CIRCUIT DESCRIPTION

1.When the food is placed in the oven cavity and door is closed.

•The contact of the interlock monitor switch open.

•The contacts of the primary interlock switch and secondary interlock switch close.

 

Primary

 

 

 

 

 

Interlock

Timer

 

 

 

15A Fuse

Switch

Switch

 

 

 

 

Interlock

 

 

 

 

 

Monitor

TM

CL

GM

FM

 

Switch

 

 

 

 

 

 

Secondary

 

 

 

 

 

Interlock

 

 

 

 

 

Switch

 

 

 

TM Timer motor

CL Cavity lamp

GM Geard motor

FM Fan motor

 

Fig. 1

 

 

 

2.When the timer is set to the time desired.

•The contact of the timer switch close.

•Oven lamp turn on.

•120V AC is applied to the high voltage transformer.

•Turntable motor start rotating and glass tray rotating.

•Fan motor rotating and cools the magnetron by blowing air.

•Timer motor operating and point to passing cooking time.

•3.3 Volts AC is generated from the filament winding of the high voltage transformer. This filament voltage is applied to the magnetron to heat the magnetron filament through two noise preventing choke coils.

•A high voltage of 2000 Volts AC is generated in the secondary of high voltage transformer and this secondary voltage is increased by the action of the diode and the charging of the high voltage capacitor. This resultant D.C voltage is then applied to the anode of the magnetron. As shown in Fig. 2 the first half cycle of the high voltage produces in the high voltage transformer secondary charges the high voltage capacitor. Current flow is in the direction of the dotted-line during the second half cycle, the voltage produced by the transformer secondary, and the charge of the high voltage capacitor are combined and applied to the magnetron as shown by the solid line so that oscillations begins.

The disturbance wave generated by the magnetron is prevented by the choke coils of 1.5µH, filter capacitors of 500pF and the magnetron’s shielded case so that TV and radio programs are not impaired by noise.

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Daewoo KOR-61151, KOR-61155 service manual Circuit Description, When the timer is set to the time desired
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KOR-61155, KOR-61151 specifications

Daewoo has established itself as a prominent player in the home appliance market, particularly with its range of microwave ovens. Among these, the KOR-61151 and KOR-61155 models stand out due to their innovative features and user-friendly technologies. Both models exemplify Daewoo's commitment to quality, efficiency, and convenience, making them ideal choices for modern kitchens.

The Daewoo KOR-61151 is designed with a sleek and compact exterior, making it suitable for any kitchen decor. Its 20-liter capacity provides ample space for cooking a variety of dishes, from reheating leftovers to preparing meals from scratch. The KOR-61151 uses a powerful 800 watts of cooking power, ensuring that food is cooked evenly and efficiently. Equipped with several power levels, users can customize cooking settings to achieve the desired results.

One notable feature of the KOR-61151 is its intuitive control panel, which includes easy-to-read buttons and a digital display. This makes it simple to select cooking times, power levels, and preset functions. Additionally, the model comes with a range of pre-programmed cooking modes, allowing users to quickly prepare popcorn, pizza, and more with just the touch of a button.

On the other hand, the Daewoo KOR-61155 shares many similarities with its counterpart but boasts a few distinct characteristics. This model features a larger 23-liter capacity, making it more suitable for families or individuals who frequently cook larger portions. Like the KOR-61151, it operates at 800 watts, ensuring efficient cooking performance.

The KOR-61155 also incorporates advanced technology, such as a sensor cooking option that adjusts cooking time automatically based on humidity levels. This ensures optimal cooking results without the need for constant monitoring. Furthermore, the KOR-61155 offers a child safety lock, an essential feature for households with young children, ensuring that the appliance remains safe and secure.

Both microwave models incorporate a sturdy turntable, which aids in even heating and cooking of food. Additionally, they feature a quick defrost function, enabling users to thaw ingredients rapidly without compromising quality.

In summary, the Daewoo KOR-61151 and KOR-61155 microwave ovens present an array of features that cater to diverse cooking needs. Their innovative technologies, user-friendly controls, and stylish designs make them valuable additions to any kitchen, balancing efficiency and functionality with ease of use.
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