HC165
1
2
R91
10K
BUZZER
DD6
DD7
DSPDATA
ADDATA
ADISTR
ADDAT[0..7]
SAMPLE
ADDAT[0..7]
ADDAT0
ADDAT1
ADDAT2
ADDAT3
ADDAT4
ADDAT5
ADDAT6
ADDAT7
NOT STUFFED FOR 9110
Q4
2N3904
Q5
2N3906
1
2
R97
10K
1
2
R98
10K
1
2
R102
10K
1
2
R96
1K
+5VA
+5VA
"SS ADJ."
3
2
1
8
4
U39A
LF353
1
2
R92
1K
1
3
2
R93
5KPOT
1
2
R94
1K
+5VA
+8V
-8V
Q3
2N3904
1
2
R95
100
mb9.sch
SAMPLELED-
SBC PCB - PRINTER/ DISPLAY DRIVERS - 9120, 30, 40