Daewoo KOC-972T0S, Service Manual, Page: 49 / 53

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
8. Case of appearring Err6 on the display
•
Check method
KO C-972T/982T KO C-983T/984T/985T
STAGE POIN T A POINT B
D oor opened O pen +5 V D C
D oor closed C losed G N D
KO C-972T/982T KO C-983T/984T/985T
POINT W AVEFORM
A
B
C
If clock does not keep exact tim e, you m ust check D iode D 1 & Transistor Q 2 (K O C-972T /982T ),
D iode D 1 & Transistor Q 1(K O C -984T /985T ).
NOTE
C heck the state (O N , O F F ) of the secondary interlock sw itch by resistance m easurem ent.
NOTE