Daewoo KOR-616T2S, Service Manual

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2) Display prolems
NO. CAUSE MEASUREMENT RESULT REMEDY
1 Poor contact between 1. Check the voltage of PIN 2.6 VAC Fix the Pin 1 &
P.C.B and display 1 & PIN 25. 25 on the
filament. P.C.B.
2 The Display has some Refer to “The display Replace P.C.B.
troubles in its segment trouble shooting data” assembly.
3 Loss of vacuum in the White Replace P.C.B
display. spot is generated on assembly.
the display
TROUBLE DISPLAY NAME & PIN NO. MICOM OUTPUT IN PIN NO.
TIME DEFROST, g do not come on GRID 1 (G1), 21 10
WEIGHT DEFROST, WATT do not come on. GRID 2 (G2), 17 6
QUANTITY does not come on GRID 3 (G3), 14 3
STAGE 2,AUTO COOK do not come on. GRID 4 (G4), 20 2
STAGE 1, LOCK do not come on. GRID 5 (G5), 4,7 1
SEGMENT, “a” does not come on from G1 to G5. SEGMENT d, 19 8
SEGMENT, “b” does not come on from G1 to G5. SEGMENT e, 18 7
SEGMENT, “c” does not come on from G1 to G5. SEGMENT f, 16 5
SEGMENT, “d” does not come on from G1 to G5. SEGMENT a, 23 12
SEGMENT, “e” does not come on from G1 to G5. SEGMENT b, 22 11
SEGMENT, “f” does not come on from G1 to G5. SEGMENT c, 20 9
SEGMENT, “g” does not come on from G1 to G5. SEGMENT g, 15 4
DEFROST, QUANTITY, STAGE2, STAGE1 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
37
MICOM
RY2
D9
-24V
Q12
A
B
Stop Defrost
1 2 Weight Quantity Time
Lock Auto cook Watt g
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.