Service manual

47
(KOR-971Q)
Fig. 11 Key Matrix
The membrane keyboard consists of 26 keys whose configurations are described above and provide 11 pad terminations to
be connected to the touch control circuit as Fig. 11.
Key check procedure
To determine if the membrane keyboard is defective or not, check the continuity of each pad (KEY) contacts with a
multimeter.
11) 5 pad : Between A and F
12) 0 pad : Between A and G
13) POWER pad : Between A and H
14) SPEEDY COOK pad : Between A and I
15) FEEDING BOTTLE pad : Between A and J
16) 6 pad : Between B and F
17) 1 pad : Between B and G
18) SOUP pad : Between B and H
19) MUFFIN pad : Between B and I
10) 7 pad : Between C and F
11) 2 pad : Between C and G
12) FRESH VEGETABLE pad : Between C and H
13) BEVERAGE pad : Between C and I
14) MORE pad : Between C and J
15) AUTO DEFROST pad : Between C and K
16) 8 pad : Between D and F
17) 3 pad : Between D and G
18) DINNER PLATE pad : Between D and H
19) FROZEN PIZZA pad : Between D and I
20) LESS pad : Between D and J
21) CLOCK/A.START pad : Between D and K
22) 9 pad : Between E and F
23) 4 pad : Between E and G
24) BAKED POTATO pad : Between E and H
25) START pad : Between E and J
26) STOP/CLEAR pad : Between E and K
9
5
8
4
7
3
6
2
5
1
6
4 3 2 1 0
7
DINNER
PLATE
FRESH
VEGETABLE
BAKED
POTATO
FROZEN
PIZZA
LESS MORESTART
CLOCK/
A.START
AUTO
DEFROST
STOP/
CLEAR
MUFFIN
SOUP
SPEEDY
COOK
FEEDING
BOTTLE
BEVERAGE
POWER
8
9
10
11
N.C
N.C
N.C N.C
E D C B A
F
G
H
I
J
K