Daewoo KOR-122M0A Service Manual page 34

(TROUBLE 2) Digital readout display does not show programming, even if the membrane keyboard
is programmed by touching proper pads.
Condition
Display does not
show programming
at all,even if
keyboard is
touched
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NOTE: Before following the particular steps listed above in the trouble shooting guide for the
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membrane keyboard, failure, please check for the continuity of each wire-harness between
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the membrane keyboard and control box assembly.
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MEMBRANE KEYBOARD CHECK PROCEDURE
1. Check the pad
KOR-122M0A/M1A
A
B
C
D
E
F
G
H
I
J
K
PCB Termination
Check
Check each pad for
continuity of the
membrane keyboard
for the following
keyboard check
procedure
1
2
3
4
5
6
7
8
9
10
11
PCB Connector
Result
Normal
Malfunction
of touch
control
circuity of
control box
sub-assembly
Abnormal
Malfunction
of the memb-
rane keyboard
Fig. 7
33
Cause Remedy
Replace
control
box sub-
assembly
Replace the
membrane
keyboard
STAGE DEFROST AUTO
1 2 WEIGHT TIME START
LOCK NO CUPS oz lb
Auto Cook
MENU WEIGHT
1.Baked Potato
2.Fresh Vegetable
3.Soup
4.Fish Fillets
5.Meat Loaf
MORE LESS
POPCORN MUFFIN BEVERAGE
FROZEN PIZZA DINNER PLATE
SPEEDY
MICROWAVE OVEN KOR-122M
COOK
Clock/
Auto Defrost Power
Auto Start
1 2 3 4 5
6 7 8 9 0
STOP/CLEAR START
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