Service manual

62
P.C.B CIRCUIT DIAGRAM
KOR-971M0A
ABCDE
F
G
H
I
J
K
DP1
SVM-5MS06
IC1
HD404314C43S
15 16 18 19 20 22 23
6 5
14
4
10 17 21
g
f
e d
c
b a
i
h
G3 G5 G4 G2 G1
g
c
b a
f
e d h
i
G3 G1 G2 G4 G5
16 18 19 25
6 1
22
7 8 9
42 41 40 39 38 37 36 34 33 26 27 28 29 30 23 24
2 3 4 5
15 12 14
1, 2 25
CN2
86749-911
D4
1N4148M
D5
1N4148M
D3
1N4148M
D2
1N4148M
D1
1N4148M
CA1
1000PF
RA1
100K
DINNER
PLATE
POWER
FROZEN
PIZZA
BEVERAGE
MUFFIN
SPEEDY
COOK
FEEDING
BOTTLE
START LESS
MORE
STOP/
CLEAR
CLOCK/
A.START
AUTO
DEFROST
WEIGHT MENU
9 8 7 6 5 4 3 2 1 0
V1 V1
R6
1K
V1
CN1 YW396-02V
RY1 G5J-1-TP-M24V
D9 1N4002 D10 1N4002
Q3 A1270Y
R13 4.7K
Q4 A1270Y
R15 1K
R18 4.7K
Q5 C3198GR
V2
D14
D11
R22 R25
ZD2
V2
V1
R24 R23 R19 R14 EC1,2
D13
F2
F1
D12
ZD1
EC4 2.2µF 50V
EC3 0.1µF 50V
R10 4.7K
RY2 G5B-1-24V
BZ1 BM-20K
R20 1K
56
1/2W
R21
1.2K
1/2W
3.9V
1/2W
R4
1K
R3
200
56
1/2W
150
1/2W
150
1/2W
150
1/2W
150
1/2W
5.1VB
1/2W
47µF
16V
LVIT1 DMR-604FS
ZD3 20B 1/2W
CN3
YW396-05VA
EC5 470µF 50V
Q1 A1270Y
V1 : -5V V2 : -24V
R11 47K
V1
V1
V1
R5
20K
CR1 4M
C3 0.1µF
R1 1M
C1 0.1µF
C4 0.01µF
R17 47K
R2 1K
1N4002X4
D7 1N4148M
C2 0.1µF
R8 20K
D6
R26
5.6
V1
R9
1N4148M
1K
RY3 G5J-1-TP-M24V
D8 1N4002
Q2 A1270Y
R12 4.7K
6
7
8 10
1
2
F1 F2
SJ1 SJ3
V1
971MOS
SJ1 INSERTION SJ2 REMOVAL SJ3 INSERTION LVT1 DMR-604FS
17
LVT1
BUZZER
VDD
Vdp
INT
11 10
RESET
OSC IN
OSC OUT
GND
20 21
35
SLOW ACTING RELAY PART
31 32