3) Display problems
The display trouble shooting data
4) When there is no microwave oscillation.
(1) When touching “START” pad, oven lamp does not turn on.
Fan motor and turntable do not rotate, but cook indicator in display comes on.
ƒN
Cause: RELAY “2” does not operate.
STAGE1, LOCK don’t come on.
GRID1 (G1), 10
30
STAGE2, NO don’t come on.
GRID2 (G2), 11
29
WEIGHT DEFROST, CUPS don’t come on.
GRID3 (G3), 14
26
TIME DEFROST doesn’t come on.
GRID4 (G4), 12
28
AUTO START, g don’t come on.
GRID5 (G5), 13
27
SEGMENT “a” doesn’t come on from G1 to G5.
SEGMENT d, 4
39
SEGMENT “b” doesn’t come on from G1 to G5.
SEGMENT e, 3
40
SEGMENT “c” doesn’t come on from G1 to G5.
SEGMENT f, 2
41
SEGMENT “d” doesn’t come on from G1 to G5.
SEGMENT a, 7
36
SEGMENT “e” doesn’t come on from G1 to G5.
SEGMENT b, 6
37
SEGMENT “f” doesn’t come on from G1 to G5.
SEGMENT c, 5
38
SEGMENT “g” doesn’t come on from G1 to G5.
SEGMENT g, 1
42
LOCK, NO/CUPS, g don’t come on.
UPPER BAR h, 10
33
STAGE1, STAGE2, TIME DEFROST,
LOWER BAR i, 8
34
WEIGHT DEFROST, AUTO START don’t come on.
TROUBLE
NO.
CAUSE
MEASUREMENT
RESULT
REMEDY
1
Defective Display
Refer to “The display
Replace P.C.B.
trouble shooting data”
assembly.
below.
42
DISPLAY NAME
& PIN NO.
MICOM OUTPUT
IN PIN NO.
Summary of Contents for KOR-612L0S
Page 44: ...Fig 6 Measurement Point 43...
Page 47: ...46 2 P C B CIRCUIT DIAGRAM L type...
Page 48: ...47 3 COMPONENT INFORMATION 1 Transistor 2 Diode and Zener Diode...
Page 49: ...48 4 PRINTED CIRCUITS BOARD...
Page 53: ...52 EXPLODED VIEW...