Service manual
3) Pin description
Pin
No.
Symbol
Signal
name
In/
Out
Function
1 RES RESET I/O Reset input
2 NMi NMi In
Non-maskable interrupt input
for SSP interrupt input.
3 VSS NU In GND
4 D0 Nu In GND
5 D1 Nu In GND
6 D2 Nu In GND
7 D3 Nu In GND
8 D4 Nu In GND
9 D5 Nu In GND
10 D6 Nu In GND
11 D7 Nu In GND
12 D8 D0 I/O Data bus
13 D9 D1 I/O Data bus
14 D10 D2 I/O Data bus
15 D11 D3 I/O Data bus
16 D12 D4 I/O Data bus
17 D13 D5 I/O Data bus
18 D14 D6 I/O Data bus
19 D15 D7 I/O Data bus
20 VSS NU In GND
21 A0 A0 Out Address bus
22 A1 A1 Out Address bus
23 A2 A2 Out Address bus
24 A3 A3 Out Address bus
25 A4 A4 Out Address bus
26 A5 A5 Out Address bus
27 A6 A6 Out Address bus
28 A7 A7 Out Address bus
29 A8 A8 Out Address bus
30 A9 A9 Out Address bus
31 A10 A10 Out Address bus
32 A11 A11 Out Address bus
33 A12 A12 Out Address bus
34 A13 A13 Out Address bus
35 A14 A14 Out Address bus
36 A15 A15 Out Address bus
37 VSS NU In GND
38 A16 A16 Out Address bus
39 A17 A17 Out Address bus
40 A18 A18 Out Address bus
41 A19 A19 Out Address bus
42 A20 A20 Out Address bus
43 A21 A21 Out Address bus
44 A22 A22 Out Address bus
45 A23 A23 Out Address bus
46 VSS NU In GND
47 WAIT WAIT In Wait signal
48 BACK BACK Out
Bus control request
acknowledge
49 BREQ BREQ In Bus control request
50 P33 DOPS In Drawer open signal
51 P34 DR0 Out Option drawer open signal
52 P35 DR1 Out
Remote drawer No.1 open
signal
Pin
No.
Symbol
Signal
name
In/
Out
Function
53 P36 DR2 Out
Remote drawer No.2 open
signal (NU)
54 P37 DR3 Out
Remote drawer No.3 open
signal (NU): GND
55 VCC VCC In +5V
56 P40 IFV In
Slip printer (M-240) interface
connect signal (NU)
57 TMCi PTMG In Printer (DP-730) timing signal
58 P42 TOF In
Slip printer (M-240) TOF
sensor signal (NU)
59 P43 BOF In
Slip printer (M-240) BOF
sensor signal (NU)
60 FTi1 PRST In Printer (DP-730) reset signal
61 P45 NEJ In Near end sensor journal side
62 FTi2 SHEN In
CKDC Interface shift enable
signal
63 P47 NER In Near end sensor receipt side
64 VSS VSS In GND
65 P50/FTCA1 TRGI Out Dot pulse adjust signal
66 P51 NU Out NC
67 P52 NU Out NC
68 P53 NU In GND
69 P54 NU Out NC
70 FMRS NU In NC
71 P56 NU Out NC
72 P57/STOP STOP Out System reset output. Normally
73 P60/ER ERS/ER Out
SIO control signal (Equipment
ready) (NU)
74 P61/DR DRS/DR In
SIO control signal
(Data set ready) (NU)
75 P62/CS CSS/CS In
SIO control signal
(Clear to send) (NU)
76 P63/CD CDS/CD In
SIO control signal
(Carrier detect) (NU)
77 P64/RR RRS/RR Out
SIO control signal
(Ready to receive) (NU)
78 P65/RS RSS/RS Out
SIO control signal
(Request to send) (NU)
79 P66 RCO In Remote keyboard input signal
80 P67 HP In Printer home position signal
81 VSS NU In GND
82 AVSS NU In GND
83 AN0 VPJ In Validation sensor journal
84 AN1 VPR In Validation sensor receipt (NU)
85 AN3 VPTEST In +24V test input
86 P73 VPPS In Validation sense signal (NU)
87 AVCC AVCC In +5V
88 VCC VCC In +5V
89 IRQ0 IRQ0 In Interrupt signal 0
90 IRQ1 IRQ1 In Interrupt signal 1 (RS-232C)
91 SCK1 UASCK In I/R control signal (Shift clock)
92 SCK2 SCK2 In
CKDC Interface sync shift
clock
93 RXD1 /UARX In
I/R control signal
(Receive data)
94 TXD1 /UATX Out
I/R control signal
(Transmit data)
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