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.
5-12
(TROUBLE 1) The following visual conditions indicate a probable defective control circuit.
CONDITION
CHECK
RESULT
CAUSE
REMEDY
1. No input can be
programmed.
Continuity
No continuity
Defective PCB
assembly.
Loose
connection.
Replace PCB
assembly.
Connect them
tightly.
Check the conn-
ection between
membrane key
assembly and
PCB assembly.
2. Some inputs
cannot be
programmed.
3. Display shows a
number or figure
different from one
touched.
4. Random
programming
when touching
other pads.
5. Display is fixed
at some figure
and can not
accept any
input.
Everything works
as specified.
Still have trouble.
Defective key
membrane
assembly.
Defective PCB
assembly.
Replace key
membrane
assembly.
Replace PCB
assembly.
Replace key
membrane
assembly and
check operation.
Summary of Contents for NN-S432BL
Page 27: ...6 2 13213A 13552A 15006A 13581A 13536A 14026A 14970A 13352A 13720D DOOR PARTS ...
Page 28: ...6 3 24781M 26638A 23572A 268711 WTT028 CONTROLLER PARTS ...
Page 29: ...6 4 33052A 948502 36549S WTP013 33390G WTT020 WTT010 WSZ185 33112U 35889A OVEN CAVITY PARTS ...
Page 30: ...6 5 WSZ085 466002 466003 466001 44510A 43500A LATCH BOARD PARTS ...
Page 32: ...6 7 WTT021 63303A 63302A 56170D WSZ002 948503 WTT028 647781 BASE PLATE PARTS ...
Page 33: ...8 2 PRINTED CIRCUIT BOARD ...