5-16
CONDITION
CHECK
RESULT
CAUSE
REMEDY
1. Setting time
does not count
down when
touching START
pad.
2. Fan motor or
oven lamp do
not turn on.
No continuity.
Continuity.
Continuity
Defective PCB
assembly.
Loose connection.
Replace PCB
assembly.
Connect them
tightly.
No continuity
Abnormal
Check fan motor.
Defective fan motor.
Replace fan motor.
Abnormal
Normal
Check oven lamp.
Defective oven lamp.
Replace oven lamp.
Defective
secondary switch.
Replace
secondary switch.
Check continuity
of secondary
switch (with
door closed).
Check the con-
nection between
CN1 connector
and PCB
assembly.
(TROUBLE 3) Display shows all figures set, but oven does not start cooking while desired
program times are set and START pad is touched.
(TROUBLE 4) Oven seems to be operating but little heat is produced in oven load.
NOTE : Simple test of power output-conducted by heating one liter water for one min. if available.
Minimum 8.5°C temperature rise is normal condition.
CONDITION
CHECK
RESULT
CAUSE
REMEDY
Output is low
Lower than 90% of
rating voltage.
Normal
Abnormal
Defective PCB
assembly.
Replace PCB
assembly.
Normal
Abnormal
Measure the
output power.
Defective
magnetron.
Replace
magnetron.
Decrease in power
source voltage
with load.
Suggest customer
contact local
electric power
utility co. or
qualified
electrician.
Check the
power source
voltage.
Disconnect the
wire leads from
relay 2 and
check on and off
time with
multitester.
Содержание MS-1071MC
Страница 29: ...6 2 1002 1003 1008 1004 1000 1005 1006 1007 1001 DOOR PARTS ...
Страница 30: ...6 3 2003 2004 2005 2000 W140 W032 2006 2001 2002 CONTROL PANEL PARTS ...
Страница 31: ...6 4 3006 W101 3023 3002 3021 W081 3014 W094 3024 3025 3013 3020 OVEN CAVITY PARTS ...
Страница 32: ...6 5 4007 W031 4006 W030 4005 4012 4008 W032 4000 4002 4002 4003 4001 4013 4010 4009 SUCTION GUIDE PARTS ...
Страница 33: ...6 6 W067 5001 5002 W067 INTERIOR PARTS ...
Страница 34: ...6 7 W067 W106 6002 6002 6009 6004 6001 6005 6006 6008 6007 W067 W101 BASE PLATE PARTS ...
Страница 35: ...8 2 PRINTED CIRCUIT BOARD ...
Страница 36: ...July 1997 Printed in Korea P NO 3828W5S0547 July 1997 P NO 3828W5S0547 Printed in Korea ...