Daewoo KOG-366T0S, Service Manual, Page: 43 / 56

3) Display problems
Display trouble shooting data
4) When there is not microwave oscillation.
(1) When pressing “START” button, oven lamp does not turn on.
Fan motor and turntable motor do not rotate, but cook indicator in display comes on.
* Cause: RELAY “2” does not operate.
TIME DEFROST, g do not come on GRID 1(G1), 21 10
WEIGHT DEFROST, WATT do not come on. GRID 2(G2), 17 6
COMBI does not come on GRID 3(G3), 14 3
GRILL, AUTO COOK do not come on. GRID 4(G4), 20 2
M/W, LOCK do not come on. GRID 5(G5), 4, 7 1
SEGMENT, “a” does not come on form G1 to G5. SEGMENT d, 19 8
SEGMENT, “b” does not come on form G1 to G5. SEGMENT e, 18 7
SEGMENT, “c” does not come on form G1 to G5. SEGMENT f, 16 5
SEGMENT, “d” does not come on form G1 to G5. SEGMENT a, 23 12
SEGMENT, “e” does not come on form G1 to G5. SEGMENT b, 22 11
SEGMENT, “f” does not come on form G1 to G5. SEGMENT c, 20 9
SEGMENT, “g” does not come on form G1 to G5. SEGMENT g, 15 4
DEFROST, COMBI, GRILL, M/W do not come on. UPPER BAR l,5 63
LOCK, AUTO COOK, WATT, g do not come on. LOWER BAR h,i,j,k,6,8,9,11 62
NO. CAUSE MEASUREMENT RESULT REMEDY
1 Poor contact between Check the voltage Fix the PIN 1 & 25
P.C.B. and display of PIN 1 & PIN 25. 2.6 VAC on the P.C.B.
filament.
2 The Display has some Refer to “The display Replace P.C.B.
troubles in its segment. trouble shooting data” assembly.
below.
3 Loss of vacuum in White spot is Replace P.C.B.
the display generated assembly
on the display
42
TROUBLE
DISPLAY NAME
& PIN NO.
MICOM OUTPUT
IN PIN NO.
MICOM
A
B
37
Q12
D9
RY2
-24V
White spot