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2. Type of encoding and pad names.
Fig. 4 Key Matrix
The membrane keyboard consists of 21 keys whose configurations are described above and provide 11 pad ter-
minations to be connected to the touch control circuit as Fig. 5.
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) 10 MIN pad : Between A and G
2) LOW pad : Between A and H
3) SPEED COOK pad : Between A and I
4) FEEDING BOTTLE pad : Between A and J
5) MENU pad : Between A and K
6) 1 MIN pad : Between B and G
7) M-LOW pad : Between B and H
8) DINNER PLATE pad : Between B and J
9) WEIGHT pad : Between B and K
10) 10 SEC pad : Between C and G
11)
MED
pad : Between C and H
12) BEVERAGE pad : Between C and I
13) MORE pad : Between C and J
14) AUTO DEFROST pad : Between C and K
15) M-HI pad : Between D and H
16) FROZEN PIZZA pad : Between D and I
17) LESS pad : Between D and J
18) CLOCK/A.START pad : Between D and K
19) HIGH pad : Between E and H
20) START pad : Between E and J
21) STOP/CLEAR pad : Between E and K
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