30
3. Case of no microwave oscillation
1) When touching M/W button, oven lamp turns on and Fan motor and turntable rotate, and cook indicator in
display comes on.
*Cause: RELAY 1 does not operate.
2) When touching M/W button, oven lamp does not turn on and turntable motor does not rotate but cook indicator
in display comes on.
*Cause: RELAY 1 does not operate.
3) When touching M/W button, oven lamp turn on and turns on and fan motor does not rotate but cook indicator in
display comes on.
*Cause: RELAY 6 does not operate.
STATE
RELAY 1 ON
RELAY 1 OFF
POINT A
+5V DC
GND
POINT B
GND
+13V DC
M/W
RY1
B
G5G-1A-DT 12V
D2
1N4148
Q10
A
C106M
8
STATE
RELAY 5 ON
RELAY 5 OFF
POINT A
+5V DC
GND
POINT B
GND
+13V DC
LAMP,
TRAY
RY5
D15
1N4148
B
CS11-12SH 12V
Q7
C106M
A
16
STATE
RELAY 6 ON
RELAY 6 OFF
POINT A
+5V DC
GND
POINT B
GND
+13V DC
FAN
RY6
CS11-12SH 12V
D16
1N4148
B
Q12
C106M
A
18
Summary of Contents for KOC-621Q0S
Page 27: ...26 10 WIRING DIAGRAM...
Page 34: ...33 13 P C B CIRCUIT DIAGRAM...
