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7.DISASSEMBLY INSTRUCTIONS
-THE OVEN MUST BE DISCONNECTED FROM THE
ELCTRICAL OUTLET WHEN MAKING REPLACE -
TMENTS, REPAIRS, ADUSTMENT OR CONTINUTY
CHEKS, BEFORE PROCEEDING WITH ANY RE-
PAIR, WORK, WAITE AT LEAST 1 MINUTE, UNTIL
THE CAPACITOR IN THE HIGH VOLTAGE AREA
HAS FULLY DISCHARGED.
A.REMOVING INTERLOCK SWITCH
(See Figure 1 on page 1)
(1) Disconnect all lead wires from the interlock switch.
(2) Remove 2 screws securing the lever stopper.
(3) Remove 1 screw securing switch.
Then pull out the switch.
(4) Make the necessary adustment, and perform a
microwave energy leakage check according to
"1. ADJUSTMENT PROCEDURE FOR SWITCHES"
on page 1. Check proper operation according to
"CHECKOUT PROCEDURE FOR SWITCHES" on
page 6.
B.REMOVING INTERLOCK MONITOR SWITCH AND
DOOR SENSING SWITCH
(See Figure 1 on page 1)
(1) Disconnect all lead wires from the interlock monitor
switch and door sensing switch.
(3) Remove 1 screw securing the these switches.
Then pull out the switches.
(4) Make the necessary adustments or replacement
of the switch by reversing step (2) and check
according to "1. ADJUSTMENT PROCEDURE
FOR SWITCHES" on page 1. Check proper ope-
ration according to "CHECKOUT PROCEDURE
FOR SWITCHES" on page 6.
WHEN REPLACING ANY DOOR MICROSWITCH,
REPLACE ONLY WITH THE SAME SWITCH SPEC-
IFIED ON THE PARTS LIST.
C.REMOVING FUSE
Remove the 10 A fuse with screwdriver.
NOTE
- Whenreplacing the 10 A fuse, be sure to use the
exact repair part.
- If the 10 A fuse blows immediately, check the primary
and secondary interlock switch, tthe relays RL- 3 and
RL-5(on the control circuit board) and the interlock
switch according to "CHECK OUT PROCEDURE
FOR SWITCHES" on page 6. Make sure to check the
microwave energy leakage according to " 1. ADJUST-
MENT PROCEDURE FOR SWITCHES" on page 1,
when the primary and secondary interlock switches,
the relay RL-3 and RL-5 or the interlock monitor switch
is adjusted or replaced.
- If the interlock switch, the relay RL-3 and RL-5 or the
interlock monitor switch operate properly, determine
which of the following is defective:
control circuit board, high voltage transformer, high
voltage capacitor, high voltage diode, fuse diode or
magnetron.
- If the high voltage diode is defective, replace not only
the high voltage diode but also the fuse diode.
D.REMOVING CONTROL CIRCUIT BOARD
(1) Disconnect all connector and lead wires from the
control circuit board.
(2) Remove 2 screws securing the tabs for earting to the
oven cavity.
(3) Remove 2 screw securing the control panel assembly
to the oven cavity.
(4) Push up and then pull out the control panel assembly.
(5) Remove the FPC connector from the connector S101
while pushing up the end of the plastic fastner.
And pull the connector out from S110.
(6) Remove 4 screws securing the control circuit board.
Then lift up the control circuit board its left side and
and take out from the control base.
D.REMOVING TOUCH KEY BOARD
After removing control circuit board;
(1) Release 4 hooks holding the Cover asembly.
(2) Remove the touch key board which is held on the
control base with the adhesive tape from the front of
the control base.
E.REMOVING TIME CONTROLLER
After removing control circuit board;
(1) Pull the control knob out.
(2) Remove 2 screws securing the time controller to the
control base.
F.REMOVING MAGNETRON
(See Figure 11)
(1) Disconnect all lead wires from the thermal protector
and Ceramic resistor.
(2) Remove 3 screws securing the duct for magnetron
to the blower motor complete and magnetron.
(3) Take off the duct for magnetron.
(4) To remove nuts securing magnetron bracket to the
wave guide, insert the long size box wrench in the
10 mm diameter hole located at the parts base of the
rear side as shown in figure 11. Loose the nut.
(5) Take out the magnetron VERY CAREFULLY.
NOTE
- When removing the magnetron, make sure that its dome
does not hit any adjacent parts, or it may be damaged.
- When replacing the magnetron, be sure to install the
magnetron gasket in the correct position and be sure
that the gasket is in good condition.
- After replacing the magnetron, check the microwave
energy leakage to ensure it is below the limit of the
reguration (5 mW/cm
-10-
2
) when measured with a detector.
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