Daewoo KOM-9F2CKS, Руководство по обслуживанию, Страница: 23 / 40

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(TROUBLE 4) The following visual conditions indicate a probable defective touch control circuit or membrane switch
assembly
1. Incomplete segments,
1) Segments missing.
2) Partial segments missing.
3) Digit flickering other than normal display slight flickering.
2. The display does not show the contents correctly when you touch a
pad.
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 panel is touched.
6. Display does not count down or up with time cooking or clock operation.
7. Oven is programmable and cooks normally but no display shows.
8. Display obviously jumps in time while counting down.
9. Display counts down noticeable too fast while cooking.
NOTE
Before following the particular steps listed above in the troubleshooting guide for the touch pad, failure, please
check for the continuity of each wire-harness between the touch pad and P.C.B. assembly.
CONDITION CHECK
Check each control on touch
pad
Malfunction
of control circuit
board
RESULT
Normal
CAUSE REMEDY
Replace
control circuit
board
Malfunction
of the membrane
keyboard
Abnormal
Replace the
membrane
keyboard
Display does
not show
programming
at all, even if
panel is
touched.