COMPONENT TEST PROCEDURE

1.High voltage is present at the high voltage terminal of the voltage transformer during any cooking cycle.

2.It is neither necessary nor advisable to attempt measurement of the high voltage.

3.Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor (see page 13).

1. High voltage transformer

(A)Remove connections from the transformer terminals and check continuity.

(B)Normal readings should be as follows:

Secondary winding

Approx. 150Ω ¡ 10%

Filament winding

Approx. 0Ω

Primary winding

Approx. 0Ω

2. High voltage capacitor

(A)Check continuity of capacitor with meter on the highest OHM scale.

(B)A normal capacitor will show continuity for a short time, and then indicate 9MΩ once the capacitor is

charged.

(C)A shorted capacitor will show continuous continuity.

(D)An open capacitor will show constant 9MΩ .

(E)Resistance between each terminal and chassis should be infinite.

3. High voltage diode

(A)Isolate the diode from the circuit by disconnecting the leads.

(B)With the ohmmeter set on the highest resistance scale, measure the resistance across the diode terminals.

Reverse the meter leads and again observe the resistance reading. Meter with 6V, 9V or higher voltage batteries should be used to check the front- back resistance of the diode, otherwise an infinite resistance may be read in both directions. A normal

didoes resistance will be infinite in one direction and several hundred KΩ in the other direction.

4. Magnetron

For complete magnetron diagnosis, refer to “Measure- ment of the Microwave Output Power”. (Page 8) Continuity checks can only indicate and open filament or a shorted magnetron.

To diagnose for an open filament or shorted magnetron,

(A)Isolate magnetron from the circuit by disconnecting the leads.

(B)A continuity check across magnetron filament termi- nals should indicate 0.1ohm or less.

(C)A continuity check between each filament terminal and magnetron case should read open.

5. Fuse

If the fuse in the primary and monitor switch circuit is blown when the door is opened, check the primary and monitor switch before replacing the blown fuse. In case the fuse is blown by an improper switch operation, replace the defective switch and fuse at the same time. Replace just the fuse if the switches operate normally.

CAUTION : REPLACE BLOWN FUSE WITH 15 AMPERE FUSE.

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Daewoo KOR-61151, KOR-61155 service manual Component Test Procedure

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.