Daewoo KOG-846T Service Manual

5049
CHECK METHOD
(2) When pressing “ ” button, oven lamp turns on.
Fan motor and turntable motor rotate and cook indicator in display comes on.
* Cause : RELAY “1” does not operate.
CHECK METHOD
5) When there is not Grill heat.
When pressing “ ” button, oven lamp turns on.
Fan motor and turntable and cook indicator in display comes on
* Cause : RELAY “3” does not operate.
CHECK METHOD
POINT
AB
STAGE
RELAY “2” ON +5VDC GND
RELAY “2” OFF GND -16VDC
POINT
AB
STAGE
RELAY “1” ON +-5VDC GND
RELAY “1” OFF GND -16VDC
POINT
AB
STAGE
RELAY “3” ON +-5VDC GND
RELAY “3” OFF GND -16VDC
RY1
RELAY "1"
Q5
R24
B
D6
R30
-16V
R14
MICOM
36
A
RY3
RELAY "3"
Q7
R26
B
D8
R32
-16V
R16
MICOM
38
A
3) Display problems
Display trouble shooting data
4) When there is not microwave oscillation.
(1) When pressing “ ” 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.
NO. CAUSE MEASUREMENT RESULT REMEDY
1
2
3
Poor contact between
P.C.B and display
filament.
The Display has some
troubles in its segment
or grid.
Loss of vacuum in the
display.
1. Check the voltage of PIN
1 & PIN 25.
Refer to “The display
trouble shooting data”
below.
2.6 VAC
White
spot is generated on
the display
Fix the PIN 1 & 25
on the P.C.B.
Replace P.C.B.
assembly.
Replace P.C.B.
assembly.
TROUBLE
TIME DEFROST, g do not come on
WEIGHT DEFROST, WATT do not come on.
COMBI does not come on.
GRILL, AUTO COOK do not come on.
M/W, LOCK do not come on.
SEGMENT, “a” does not come on from G1 to G5.
SEGMENT, “b” does not come on from G1 to G5.
SEGMENT, “c” does not come on from G1 to G5.
SEGMENT, “d” does not come on from G1 to G5.
SEGMENT, “e” does not come on from G1 to G5.
SEGMENT, “f” does not come on from G1 to G5.
SEGMENT, “g” does not come on from G1 to G5.
DEFROST, COMBI, GRILL, M/W do not come on.
LOCK,AUTO COOK, WATT, g do not come on.
DISPLAY NAME & PIN NO.
GRID 1 (G1), 21
GRID 2 (G2), 17
GRID 3 (G3), 14
GRID 4 (G4), 10
GRID 5 (G5),4,7
SEGMENT d, 19
SEGMENT e, 18
SEGMENT f, 16
SEGMENT a, 23
SEGMENT b, 22
SEGMENT c, 20
SEGMENT g, 15
UPPER BAR l,5
LOWER BAR h,i,j,k,6,8,9,11
MICOM OUTPUT IN PIN NO.
7
3
10
11
12
1
2
4
9
8
6
5
63
62
RY2
RELAY "2"
Q6
R25
B
D7
R31
-16V
R15
MICOM
37
A
white spot

Daewoo KOG-846T Specifications

General

Brand	Daewoo
Model	KOG-846T
Category	Microwave Oven
Language	English