Sanyo EM-F3400SW - Manual (Page 11)

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STEPSTEPSTEPSTEPSTEP
SEQUENCESEQUENCESEQUENCESEQUENCESEQUENCE
Resistance
OK.
Check H.V
. Capacitor or H.V
.
Diode with an Ohm-Meter after removing lead wir
es.
(See page 5)
Normal
resistance
No
operation.
Check operation of Blower Motor when
“
ST
AR
T”
key
is touched.
Normal operation.
Check r
esistance of each
winding after removing lead wir
es. (See page 4)
H.V
. T
ransfor
mer
.
Resistance
incorr
ect.
Nor
mal H.V
.
Capacitor or H.V
. Diode.
Replace H.V
.
Transfor
mer
.
Nor
mal H.V
.
Transfor
mer
.
(4) PROBLEM Low microwave power output.
b a
Replace
Magnetron.
Normal Magnetron.
Defective
H.V
. Capacitor
or H.V
. Diode.
Replace H.V
.
Capacitor or
H.V
. Diode.
Nor
mal H.V
.
Capacitor or H.V
. Diode.
Normal operation.
Replace Ther
mal Pr
otector
for Magnetron or Ther
mal
Pr
otector for Cavity.
Nor
mal ther
mal protector for
Magnetr
on or Ther
mal
Pr
otector for Cavity.
Temporarily short acr
oss ter
minals of
Ther
mal Protector for
Magnetr
on or Ther
mal
Pr
otector for Cavity
by using jumper lead.
No
operation.
Measure r
esistance
of Blower Motor
Approx. 63 ohms.
Replace Contr
ol
Cir
cuit Boar
d.
Nor
mal Control
Cir
cuit Boar
d.
Resistance incorr
ect.
Replace Blower Motor
.
Nor
mal Blower
Motor
.
PROBLEM 3-b
Runs Runs Runs Runs Runs Runs
RESULRESULRESULRESULRESUL
TTTTT