
34
2. Type of encoding and pad names.
Fig. 5 Key Matrix
The membrane keyboard consists of 27 keys whose configurations are described above and provide 11 pad ter-
minations to be connected to the touch control circuit as Fig. 4.
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.
E
D
C
B
A
F
G
H
I
J
K
9
8
7
6
5
4
3
2
1
0
STOP/
CLEAR
CLOCK/
A.START
AUTO
DEFROST
FROZEN
PIZZA
VEGETABLE
SPEEDY
COOK
FEEDING
BOTTLE
BEVERAGE
START
BAKED
POTATO
LESS
HIGH
M-HI
MED
M-LOW
LOW
MORE
1) 5
pad : Between A and F
2) 0
pad : Between A and G
3) LOW
pad : Between A and H
4) SPEEDY COOK
pad : Between A and I
5) FEEDING BOTTLE
pad : Between A and J
6) 6
pad : Between B and F
7) 1
pad : Between B and G
8) M-LOW
pad : Between B and H
9) VEGETABLE
pad : Between B and I
10) 7
pad : Between C and F
11) 2
pad : Between C and G
12) MED
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) M-HI
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) HIGH
pad : Between E and H
25) BAKED POTATO
pad : Between E and I
26) START
pad : Between E and J
27) STOP/CLEAR
pad : Between E and K
Содержание KOR-612L0S
Страница 44: ...Fig 6 Measurement Point 43...
Страница 47: ...46 2 P C B CIRCUIT DIAGRAM L type...
Страница 48: ...47 3 COMPONENT INFORMATION 1 Transistor 2 Diode and Zener Diode...
Страница 49: ...48 4 PRINTED CIRCUITS BOARD...
Страница 53: ...52 EXPLODED VIEW...