3. When there is no microwave oscillation

1) When touching START pad, oven lamp does not turn on.

Fan motor do not rotate, but cook indicator in display comes on.

*Cause : RELAY 2 does not operate. refer to Circuit Diagram (Point 3)

-Check method

STATE

POINT

A

B

 

 

 

 

RELAY 2 ON

 

-5VDC

GND

RELAY 2 OFF

GND

-12VDC

2) When touching START pad, oven lamp turns on.

Fan motor and turntable rotate and cook indicator in display comes on.

*Cause : RELAY 1 does not operate. refer to Circuit Diagram (Point 2) - Check method

STATE

POINT

A

B

 

 

 

 

RELAY 1 ON

 

-5VDC

GND

RELAY 1 OFF

GND

-12VDC

4.When the door is opened during operation, the count down timer does not stop.

refer to Circuit Diagram (Point 1) -Check method

STATE

POINT

A

B

 

 

 

 

1) DOOR OPEN

 

OPEN

-5VDC

2) DOOR CLOSED

CLOSE

GND

CHECK NO

METHOD

REMEDY

 

 

 

1

Check the stage (ON, OFF) of the door open monitor switch by

Replace door open monitor

 

resistance measurement.

switch.

 

 

 

5.When the digital clock does not operate properly.

refer to Circuit Diagram (Point 5)

POINT

A

WAVE FORM

T:16.7ms(60Hz)

* If clock does not keep exact time, you must check resistor R15, 16 zener diode ZD1.

28

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Daewoo KOR-630A0A State Point Relay 2 on, Gnd, Relay 2 OFF, State Point Relay 1 on, Relay 1 OFF, State Point Door Open

KOR-630A0A, KOR-630A1A, KOR-630A9A specifications

The Daewoo KOR-630 series of microwave ovens, including models KOR-630A9A, KOR-630A1A, and KOR-630A0A, represent a blend of innovative technology and user-friendly designs tailored for modern cooking needs. This range positions itself as a reliable choice for households seeking efficiency and performance.

One of the standout features of the KOR-630A9A, KOR-630A1A, and KOR-630A0A is their impressive power output. These models typically offer a microwave power of around 900 watts, ensuring quick heating and cooking times, which is essential for busy lifestyles. This power allows users to defrost, reheat, and cook meals in a fraction of the time compared to conventional methods.

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Overall, the Daewoo KOR-630A9A, KOR-630A1A, and KOR-630A0A microwave ovens demonstrate a commitment to quality, performance, and innovation. They succeed in enhancing the cooking experience while prioritizing convenience and safety, making them an excellent addition to any kitchen. Whether for reheating leftovers, defrosting frozen ingredients, or cooking meals from scratch, this series offers versatile solutions that cater to a wide range of cooking needs.