Sanyo EM-N107BS User manual

Category
Microwaves
Type
User manual

This manual is also suitable for

CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
WW
WW
W
ARNING TO SERARNING TO SER
ARNING TO SERARNING TO SER
ARNING TO SER
VICE TECHNICIANSVICE TECHNICIANS
VICE TECHNICIANSVICE TECHNICIANS
VICE TECHNICIANS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING
SERVICING TO AVOID POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE ENERGY
(a) Do not operate or allow the oven to be operated with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other
microwave source, and make repairs as necessary :
(1) Interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage),
(4) damage to or loosening of hinges and latches, (5) evidence of dropping or abuse.
(c) Before turning on microwave power for any service test or inspection within the microwave generating
compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity,
and connections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and
transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before
the oven is released to the owner.
(e) A microwave leakage check to verify compliance with the Federal performance standard should be performed
on each oven prior to release to the owner.
REFERENCE NO. SM-860236
SER SER
SER SER
SER
VICE MANUALVICE MANUAL
VICE MANUALVICE MANUAL
VICE MANUAL
Micr Micr
Micr Micr
Micr
owave Ovenowave Oven
owave Ovenowave Oven
owave Oven
EM-P410WS EM-P410WS
EM-P410WS EM-P410WS
EM-P410WS
(U.S.A.)(U.S.A.)
(U.S.A.)(U.S.A.)
(U.S.A.)
Pr Pr
Pr Pr
Pr
oduct Code No.oduct Code No.
oduct Code No.oduct Code No.
oduct Code No.
437 450 34437 450 34
437 450 34437 450 34
437 450 34
File No :File No :
File No :File No :
File No :
In the area emitting the highest reading, switch the meter
to SLOW RESPONSE, and take a reading for minimum of
three (3) seconds. We recommended the pattern outline
shown below when the door surface is surveyed.
NOTE : Periodically check to be sure that the probe tip is
not worn or dirty.
The following U.S. standard applies to microwave ovens :
21 CFR 1030.10, Performance Standard for Microwave
Ovens.
It requires that the power density of the microwave
radiation emitted by a microwave oven shall not exceed
five (5) milliwatts per square centimeter at any point 5
centimeter (about 2 inches) or more from the external
surface of the oven.
All microwave ovens exceeding the emission level of
4mW/cm
2
must be reported to Dept. of Service for
microwave ovens and the manufacturer immediately and
the owner should be told not to use the microwave oven
until it has been repaired completely.
If a microwave oven is found to operate with the door open,
report to Dept. of Service, the manufacturer and CDRH*
immediately. Also tell the owner not to use the oven.
*CDRH : Center for Device and Radiological Health.
The interlock monitor switch acts as the final safety switch
protecting the customer from microwave radiation. If the
interlock monitor switch operates to blow the fuse with
interlocks failed, you must replace all interlock switches
primary and secondary interlock switches and the monitor
switch with new ones because the contacts of those
interlock switches may be melted and welded together.
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
For micrFor micr
For micrFor micr
For micr
owave enerowave ener
owave enerowave ener
owave ener
gy emissiongy emission
gy emissiongy emission
gy emission
On every service calls, check for microwave energy
emission, must be made according to the following manner.
MeasurMeasur
MeasurMeasur
Measur
ement of enerement of ener
ement of enerement of ener
ement of ener
gy emissiongy emission
gy emissiongy emission
gy emission
Measurement must be made with the microwave oven
operating at its maximum output and containing a load of
275±15 milliliters of tap water initially at 20
o
±5
o
celsius (68
±9
o
F) placed within the cavity at the center.
NOTE : The water container must be a 600 milliliter beaker
and made of an electrically none conductive
material such as glass or plastic.
The cook tray must be in place when measuring
emission.
A properly operating door and seal assembly will normally
register emission on greater than 4mW/cm
2
to allow for
measurement uncertainty with the cooking shelf or tray in
place.
All repairs must be performed in such a manner All repairs must be performed in such a manner
All repairs must be performed in such a manner All repairs must be performed in such a manner
All repairs must be performed in such a manner
thatthat
thatthat
that
micrmicr
micrmicr
micr
owave enerowave ener
owave enerowave ener
owave ener
gy emission argy emission ar
gy emission argy emission ar
gy emission ar
e minimal.e minimal.
e minimal.e minimal.
e minimal.
Follow the instructions supplied with a detector being used
and performed an R.F. emission test around the door front
and edges and all edges and vent of the outer case. The
cabinet (wrapper) must be in place and the oven fully
assembled.
When performing emission survey, with the meter on FAST
RESPONSE the movement of a detector probe shall not
exceed one (1) inch per second.
- i -
NOTE : If the interlock monitor circuit operates and at the
same time the fuse blows with the door opened,
be sure to replace the control circuit board because
relay 2 on the control circuit board, the door sensing
switch and the electric circuit related on the
door sensing switch, which act as Secondary
Interlock Switch.
Test Procedures and Troubleshooting.................... 4
~
10
Disassembly Instructions ....................................... 11
~
14
Exploded View and Parts List ................................ 15
~
20
Overall Circuit Diagram .......................................... 21
Adjustment Procedures ................................................... 1
Specifications .................................................................. 2
Power Output Measurement ........................................... 2
Precautions and Repair Service Tips .............................. 2
Circuit Diagram ............................................................... 3
1.1.
1.1.
1.
ADJUSTMENT PROCEDURESADJUSTMENT PROCEDURES
ADJUSTMENT PROCEDURESADJUSTMENT PROCEDURES
ADJUSTMENT PROCEDURES
TT
TT
T
O AO A
O AO A
O A
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROW
AA
AA
A
VEVE
VEVE
VE
ENERGY LEAKAGE, THE FOLLOWINGENERGY LEAKAGE, THE FOLLOWING
ENERGY LEAKAGE, THE FOLLOWINGENERGY LEAKAGE, THE FOLLOWING
ENERGY LEAKAGE, THE FOLLOWING
ADJUSTMENT OF THE INTERLOCK SWITCHESADJUSTMENT OF THE INTERLOCK SWITCHES
ADJUSTMENT OF THE INTERLOCK SWITCHESADJUSTMENT OF THE INTERLOCK SWITCHES
ADJUSTMENT OF THE INTERLOCK SWITCHES
SHOULD BE MADE ONLSHOULD BE MADE ONL
SHOULD BE MADE ONLSHOULD BE MADE ONL
SHOULD BE MADE ONL
Y BY AUTHORIZEDY BY AUTHORIZED
Y BY AUTHORIZEDY BY AUTHORIZED
Y BY AUTHORIZED
SERSER
SERSER
SER
VICE PERSONNEL.VICE PERSONNEL.
