13
PRECAUTIONS FOR DISASSEMBLY AND REPAIR
- Cautions to be observed during troubleshooting.
Unlike many other appliances, the microwave oven is a high-current equipment. It is completely safe during normal
operation. However, carelessness in servicing the oven can result in an electric shock or possible dnager 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 ware rubber golves when servicing the high voltage side.
(3) Discharge the high voltage capacitor before touching any oven components or wiring.
1. Check the earthed.
Do not operate with two wire extension cord.
The microwave oven is designed to be used when
earth.
It is imperative, therefore, to make sure it is earthed
properly before begining repair work.
2. Warning about the electric charge in the
high voltage capacitor.
For about 30 seconds after the operation stopped, and
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 12A fuse is blown out due to the operation of the monitor switch;replace primary, secondary interlock
switch and monitor switch.
Refer to the next page for the necessary adjustment.
(5) After repair or replacement of parts, amke sure that the screws are properly tightened, and all electrical
connections are tightened.
(6) Do not operate without cabinet.
CAUTION : Sevice personnel should remove their watches whenever working close to the magnetron or
repairing it.
WARNING : When servicing the appliance, it is needed to give care to touching or replacing high potential parts
because of electrical shock or exposing microwave. These parts are same as follow - H.V.
Transformer, Magnetron, H.V. Capacitor, H.V. Diode.
