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2.SPECIFICATIONS
Microwave output ................. 1,900W to 190W
Frequency ............................ 2,450MHz
Power supply ....................... 220-230V, 50Hz
Rated current ....................... 12.8 A
Safety Device .......................
Thermal limitter (Magnetron) 150°C Open
Thermal limitter (Duct)..........140°C Open
Thermistor (Magnetron) .... ...165°C Open
Thermistor(Duct) .............. ...120°C Open
Fuse (Cartridge Type) ...... ...250V 10A x2
Micro switch, Relay
Max. input time.......Electronic Digital,up to
Manual 10min.
Memory 6min.(power level 10-6)
Overall Dimensions ......... 422(W)x540(D)x335(H) mm
Oven cavity size .............. 330(W)x330(D)x230(H) mm
Effective Capacity of Oven Cavity..........19.1 liters
Net weight ............................ ...............32Kg
3. POWER OUTPUT MEASUREMENT
(1) Prepare 1000±5g tap water.
(2) Adjust water temperature to 10±2°C.
(3) Pour water into a container made of borosilicate
Glass, 190mm outer diameter cylinder, maximum
3mm thickness.
Note : Use the container kept on the room tem-
perature.
(4) Place the container on the center of oven cavity.
(5) Set the heating time for 26 seconds and rating full
power and then start oven.
(6) Take the container out immediately when heating
time is up.
(7) Stir water for making even water temperature in
the container.
(8) Measure water temperature.
Water temperature rise shall be 8 to 12°C.
4. PRECAUTIONS AND REPAIR SERVICE TIPS
PRELIMINARY
A. SINCE NEARLY 4,000 VOLTS EXISTS IN SOME
CIRCUITS OF THIS MICROWAVE OVEN, RE-
PAIRS SHOULD BE CARRIED OUT WITH
GREAT CARE.
B. TO AVOID POSSIBLE EXPOSURE TO MICRO-
WAVE ENERGY LEAKAGE, THE FOLLOWING
PRECAUTIONS MUST BE TAKEN BEFORE SER-
VICING.
Primary interlock switch
Interlock monitor switch
Door sensing switch and
Relay RL-3 and 4
30min.(power level 5-0)
(1) Before the power is applied.
(a) Open and close door several times to make sure
the door interlock switch and interlock monitor
switch operation properly. (Listen for the click-
ing sound from switches.)
Make sure the interlock monitor switch is closed
after the latch interlock switch is open when the
door is opened. (See pages 1 and 6)
(b) Make sure the perforated screen and the choke
dielectric of the door are correctly mounted.
(2) After the power is applied.
(a) Open and close the door to see if the interlock
mechanism operates properly.
(b) Check microwave energy leakage with a leak-
age detector and confirm the energy leakage is
below 5mW/cm².
(3) Do not operate the unit until it is completely re-
paired if any of the following conditions exists.
(a) Door is not closed firmly against the cavity front.
(b) The hinge is broken.
(c) The choke dielectric or the door seal is dam-
aged.
(d) The door is bent or warped, or there is any other
visible damage to the oven that may cause mi-
crowave energy leakage.
Note: Always keep the seal clean.
(e) Make sure that there are no defective parts in
the interlock mechanism.
(f) Make sure that there are no defective parts in the
microwave generating and transmission assem-
bly.
(especially wave guide)
(4) Following items should be checked after the unit
is repaired.
(a) The interlock monitor switch is connected cor-
rectly and firmly.
(b) The magnetron gasket on the magnetron is prop-
erly positioned.
(c) Wave guide and oven cavity are intact. (No leak-
age of microwave energy).
(d) The door can be properly closed and the safety
switches work properly.
(e) The oven must be stopped when the door is
opened or the time is up.
The oven must not be operated with any of the above
components removed or bypassed.
HINT FOR LAMP CHANGE
Before removing the bulb access panel, pull out the
main plug. Change the faulty bulb and secure the bulb
access panel. Plug the cord back in and check op-
eration.
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