VICE PERSONNEL.VICE PERSONNEL.
VICE PERSONNEL.
The SANYO service center should have the designated
detector to measure the microwave energy leakage
after the repair or adjustment.
NOTE : Detector to be used at the service center is
NARDA 8100, 8200 or the equivalent.
PRIMARPRIMAR
PRIMARPRIMAR
PRIMAR
Y INTERLOCK SWITCH, INTERLOCKY INTERLOCK SWITCH, INTERLOCK
Y INTERLOCK SWITCH, INTERLOCKY INTERLOCK SWITCH, INTERLOCK
Y INTERLOCK SWITCH, INTERLOCK
MONITOR SWITCH AND DOOR SENSING SWITCHMONITOR SWITCH AND DOOR SENSING SWITCH
MONITOR SWITCH AND DOOR SENSING SWITCHMONITOR SWITCH AND DOOR SENSING SWITCH
MONITOR SWITCH AND DOOR SENSING SWITCH
ADJUSTMENTADJUSTMENT
ADJUSTMENTADJUSTMENT
ADJUSTMENT
(Figure 1)(Figure 1)
(Figure 1)(Figure 1)
(Figure 1)
(1) Loosen 2 screws securing the lever stopper.
(2) Adjust the lever stopper position so that it is pushed
forward and pull backward until there is about zero
gap between the latch lever and the switch body on
the primary interlock switch and at the same time
there is about zero gap between the door latch and
the switch body on the door sensing switch when
the door latch is securely locked.
(3) Tighten the lever stopper screws securely.
(4) Make sure the interlock monitor switch closes after
the primary interlock switch opens when the door
is opened very slowly, according to “CHECKOUT
PROCEDURE FOR SWITCHES” on page 6.
(5) Make sure the interlock monitor switch opens before
the primary interlock switch closes when the door is
closed very slowly, according to “CHECKOUT
PROCEDURE FOR SWITCHES” on page 6.
(6) Make sure the microwave energy leakage should be
no greater than 4mW/cm
2
to allow for measurement
uncertainty when measured with a detector.
(All service adjustments must be made for
minimum microwave energy leakage readings.)
- TABLE OF CONTENTS -
Lever Stopper
Door
Sensing
Switch
Door
Latch
Interlock
Monitor
Switch
Primary
Interlock
Switch
Screws
Latch
Lever
Figure 1Figure 1
Figure 1Figure 1
Figure 1
- 1 -
2.2.
2.2.
2.
SPECIFICASPECIFICA
SPECIFICASPECIFICA
SPECIFICA
TIONSTIONS
TIONSTIONS
TIONS
Rated Power Consumption .. 1480W.
Microwave Output ................ 1050W.
Frequency ............................. 2,450MHz±50MHz.
Power Supply ........................120V±12V, 60Hz.
Rated Current ....................... 12.9 Amp.
Safety Devices ..................... Thermal Fuse open at
332°F (167°C) for Cavity.
Thermal Protector open at
252°F (122°C) for Magnetron.
Fuse (Cartridge Type 20A)
Primary Interlock Switch,
Door Sensing Switch and
Relay 2.
Interlock Monitor Switch.
Timer ..................................... Electronic Digital, up to
99 min. 99 sec.
Overall Dimensions ................ 20
5
/
8
”(W) x 16
1
/
2
”(D) x 11
3
/
8
”(H)
Oven Cavity Size .................. 13
3
/
4
”(W) x 14
5
/
8
”(D) x 8
1
/
2
”(H)
Turn Table Diameter.............. 10
7
/
8
Effective Capacity of
Oven Cavity .......................... 1.1 Cubic Feet.
Net Weight ........................... Approx. 34.5 Lbs.
3.3.
3.3.
3.
POWER OUTPUT MEASUREMENTPOWER OUTPUT MEASUREMENT
POWER OUTPUT MEASUREMENTPOWER OUTPUT MEASUREMENT
POWER OUTPUT MEASUREMENT
NOTENOTE
NOTENOTE
NOTE
The power output specification, 1050W. on this model is
measured with IEC measurement. The power output is
measured with two (2) liters water is equivalent to 1050W.
in measurement with IEC, when measured with the following
power output.
(1) Fill two beakers (glass or plastic) with each one liter of
tap water (about 20°C) and measure the water temperature.
(Use a thermometer with a 1/10 degree gauge).
(2) Place the beakers side by side in the centre of the glass tray.
(3) Close the door, set the “TIME” for two minutes. (“200” in
the display window). Touch the “START” key and heat
the water exactly for two minutes.
(4) Take the beakers out, immediately stir the water and
measure the water temperature respectively.
(5) Calculate the temperature rise of water in each beaker.
Then calculate the average value of two temperature rises.
Output power can be calculated by the equation :
Power Output (W) = 70 xt
Where t is an average temperature rise in degrees
Centigrade.
(6) Power Output shall be in the following range :
Average Temperature Rise Power Output
Minimum 19.6°F (10.9°C) 763W
Maximum 20.0°F (14.0°C) 980W
(7) Power Output is affected by the line voltage under load.
For correct Power Output measurement, the line voltage
under load must be 120±1 volts.
4.4.
4.4.
4.
PRECAUTIONS AND REPPRECAUTIONS AND REP
PRECAUTIONS AND REPPRECAUTIONS AND REP
PRECAUTIONS AND REP
AIR SERAIR SER
AIR SERAIR SER
AIR SER
VICE TIPSVICE TIPS
VICE TIPSVICE TIPS
VICE TIPS
PRELIMINARPRELIMINAR
PRELIMINARPRELIMINAR
PRELIMINAR
YY
YY
Y
A.A.
A.A.
A.
