Daewoo KOR-612L0S, Service Manual

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26
– Cautions to be observed when trouble shooting.
Unlike many other appliances, the microwave oven is a high-voltage, high-current equipment. It is com pletely
safety during normal operation. However, carelessness in servicing the oven can result in an electeric shock or
possible danger from a short circuit.
You are asked to observe the following precautions carefully.
(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 repair work.
2. Warning about the electric charge in the high
voltage capacitor.
For about 30 seconds after the operation stops, and elec-
tric charge remians in the high voltage capacitor. When
replacing or checking parts, short between oven chassis
and the negative high terminal of the high voltage capaci-
tor, by using a properly insulated screw driver to dis-
charge.
(4) When the 12 Amp. fuse is blown out to operation of the monitor switch; replace primary, and monitor switch.
Refer to 20 page for the necessary adjustment.
(5) After repair or replacement of parts, make sure that the screws are properly tightened, and all electrical con-
nections are tightened.
(6) Do not opertate without cabinet.
SAFETY PRECAUTIONS FOR DISASSEMBLY AND REPAIR
CAUTION:
Service personnel should remove their watches whenever working close to or repairing the mag-
netron.
WARNING:
When servicing the appliance, need a care of touching or replacing high potential parts because
of electrical shock of exposing microwave. These parts are as follows–H.V. Thansformer,