Daewoo KOG-8B5R5S, Руководство по обслуживанию, Страница: 23 / 38

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(TROUBLE 4) The following visual conditions indicate a probable defective touch control circuit assembly.
1. Incomplete segments
(1) Segments missing
(2) Partial segments missing
(3) Digit flickering other than normal display slight flickering
(4) :0 does not display when power is on.
2. Distinct changes in the display are not on when they should be.
3. One or more digits in the display are not on when they should be.
4. Display indicates a number different from one pressed.
5. Specific numbers (for example 2 or 3) will not display when the panel is
pressed.
6. Display does not count down or up with time cooking or clock operation.
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 STOP/CLEAR button is pressed.
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.
NOTE
Before following the particular steps listed above in the troubleshooting guide for the button of control panel
failure, 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
continuity 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.
M/W DEF. Grill Combi g