SINCE NEARLSINCE NEARL
SINCE NEARLSINCE NEARL
SINCE NEARL
Y 2,000 VOLY 2,000 VOL
Y 2,000 VOLY 2,000 VOL
Y 2,000 VOL
TS EXISTS IN SOME CIR-TS EXISTS IN SOME CIR-
TS EXISTS IN SOME CIR-TS EXISTS IN SOME CIR-
TS EXISTS IN SOME CIR-
CUITS OF THIS MICROWCUITS OF THIS MICROW
CUITS OF THIS MICROWCUITS OF THIS MICROW
CUITS OF THIS MICROW
AA
AA
A
VE OVEN, REPVE OVEN, REP
VE OVEN, REPVE OVEN, REP
VE OVEN, REP
AIRS SHOULDAIRS SHOULD
AIRS SHOULDAIRS SHOULD
AIRS SHOULD
BE CARRIED OUT WITH GREABE CARRIED OUT WITH GREA
BE CARRIED OUT WITH GREABE CARRIED OUT WITH GREA
BE CARRIED OUT WITH GREA
T CARE.T CARE.
T CARE.T CARE.
T CARE.
B.B.
B.B.
B.
TO ATO A
TO ATO A
TO A
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROW
AA
AA
A
VEVE
VEVE
VE
ENERGY LEAKAGE, THE FOLLOWING PRECAUTIONSENERGY LEAKAGE, THE FOLLOWING PRECAUTIONS
ENERGY LEAKAGE, THE FOLLOWING PRECAUTIONSENERGY LEAKAGE, THE FOLLOWING PRECAUTIONS
ENERGY LEAKAGE, THE FOLLOWING PRECAUTIONS
MUST BE TMUST BE T
MUST BE TMUST BE T
MUST BE T
AKEN BEFORE SERAKEN BEFORE SER
AKEN BEFORE SERAKEN BEFORE SER
AKEN BEFORE SER
VICING.VICING.
VICING.VICING.
VICING.
(1) Before the power is applied :
(a) Open and close door several times to make sure the
primary interlock switch, the interlock monitor switch
and the door sensing switch operate properly.
(Listen for the clicking sound from the switches).
Make sure the interlock monitor switch closes after
the primary interlock switch is opens when the door
is opened. (See pages 1 and 6).
(b) Make sure the perforated screen and the choke die-
lectric of the door are correctly mounted.
(2) After the power is applied :
(a) Open and close the door to see if the interlock mech-
anism operates properly.
(b) Check microwave energy leakage with a leakage
detector and confirm the energy leakage should be
no greater than 4mW/cm
2
to allow for measurement
uncertainty.
(3) Do not operate the unit until it is completely repaired,
if any of the following conditions exists :
(a) Door does not close firmly against the cavity front.
(b) The hinge is broken.
(c) The choke dielectric or the door seal is damaged.
(d) The door is bent or warped, or there is any other
visible damage to the oven that may cause microwave
energy leakage.
NOTE :
Always keep the seal clean.Always keep the seal clean.
Always keep the seal clean.Always keep the seal clean.
Always keep the seal clean.
(e) Make sure that there are no defective parts in the
interlock mechanism.
(f) Make sure there are no defective parts in the
microwave generating and transmission assembly.
(especially waveguide).
(4) The following items should be checked after the unit
is repaired :
(a) The interlock monitor switch is connected correctly
and firmly.
(b) The magnetron gasket on the magnetron is properly
positioned.
(c) Waveguide and oven cavity are intact (no leakage of
microwave energy).
(d) The door can be properly closed and the safety
switches work properly.
(e) The oven must be stopped when the door is opened
or the time is up.
The oven must not be operated with any of the aboveThe oven must not be operated with any of the above
The oven must not be operated with any of the aboveThe oven must not be operated with any of the above
The oven must not be operated with any of the above
components rcomponents r
components rcomponents r
components r
emoved or bypassed.emoved or bypassed.
emoved or bypassed.emoved or bypassed.
emoved or bypassed.
- 2 -
- 3 -
5. CIRCUIT DIAGRAM
Figure 2Figure 2
Figure 2Figure 2
Figure 2
WIRING COLOR
O : ORANGE B K : BLACK
R : RED BL : BLUE
W : WHITE Y : YELLOW
Filament Windings
Primary
Windings
Secondary
Windings
6. TEST PROCEDURES AND TROUBLESHOOTING6. TEST PROCEDURES AND TROUBLESHOOTING
6. TEST PROCEDURES AND TROUBLESHOOTING6. TEST PROCEDURES AND TROUBLESHOOTING
6. TEST PROCEDURES AND TROUBLESHOOTING
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
- DISCONNECT THE POWER SUPPL- DISCONNECT THE POWER SUPPL
- DISCONNECT THE POWER SUPPL- DISCONNECT THE POWER SUPPL
- DISCONNECT THE POWER SUPPL
Y CORD FROMY CORD FROM
Y CORD FROMY CORD FROM
Y CORD FROM
THE WTHE W
THE WTHE W
THE W
ALL OUTLET WHENEVER REMOVING THEALL OUTLET WHENEVER REMOVING THE
ALL OUTLET WHENEVER REMOVING THEALL OUTLET WHENEVER REMOVING THE
ALL OUTLET WHENEVER REMOVING THE
CABINET FROM THE UNITCABINET FROM THE UNIT
CABINET FROM THE UNITCABINET FROM THE UNIT
CABINET FROM THE UNIT
, PROCEED WITH THE, PROCEED WITH THE
, PROCEED WITH THE, PROCEED WITH THE
, PROCEED WITH THE
TESTS ONLTESTS ONL
TESTS ONLTESTS ONL
TESTS ONL
Y AFTER DISCHARGING THE HIGHY AFTER DISCHARGING THE HIGH
Y AFTER DISCHARGING THE HIGHY AFTER DISCHARGING THE HIGH
Y AFTER DISCHARGING THE HIGH
VOLVOL
VOLVOL
VOL
TT
TT
T
AGE CAPAGE CAP
AGE CAPAGE CAP
AGE CAP
ACITOR AND REMOVING THE LEADACITOR AND REMOVING THE LEAD
ACITOR AND REMOVING THE LEADACITOR AND REMOVING THE LEAD
ACITOR AND REMOVING THE LEAD
WIRES FROM THE PRIMARWIRES FROM THE PRIMAR
WIRES FROM THE PRIMARWIRES FROM THE PRIMAR
WIRES FROM THE PRIMAR
Y WINDING OF THEY WINDING OF THE
Y WINDING OF THEY WINDING OF THE
Y WINDING OF THE
HIGH VOLHIGH VOL
HIGH VOLHIGH VOL
HIGH VOL
TT
TT
T
AGE TRANSFORMER. (SEE FIGURE 3)AGE TRANSFORMER. (SEE FIGURE 3)
AGE TRANSFORMER. (SEE FIGURE 3)AGE TRANSFORMER. (SEE FIGURE 3)
AGE TRANSFORMER. (SEE FIGURE 3)
Figure 3Figure 3
Figure 3Figure 3
Figure 3
Figure 4Figure 4
Figure 4Figure 4
Figure 4
Figure 5Figure 5
Figure 5Figure 5
Figure 5
Figure 6Figure 6
Figure 6Figure 6
Figure 6
Ohm-meterOhm-meter
Ohm-meterOhm-meter
Ohm-meter
Ohm-meterOhm-meter
Ohm-meterOhm-meter
Ohm-meter
Ohm-meterOhm-meter
Ohm-meterOhm-meter
Ohm-meter
- 4 -
A.A.
