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PROCEDURE
LETTER
If the control unit responds by clearing with a beep the key unit is faulty and must be replaced. If the
control unit does not respond, it is faulty and must be replaced. If a specific pad does not respond,
the above method may be used (after clearing the control unit) to determine if the control unit or key
pad is at fault.
5. Reconnect all leads removed from components during testing.
6. Re-install the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
K
RELAY TEST
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the leads to the primary of the power transformer.
5. Ensure that these leads remain isolated from other components and oven chassis by using insulation
tape.
6. After that procedure, re-connect the power supply cord.
7. Remove the outer case and check voltage between Pin No. 1 of the 2 pin connector (A) and the
common terminal of the relay RY1 on the control unit with an A.C. voltmeter.
The meter should indicate 120 volts, if not check oven circuit.
RY1 and RY2 Relay Test
These relays are operated by D.C. voltage
Check voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation.
DC. voltage indicated ............. Defective relay.
DC. voltage not indicated ........ Check diode which is connected to the relay coil. If diode is good,
control unit is defective.
RELAY SYMBOL
RY1
RY2
8. Disconnect the power supply cord, and then remove outer case.
9. Open the door and block it open.
10. Discharge high voltage capacitor.
11. Reconnect all leads removed from components during testing.
12. Re-install the outer case (cabinet).
13. Reconnect the power supply cord after the outer case is installed.
14. Run the oven and check all function.
L
COMPU DEFROST TEST
WARNING : The oven should be fully assembled before following procedure.
(1) Place one cup of water in the center of the turntable tray in the oven cavity.
(2) Close the door, touch the Defrost Center pad and touch the number pad 5 to select steaks, chops
or fish. Touch the number pad 5 for 0.5 lb in weight. And then touch the Start pad.
(3) The oven is in Compu Defrost cooking condition.
(4) The oven will operate as follows
TEST PROCEDURES
COMPONENT TEST
G 1
G 2
Fresh
Rice
vegetables
Ground
Poultry
meat
Vegetables
Entrees
OPERATIONAL VOLTAGE
Approx. 24.0V D.C.
Approx. 23.0V D.C.
17
G 3
G 4
G 5
G 6
Bevarage
1
2
3
center
From the
6
7
8
Pantry
Start
Timer
KeepWarm
Plus
Touch On
Clock
Fish
Power
Breakfast
Lunch
Seafood
Level
Defrost
Custom
Baked
Center
Help
potatoes
CONNECTED COMPONENTS
Oven lamp / Turntable motor / Cooling fan motor
Power transformer
R-330EK
R-330EW
G 7
G 8
4
5
G 9
9
0
G10
Minute
Snacks
G11
Plus
Stop
15Minute
G12
Recipes
Clear
Sensor
Popcorn
G13
reheat
G14
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