R-20A1(S)VN
10 – 1
R218L(W)
CHAPTER 10.
COMPONENT REPLACEMENT AND ADJUSTMENT PROCE-
DURE
[1] BEFORE OPERATING
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in severe, possibly fatal,
electric shock.
(Example)
WARNING:
Avoid possible exposure to microwave energy. Please follow the instructions below before operating
the oven.
1) Disconnect the power supply cord.
oven door is unlatched. (Hold the door in a closed position with one
hand, then push the door open button with the other, this causes
the latch leads to rise, it is then possible to hear a “click” as the
door switches operate.)
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;
2) Door hinge, support or latch hook is damaged.
3) The door gasket or seal is 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 trans-
mission 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.
To prevent an electric shock, take the following manners.
1. Before wiring,
1) Disconnect the power supply cord.
2) Open the door and block it open.
3) Discharge the high voltage capacitor and wait for 60 seconds.
2. Don't let the wire leads touch to the following parts;
1) High voltage parts:
Magnetron, High voltage transformer, High voltage capacitor,
y.
2) Hot parts:
Oven lamp, Magnetron, High voltage transformer and Oven
cavity.
3) Sharp edge:
plate.
4) Movable parts (to prevent a fault)
Fan blade, Fan motor, Turntable motor and Switch.
3. Do not catch the wire leads in the outer case cabinet.
4. Insert the positive lock connector certainly until its pin is locked and
are pulled.
5. To prevent an error function, connect the wire leads correctly, refer-
ring to the Pictorial Diagram.
Please refer to ‘OVEN PARTS, CABINET PARTS, CONTROL PANEL PARTS, DOOR PARTS’, when carrying out any of the following removal proce-
dures:
[2] OUTER CASE REMOVAL
To remove the outer case, procedure as follows.
1. Disconnect the oven from power supply.
2. Open the oven door and wedge it open.
3. Remove the two (2) screws from right side of the outer case cabi-
net.
om 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. Discharge the H.V. capacitor before carrying out any further work.
8. Do not operate the oven with the outer case removed.
NOTE: Step 1, 2 and 7 form the basis of the 3D checks.
CAUTION: DISCONNECT OVEN FROM POWER SUPPLY BEFORE
REMOVING OUTER CASE.
WARNING AGAINST HIGH VOLTAGE:
WARNING FOR WIRING
REMEMBER TO CHECK 3D
1) Disconnect the supply. 3)Discharge high voltage capacitor.
2)Door opened, and wedged open.
