UBI EasyCoder 601 XP – Service Manual Ed. 1
110
Chapter 15 CPU Board
15.8 Schematics,
cont'd.
1-971699-50 CPU Board; Stepper Motor Drivers
VCC
IOEN
GND
VCC
V42
IOCS4CWR
V42
IOD0
IOD1
IOD2
IOD3
IOD4
IOD5
IOD6
IOD7
IOEN
VCC
IOEN
IOCS4BWR
V42
IOD0
IOD1
IOD2
IOD3
IOD4
IOD5
IOD6
IOD7
P24_EN
IOEN
IOEN
IOEN
IN1
IN2
OUT1
OUT2
VS
GND
BOOT1
BOOT2
VREF
ENABLE
SENSE
IN1
IN2
OUT1
OUT2
VS
GND
BOOT1
BOOT2
VREF
ENABLE
SENSE
GND
GND
GND
GND
OC
CLK
1D
2D
3D
4D
5D
6D
7D
8D
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
GND
GND
VCC
VCC
GND
GND
GND
IN1
IN2
IN3
IN4
REF1
REF2
P.E
SYNC
R/C
OSC
VS1
VS2
OUT1
OUT2
OUT3
OUT4
GND
VCC
IN1
IN2
IN3
IN4
REF1
REF2
P.E
SYNC
R/C
OSC
VS1
VS2
OUT1
OUT2
OUT3
OUT4
GND
VCC
VCC
GND
GND
OC
CLK
1D
2D
3D
4D
5D
6D
7D
8D
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
IN1
IN2
OUT1
OUT2
VS
GND
BOOT1
BOOT2
VREF
ENABLE
SENSE
IN1
IN2
OUT1
OUT2
VS
GND
BOOT1
BOOT2
VREF
ENABLE
SENSE
GND
GND
GND
VCC
GND
1
2
3
4
5
6
7
8
5
7
3
1
2
6
4
8
9
11
10
5
7
3
1
2
6
4
8
9
11
10
1
11
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
5
6
7
8
18
19
4
3
12
12
17
16
15
14
13
5
6
7
8
18
19
4
3
12
12
17
16
15
14
13
1
11
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
5
7
3
1
2
6
4
8
9
11
10
5
7
3
1
2
6
4
8
9
11
10
1
2
3
4
5
6
7
8
‹
‹
P421
L6203
IC424
L6203
IC425
C424
C425
C431
C430
C432
C433
R445
C437
R444
C436
PWR
74HC574
IC421
R430
R431
R432
R433
R437
R436
R435
R434
R457
R456
R455
R454
R461
R460
R459
R458
C438
C439
C440
L6506D
IC427
R441
C421
L6506D
IC426
R440
C420
R453
R452
R451
R450
R446
R447
R448
R449
R470
R471
R472
R473
R477
R476
R475
R474
74HC574
IC420
L6203
IC422
L6203
IC423
C422
C423
C427
C426
C428
C429
R443
C435
R442
C434
P420
PIO
IOBUS