A.A.
A.
TEST PROCEDURESTEST PROCEDURES
TEST PROCEDURESTEST PROCEDURES
TEST PROCEDURES
COMPONENT COMPONENT
COMPONENT COMPONENT
COMPONENT
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
RESUL RESUL
RESUL RESUL
RESUL
TT
TT
T
1)1)
1)1)
1)
Check for rCheck for r
Check for rCheck for r
Check for r
esistance : Acresistance : Acr
esistance : Acresistance : Acr
esistance : Acr
oss the filamentoss the filament
oss the filamentoss the filament
oss the filament
Normal reading :Normal reading :
Normal reading :Normal reading :
Normal reading :
terter
terter
ter
minals of the magnetrminals of the magnetr
minals of the magnetrminals of the magnetr
minals of the magnetr
on with an ohm-meteron with an ohm-meter
on with an ohm-meteron with an ohm-meter
on with an ohm-meter
Less than 1 ohm.Less than 1 ohm.
Less than 1 ohm.Less than 1 ohm.
Less than 1 ohm.
on R x 1 scale.on R x 1 scale.
on R x 1 scale.on R x 1 scale.
on R x 1 scale.
MAGNETRONMAGNETRON
MAGNETRONMAGNETRON
MAGNETRON
2)2)
2)2)
2)
Check for rCheck for r
Check for rCheck for r
Check for r
esistance : Between each filamentesistance : Between each filament
esistance : Between each filamentesistance : Between each filament
esistance : Between each filament
Normal reading :Normal reading :
Normal reading :Normal reading :
Normal reading :
terter
terter
ter
minal of the magnetrminal of the magnetr
minal of the magnetrminal of the magnetr
minal of the magnetr
on and the chassison and the chassis
on and the chassison and the chassis
on and the chassis
Infinite ohms.Infinite ohms.
Infinite ohms.Infinite ohms.
Infinite ohms.
grgr
grgr
gr
ound with an ohm-meter on highest scale.ound with an ohm-meter on highest scale.
ound with an ohm-meter on highest scale.ound with an ohm-meter on highest scale.
ound with an ohm-meter on highest scale.
1)1)
1)1)
1)
Measure the resistance :Measure the resistance :
Measure the resistance :Measure the resistance :
Measure the resistance :
Normal readings :Normal readings :
Normal readings :Normal readings :
Normal readings :
WW
WW
W
ith an ohm-meter on R x 1 scale.ith an ohm-meter on R x 1 scale.
ith an ohm-meter on R x 1 scale.ith an ohm-meter on R x 1 scale.
ith an ohm-meter on R x 1 scale.
a.a.
a.a.
a.
Primary winding :Primary winding :
Primary winding :Primary winding :
Primary winding :
ApprAppr
ApprAppr
Appr
oximately 0.32 ohms.oximately 0.32 ohms.
oximately 0.32 ohms.oximately 0.32 ohms.
oximately 0.32 ohms.
b.b.
b.b.
b.
Filament winding :Filament winding :
Filament winding :Filament winding :
Filament winding :
Less than 1 ohm.Less than 1 ohm.
Less than 1 ohm.Less than 1 ohm.
Less than 1 ohm.
c.c.
c.c.
c.
Secondary winding :Secondary winding :
Secondary winding :Secondary winding :
Secondary winding :
ApprAppr
ApprAppr
Appr
oximately 75.2 ohms.oximately 75.2 ohms.
oximately 75.2 ohms.oximately 75.2 ohms.
oximately 75.2 ohms.
2)2)
2)2)
2)
Measure the resistance :Measure the resistance :
Measure the resistance :Measure the resistance :
Measure the resistance :
Normal readings :Normal readings :
Normal readings :Normal readings :
Normal readings :
WW
WW
W
ith an ohm-meter on highest scale.ith an ohm-meter on highest scale.
ith an ohm-meter on highest scale.ith an ohm-meter on highest scale.
ith an ohm-meter on highest scale.
a.a.
a.a.
a.
Primary winding to grPrimary winding to gr
Primary winding to grPrimary winding to gr
Primary winding to gr
ound.ound.
ound.ound.
ound.
Infinite ohms.Infinite ohms.
Infinite ohms.Infinite ohms.
Infinite ohms.
HIGH-VOLHIGH-VOL
HIGH-VOLHIGH-VOL
HIGH-VOL
TT
TT
T
AGEAGE
AGEAGE
AGE
bb
bb
b
Filament winding to grFilament winding to gr
Filament winding to grFilament winding to gr
Filament winding to gr
ound.ound.
ound.ound.
ound.
Infinite ohms.Infinite ohms.
Infinite ohms.Infinite ohms.
Infinite ohms.
TRANSFORMERTRANSFORMER
TRANSFORMERTRANSFORMER
TRANSFORMER
Note :Note :
Note :Note :
Note :
Remove varRemove var
Remove varRemove var
Remove var
nish ofnish of
nish ofnish of
nish of
measurmeasur
measurmeasur
measur
ed point.ed point.
ed point.ed point.
ed point.
COMPONENT COMPONENT
COMPONENT COMPONENT
COMPONENT
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
RESUL RESUL
RESUL RESUL
RESUL
TT
TT
T
MeasurMeasur
MeasurMeasur
Measur
e the re the r
e the re the r
e the r
esistance : Acresistance : Acr
esistance : Acresistance : Acr
esistance : Acr
oss two teross two ter
oss two teross two ter
oss two ter
minalsminals
minalsminals
minals
Normal reading :Normal reading :
Normal reading :Normal reading :
Normal reading :
with an ohm-meter on highest scale.with an ohm-meter on highest scale.
with an ohm-meter on highest scale.with an ohm-meter on highest scale.
with an ohm-meter on highest scale.
