Daewoo KOT-150S0A, Руководство по обслуживанию, Страница: 50 / 72

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5)When the door is opened during operation, the Count down timer does not stop.
- CHECK METHOD
6) When the digital clock does not operate properly.
- CHECK METHOD
If clock does not keep exact time, you must check resistor R20, transistor Q6
STAGE POINT
1) DOOR OPEN
2) DOOR CLOSED
A
OPEN
CLOSED
B
+5VDC
GND
CHECK NO. METHOD REMEDY
1
Check the stage (ON, OFF) of the secondary interlock Replace secondary interlock switch.
switch by resistance measurement.
POINT WAVE FORM
A
B
T: 16.67 ms
T: 16.67 ms (60 Hz)