Sharp R-820BK Service Manual page 29

Pin No. Signal I/O
39 XOUT OUT
40 VSS IN
41 P27 OUT
42 P26 OUT
43 P25 OUT
44 P24 OUT
45 P23 OUT
46-48 P22-P20 OUT
49-50 P17-P16 OUT
51-80 OUT
SEG39-SEG10
Internal clock oscillation frequency control output.
Output to control oscillation input of XOUT.
Power source voltage: -5V.
VC voltage of power source circuit input.
Bottom heater driving signal.
To turn on and off the bottom relay (RY4).
"L" level during grill (TOP AND BOTTOM)
cooking, Convection cooking or Roast
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.
Convection motor driving signal.
To turn on and off shut-off relay(RY1). "L"
level during CONVECTION; "H" level oth-
erwise. (Relay RY1 does not turn on at
preheating mode.)
Fan motor driving signal.
To turn on and off the fan motor relay RY5. "L"
level during cooking, or for 5 minutes after grill
cooking or for a while after convection or roust
cooking. "H" level otherwise.
Terminal not used.
Common data signal: COM5.
Connected to LCD (Pin No. 37)
Segment data signal.
Connected to LCD. No connection in LCD.
Segment data signal.
Connecte 0d to LCD. No connection in LCD.
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.) LCD (Pin No.)
SEG 0 (90) ............... SEG45 (51)
SEG 1 (89) ............... SEG44 (50)
SEG 2 (88) ............... SEG43 (49)
SEG 3 (87) ............... SEG42 (48)
SEG 4 (86) ............... SEG41 (47)
SEG 5 (85) ............... SEG40 (46)
SEG 6 (84) ............... SEG39 (45)
SEG 7 (83) ............... SEG38 (44)
SEG 8 (82) ............... SEG37 (43)
SEG 9 (81) ............... SEG31 (31)
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)
SEG21 (69) .............. SEG19 (19)
SEG22 (68) .............. SEG18 (18)
27
Description
Power output
100 %
90 %
80 %
70 %
60 %
50 %
40 %
30 %
20 %
10 %
During
cooking
(Convection)
ON
ON
LSI signal (Pin No.) LCD (Pin No.)
SEG23 (67) ............ SEG17 (17)
SEG24 (66) ............ SEG16 (16)
SEG25 (65) ............ SEG15 (15)
SEG25 (65) ............ SEG15 (32)
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)
P16 (50) ................. SEG32 (38)
P17 (49) ................. SEG33 (39)
P20 (48) ................. SEG34 (40)
P21 (47) ................. SEG35 (41)
P22 (46) ................. SEG36 (42)
R-820BK
R-820BW
ON time OFF time
48 sec. 0 sec.
44 sec. 4 sec.
40 sec. 8 sec.
36 sec. 12 sec.
32 sec. 16 sec.
26 sec. 22 sec.
22 sec. 26 sec.
16 sec. 32 sec.
12 sec. 36 sec.
8 sec. 40 sec.
H. GND
OFF
L
H.
GND
OFF
L
For 5 minutes after grill, or for a
while after convection or roust.