Momentarily indicates several ohms,Momentarily indicates several ohms,
Momentarily indicates several ohms,Momentarily indicates several ohms,
Momentarily indicates several ohms,
and gradually rand gradually r
and gradually rand gradually r
and gradually r
eturetur
eturetur
etur
ns to 10 meg-ohms.ns to 10 meg-ohms.
ns to 10 meg-ohms.ns to 10 meg-ohms.
ns to 10 meg-ohms.
HIGH-VOLHIGH-VOL
HIGH-VOLHIGH-VOL
HIGH-VOL
TT
TT
T
AGEAGE
AGEAGE
AGE
Abnormal reading :Abnormal reading :
Abnormal reading :Abnormal reading :
Abnormal reading :
CAPCAP
CAPCAP
CAP
ACITORACITOR
ACITORACITOR
ACITOR
Indicates continuity or 10 meg-ohmsIndicates continuity or 10 meg-ohms
Indicates continuity or 10 meg-ohmsIndicates continuity or 10 meg-ohms
Indicates continuity or 10 meg-ohms
includingincluding
includingincluding
including
frfr
frfr
fr
om the beginning.om the beginning.
om the beginning.om the beginning.
om the beginning.
BLEEDERBLEEDER
BLEEDERBLEEDER
BLEEDER
RESISTORRESISTOR
RESISTORRESISTOR
RESISTOR
MeasurMeasur
MeasurMeasur
Measur
e the re the r
e the re the r
e the r
esistance : Acresistance : Acr
esistance : Acresistance : Acr
esistance : Acr
oss two teross two ter
oss two teross two ter
oss two ter
minalsminals
minalsminals
minals
Normal reading :Normal reading :
Normal reading :Normal reading :
Normal reading :
with an ohm-meter on R x 10,000 scale.with an ohm-meter on R x 10,000 scale.
with an ohm-meter on R x 10,000 scale.with an ohm-meter on R x 10,000 scale.
with an ohm-meter on R x 10,000 scale.
Indicates about the middle position inIndicates about the middle position in
Indicates about the middle position inIndicates about the middle position in
Indicates about the middle position in
one dirone dir
one dirone dir
one dir
ection (forwarection (forwar
ection (forwarection (forwar
ection (forwar
d dird dir
d dird dir
d dir
ection) andection) and
ection) andection) and
ection) and
infinite ohms in the rinfinite ohms in the r
infinite ohms in the rinfinite ohms in the r
infinite ohms in the r
everse direverse dir
everse direverse dir
everse dir
ection,ection,
ection,ection,
ection,
using meter which is prusing meter which is pr
using meter which is prusing meter which is pr
using meter which is pr
ovided with aovided with a
ovided with aovided with a
ovided with a
9 volt battery.9 volt battery.
9 volt battery.9 volt battery.
9 volt battery.
HIGH-VOLHIGH-VOL
HIGH-VOLHIGH-VOL
HIGH-VOL
TT
TT
T
AGEAGE
AGEAGE
AGE
DIODEDIODE
DIODEDIODE
DIODE
NOTENOTE
NOTENOTE
NOTE
- Some digital meter may show over- Some digital meter may show over
- Some digital meter may show over- Some digital meter may show over
- Some digital meter may show over
even in a forwareven in a forwar
even in a forwareven in a forwar
even in a forwar
d dird dir
d dird dir
d dir
ection becauseection because
ection becauseection because
ection because
low measuring voltage of meter doeslow measuring voltage of meter does
low measuring voltage of meter doeslow measuring voltage of meter does
low measuring voltage of meter does
not allow the meter currnot allow the meter curr
not allow the meter currnot allow the meter curr
not allow the meter curr
ent to passent to pass
ent to passent to pass
ent to pass
thrthr
thrthr
thr
ough the high voltage diode.ough the high voltage diode.
ough the high voltage diode.ough the high voltage diode.
ough the high voltage diode.
Abnormal reading :Abnormal reading :
Abnormal reading :Abnormal reading :
Abnormal reading :
Indicates continuity or infinite ohmsIndicates continuity or infinite ohms
Indicates continuity or infinite ohmsIndicates continuity or infinite ohms
Indicates continuity or infinite ohms
in both dirin both dir
in both dirin both dir
in both dir
ections.ections.
ections.ections.
ections.
MeasurMeasur
MeasurMeasur
Measur
e the voltage : Between test point TP-1,e the voltage : Between test point TP-1,
e the voltage : Between test point TP-1,e the voltage : Between test point TP-1,
e the voltage : Between test point TP-1,
TP-2 and GrTP-2 and Gr
TP-2 and GrTP-2 and Gr
TP-2 and Gr
ound. (See Contround. (See Contr
ound. (See Contround. (See Contr
ound. (See Contr
ol Cirol Cir
ol Cirol Cir
ol Cir
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
d ond on
d ond on
d on
page 19).page 19).
page 19).page 19).
page 19).
CONTROLCONTROL
CONTROLCONTROL
CONTROL
CIRCUITCIRCUIT
CIRCUITCIRCUIT
CIRCUIT
BOARDBOARD
BOARDBOARD
BOARD
NOTENOTE
NOTENOTE
NOTE
- Pr- Pr
- Pr- Pr
- Pr
oceed with the check of the Step-Downoceed with the check of the Step-Down
oceed with the check of the Step-Downoceed with the check of the Step-Down
oceed with the check of the Step-Down
TT
TT
T
ransforransfor
ransforransfor
ransfor
mermer
mermer
mer
, to see if any one of the measur, to see if any one of the measur
, to see if any one of the measur, to see if any one of the measur
, to see if any one of the measur
eded
eded
ed
values is difvalues is dif
values is difvalues is dif
values is dif
ferfer
ferfer
fer
ent frent fr
ent frent fr
ent fr
om the specified values.om the specified values.
om the specified values.om the specified values.
om the specified values.
