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DESCRIPTION OF LSI
LSI(IZA965DR)
The I/O signal of the LSI(IZA965DR) are detailed in the following table.
Pin No.
Signal
39
XOUT
40
VSS
41
P27
42
P26
43
P25
44
P24
45
P23
46-47
P22-P21
48
P20
49-50
P17-P16
51-80
SEG39-SEG10
81
SEG9
I/O
OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of XOUT.
IN
Power source voltage: -5V.
VC voltage of power source circuit input.
OUT
Bottom heating element driving signal.
To turn on and off the relay (RY4). "L"
level during grill cooking, 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.
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.)
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 for a while after convection or dual
cooking. "H" level otherwise.
OUT
Terminal not used.
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.
OUT
Terminal not used.
OUT
Terminal not used.
IN
Terminal to change functions according to the model.
OUT
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
SEG 0 (90) ....................SEG39 (51)
SEG 1 (89) ....................SEG38 (50)
SEG 2 (88) ....................SEG37 (49)
SEG 3 (87) ....................SEG36 (48)
SEG 4 (86) ....................SEG35 (47)
SEG 5 (85) ....................SEG34 (46)
SEG 6 (84) ....................SEG33 (45)
SEG 7 (83) ....................SEG32 (44)
SEG 8 (82) ....................SEG31 (43)
SEG10 (80) ...................SEG30 (30)
SEG11 (79) ...................SEG29 (29)
SEG12 (78) ...................SEG28 (28)
SEG13 (77) ...................SEG27 (27)
SEG14 (76) ...................SEG26 (26)
SEG15 (75) ...................SEG25 (25)
SEG16 (74) ...................SEG24 (24)
SEG17 (73) ...................SEG23 (23)
SEG18 (72) ...................SEG22 (22)
SEG19 (71) ...................SEG21 (21)
SEG20 (70) ...................SEG20 (20)
OUT
Terminal not used.
Description
LCD (Pin No.)
R-872M - 20
Power output
ON time
100 %
48 sec.
90 %
44 sec.
80 %
40 sec.
70 %
36 sec.
60 %
32 sec.
50 %
26 sec.
40 %
22 sec.
30 %
16 sec.
20 %
12 sec.
10 %
8 sec.
During
OFF
cooking
(Convection or dual cooking)
ON
H.
OFF
ON
L
During cooking or for 5 minutes after
grill, or for awhile after convection or dual.
LSI signal (Pin No.) LCD (Pin No.)
SEG21 (69) ................. SEG19 (19)
SEG22 (68) ................. SEG18 (18)
SEG23 (67) ................. SEG17 (17)
SEG24 (66) ................. SEG16 (16)
SEG25 (65) ................. SEG15 (15)
SEG26 (64) ................. SEG14 (14)
SEG27 (63) ................. SEG13 (13)
SEG28 (62) ................. SEG12 (12)
SEG29 (61) ................. SEG11 (11)
SEG30 (60) ................. SEG10 (10)
SEG31 (59) ................... SEG 9 ( 9)
SEG32 (58) ................... SEG 8 ( 8)
SEG33 (57) ................... SEG 7 ( 7)
SEG34 (56) ................... SEG 6 ( 6)
SEG35 (55) ................... SEG 5 ( 5)
SEG36 (54) ................... SEG 4 ( 4)
SEG37 (53) ................... SEG 3 ( 3)
SEG38 (52) ................... SEG 2 ( 2)
SEG39 (51) ................... SEG 1 ( 1)
OFF time
0 sec.
4 sec.
8 sec.
12 sec.
16 sec.
22 sec.
26 sec.
32 sec.
36 sec.
40 sec.
H.
GND
L
GND
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