Service manual
R-8000G
27
28 P74 OUT Turminal not used.
29 P73 OUT
Jet motor driving signal.
To turn on and off shut-off relay(RY3). “L”level during jet
motor driving “H” level otherwise
30 P72 OUT Control signal to turn over the rotatory direction of the jet motor.
31 P71 IN
Signal to synchronize LSI with commercial power source frequency.
This is the basic timing for all real time process-
ing of LSI.
32 P70 IN/OUT Memory (EEPROM) data input/output.
33 P67 OUT Terminal to input the program to LSI.
34 P66 IN Terminal to input the program to LSI.
35 P65 OUT Memory (EEPROM) clock out.
36 P64 IN/OUT Terminal to input the program to LSI.
37-88
FLD51-FLD0 OUT Segment data signals.
The relation between signals and indicator are as follows:
Signal (Pin No.) Segment (Pin No.) Signal (Pin No.) Segment (Pin No.) Signal(Pin No.) Segment(Pin No.)
FLD 0 (88)
---------------
10G(45) FLD 18 (70)
----------------
P9 (67) FLD 36 (52)
---------------
P30 (19)
FLD 1 (87)
----------------
9G (46) FLD 19 (69)
---------------
P10 (68) FLD 37 (51)
---------------
P29 (20)
FLD 2 (86)
----------------
8G (47) FLD 20 (68)
---------------
P11 (69) FLD 38 (50)
---------------
P28 (21)
FLD 3 (85)
----------------
7G (48) FLD 21 (67)
---------------
P12 (70) FLD 39 (49)
---------------
P27 (22)
FLD 4 (84)
----------------
6G (49) FLD 22 (66)
---------------
P13 (71) FLD 40 (48)
---------------
P26 (23)
FLD 5 (83)
----------------
5G (50) FLD 23 (65)
---------------
P14 (72) FLD 41 (47)
---------------
P25 (24)
FLD 6 (82)
----------------
4G (51) FLD 24 (64)
----------------
P42 (7) FLD 42 (46)
---------------
P24 (25)
FLD 7 (81)
----------------
3G (52) FLD 25 (63)
----------------
P41 (8) FLD 43 (45)
---------------
P23 (26)
FLD 8 (80)
----------------
2G (53) FLD 26 (62)
----------------
P40 (9) FLD 44 (44)
---------------
P22 (27)
FLD 9 (79)
----------------
1G (54) FLD 27 (61)
---------------
P39 (10) FLD 45 (43)
---------------
P21 (28)
FLD10 (78)
----------------
P1 (59) FLD 28 (60)
---------------
P38 (11) FLD 46 (42)
---------------
P20 (29)
FLD11 (77)
----------------
P2 (60) FLD 29 (59)
---------------
P37 (12) FLD 47 (41)
---------------
P19 (30)
FLD12 (76)
----------------
P3 (61) FLD 30 (58)
---------------
P36 (13) FLD 48 (40)
---------------
P18 (31)
FLD13 (75)
----------------
P4 (62) FLD 31 (57)
---------------
P35 (14) FLD 49 (39)
---------------
P17 (32)
FLD14 (74)
----------------
P5 (63) FLD 32 (56)
---------------
P34 (15) FLD 50 (38)
---------------
P16 (33)
FLD15 (73)
----------------
P6 (64) FLD 33 (55)
---------------
P33 (16) FLD 51 (37)
---------------
P15 (34)
FLD16 (72)
----------------
P7 (65) FLD 34 (54)
---------------
P32 (17)
FLD17 (71)
----------------
P8 (66) FLD 35 (53)
---------------
P31 (18)
89 VEE IN Anode (segment) of Fluorescent Display light-up voltage: -30V.
VEE voltage of power source circuit input.
90-92 PB6-P84 OUT Terminal not used.
93 PB3 IN Signal coming from tact switches (SW10, SW23).
94 PB2 IN Signal coming from tact switches (SW7-9, SW19-22).
95 PB1 IN Signal coming from tact switches (SW4-6, SW15-18).
96 PB0 IN Signal coming from tact switches (SW1-3, SW11-14)
97 AVSS IN A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI.
98 VREF IN Reference voltage input terminal.
A reference voltage applied to the A/D converter in the LSI. Connected to GND.(0V)
99 AN7 OUT
Tact switch strobe signal.
Signal applied to tact switch section (SW3, SW6, SW9).
100 AN6 OUT Tact switch strobe signal.
Signal applied to tact switch section (SW2, SW5, SW8).
Pin No. Signal I/O Description
ON
OFF
During
Jet motor
driving
L
GND
H.
16.7 msec.
H : GND
L (-5V)