5-14
CONDITION
CHECK
RESULT
CAUSE
REMEDY
1. Fuse blows.
Continuity.
No continuity.
Continuity.
Shorted contact at
the primary switch.
Replace primary
and monitor
switches.
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 primary
and monitor
switches.
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
(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 5-6, 5-7
2. Fuse does not
blow.
No continuity.
No continuity.
Replace power
supply cord.
Defective mag-
netron thermostat.
Defective power
supply cord.
Replace mag-
netron thermostat.
Check continuity
of magnetron
thermostat.
Check continuity
of power supply
cord.
Continuity.
Summary of Contents for MS-1947C
Page 9: ...SCHEMATIC DIAGRAM 4 3 6 ...
Page 29: ...6 2 13536A 13581A 14970A 14026A 13552A 13213A 14890A 13720D DOOR PARTS EV ...
Page 30: ...6 3 23506A 23572A 268711 24781M WTT021 CONTROL PANEL PARTS EV ...
Page 31: ...6 4 33390G WTT021 33112U WTP013 36549S 33052A WTT010 35889A OVEN CAVITY PARTS EV ...
Page 32: ...6 5 466003 466001 43501A 43500A 466001 WSZ085 44510A LATCH BOARD PARTS EV ...
Page 34: ...6 7 56170D 63302A WSZ002 WTT021 65006B 63303A BASE PLATE PARTS EV ...
Page 35: ......
