COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
WARNING: Avoid possible exposure to microwave energy. Please follow the instructions below before operating the oven.
1.CARRY OUT 3D CHECKS.
2.Make sure that a definite” click” can be heard when the microwave oven door is unlatched. (Hold the door in a closed position, then pull the door release lever with one hand, this causes the latch leads to rise, it is then possible to hear a “click’ as the door switches oper- ate.)
3.Visually check the door and cavity face plate for damage (dents, cracks, signs of arcing etc.).
Carry out any remedial work that is necessary before operating the oven.
Do not operate the oven if any of the following conditions exist;
1.Door does not close firmly.
2.Door hinge, support or latch hook is damaged.
3.The door gasket or seal or damaged.
4.The door is bent or warped.
5.There are defective parts in the door interlock system.
6.There are defective parts in the microwave generating and transmission assembly.
7.There is visible damage to the oven.
Do not operate the oven:
1.Without the RF gasket (Magnetron).
2.If the wave guide or oven cavity are not intact.
3.If the door is not closed.
4.If the outer case (cabinet) is not fitted.
Please refer to ‘OVEN PARTS, CABINET PARTS, DOOR PARTS’, when carrying out any of the following removal procedures:
OUTER CASE REMOVAL
To remove the outer case, proceed as follows.
1.Disconnect oven from power supply.
2.Open the oven door and wedge it open.
3.Remove the two (2) screws from the lower portion of the rear cabinet and lower left portion of the oven cabinet back side using by special screw drive (Type; LHSTIX
4.Remove the screws from rear and along the side edge of case.
5.Slide the entire case back about 3cm to free it from retaining clips on the cavity face plate.
6.Lift the entire case from the oven.
7.Remove the screws holding the rear cabinet to the oven.
8.Remove the rear cabinet.
9.Discharge the HV capacitor before carrying out any further work.
10.Do not operate the oven with the outer case removed. N.B.; Step 1,2 and 9 form the basis of the 3D checks.
CAUTION:DISCHARGE HIGH VOLTAGE CAPACI- TOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING.
Special screw
Screw Driver
(Type; LHSTIX
HIGH VOLTAGE COMPONENTS REMOVAL
(High Voltage Capacitor and High Voltage Rectifier Assembly)
To remove the components, proceed as follows.
1.CARRY OUT 3D CHECKS.
2.Remove two (2) screws holding earth side terminals of high voltage rectifier assemblies.
3.Disconnect all the leads and terminals of high voltage rectifier assembly from high voltage capacitor.
4.Remove two (2) screws holding capacitor holder to the right side of oven cavity and remove the capacitor holder.
5.Now, high voltage rectifier assembly should be free.
CAUTION
1.DO NOT REPLACE ONLY HIGH VOLTAGE REC- TIFIER. WHEN REPLACE IT, REPLACE HIGH VOLTAGE RECTIFIER ASSEMBLY.
2.WHEN REPLACING HIGH VOLTAGE RECTIFIER ASSEMBLY, ENSURE THAT THE CATHODE (EARTH) CONNECTION IS SECURELY FIXED TO THE CHASSIS WITH A EARTHING SCREW.
6.Now, the two (2) high voltage capacitors are free.
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