Major Component - Casio CE-3700 Service Manual

5. MAJOR COMPONENT

CPU
Ram
Printer Model
MCBF
Drawer USA
Canada
UK
Other Countries
Germany
CPU Pin Description
Pin Port Name In/
No. No. Out
1 94 FIP6 O
2 93 FIP5 O
3 92 FIP4 O
4 91 FIP3 O
5 90 FIP2 O
6 81 FIP1 O
7 80 FIP0 O
8
9 27 SCK0 I/O
10 26 SO1 I/O
11 25 SI0 I/O
12 24 BUSY I/O
13 23 STB I/O
14 22 SCK1 I/O
15 21 SO1 I/O
16 20 SI1 I/O
17
18 74 O
19 73 O
20
21 17 ANI7 I
22 16 ANI6 I
23 15 ANI5 I
24 14 ANI4 I
25 13 ANI3 I
26 12 ANI2 I
27 11 ANI1 I
28 10 ANI0 I
29
30
31
32
33
34
35
36 37 O
37 36 BUZ O
38 35 PCL O
39 34 TI2 O
40 33 TI1 O
UPD78044AGF080-3B9
LC36256PLL
256K bit
CR812A-009-15-001A
2,000,000 lines
DL-2416
DL-2351
DL-2751
DL-2350
DL-2750
DL-2752
Description
Display Digit Signal (Dg7)
Display Digit Signal (Dg6)
Display Digit Signal (Dg5)
Display Digit Signal (Dg4)
Display Digit Signal (Dg3)
Display Digit Signal (Dg2)
Display Digit Signal (Dg1)
Power (VDD)
Data 7
Data 6
Data 5
Data 4
Data 3
Data 2
Data 1
Data 0
Reset Signal
CE(Ram Chip Enable)
R/W(Ram Write Enable)
Analog electric potential of AD
converter (Gnd)
Key Input Signal (KI7)
Key Input Signal (KI6)
Key Input Signal (KI5)
Key Input Signal (KI4)
Key Input Signal (KI3)
Key Input Signal (KI2)
Key Input Signal (KI1)
Key Input Signal (KI0)
Analog electric power supply of
AD converter (Vcc)
Reference voltage input of AD
converter (Gnd)
Clock Terminal
Clock Terminal
Analog electric potential of AD
converter(Gnd)
System Clock 4.19MHz
System Clock 4.19MHz
EEPROM CE
Buzzer
Decoder CE
DW1&2
Journal Common Signal
— 6 —
SRam
D-15TC-A55SP-1*
D-15TC-A54SP-1*
D-15TC-A84SP-1*
D-15TC-A54P-1*
D-15TC-A84P-1*
D-15BC-A84S-1*
Pin Port Name In/
No. No. Out
41 32 TO2 O
42 31 TO1 O
43 30 TO0 O
44 3 INTP3 I
45 2 INTP2 I
46 1 INTP1 I
47 0 INTP0 I
48
49 70 O
50 71 O
51 72 O
52
53 127 FIP33 O
54 126 FIP32 O
55 125 FIP31 O
56 124 FIP30 O
57 123 FIP29 O
58 122 FIP28 O
59 121 FIP27 O
60 120 FIP26 O
61 117 FIP25 O
62 116 FIP24 O
63 115 FIP23 O
64 114 FIP22 O
65 113 FIP21 O
66 112 FIP20 O
67 111 FIP19 O
68 110 FIP18 O
69 107 FIP17 O
70 106 FIP16 O
71
72 105 FIP15 O
73 104 FIP14 O
74 103 FIP13 O
75 102 FIP12 O
76 101 FIP11 O
77 100 FIP10 O
78 97 FIP9 O
79 96 FIP8 O
80 95 FIP7 O
Description
Receipt Common Signal
Auto cutter
Stamp
Drawer sensor
Key scan timing plus
Power Down
Printer
Gnd for Vpp (IC)
Address decoder (A12/D0)
A13/Decod1
A14/Decod1
Power (VDD)
Printer Head (HD8)
Printer Head (HD7)
Printer Head (HD6)
Printer Head (HD5)
Printer Head (HD4)
Printer Head (HD3)
Printer Head (HD2)
Printer Head (HD1)
Printer Head (HD10)
Printer Head (HD9)
Printer J-feed
Printer R-feed
Printer Motor
Key Common Signal (KC9)
Display Digit Signal / Key
Common Signal (SGdb/KC8)
Display Digit Signal / Key
Common Signal (SGtr/KC7)
Display Digit Signal / Key
Common Signal (SGg/KC6)
Display Digit Signal / Key
Common Signal (SGf/KC5)
Pull Down electric potential for
Fip (VN)
Display Digit Signal / Key
Common Signal (SGe/KC4)
Display Digit Signal / Key
Common Signal (SGd/KC3)
Display Digit Signal / Key
Common Signal (SGc/KC2)
Display Digit Signal / Key
Common Signal (SGb/KC1)
Display Digit Signal / Key
Common Signal (SGa/KC0)
Key Scan Timing Plus
Display Digit Signal (Dg10)
Display Digit Signal (Dg9)
Display Digit Signal (Dg8)