STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
SEQUENCESEQUENCE
SEQUENCE
ResistanceResistance
ResistanceResistance
Resistance
OK.OK.
OK.OK.
OK.
Check H.VCheck H.V
Check H.VCheck H.V
Check H.V
. Capacitor or H.V. Capacitor or H.V
. Capacitor or H.V. Capacitor or H.V
. Capacitor or H.V
..
..
.
Diode with an ohm-meter afterDiode with an ohm-meter after
Diode with an ohm-meter afterDiode with an ohm-meter after
Diode with an ohm-meter after
rr
rr
r
emoving lead wiremoving lead wir
emoving lead wiremoving lead wir
emoving lead wir
es.es.
es.es.
es.
(See page 5)(See page 5)
(See page 5)(See page 5)
(See page 5)
NormalNormal
NormalNormal
Normal
resistanceresistance
resistanceresistance
resistance
NoNo
NoNo
No
operation.operation.
operation.operation.
operation.
Check operation of BlowerCheck operation of Blower
Check operation of BlowerCheck operation of Blower
Check operation of Blower
Motor when “STMotor when “ST
Motor when “STMotor when “ST
Motor when “ST
ARAR
ARAR
AR
T” keyT” key
T” keyT” key
T” key
is touched.is touched.
is touched.is touched.
is touched.
NormalNormal
NormalNormal
Normal
operation.operation.
operation.operation.
operation.
Check rCheck r
Check rCheck r
Check r
esistance of eachesistance of each
esistance of eachesistance of each
esistance of each
winding after rwinding after r
winding after rwinding after r
winding after r
emovingemoving
emovingemoving
emoving
lead wirlead wir
lead wirlead wir
lead wir
es. (See page 4)es. (See page 4)
es. (See page 4)es. (See page 4)
es. (See page 4)
H.VH.V
H.VH.V
H.V
. T. T
. T. T
. T
ransforransfor
ransforransfor
ransfor
mermer
mermer
mer
..
..
.
ResistanceResistance
ResistanceResistance
Resistance
incorrincorr
incorrincorr
incorr
ect.ect.
ect.ect.
ect.
NorNor
NorNor
Nor
mal H.Vmal H.V
mal H.Vmal H.V
mal H.V
..
..
.
Capacitor orCapacitor or
Capacitor orCapacitor or
Capacitor or
H.VH.V
H.VH.V
H.V
. Diode.. Diode.
. Diode.. Diode.
. Diode.
Replace H.VReplace H.V
Replace H.VReplace H.V
Replace H.V
..
..
.
TT
TT
T
ransforransfor
ransforransfor
ransfor
mermer
mermer
mer
..
..
.
NorNor
NorNor
Nor
mal H.Vmal H.V
mal H.Vmal H.V
mal H.V
..
..
.
TT
TT
T
ransforransfor
ransforransfor
ransfor
mermer
mermer
mer
..
..
.
(4) PROBLEM(4) PROBLEM
(4) PROBLEM(4) PROBLEM
(4) PROBLEM
Low micrLow micr
Low micrLow micr
Low micr
owave powerowave power
owave powerowave power
owave power
output.output.
output.output.
output.
bb
bb
b
aa
aa
a
ReplaceReplace
ReplaceReplace
Replace
MagnetrMagnetr
MagnetrMagnetr
Magnetr
on.on.
on.on.
on.
NormalNormal
NormalNormal
Normal
MagnetrMagnetr
MagnetrMagnetr
Magnetr
on.on.
on.on.
on.
DefectiveDefective
DefectiveDefective
Defective
H.VH.V
H.VH.V
H.V
. Capacitor. Capacitor
. Capacitor. Capacitor
. Capacitor
or H.Vor H.V
or H.Vor H.V
or H.V
. Diode.. Diode.
. Diode.. Diode.
. Diode.
Replace H.VReplace H.V
Replace H.VReplace H.V
Replace H.V
..
..
.
Capacitor orCapacitor or
Capacitor orCapacitor or
Capacitor or
H.VH.V
H.VH.V
H.V
. Diode.. Diode.
. Diode.. Diode.
. Diode.
NorNor
NorNor
Nor
mal H.Vmal H.V
mal H.Vmal H.V
mal H.V
..
..
.
Capacitor orCapacitor or
Capacitor orCapacitor or
Capacitor or
H.VH.V
H.VH.V
H.V
. Diode.. Diode.
. Diode.. Diode.
. Diode.
Replace Thermal ProtectorReplace Thermal Protector
Replace Thermal ProtectorReplace Thermal Protector
Replace Thermal Protector
for Magnetron or Thermalfor Magnetron or Thermal
for Magnetron or Thermalfor Magnetron or Thermal
for Magnetron or Thermal
PrPr
PrPr
Pr
otector for Cavity.otector for Cavity.
otector for Cavity.otector for Cavity.
otector for Cavity.
Normal Thermal ProtectorNormal Thermal Protector
Normal Thermal ProtectorNormal Thermal Protector
Normal Thermal Protector
for Magnetron or Thermalfor Magnetron or Thermal
for Magnetron or Thermalfor Magnetron or Thermal
for Magnetron or Thermal
PrPr
PrPr
Pr
otector for Cavity.otector for Cavity.
otector for Cavity.otector for Cavity.
otector for Cavity.
TT
TT
T
emporarily shortemporarily short
emporarily shortemporarily short
emporarily short
across terminalsacross terminals
across terminalsacross terminals
across terminals
of Therof Ther
of Therof Ther
of Ther
malmal
malmal
mal
Protector forProtector for
Protector forProtector for
Protector for
Magnetron orMagnetron or
Magnetron orMagnetron or
Magnetron or
Themal ProtectorThemal Protector
Themal ProtectorThemal Protector
Themal Protector
for Cavity by usingfor Cavity by using
for Cavity by usingfor Cavity by using
for Cavity by using
jumper lead.jumper lead.
jumper lead.jumper lead.
jumper lead.
NoNo
NoNo
No
operation.operation.
operation.operation.
operation.
Measure resistanceMeasure resistance
Measure resistanceMeasure resistance
Measure resistance
of Blower Motorof Blower Motor
of Blower Motorof Blower Motor
of Blower Motor
ApprAppr
ApprAppr
Appr
ox. 63 ohms.ox. 63 ohms.
ox. 63 ohms.ox. 63 ohms.
ox. 63 ohms.
Replace ControlReplace Control
Replace ControlReplace Control
Replace Control
CirCir
CirCir
Cir
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
d.d.
d.d.
d.
Normal ControlNormal Control
Normal ControlNormal Control
Normal Control
CirCir
CirCir
Cir
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
d.d.
d.d.
d.
ResistanceResistance
ResistanceResistance
Resistance
incorrincorr
incorrincorr
incorr
ect.ect.
ect.ect.
ect.
ReplaceReplace
ReplaceReplace
Replace
BlowerBlower
BlowerBlower
Blower
MotorMotor
MotorMotor
Motor
..
..
.
NorNor
NorNor
Nor
mal Blowermal Blower
mal Blowermal Blower
mal Blower
MotorMotor
MotorMotor
Motor
..
..
.
PROBLEMPROBLEM
PROBLEMPROBLEM
PROBLEM
3-b3-b
3-b3-b
3-b
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
RESULRESUL
RESULRESUL
RESUL
TT
TT
T
- 9 -
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
6363
6363
63
NormalNormal
NormalNormal
Normal
operation.operation.
operation.operation.
operation.
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