Daewoo KOG-8A1R5P, Service Manual

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22
(TROUBLE 4) The following visual conditions indicate a probable defective touch control circuit assembly.
1. Incomplete segments
(1) Segments missing
(2) Partical segments missing
(3) Digit flickering other than normal display slight flickering
(4) “ :0” does not display when power is on.
2. A distinct change in the display are not on when they numbers is the
display.
3. One or more digits in the display are not on when they should be.
4. Display indicates a number different from one touched.
5. Specific numbers (for example 2 or 3) will not display when the button
is touched.
6. Display does not count down or up with time cooking or clock opera-
tion.
7. Oven is programable and cooks normally but no display shows.
8. Display obviously jumps in time while counting down.
9. Display counts down noticeably too fast while cooking.
10. Display does not show the time of day when cancel button is touched.
11. Oven lamp and turntable motor do not stop although cooking is finished. Check if the RELAY 2 contacts close if they are
close, replace touch control circuit.
M/W DEF. Grill Combi g
NOTE
Before following the particular steps listed above in the troubleshooting guide for the button of control panel fail-
ure, please check for the continuity of each wire-harness between the P.C.B main-assembly and P.C.B. sub-
assembly.
CONDITION CHECK
Check each button for continu-
ity of the P.C.B sub-assembly
for the following button check
procedure
Malfunction
of the P.C.B
main-assembly
RESULT
Normal
CAUSE REMEDY
Replace the
P.C.B main-
assembly
Malfunction of
the P.C.B
sub-assembly
Abnormal
Replace the
P.C.B
sub-assembly
Display does
not show
programming
at all, even it
button is
pressed.