Circuit Diagram (Main Pcb 13/15) [Centronics I/F] - Tally Dascom 7010 Series Maintenance Manual

1 2
6 OBDIR
D
6 xACKNLG
6 BUSY
6 PE
6 SLCT
6 xFAULT
DATA[7:0]
6 DATA[7:0]
6 xSTROBE
6 xATFD-XT
6 xPRIME
6 xSLCT-IN
6 PLH
C
B
V5R0
U22B
7
VCC
18
VCC
31
VCC_CABLE
42
VCC_CABLE
C104
10u/10
10
GND
15
GND
39
GND
34
GND
74LVX161284
A
1 2

Circuit Diagram (Main PCB 13/15) [Centronics I/F]

3 4
U22A
V3R3
1
HD
2
A9
3
A10
4
A11
5
A12
6
A13
8
DATA0
A1
9
DATA1
A2
11
DATA2
A3
DATA3 12
A4
DATA4 13
A5
DATA5 14
A6
DATA6 16
A7
DATA7 17
A8
19
PLHIN
R170 100 T326
20
A14
21
A15
22
A16
23
A17
24
HLH HLHIN
74LVX161284
V3R3
C105
0.1u/16
3 4
5 6
48
DIR
47
Y9
46
Y10
45
Y11
44
Y12
43
Y13
41
B1
40
B2
38
B3
37
B4
36
B5
35
B6
33
B7
32
B8
30
PLH
29
C14
28
C15
27
C16
26
C17
25
V3R3
R171
3.3k
C102
*12p/50 V3R3
U23
2 4
2,6,8 -GRESET
*74AHCT1G125
R174 3.3k
6 IETYP0
R175 3.3k
6 IETYP1
NOT CONNECTED
IETYP0 HIGH
IETYP1 HIGH
5
6
6-16
7
C101
12p/50
J17
T318
xSTROBE
1
2
T319
DAT0
3
4
T320
DAT1
5
6
T321
DAT2
7
8
T322
DAT3
9
10
T323
DAT4
11
12
T324
DAT5
13
14
T325
DAT6
15
16
T327 DAT7
17
18
T328 xACKNLG
19
20
T329 BUSY
21
22
T330 PE
23
24
T331 SLCT
25
T332 xPRIME
26
T333 xATFD-XT
27
T334 xFAULT
28
29
30
31
32
V5R0
33
34
35
T335
xSLCT-IN
36
37
T336
xRESET
38
39
40
C103
*0.1u/16
PS-40PE-D4T1
IEEE1284
V3R3
R172 R173
22k 22k
T337
T338
NETWORK BD CENTRO CN
LOW HIGH
HIGH LOW
Title
MAIN PCB - CENTRONICS I/F
Size Number Revision
JN66701-0
A4
Date: Sheet of
File: Drawn By:
7
8
D
C
B
A
(12/15)
A
8