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MEMBRANE KEYBOARD CHECK PROCEDURE
1. Check the pad termination order and nomenclature
PCB Termination PCB Connector
2. Type of encoding and pad names
F
G
H
I
J
K
The membrane keyboard consists of 28 keys whose configurations are described above and provide 11 pad terminations
to be connected to the touch control circuit.
A
1
B
2
C
3
D
4
E
5
F
6
G
7
H
8
I
9
J
10
K
11
E
D
9
8
4
3
BAKED
REHEAT
FRESH
POTATO
VEGETABLE
POPCORN
FROZEN
BEVERAGE
PIZZA
START
LESS
MORE
STOP/
CLOCK/
AUTO
CLEAR
A.START
DEFROST
C
B
7
6
2
1
SOUP
POWER
MUFFIN
QUICK
START
FAN
LIGHT
27
TROUBLESHOOTING GUIDE
/
/
A
5
0
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