Figure 8Figure 8
Figure 8Figure 8
Figure 8
Ohm-meterOhm-meter
Ohm-meterOhm-meter
Ohm-meter
Figure 7Figure 7
Figure 7Figure 7
Figure 7
Ohm-meterOhm-meter
Ohm-meterOhm-meter
Ohm-meter
- 5 -
TT
TT
T
estest
estest
est
PointPoint
PointPoint
Point
TP-1 TP-1
TP-1 TP-1
TP-1
TP-2TP-2
TP-2TP-2
TP-2
VV
VV
V
oltageoltage
oltageoltage
oltage
-5V -5V
-5V -5V
-5V
-15V-15V
-15V-15V
-15V
DC DC
DC DC
DC
DC DC
DC DC
DC
WhenWhen
WhenWhen
When
When notWhen not
When notWhen not
When not
ResistanceResistance
ResistanceResistance
Resistance
touchedtouched
touchedtouched
touched
touchedtouched
touchedtouched
touched
valuevalue
valuevalue
value
Less thanLess than
Less thanLess than
Less than
More thanMore than
More thanMore than
More than
1K Ohms1K Ohms
1K Ohms1K Ohms
1K Ohms
1 MEG Ohm1 MEG Ohm
1 MEG Ohm1 MEG Ohm
1 MEG Ohm
COMPONENT COMPONENT
COMPONENT COMPONENT
COMPONENT
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
RESUL RESUL
RESUL RESUL
RESUL
TT
TT
T
MeasurMeasur
MeasurMeasur
Measur
e the re the r
e the re the r
e the r
esistance between teresistance between ter
esistance between teresistance between ter
esistance between ter
minals ofminals of
minals ofminals of
minals of
FPC connector after rFPC connector after r
FPC connector after rFPC connector after r
FPC connector after r
emoving it fremoving it fr
emoving it fremoving it fr
emoving it fr
om S101.om S101.
om S101.om S101.
om S101.
(Figure 9).(Figure 9).
(Figure 9).(Figure 9).
(Figure 9).
TOUCH KEYTOUCH KEY
TOUCH KEYTOUCH KEY
TOUCH KEY
NOTE NOTE
NOTE NOTE
NOTE
BOARDBOARD
BOARDBOARD
BOARD
- When r- When r
- When r- When r
- When r
econnecting the FPC connectoreconnecting the FPC connector
econnecting the FPC connectoreconnecting the FPC connector
econnecting the FPC connector
, make, make
, make, make
, make
When checking “STWhen checking “ST
When checking “STWhen checking “ST
When checking “ST
ARAR
ARAR
AR
T” key, connectT” key, connect
T” key, connectT” key, connect
T” key, connect
sure the holes on the connector are properlysure the holes on the connector are properly
sure the holes on the connector are properlysure the holes on the connector are properly
sure the holes on the connector are properly
ohm-meter as illustration below.ohm-meter as illustration below.
ohm-meter as illustration below.ohm-meter as illustration below.
ohm-meter as illustration below.
inserted in hooks of the plastic fastener in S101.inserted in hooks of the plastic fastener in S101.
inserted in hooks of the plastic fastener in S101.inserted in hooks of the plastic fastener in S101.
inserted in hooks of the plastic fastener in S101.
MAMA
MAMA
MA
TRIX CIRCUIT FORTRIX CIRCUIT FOR
TRIX CIRCUIT FORTRIX CIRCUIT FOR
TRIX CIRCUIT FOR
TOUCH KEY BOARD TOUCH KEY BOARD
TOUCH KEY BOARD TOUCH KEY BOARD
TOUCH KEY BOARD
FPC CONNECTORFPC CONNECTOR
FPC CONNECTORFPC CONNECTOR
FPC CONNECTOR
Figure 9Figure 9
Figure 9Figure 9
Figure 9
Ohm-meterOhm-meter
Ohm-meterOhm-meter
Ohm-meter
- 6 -
TERMINALS OF FPC CONNECTORTERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTORTERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTOR
CHECKOUT PROCEDURE FOR SWITCHESCHECKOUT PROCEDURE FOR SWITCHES
CHECKOUT PROCEDURE FOR SWITCHESCHECKOUT PROCEDURE FOR SWITCHES
CHECKOUT PROCEDURE FOR SWITCHES
Disconnect the lead wirDisconnect the lead wir
Disconnect the lead wirDisconnect the lead wir
Disconnect the lead wir
es fres fr
es fres fr
es fr
om the switches and check for the continuity of the switches, connecting an ohm-meterom the switches and check for the continuity of the switches, connecting an ohm-meter
om the switches and check for the continuity of the switches, connecting an ohm-meterom the switches and check for the continuity of the switches, connecting an ohm-meter
om the switches and check for the continuity of the switches, connecting an ohm-meter
to its terto its ter
to its terto its ter
to its ter
minals.minals.
minals.minals.
minals.
SWITCHES SWITCHES
SWITCHES SWITCHES
SWITCHES
CHECKOUT PROCEDURES CHECKOUT PROCEDURES
CHECKOUT PROCEDURES CHECKOUT PROCEDURES
CHECKOUT PROCEDURES
DOOR OPEN DOOR OPEN
DOOR OPEN DOOR OPEN
DOOR OPEN
DOOR CLOSED DOOR CLOSED
DOOR CLOSED DOOR CLOSED
DOOR CLOSED
(See Figure 1 on page 1) (See Figure 1 on page 1)
(See Figure 1 on page 1) (See Figure 1 on page 1)
(See Figure 1 on page 1)
Primary Interlock Primary Interlock
Primary Interlock Primary Interlock
Primary Interlock
TT
TT
T
erer
erer
er
minals “COM” and “NO”minals “COM” and “NO”
minals “COM” and “NO”minals “COM” and “NO”
minals “COM” and “NO”
Door Sensing Door Sensing
Door Sensing Door Sensing
Door Sensing
Interlock Monitor Interlock Monitor
Interlock Monitor Interlock Monitor
Interlock Monitor
TT
TT
T
erer
erer
er
minals “COM” and “NC”minals “COM” and “NC”
minals “COM” and “NC”minals “COM” and “NC”
minals “COM” and “NC”
CAUTION :CAUTION :
CAUTION :CAUTION :
CAUTION :
After checking the switches, make surAfter checking the switches, make sur
After checking the switches, make surAfter checking the switches, make sur
After checking the switches, make sur
e that the interlock monitor switch is pre that the interlock monitor switch is pr
e that the interlock monitor switch is pre that the interlock monitor switch is pr
e that the interlock monitor switch is pr
operly connected accoroperly connected accor
operly connected accoroperly connected accor
operly connected accor
dingding
dingding
ding
to the CIRCUIT DIAGRAM on page 3.to the CIRCUIT DIAGRAM on page 3.
to the CIRCUIT DIAGRAM on page 3.to the CIRCUIT DIAGRAM on page 3.
to the CIRCUIT DIAGRAM on page 3.
