CHECK METHOD
(2) When touching “START” pad, oven lamp turn on.
Fan motor and turntable rotate and cook indicator in display comes on.
ƒN
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
CHECK
METHOD
REMEDY
NO.
1
Check the stage (ON, OFF) of the secondary
Replace secondary
Interlock switch by resistance measurement.
interlock switch
POINT
A
B
STAGE
1) DOOR OPEN
OPEN
–5VDC
2) DOOR CLOSED
CLOSE
GND
POINT
A
B
STAGE
RELAY “1” ON
–5VDC
GND
RELAY “1” OFF
GND
-24VDC
POINT
A
STAGE
RELAY “2” ON
–24VDC
RELAY “2” OFF
GND
44
Summary of Contents for KOR-612L0S
Page 44: ...Fig 6 Measurement Point 43...
Page 47: ...46 2 P C B CIRCUIT DIAGRAM L type...
Page 48: ...47 3 COMPONENT INFORMATION 1 Transistor 2 Diode and Zener Diode...
Page 49: ...48 4 PRINTED CIRCUITS BOARD...
Page 53: ...52 EXPLODED VIEW...