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COMPONENTS
RELAY 3,4, OF P.C.B
(Disconnect the 7 pin
connector from P.C.B)
See Schematic Dagram on
page 9)
RELAY 1,2,3 OF P.C.B
(Wire leads removed.)
RY1 : Microwave
RY2 : Convection
RY3 : Turn Table,
Fan Motor,
Roti-Motor
(For MC-785BC only)
Oven Lamp
RY4 : Circulation Motor
RY5 : Grill
MEMBRANE KEY
NOTE : A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS
SERVICED FOR ANY REASON.
MAKE SURE THE WIRE LEADS ARE CORRECT POSITION.
WHEN REMOVING THE WIRE LEAD FROM THE PARTS, BE SURE TO GRASP THE
CONNECTOR, NOT THE WIRES.
TEST PROCEDURE
1
CN2
3
5
7
Relay 3
Membrane
Panel
1
2
3
4
5
6
7
8
9
10
11
22
Relay 4
Relay 2
Relay 5
Relay 1
Check continuity between
switch terminals, by pressing an
appropriate pad on key board.
P.C.B
The contacts assignment of the
1
respective pads on the key
2
3
board is as shown left figures.
4
5
6
7
8
9
10
11
RESULTS
Cooking Start
OFF
Cooking Start
OFF
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