065
1
2
3
4
7
8
9
STOP /
CLEAR
FRESH
VEGETABLE
POWER
LEVEL
SOUP /
BEVERAGE
MORE +
LESS -
TOTAL
DEFROST
QUICK
ON
CLOCK POPCORN
PIZZA START
FROZEN
VEGETABLE
CUSTOM
PROGRAMS
ADD
30 SEC
KITCHEN
TIMER
FROZEN
ENTREE
QUICK
DEFROST
POTATO
- 7 -
STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
SEQUENCESEQUENCE
SEQUENCE
B. TROUBLESHOOTINGB. TROUBLESHOOTING
B. TROUBLESHOOTINGB. TROUBLESHOOTING
B. TROUBLESHOOTING
0 V0 V
0 V0 V
0 V
olt.olt.
olt.olt.
olt.
Check continuity of Fuse,Check continuity of Fuse,
Check continuity of Fuse,Check continuity of Fuse,
Check continuity of Fuse,
Thermal Protector forThermal Protector for
Thermal Protector forThermal Protector for
Thermal Protector for
MagnetrMagnetr
MagnetrMagnetr
Magnetr
on, Theron, Ther
on, Theron, Ther
on, Ther
mal Prmal Pr
mal Prmal Pr
mal Pr
otectorotector
otectorotector
otector
for Cavity and AC Power Corfor Cavity and AC Power Cor
for Cavity and AC Power Corfor Cavity and AC Power Cor
for Cavity and AC Power Cor
d.d.
d.d.
d.
If the Fuse is blown, see “E,If the Fuse is blown, see “E,
If the Fuse is blown, see “E,If the Fuse is blown, see “E,
If the Fuse is blown, see “E,
REMOVING FUSE” on page 13.REMOVING FUSE” on page 13.
REMOVING FUSE” on page 13.REMOVING FUSE” on page 13.
REMOVING FUSE” on page 13.
Replace itReplace it
Replace itReplace it
Replace it
if necessary.if necessary.
if necessary.if necessary.
if necessary.
Normal ControlNormal Control
Normal ControlNormal Control
Normal Control
CirCir
CirCir
Cir
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
d.d.
d.d.
d.
CorrCorr
CorrCorr
Corr
ect seating ofect seating of
ect seating ofect seating of
ect seating of
Connector S101 orConnector S101 or
Connector S101 orConnector S101 or
Connector S101 or
replace Controlreplace Control
replace Controlreplace Control
replace Control
CirCir
CirCir
Cir
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
d.d.
d.d.
d.
Each resistanceEach resistance
Each resistanceEach resistance
Each resistance
OK.OK.
OK.OK.
OK.
ResistanceResistance
ResistanceResistance
Resistance
incorrincorr
incorrincorr
incorr
ect.ect.
ect.ect.
ect.
(ON or OFF)(ON or OFF)
(ON or OFF)(ON or OFF)
(ON or OFF)
Replace TReplace T
Replace TReplace T
Replace T
ouchouch
ouchouch
ouch
Key BoarKey Boar
Key BoarKey Boar
Key Boar
d.d.
d.d.
d.
NorNor
NorNor
Nor
mal Tmal T
mal Tmal T
mal T
ouchouch
ouchouch
ouch
Key BoarKey Boar
Key BoarKey Boar
Key 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.
Replace ControlReplace Control
Replace ControlReplace Control
Replace Control
CirCir
CirCir
Cir
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
d.d.
d.d.
d.
VV
VV
V
oltageoltage
oltageoltage
oltage
incorrincorr
incorrincorr
incorr
ect.ect.
ect.ect.
ect.
Check power supplyCheck power supply
Check power supplyCheck power supply
Check power supply
voltage on Contrvoltage on Contr
voltage on Contrvoltage on Contr
voltage on Contr
ol Cirol Cir
ol Cirol Cir
ol Cir
cuitcuit
cuitcuit
cuit
BoarBoar
BoarBoar
Boar
d. (See page 5)d. (See page 5)
d. (See page 5)d. (See page 5)
d. (See page 5)
Each voltageEach voltage
Each voltageEach voltage
Each voltage
OK.OK.
OK.OK.
OK.
TT
TT
T
ouch Key Boarouch Key Boar
ouch Key Boarouch Key Boar
ouch Key Boar
d.d.
d.d.
d.
Check rCheck r
Check rCheck r
Check r
esistance ofesistance of
esistance ofesistance of
esistance of
TT
TT
T
ouch Key Boarouch Key Boar
ouch Key Boarouch Key Boar
ouch Key Boar
d.d.
d.d.
d.
(See page 6)(See page 6)
(See page 6)(See page 6)
(See page 6)
120 V120 V
120 V120 V
120 V
olts.olts.
olts.olts.
olts.
Check 120Check 120
Check 120Check 120
Check 120
VV
VV
V
ACAC
ACAC
AC
power supply power supply
power supply power supply
power supply
of Connector S1 between Pinof Connector S1 between Pin
of Connector S1 between Pinof Connector S1 between Pin
of Connector S1 between Pin
1 and Pin 3 after r1 and Pin 3 after r
1 and Pin 3 after r1 and Pin 3 after r
1 and Pin 3 after r
emovingemoving
emovingemoving
emoving
Connector S1 from ControlConnector S1 from Control
Connector S1 from ControlConnector S1 from Control
Connector S1 from Control
CirCir
CirCir
Cir
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
d.d.
d.d.
d.
(1) PROBLEM(1) PROBLEM
(1) PROBLEM(1) PROBLEM
(1) PROBLEM
No display or mis-display inNo display or mis-display in
No display or mis-display inNo display or mis-display in
No display or mis-display in
the display window bythe display window by
the display window bythe display window by
the display window by
touching the keys.touching the keys.
touching the keys.touching the keys.
touching the keys.
aa
aa
a
bb
bb
b
RESULRESUL
RESULRESUL
RESUL
TT
TT
T
PROBLEMPROBLEM
PROBLEMPROBLEM
PROBLEM
1-b1-b
1-b1-b
1-b
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
Control CircuitControl Circuit
Control CircuitControl Circuit
Control Circuit
BoarBoar
BoarBoar
Boar
d.d.
d.d.
d.
120120
120120
120
120120
120120
120
STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
SEQUENCESEQUENCE
SEQUENCE
RESULRESUL
RESULRESUL
RESUL
TT
TT
T
ContinuityContinuity
ContinuityContinuity
Continuity
OK.OK.
