Safety Precautions For Disassembly And Repair - Daewoo KOR-122M0A Service Manual

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Table of Contents

SAFETY PRECAUTIONS FOR DISASSEMBLY AND REPAIR

– Cautions to be observed when troubleshooting.

Unlike many other appliances, the microwave oven is a high-voltage, high-current equipment. It is

completely safety during normal operation. However, carelessness in servicing the oven can result in

an electric shock or possible danger from a short circuit.

(1) Always remove the power plug from the outlet before servicing.

(2) Use an insulated screwdriver which is attached to iron plate, and wear rubber gloves when

servicing the high voltage side.

(3) Warning about the electric charge in the high voltage capacitor. When inspecting and repairing the

high voltage side, always short the capacitor terminals and make sure of discharge.

1. Check the grounding.

Do not operate on a 2-wire extension cord.

The microwave oven is designed to be used when grounded.

It is imperative, therefore, to makes sure it is grounded properly before begining repaire work.

2. Warning about the electric charge in the high voltage

capacitor.

For about 30 seconds after the operation stops, electric

charge remains in the high voltage capacitor. When

replacing or checking parts, short between oven chassis

and the negative high terminal of the high voltage capacitor,

by using a properly insulated screw driver to discharge.

(4) When the 20 Amp. fuse is blown out due to operation of

the monitor switch, replace primary, secondary, and

monitor switch.

Refer to 18 page for the necessary adjustment.

(5) After repair or replacement of parts, make sure that the

screws are properly tightened, and all electrical

connections are tightened.

(6) Do not operate without cabinet.

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CAUTION:

Service personnel should remove their watches whenever working close to or repairing

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the magnetron.

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WARNING: When servicing the appliance, need a care of touching or replacing high potential parts

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because of electrical shock or exposing microwave. These parts are as follows – H.V.

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Transformer, Magnetron, H.V. Capacitor, H.V. Diode.