Daewoo KOC-984T Service Manual page 34

PRINTED WIRING BOARD
7. Case of no stopping of the count down timer
When the door is opened during operation, the count down timer does not stop.
• Check method
STAGE
D oor opened
D oor closed
NOTE
C heck the state (ON , O FF) of the secondary interlock sw itch by resistance m easurem ent.
8. Case of appearring Err6 on the display
• Check method
POINT
A
B
C
NOTE
If clock does not keep exact tim e, you m ust check
D iode D 1 & Transistor Q 1
POIN T A
O pen
C losed
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KO C-984T
+5 V D C
G N D
KO C-984T
WAVEFORM
POINT B