Daewoo KOR-122M0A Service Manual page 37

KOR-121Q0A/Q1A
F
G
BAKED
POTATO
H
POPCORN
I
START
J
STOP/
CLEAR
K
The membrane keyboard consists of 26 keys whose configurations are described in Fig. 8-1 and provide 11
pad terminations to be connected to the touch control circuit as Fig. 7-1
3. Key check procedure.
To determine if the membrane keyboard is defective or not, check the continuity of each pad (KEY) contacts
with a multimeter.
1) 5
2) 0
3) POWER
4) SPEEDY COOK
5) 6
6) 1
7) SOUP
8) MUFFIN
9) 7
10) 2
11) FRESH VEGETABLE pad : Between C and H
12) BEVERAGE
13) MORE
E D
9 8
4 3
DINNER FRESH
PLATE
VEGETABLE
FROZEN BEVERAGE
PIZZA
LESS MORE
CLOCK/ AUTO
A.START DEFROST
Fig. 8-1 Key Matrix
pad : Between A and F
pad : Between A and G
pad : Between A and H
pad : Between A and I
pad : Between B and F
pad : Between B and G
pad : Between B and H
pad : Between B and I
pad : Between C and F
pad : Between C and G
pad : Between C and I
pad : Between C and J
C B
7 6
2 1
SOUP POWER
MUFFIN SPEEDY
COOK
14) AUTO DEFROST
15) 8
16) 3
17) DINNER PLATE
18) FROZEN PIZZA
19) LESS
20) CLOCK/A.START
21) 9
22) 4
23) BAKED POTATO
24) POPCORN
25) START
26) STOP/CLEAR
36
A
5
0
pad : Between C and K
pad : Between D and F
pad : Between D and G
pad : Between D and H
pad : Between D and I
pad : Between D and J
pad : Between D and K
pad : Between E and F
pad : Between E and G
pad : Between E and H
pad : Between E and I
pad : Between E and J
pad : Between E and K