Sharp Compet 17

NR 1 ØnD3 17 key 4 30 KEQ NL XC3 1 2 XC2
2 ØnD7 31 KMC § XC4 3 4 XC1
3 ØnD1 18 key 5 32 KMR § ØnD16 5 6 T
4 ØnD5 19 key 6 33 KMS § ØnD13 7 8 ØnB8
5 K 20 key 7 34 KMAS § ØnD12 9 10 Ø3
6 ØnD4 21 key 8 35 PMANUAL ØnD11 11 12 Ø2
7 Ø1 22 key 9 36 — — 13 14 Ø1
8 nPXI 23 KCLR 37 — ØnD1 15 16 ØnD1
9 key RC 24 KMD 38 IDLE ØB1 17 18 —
10 VDD 25 KCE 39 Ø3 ØB2 19 20 —
11 K 26 KD 40 P ØB4 21 22 —
12 ØB1 27 PTRIGGER 41 — ØB8 23 24 —
13 key 0 28 KDP 42 GND — 25 26 —
14 key 1 43 nDPØD GND 27 28 GND
15 key 2 29 KS 44 X VCL 29 30 VCL
16 key 3 45 — VDD 31 32 VDD
— 33 34 —
nPXI 35 36 —
— 37 38 ØnD4
— 39 40 ØnD3
— 41 42 ØnD5
— 43 44 ØnD7
NK ØnD3 1 2 ØnD7
ØnD1 3 4 ØnD5
K 5 6 ØnD4
Ø1 7 8 nPXI
KRC 9 10 VDD
K 11 12 ØB1
key 0 13 14 key 1
key 2 15 16 key 3
key 4 17 18 key 5
key 6 19 20 key 7
key 8 21 22 key 9
KCLR 23 24 KMD
KCE 25 26 KD
PTRIGGER 27 28 KDP
KS 29 30 KEQ
§ KMC 31 32 KMR §
§ KMS 33 34 KMAS §
PMANUAL 35 36 lamp *
lamp ÷ 37 38 IDLE
Ø3 39 40 P
— 41 42 GND
nDPØD 43 44 X
Display Board
(component side view)
NP01
NP06
1-1
5-5
5-4
5-3
5-2
5-1
1-2
7-1
Sharp Compet 17 Calculator
Section: Physical Layout and Connectors
Page: 17 Rendition: 2020 May 20
03
04
05
01
• Italicised expressions are connections with no signal
name in the schematic.
• ØnDx signals on the NK and NR connectors have a
diode between the connector and the actual signal.
See the Keyboard page.
• The NK and NR connector pins are numerically
correlated.
02
Digit 1
(LSD)
Digit 12
(MSD)
Logic Board
(component side view)
component side:
solder side:
NK43
NK44
NK01
NK02
6-1
6-4
6-7
6-2
6-5
6-8
6-3
6-6
6-9
2-1
2-3
4-1
3-1
7-2
7-3
7-4
2-2
3-2
A8
2-4
3-3
2-8
6-10
2-5
2-9
6-11
2-6
2-10
6-12
2-7
2-11
4-2
1-4
1-3
11
12
15
16
17
21
22
23
24
25
26
27
31
32
33
34
35
38
41
42
43
44
45
46
47
48
49
51
52
53
54
55
56
57
58
61
62
63
64
65
66
67
67
7-5
13
14
36
37
92
93
94
8
2
7-6
7-7
7-8
7-9
7-10
7-11
4-3
4-4
4-5
1-5
1-6
7-12
4-6
7-13
7-14
1-7
4-7
2-12
8
1
8
3
8
4
9
1
9
5
9
6
NL43
NL44
NL01
NL02
M-1
M-3
M-4
M-5
M-6
M-7
M-2
M-9
M-10
9
7
9
8
M-8
17
26
18
46
19
8
9
27
25
30
31
29
33
45
32
34
35
36
23
24
20
21
22
16
1
2
3
4
5
6
7
10
11
12
13
14
39
40
15
37
38
41
42
43
44
47
28