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TEST PROCEDURE RESULTCOMPONENT
Touch Keyboard (see below). Measure the resistance between
the terminal pins of the keypad
(shown below) that you wish to
check.
For example: To measure the
“CLOCK” keypad, refer to the il-
lustration, and:
1.Find the first terminal number
along the top bar (pin 5).
2.Find the second terminal num-
ber in the side bar (pin 8).
3.Set the ohmmeter to the
R x 1
scale.
a) Touch the ohmmeter leads
between pins 5 and 8 on the
ends of the FPC connector.
b) Press the CLOCK keypad.
1
2
3
4
5
6
7
8
9
10
11
12
13
FPC CONNECTOR
(TOP)
BEVERAGE
DEFROST
CLOCK
60
71
82
93
4
5
FAN
FROZEN
ENTREE
POPCORN
TIMER
SET
TURNTABLE
WARM
HOLD
BAKED
POTATO
REHEAT
TIMER
OFF
ADD
MINUTE
LIGHT
COOK
POWER
COOK
TIME
COOK
VEGETABLE
OFF
CANCEL
START
ENTER
1
2
3
45
6
7
8
9
10
11
12
13
KEYBOARD MATRIX
Normal Reading:
100 Ω resistance.