R-772M (serv.man2) - Sharp Home Appliance Service Manual (repair manual). Page 20

Read Sharp R-772M (serv.man2) Service Manual online

20
Pin No.
Signal
I/O
Description
42
P26
OUT
Terminal not used.
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 for a while after oven or dual
cooking. "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.
46-47
P22-P21
OUT
Terminal not used.
48
P20
OUT
Terminal not used.
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:
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.
ON
OFF
During cooking or for 5 minutes after
grill, or for awhile after convection or dual. 
L
GND
H.
LSI(IZA965DR)
The I/O signal of the LSI(IZA965DR) are detailed in the following table.
  DESCRIPTION OF LSI
Page of 43
Display

Click on the first or last page to see other R-772M (serv.man2) service manuals if exist.