Daewoo KQG-868G7S, Service Manual

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19
CONDITION CHECK
Check continuity of magnetron
Defective
magnetron
RESULT
No
Continuity
CAUSE REMEDY
Replace
Outlet has
proper volt-
age Fuse
does not
blow.
CONDITION CHECK
Check continuity of primary
interlock switch
Malfunction of
primary interlock
switch
RESULT
No
Continuity
CAUSE REMEDY
Adjust or
replace
Turn table
motor and
oven lamp do
not turn on
Check continuity of secondary
interlock and D.O.M. switches
Malfunction of
secondary
interlock and
D.O.M. switch
No
Continuity
Adjust or
replace
Check D.C. voltage being supplied
to RELAY (RY2) coil
Defective touch
control circuit
0 V Replace
Faulty contacts of
RELAY (RY2) or
open relay coil
Approx.
-15 VDC
Replace
Check continuity of
noise filter board
Defective line
filter board
No
Continuity
Replace
Check continuity of
power supply cord
Open power supply
cord
No
Continuity
Replace
Defective touch
control circuit
Normal
Replace
NOTE
All these switches must be replaced at the same time, please refer to "Interlock Mechanism And Adjustment".
(TROUBLE 2) Display shows all figures selected, but oven does not start cooking, even though
desired program and time are set and start pad is tapped.