Daewoo KOG-8465, Руководство по обслуживанию, Страница: 13 / 37

13
PRECAUTIONS FOR DISASSEMBLY AND REPAIR
- Cautions to be observed when trouble shooting.
Unlike many other appliances, the microwave oven is high-voltage, high-current equipment. It is completely safe
during normal operation. However, carelessness in servicing the oven can result in an electric 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 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 earthing.
Do not operate on a 2-wire extension cord. The
microwave oven is designed to be used when earthed.
It is imperative, therefore, to makes sure it is earthed
properly before begining repair work.
2. Warning about the electric charge in the
high voltage capacitor. (Refer to Fig. 1)
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 fuse(normal blow type) is blown out due to the operation of the monitor switch; replace primary,
secondary interlock switch and monitor switch.
Refer 11~12 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.
CAUTION
: Service personnel should remove their watches whenever working close to or repairing the
magnetron.
WARNING
: When servicing the appliance, care is required when touching or replacing high potential parts due
to electrical shock or exposure of microwave energy. These parts are as follows-H.V. transformer,
Magnetron, H.V. Capacitor, H.V. Diode.
Fig.1