5-15
CONDITION
CHECK
RESULT
CAUSE
REMEDY
1. Fuse blows.
Continuity.
No continuity.
Continuity.
Shorted contact at
the primary switch.
Replace fuse,
primary, monitor,
secondary
switches, and
RELAY(RY2) of
P.C.B Assembly.
No continuity.
Normal.
Defective high
voltage capacitor.
Replace high
voltage capacitor.
Fuse blows again
Defective high volt-
age transformer.
Replace high volt-
age transformer.
Malfunction of the
monitor switch.
Replace fuse,
primary, monitor,
secondary
switches, and
RELAY(RY2) of
P.C.B Assembly.
Check continuity
of monitor
switch (with
door closed).
Check continuity
of primary
switch (with
door opened).
Disconnect one
side of the wire
lead connected
from transformer
to the high
voltage
capacitor and
operate the unit.
Replace fuse
Continuity.
Malfunction of
secondary switch.
Replace fuse,
primary, monitor,
secondary
switches, and
RELAY(RY2) of
P.C.B Assembly.
No continuity.
Check continuity
of secondary
switch (with
door opened).
2. Fuse does not
blow.
No continuity.
Continuity.
No continuity.
Defective power
supply cord.
Replace power
supply cord.
Defective
thermostat.
Replace
thermostat.
Check continuity
of thermostat.
Check continuity
of power supply
cord.
(TROUBLE 2) Oven does not operate at all, Display window does not display any figures,
and no input is accepted.
NOTE : All these switches must be replaced at the same time. Refer to page 5-7, 5-8
Содержание MB-309XE
Страница 30: ...6 2 13213A 13552A 15006A 13536A 13581A 14026A 14970A 13720D 13352A DOOR PARTS ...
Страница 31: ...6 3 26638A 23572A 268771 24781M WTP018 WTP028 24510L 250201 24970A CONTROL PANEL PARTS ...
Страница 34: ...6 6 WSZ002 56411A 56324A WSZ002 54810A 56930G 54826A WTP028 WTP006 WTP004 968101 INTERIOR PARTS ...
Страница 36: ...8 1 SCHEMATIC DIAGRAM OF P C B ...
Страница 37: ...8 2 PRINTED CIRCUIT BOARD ...
Страница 38: ...July 1997 Printed in Korea P NO 3828W5S0450 December 1998 P NO 3828W5S0960 Printed in Korea ...
