Read Sharp R-952M Service Manual online
R-952M - 12
Pin No.
Signal
I/O
Description
ON
OFF
During
cooking
L
GND
H.
(Convection or dual cooking)
ON
OFF
During cooking or for 5 minutes after
grill, or for awhile after convection or dual.
grill, or for awhile after convection or dual.
L
GND
H.
ON
OFF
L
GND
H.
41
P27
OUT
Convection heater driving signal.
To turn on and off the relay (RY4).
"L" level during convection cooking
or dual cooking, "H" level
otherwise.
The heater relay turns on and off
within a 48 second time base in
accordance with the special
program in LSI.
"L" level during convection cooking
or dual cooking, "H" level
otherwise.
The heater relay turns on and off
within a 48 second time base in
accordance with the special
program in LSI.
42
P26
OUT
Convection motor driving signal.
To turn on and off shut-off relay(RY7). "L"
level during convection or dual cooking "H"
level otherwise. (Relay RY7 does not turn
on at preheating mode.)
level during convection or dual cooking "H"
level otherwise. (Relay RY7 does not turn
on at preheating mode.)
43
P25
OUT
Fan motor driving signal.
To turn on and off the fan motor relay RY6.
"L" level during cooking, or for 5 minutes
after grill cooking or Mix cooking for a
while after convection. "H" level otherwise.
"L" level during cooking, or for 5 minutes
after grill cooking or Mix cooking for a
while after convection. "H" level otherwise.
44
P24
OUT
Terminal not used.
45
P23
OUT
Touch control transformer driving signal.
To turn on and off the shut off relay (RY5). If the oven has not been used for
more than 2 minutes, the relay RY5 will be turned off. The relay RY5 will be
turned on when the oven door is opened and closed.
more than 2 minutes, the relay RY5 will be turned off. The relay RY5 will be
turned on when the oven door is opened and closed.
46
P22
OUT
Damper motor relay driving signal.
To turn on and off the shut off relay (RY8).
47
P21
OUT
Terminal not used.
48
P20
IN
Input signal which communicates the damper open/close information to
LSI.
LSI.
Damper opened; "H" level signal (0V:GND).
Damper closed; "L" level signal (-5V:VC).
Damper closed; "L" level signal (-5V:VC).
49-50
P17-P16
IN
Terminal to change functions according to the model.
51-80
SEG39-SEG10
OUT
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
The relation between signals are as follows:
LSI signal (Pin No.)
LCD (Pin No.)
LSI signal (Pin No.) LCD (Pin No.)
SEG 0 (90) .................... SEG39 (51)
SEG21 (69) ................. SEG19 (19)
SEG 1 (89) .................... SEG38 (50)
SEG22 (68) ................. SEG18 (18)
SEG 2 (88) .................... SEG37 (49)
SEG23 (67) ................. SEG17 (17)
SEG 3 (87) .................... SEG36 (48)
SEG24 (66) ................. SEG16 (16)
SEG 4 (86) .................... SEG35 (47)
SEG25 (65) ................. SEG15 (15)
SEG 5 (85) .................... SEG34 (46)
SEG26 (64) ................. SEG14 (14)
SEG 6 (84) .................... SEG33 (45)
SEG27 (63) ................. SEG13 (13)
SEG 7 (83) .................... SEG32 (44)
SEG28 (62) ................. SEG12 (12)
SEG 8 (82) .................... SEG31 (43)
SEG29 (61) ................. SEG11 (11)
SEG10 (80) ................... SEG30 (30)
SEG30 (60) ................. SEG10 (10)
SEG11 (79) ................... SEG29 (29)
SEG31 (59) ................... SEG 9 ( 9)
SEG12 (78) ................... SEG28 (28)
SEG32 (58) ................... SEG 8 ( 8)
SEG13 (77) ................... SEG27 (27)
SEG33 (57) ................... SEG 7 ( 7)
SEG14 (76) ................... SEG26 (26)
SEG34 (56) ................... SEG 6 ( 6)
SEG15 (75) ................... SEG25 (25)
SEG35 (55) ................... SEG 5 ( 5)
SEG16 (74) ................... SEG24 (24)
SEG36 (54) ................... SEG 4 ( 4)
SEG17 (73) ................... SEG23 (23)
SEG37 (53) ................... SEG 3 ( 3)
SEG18 (72) ................... SEG22 (22)
SEG38 (52) ................... SEG 2 ( 2)
SEG19 (71) ................... SEG21 (21)
SEG39 (51) ................... SEG 1 ( 1)
SEG20 (70) ................... SEG20 (20)
81
SEG9
OUT
Terminal not used.
82-90
SEG8-SEG0
OUT
Segment data signal.
Connected to LCD. Signal is similar to SEG39.
91
VCC
IN
Connected to GND.
DESCRIPTION OF LSI
LSI(IZA963DR)
The I/O signal of the LSI(IZA963DR) are detailed in the following table.
Power output
ON time
OFF time
100 %
48 sec.
0 sec.
90 %
44 sec.
4 sec.
80 %
40 sec.
8 sec.
70 %
36 sec.
12 sec.
60 %
32 sec.
16 sec.
50 %
26 sec.
22 sec.
40 %
22 sec.
26 sec.
30 %
16 sec.
32 sec.
20 %
12 sec.
36 sec.
10 %
8 sec.
40 sec.
Click on the first or last page to see other R-952M service manuals if exist.