— 61 —
JP12
2
4
6
RX85+
NTX4
TX44
RX85-
NDTR4
DTR44
1
3
5
HEADER 3
×
2
JP10
2
4
6
TX85+
NRX4
RX44
TX85-
NDCD4
DCD44
1
3
5
HEADER 3
×
2
JP13
VCC
U9
W83877F
( I/O P
o
rt=250H )
RW
C
INDEX
MO
A
DSB
DSA
MOB
DIR
STEP
WD
WE
TRK0
WP
R
D
ATA
HEAD
DSKCHG
STB
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
ERR
AC
K
B
USY
PE
SLCT
SLIN
INIT
AFD
GND
GND
GND
GND
R
TSB
TXB
DTRB
RXB
CTSB
DSRB
DCDB
RIB
87
81
79
84
83
80
89
82
86
85
78
77
74
88
76
19
9
10
11
12
13
14
16
17
29
26
24
27
28
22
21
20
25
40
65
90
45
43
46
42
47
48
49
50
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
CS
D0
D1
D2
D3
D4
D5
D6
D7
MR
AEN
IOCHRD
Y
IOR-
IO
W
-
TC
IRQC
IRQD
IRQF
IRQE
DRQB
PDRQX
D
A
CKB
D
A
CKC
PDCIN
DRQA
D
A
CKA
XT
AL1
XT
AL2
IRQG
IDENE/IRQH
IRQB
IRQA
IRQIN
CS0/IRRX2
CS1/IR
TX2
R
TSA
TXA
DTRA
RXA
CTSA
DSRA
DCD
A
RIA
51
52
53
54
55
57
58
59
60
61
75
2
66
67
68
69
70
71
72
73
6
62
5
63
64
97
44
37
99
23
100
4
98
18
3
39
41
7
8
1
91
92
96
93
94
95
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
5,7,8,14,15,18,21 SA[0..11]
5,7,8,14,15,18,21 SD[0..7]
5,15 BRSTDR
V
5,8,15 AEN
5,8,14,15 IOCHRD
Y
5,7,8,14,15,18,21 IOR-
5,7,8,14,15,18,21 IO
W
-
5,8,15
TC
8,16 24MHZ
5,8,14,15 IRQ9
6,8,14,15 IRQ10
6,8,14,15 IRQ11
5,8,14,15 IRQ5
8 BIRRX
8 BIR
TX
R334
33-NI
R366
R
TS3
TX3
DTR3
RX3
CTS3
DSR3
DCD3
RI3
36
38
35
30
34
33
32
31
33-NI
15
56
VCC
VCC
U21B
34
2
4
6
8
RX232
RX422
RX485
R
TS4M
RX4
R
TS4J
R
TS4
R
TS4J
RX485
R
TS4M
TX4
RX422
TX85-
TX85+
RX85-
RX85+
RO
RE#
DE
DI
VCC
B
A
GND
RO
RE#
DE
DI
VCC
B
A
GND
VCC
VCC
VCC
R174
4.7K
U19
U18
LTC485
LTC485
1
2
3
4
1
2
3
4
8
7
6
5
8
7
6
5
1
3
5
7
HEADER 4
×
2
74HCT14
COM3
CN20
L51
BEAD
2
4
6
8
10
NDSR3
NR
TS3
NCTS3
MRI3
MDCD3
NRX3
NTX3
NDTR3
1
3
5
7
9
C229
180P
C241
180P
C249
180P
C228
180P
C273
180P
C248
180P
C219
C220
180P
180P
HEADER 5
×
2
JP11
JP15
2
4
6
MRI3
NRI3
MDCD3
NDCD3
MRI4
NRI4
MDCD4
NDCD4
1
3
5
2
4
6
1
3
5
F2
F1
HEADER 3
×
2
HEADER 3
×
2
COM4
CN21
L52
BEAD
2
4
6
8
10
NDSR4
NR
TS4
NCTS4
MRI4
MDCD4
NRX4
NTX4
NDTR4
1
3
5
7
9
C332
180P
C345
180P
C359
180P
C376
180P
C370
180P
C366
180P
C349
C322
180P
180P
HEADER 5
×
2
U4
VCC
VCC
VCC
VCC
V+
V-
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R5IN
SHDN#
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
T4IN
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
EN
VSS
R
TS4
TX4
DTR4
RX232
CTS4
DSR4
DCD4
RI4
C221
C204
11
13
17
2
3
1
28
9
4
27
23
18
25
12
14
15
16
7
6
20
21
8
5
26
22
19
24
10
NR
TS4
TX44
DTR44
RX44
NCTS4
NDSR4
DCD44
NRI4
C212
C203
0.1U
0.1U
0.1U
0.1U
ADM213E_SMD
U6
VCC
VCC
VCC
VCC
V+
V-
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R5IN
SHDN#
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
T4IN
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
EN
VSS
R
TS3
TX3
DTR3
RX3
CTS3
DSR3
DCD3
RI3
C259
C231
11
13
17
2
3
1
28
9
4
27
23
18
25
12
14
15
16
7
6
20
21
8
5
26
22
19
24
10
NR
TS3
NTX3
NDTR3
NRX3
NCTS3
NDSR3
NDCD3
NRI3
C251
C242
0.1U
0.1U
0.1U
0.1U
ADM213E_SMD
R
TS4
TX4
DTR4
RX4
CTS4
DSR4
DCD4
RI4
VCC
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
BC
DE
FG
H
I
J
K
A
BC
DE
FG
H
I
J
K
A
Description:
Board No.
Drawing No.
SBC8360
10/23
SBC8360
MULTI I/O 2 W83877TF
Содержание QT-7300 Series
Страница 1: ...SERVICE MANUAL ELECTRONIC CASH REGISTER without price QT 7300 EX 963 MAY 2001 ...
Страница 11: ... 9 11 Release the 9 screws of the Mother board Then remove the Mother board 1 2 3 4 5 6 7 8 9 ...
Страница 46: ... 44 All dots off All dots on A vertical line moves from right to left 1 2 3 4 5 6 7 8 1 1 1 1 1 1 1 1 ...
Страница 84: ... 82 10 DRAWER DL 2773 M Type ...
Страница 86: ... 84 DL 2915 M Type ...
Страница 88: ... 86 DL 3615 L Type ...
Страница 90: ... 88 11 DRAWING ...