Daewoo KOR-971M0A Service Manual page 62

CHECK METHOD
POINT
STAGE
RELAY "2" ON
RELAY "2" OFF
(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.
RY1
L
R
CHECK METHOD
POINT
STAGE
RELAY "1" ON
RELAY "1" OFF
5) When the door is opened during operation, the Count down time does not stop.
IC1
16
CHECK METHOD
POINT
STAGE
1) DOOR OPENED
2) DOOR CLOSED
CHECK NO.
1
A
-24VDC
GND
D9
-24V
A
-5VDC
GND
-5V
B
R8
R9
C2
A
OPEN
CLOSE
Check the stage (ON,OFF) of the secondary
Interlock switch by resistance measurement.
Q3
B
B
GND
GND
D6
SECONDARY
INTERLOCK
SWITCH
B
-5VDC
GND
METHOD
60
A
IC1
R10
CN1
A
REMEDY
Replace secondary
interlock switch.
18