Read Sharp R-90GCK (serv.man8) Service Manual online
21
R-90GCK
27
P75
OUT
Cooling fan motor driving signal.
To turn on and off shut-off relay(RY5). “L” level
during both microwave and convection cooking;
“H” level otherwise
To turn on and off shut-off relay(RY5). “L” level
during both microwave and convection cooking;
“H” level otherwise
28
P74
OUT
Damper motor relay driving signal.
To turn on and off shut-off relay(RY4).
To turn on and off shut-off relay(RY4).
29
P73
OUT
Convection motor driving signal.
To turn on and off shut-off relay(RY3). “L”level
during CONVECTION, GRILL, DUAL1, DUAL2
or PREHEAT; “H” level otherwise
To turn on and off shut-off relay(RY3). “L”level
during CONVECTION, GRILL, DUAL1, DUAL2
or PREHEAT; “H” level otherwise
30
P72
OUT
Control signal to turn over the rotatory direction of the convection motor.
31
P71
IN
Signal to synchronize LSI with commercial power source frequency.
This is the basic timing for all real time
processing of LSI.
This is the basic timing for all real time
processing 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:
The relation between signals and indicator are as follows:
Signal
Segment
Signal
Segment
Signal
Segment
(Pin No.)
(Pin No.)
(Pin No.)
(Pin No.)
(Pin No.)
(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.
VEE voltage of power source circuit input.
90
PB6
OUT
Terminal not used.
91
PB5
OUT
LED driving signal.
Signal is applied to the light-emitting diodes (LD1, LD2, LD3, LD5, LD7, LD9 and
LD11).
Signal is applied to the light-emitting diodes (LD1, LD2, LD3, LD5, LD7, LD9 and
LD11).
92
PB4
OUT
LED driving signal.
Signal is applied to the light-emitting diodes (LD4, LD6, LD8 and LD10).
Signal is applied to the light-emitting diodes (LD4, LD6, LD8 and LD10).
93-96
PB3-PB0
IN
Signal coming from tact switch.
97
AVSS
IN
A/D converter power source voltage.
The power source voltage to drive the A/D converter in the LSI.
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)
GND.(0V)
Pin No.
Signal
I/O
Description
ON
OFF
During
cooking
L
GND
H.
ON
OFF
H : GND
L
ON
OFF
During
cooking
L
GND
H.
(Convection)
20 msec.
H : GND
L (-5V)
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