16
R - 50 8 D K
R - 5 10 D K
R -51 0DW
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 " COMPU DEFROST " pad twice.
(3) Touch the Number pad " 5 " and then touch the " START " pad.
(4) The oven is in Compu Defrost cooking condition.
(5) The oven will operate as follows
WEIGHT
1ST STAGE
2ND STAGE
LEVEL
TIME
LEVEL
TIME
0.5lb
70%
30sec.
40%
15sec.
correspond to the STOP/CLEAR pad making momentary contact. 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.
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT 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
OPERATIONAL VOLTAGE
CONNECTED COMPONENTS
RY1
Approx. 11.8V D.C.
Oven lamp / Turntable motor / Cooling fan motor
RY2
Approx. 10.7V D.C.
Power transformer
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 functions.
L
COMPU DEFROST TEST
K
RELAY TEST
5
4
3
2
1
0
9
8
7
6
START
BEVERAGE
POPCORN
CASSEROLE
POWER
LEVEL
COMPU
DEFROST
MINUTE
PLUS
ROLLS &
MUFFINS
DINNER
PLATE
GROUND
MEAT
FROZEN
ENTREES
BAKED
POTATOES
STOP
CLEAR
TIMER
CLOCK
FRESH
VEGETABLES
FROZEN
VEGETABLES
MICROWAVE
PIZZA
G 8
G 9
G10
G11
G12
G13
G14
G 7
G 6
G 5
G 4
G 3
G 2
G 1
R-510DK/DW
