5-16
CONDITION
CHECK
RESULT
CAUSE
REMEDY
No microwave
oscillation.
No continuity.
Continuity.
Defective P.C.B
assembly
Replace P.C.B
assembly
Disconnect the
wire leads from
relay 2 and
check continuity
of relay2.
(Operate the
unit)
Abnormal
normal
Defective high
voltage
transformer.
Replace high
voltage
transformer .
Check H.V.
transformer.
normal
normal
Abnormal
Defective high
voltage Diode.
Replace high
voltage Diode.
Check H.V.
diode.
Abnormal
Defective high
voltage capacitor.
Replace high
voltage capacitor.
Check H.V.
capacitor.
Abnormal
Defective
magnetron.
Replace
magnetron .
Check
Magnetron.
(TROUBLE 5) No microwave oscillation even though oven lamp and fan motor run
(Display operates properly)
Содержание MB-387W
Страница 9: ...SCHEMATIC DIAGRAM 4 3 ...
Страница 29: ...6 2 13581A 14970A 14026A 13552A 13213A 14890A 13720D 13536A DOOR PARTS EV ...
Страница 30: ...6 3 268711 24781S 23790D 23572A 250202 249402 249401 250201 250203 WTP004 CONTROL PANEL PARTS EV ...
Страница 32: ...6 5 LATCH BOARD PARTS 43500A 466001 466003 466001 44510A WSZ085 EV ...
Страница 34: ...6 7 56170D 63302A 65006B WTT021 WSZ002 63303A BASE PLATE PARTS EV ...
Страница 35: ...8 1 SCHEMATIC DIAGRAM OF P C B ...
Страница 36: ...8 2 PRINTED CIRCUIT BOARD ...
Страница 37: ......