36
4) When there is no microwave oscillation.
(1) When touching “M/W” button, oven lamp turns on.
Fan motor and turntable motor rotate and cook indicator in display comes on.
* Cause : Relay 3 (RY3) dose not operate.
CHECK METHOD
(2) When touching “M/W” button, oven lamp dose not turn on.
Turntable motor dose not rotate, but cook indicator in display comes on.
* Cause : Relay 4 (RY4) dose not operate.
CHECK METHOD
(3) When touching “M/W” button, oven lamp turns on.
Fan motor dose not rotate, but cook indicator in display comes on.
* Cause : Relay 5 (RY5) dose not operate.
POINT
A
B
STAGE
RY3 “ON”
-
5VDC
GND
RY3 “OFF”
GND
-
12VDC
POINT
A
B
STAGE
RY4 “ON”
-
5VDC
GND
RY4 “OFF”
GND
-
12VDC
A
40
Q7 KRA106M
B
D3
1N4148
-12V
RY3
G5J-1-TP-M-DT
MAGNETRON
A
41
Q8 KRA106M
B
-12V
D4
1N4148
RY4
G5B-1
TRAY MOTOR, LAMP
A
42
Q9 KRA106M
B
-12V
D5
1N4148
RY5
G5B-1
FAN MOTOR