R - 5 3 0 E K
R - 530EW
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
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.
7.Reconnect the power supply cord after the outer case is installed.
8.Run the oven and check all functions.
G 1 
G 2 
G 3 
G 4 
G 5 
G 6 
G 7 
G 8 
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| Beverage | 1 |
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Fresh | Rice | From the | 6 |
| 7 | 8 | 9 |
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vegetables | Pantry |
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Ground | Poultry |
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| Start |
| Timer | Keep | Snacks | Minute | ||
meat |
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| Touch On | Clock | Warm | Plus | |||||
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| Vegetables | Fish |
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| Power |
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| Stop |
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Entrees |
| Breakfast | Lunch |
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Seafood |
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| Recipes | ||||
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| Defrost | Custom | Baked | Sensor | Popcorn | |||
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| Center | Help | potatoes | reheat | ||||
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G 9
G10
G11
G12
G13
G14
KRELAY TEST
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,
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 |
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RY1 | Approx. 24.0V D.C. | Oven lamp / Turntable motor / Cooling fan motor |
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RY2 | Approx. 23.0V 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.
13.Reconnect the power supply cord after the outer case is installed. 14.Run the oven and check all functions.
LCOMPU 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. And touch the number pad 5 again. And then touch the Start pad.
(3)The oven is in Defrost Center cooking condition.
(4)The oven will operate as follows.
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