Emerson MW9107W - Page 28

27
- Check method
2) When touching START pad, oven lamp turns on.
Fan motor and turntable rotate and cook indicator in display comes on.
* Cause : RELAY 1 does not operate.
- Check method
5. When the door is opened during operation, the count down timer does not stop.
- Check method
STATE
POINT
A
RELAY 2 ON GND
RELAY 2 OFF +12VDC
D8
1N4002A
B
Q11 KRC106M
A
39
MGT RY
IC1
2
A
B
C2
104
V1
R16
10K
R15
D6
1N4148M
YW396-02V
CN1(D.O.M)
C1
473
R17
1K
1K
37
DOM
IC1
1
STATE
POINT
AB
RELAY 1 ON +5VDC GND
RELAY 1 OFF GND +12VDC
STATE
POINT
AB
1) DOOR OPEN OPEN 5VDC
2) DOOR CLOSED CLOSE GND
CHECK NO METHOD REMEDY
1 Check the stage(ON,OFF) of the secondary interlock switch by Replace secondary interlock
resistance measurement. switch.