Service manual

8
R-209EK
6
45
1
2
3
6
45
1
2
3
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
Figure S-2. Control Panel Circuit
+
–
+
–
+
–
A 3 A 1
NO
COM
G10
G 9 G 8 G 7
G 6 G 5 G 4 G 3 G 2 G 1
B 2
B 1
AC(N)
T1
POWER UNIT
ab
d
c
RY1
D1 D2
D3
R4 910 1/2w
VR
R41 15k
NOTE : IF NOT SPECIFIED, 1SS270A
: IF NOT SPECIFIED, 1/10W ± 5%
R70 15k R71 15k R72 15k R73 15k
R40 4.7k
R78 220k
R77 220k
R76 220k
R67
15k
R66
15k
R65
15k
R64
15k
R63
15k
R62
15k
R75 220k
C63 330p/50v
C62 330p/50v
C61 330p/50v
C60 330p/50v
D22 D40
Q10 DTA143EKA
Q30 DTA143EKA
Q20 DTA143EKA
Q22 DTA143ES
Q21 DTD143ES
Q1 2SA1037AK
D1-D4 11ES1
1 2 3 4 5 6 7
IC1 IXA078DR
D4
VRS1 10G471K
C2 470µ/25v
R30
3.3k 1/4w
C1 0.1µ/50v
C10
0.1µ
/25v
C20 0.1µ /25v
C8 47µ/16v
C21 10µ/35v
R10 15k
R50 20kF
R20 15k
R6 15k
R5
1k
HZ4C3
ZD1
C3 0.01µ/25v
C40 0.01µ/25v
C5 0.1µ/25v
C6 0.1µ/25v
C7 0.1µ /25v
C4
S12
SEG19
VC3
B Z
R00
R01
R02
R03
P20
P21
P22
P23
K00
K01
K02
K03
COM0
COM1
VC2
VC1
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
S11
S10
S 9
S 8
S 7
S 6
S 5
S 4
S 3
S 2
S 1
C 1
C 2
C 3
0.01µ
/25v
C11 0.01µ/25v
SP1
PKM22EPT
D20
(J1)
D21
RY2
AC120V 60Hz
OVEN LAMP TURNTABLE MOTOR FAN MOTOR
DOOR SENSING SWITCH
MICRO
AC(H)
GND
(J15) 4.7k (J11) 10k
(J12) 20k
(J13) 4.7k
15 29
30 44
4554
1 14
(J14)
RESET
SEG12 SEG11 SEG10
SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0
COM3 COM2
TEST
VSS
OCS3 OCS4
VD1
VDD
AVDD
AVREF
AVSS
P40 P41 P42 P43
FRESH
VEGETABLES
Power
Level
Stop
Clear
ROLLS
MUFFINS
DINNER
PLATE
MINUTE
PLUS
BAKED
POTATOES
START
EXPRESS
DEFROST
POPCORN
BEVERAGE
6 3 9
2 5 0 8
4 1 7
CPU UNIT
ON DEF. LBS QTY. CHECK
LIQUID CRYSTAL DISPLAY
KEY UNIT
VC
GND
GND
Timer
Clock
FROZEN
ENTREES
(J10) 7.5k