R-875/885 - 26
47 P21 OUT Grill (TOP) heating element driving signal.
To turn on and off the grill heating element relay
(RY3). “L” level during grill cooking, convection
cooking or dual cooking. “H” level otherwise. The
heater relay turns on and off within a 54 second time
base in accordance with the special progrom in LSI.
48 P20 OUT
Oven lamp and turntable motor driving signal(Square Waveform : 50Hz).
To turn on and off shut-off relay (RY1).
The square waveform voltage is
delivered to the relay (RY1) driving
circuit.
49-50 P17-P16 OUT Terminal not used.
51-80 SEG39-SEG10 OUT Segment data signal.
Connected to LCD.
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.
92 VREF IN Connected to GND.
93 AVSS IN Connected to VC.
94 COM3 OUT Terminal not used.
95 COM2 OUT Common data signal: COM3.
Connected to LCD (Pin No. 35).
96 COM1 OUT Common data signal: COM2.
Connected to LCD (Pin No. 34).
97 COM0 OUT Common data signal: COM1.
Connected to LCD (Pin No. 33).
98-99 VL3-VL2 IN Power source voltage input terminal.
Standard voltage for LCD.
100 C2 IN Terminal not used.
Pin No. Signal I/O Description
ON
OFF
During
cooking
L
GND
H.
(Grill, Convection, Dual )
During cooking
L
H
20 msec.
DESCRIPTION OF LSI
The I/O signal of the LSI are detailed in the following table
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