6-4
TOUCH PANEL & MICROCOMPUTER BOARD TEST
The microwave oven has a self-diagnostic test
that can be accessed through the touch panel
keypad. To perform the test:
1. Be sure power is connected to the micro-
wave oven and that the door is closed.
NOTE: You will have to access the touch panel
and the power cord plug in the next step. If you
cannot access them both, have another per-
son available to help you with the step.
2. Perform the following sequence to enter
the touch panel “self-test” mode:
a) Press and
hold
the OFF/CANCEL key-
pad.
b) Open the oven door.
c) Unplug the power cord plug for 2 sec-
onds and then plug it back in.
d) Release the OFF/CANCEL keypad and
close the door.
3. Press each touch panel keypad, as shown
in the Key Table to the right. As you do, the
number
8
should appear in the display
position shown in the chart, to indicate that
the circuits are complete, and that the re-
lays are working properly.
NOTE: If you should press the OFF/CANCEL
keypad during any of the tests, you will exit the
test mode. Perform step 2 to reenter the test
mode.
Key Name
Function
Display
Position*
POPCORN
5
BAKED POTATO
–
–
4
DINNER PLATE
–
3
BEVERAGE
–
2
SOFTEN
–
1
REHEAT
–
5
COOK
Humidity Sensor
DEFROST
–
2
MELT
–
1
COOK TIME
–
5
COOK POWER
–
4
WARM HOLD
–
2
KIDS MENU
–
1
1
Relay 4901
5
3
2
Relay 4903
3
4
6
5
4
Relay 4906
3
9
8
7
Hood Fan Triac
3
TIMER SET/OFF
5
4
CLOCK
Buzzer
3
JET START
1
LIGHT
ON/NIGHT/OFF
VENT FAN
4 SPEEDS
TURNTABLE
ON/OFF
OFF/CANCEL
Exit Test Mode
–
* “ 8” will appear in the display position indicated
in the table.
Eight seconds after pressing COOK, “Hmxxx” will
appear in the display.
–
–
–
–
–
–
–
–
–
–
–
5
4
3
0
5
4
5
4
5
4
3
2
1