1. Incomplete segments.
• Segment missing.
• Partial segment missing.
• Digit flickering (NOTE: Slight flickering is normal.)
2. Colon does not turn on or blink.
3. A distinct change in the brightness of one or more numbers in display.
4. One or more digits in the display are not lighting.
5. Display indicates a number different from one touched, for example, key in
5
and
3
appears in the display.
6. Specific numbers (for example 7 or 9) will not display when key pad is touched.
7. Display does not count down with time blinking or up with clock operation.
8. Display obviously jumps in time while counting down.
9. Display counts down too fast while cooking.
10. Each indicator light does not turn on after setting cooking cycle.
11. Display time of day does not reappear when cooking is finished.
12. Beep sound is not heard when correct key is touched.
5-14
(TROUBLE 1) The following visual conditions indicate a probable defective control circuit.
CONDITION
CHECK
RESULT
CAUSE
REMEDY
Everything works
as specified.
Still have trouble.
Defective key
membrane
assembly.
Defective PCB
assembly.
Replace key
membrane
assembly.
Replace PCB
assembly.
Check the
connection
between
leadwire
connector and
PCB assembly.
1. Some inputs
cannot be
programmed.
2. Display shows a
number or figure
different from one
touched.
3. Random
programming
when touching
other pads.
4. Display is fixed
at some figure
and can not
accept any
input.
Содержание MC-8483NL
Страница 9: ...SCHEMATIC DIAGRAM 4 3 ...
Страница 33: ... 6 5 WSZ085 43501A 466001 43500A 466003 44510A 466001 LATCH BOARD PARTS EV ...
Страница 35: ... 6 7 63302A 63303A 56170D 647781 WTT030 WSZ002 948502 WTT028 WTT021 BASE PLATE PARTS EV ...
Страница 36: ......