R - 5 3 0 E K
R - 530EW
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
CHECKING CONTROL UNIT
(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 sensor connector that is mounted to control panel.
(5)Then connect the dummy resistor circuit (see fig.) to the sensor connector of control panel.
(6)Disconnect the leads to the primary of the power transformer.
(7)Ensure that these leads remain isolated from other components and oven chassis by using insulation tape.
(8)After that procedure,
(9)Check the sensor cook operation proceed as follows:
If the above is not the case, the control unit is probably defective. If the above is proper, the AH sensor is probably defective.
(10)Disconnect the power supply cord, and then remove outer case.
(11)Open the door and block it open.
(12)Discharge high voltage capacitor.
(13)Disconnect the dummy resistor circuit from the sensor connector of control panel.
(14)Carry out necessary repair.
(15)Reconnect all leads removed from components during testing and repairing.
(16)
(17)Reconnect the power supply cord after the outer case is installed. Run the oven and check all functions.
(18)Carry out "Water load cooking test" again and ensure that the oven works properly.
| R1, R2 : 22Ω ± 1% | 1/2W | ||
| R3 : | 4.3kΩ ± 5% | 1/4W | |
| R4 : |
| 1MΩ ± 5% | 1/4W |
| To connector (F) |
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| on Control Unit. |
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1 |
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2 |
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R1 |
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3 |
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| R2 | R3 | R4 | |
| CONNECTOR | |||
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Plunger
NC
NO
COM
COM NO
NC
Sensor Dummy Resistor Circuit
20