OK.OK.
OK.
Check contactCheck contact
Check contactCheck contact
Check contact
of Connectorof Connector
of Connectorof Connector
of Connector
S102.S102.
S102.S102.
S102.
PROBLEMPROBLEM
PROBLEMPROBLEM
PROBLEM
3-b3-b
3-b3-b
3-b
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.
TT
TT
T
ouch STouch ST
ouch STouch ST
ouch ST
ARAR
ARAR
AR
T” key andT” key and
T” key andT” key and
T” key and
measurmeasur
measurmeasur
measur
e voltage betweene voltage between
e voltage betweene voltage between
e voltage between
white wire lead and black wirewhite wire lead and black wire
white wire lead and black wirewhite wire lead and black wire
white wire lead and black wire
lead for primary winding oflead for primary winding of
lead for primary winding oflead for primary winding of
lead for primary winding of
H.VH.V
H.VH.V
H.V
. T. T
. T. T
. T
ransforransfor
ransforransfor
ransfor
mer after rmer after r
mer after rmer after r
mer after r
emovingemoving
emovingemoving
emoving
the wirthe wir
the wirthe wir
the wir
e leads fre leads fr
e leads fre leads fr
e leads fr
om terom ter
om terom ter
om ter
minals ofminals of
minals ofminals of
minals of
H.VH.V
H.VH.V
H.V
. T. T
. T. T
. T
ransforransfor
ransforransfor
ransfor
mermer
mermer
mer
..
..
.
AC 120 VAC 120 V
AC 120 VAC 120 V
AC 120 V
olts.olts.
olts.olts.
olts.
NoNo
NoNo
No
continuity.continuity.
continuity.continuity.
continuity.
RunsRuns
RunsRuns
Runs
RunsRuns
RunsRuns
Runs
Check continuity of ConnectorCheck continuity of Connector
Check continuity of ConnectorCheck continuity of Connector
Check continuity of Connector
S102 between Pins (O and BL)S102 between Pins (O and BL)
S102 between Pins (O and BL)S102 between Pins (O and BL)
S102 between Pins (O and BL)
with the door closed afterwith the door closed after
with the door closed afterwith the door closed after
with the door closed after
rr
rr
r
emoving Connector S102 fremoving Connector S102 fr
emoving Connector S102 fremoving Connector S102 fr
emoving Connector S102 fr
omom
omom
om
ContrContr
ContrContr
Contr
ol Cirol Cir
ol Cirol Cir
ol Cir
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
d.d.
d.d.
d.
(2) PROBLEM(2) PROBLEM
(2) PROBLEM(2) PROBLEM
(2) PROBLEM
Cooking operation will notCooking operation will not
Cooking operation will notCooking operation will not
Cooking operation will not
start.start.
start.start.
start.
Door Sensing Switch.Door Sensing Switch.
Door Sensing Switch.Door Sensing Switch.
Door Sensing Switch.
PoorPoor
PoorPoor
Poor
contact.contact.
contact.contact.
contact.
ContactContact
ContactContact
Contact
OK.OK.
OK.OK.
OK.
CorrectCorrect
CorrectCorrect
Correct
seating.seating.
seating.seating.
seating.
NormalNormal
NormalNormal
Normal
contact.contact.
contact.contact.
contact.
Adjust or rAdjust or r
Adjust or rAdjust or r
Adjust or r
eplaceeplace
eplaceeplace
eplace
Door Sensing Switch.Door Sensing Switch.
Door Sensing Switch.Door Sensing Switch.
Door Sensing Switch.
(See page 1)(See page 1)
(See page 1)(See page 1)
(See page 1)
PROBLEMPROBLEM
PROBLEMPROBLEM
PROBLEM
3-a3-a
3-a3-a
3-a
RunsRuns
RunsRuns
Runs
CHECK :CHECK :
CHECK :CHECK :
CHECK :
1.1.
1.1.
1.
Power Supply to Oven.Power Supply to Oven.
Power Supply to Oven.Power Supply to Oven.
Power Supply to Oven.
2.2.
2.2.
2.
Primary Interlock Switch.Primary Interlock Switch.
Primary Interlock Switch.Primary Interlock Switch.
Primary Interlock Switch.
3.3.
3.3.
3.
Thermal Protector for Magnetron andThermal Protector for Magnetron and
Thermal Protector for Magnetron andThermal Protector for Magnetron and
Thermal Protector for Magnetron and
TherTher
TherTher
Ther
mal Prmal Pr
mal Prmal Pr
mal Pr
otector for Cavity.otector for Cavity.
otector for Cavity.otector for Cavity.
otector for Cavity.
(3) PROBLEM(3) PROBLEM
(3) PROBLEM(3) PROBLEM
(3) PROBLEM
Oven does not heat up.Oven does not heat up.
Oven does not heat up.Oven does not heat up.
Oven does not heat up.
Normal DoorNormal Door
Normal DoorNormal Door
Normal Door
Sensing Switch.Sensing Switch.
Sensing Switch.Sensing Switch.
Sensing Switch.
- 8 -
aa
aa
a
aa
aa
a
0 V0 V
0 V0 V
0 V
olts.olts.
olts.olts.
olts.
120120
120120
120
120120
120120
120
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.
STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
SEQUENCESEQUENCE
SEQUENCE
RESULRESUL
RESULRESUL
RESUL
TT
TT
T
Set power levelSet power level
Set power levelSet power level
Set power level
at 50”.at 50.
at 50”.at 50.
at 50”.
(5) PROBLEM(5) PROBLEM
(5) PROBLEM(5) PROBLEM
(5) PROBLEM
The Magnetron operates onThe Magnetron operates on
The Magnetron operates onThe Magnetron operates on
The Magnetron operates on
high level when a lowerhigh level when a lower
high level when a lowerhigh level when a lower
high level when a lower
cook power is selected.cook power is selected.
cook power is selected.cook power is selected.
cook power is selected.
H.VH.V
H.VH.V
H.V
. T. T
. T. T
. T
ransforransfor
ransforransfor
ransfor
mermer
mermer
mer
..
..
.
TT
TT
T
ouch STouch ST
ouch STouch ST
ouch ST
ARAR
ARAR
AR
T” key andT” key and
T” key andT” key and
T” key and
measurmeasur
measurmeasur
measur
e voltage betweene voltage between
e voltage betweene voltage between
e voltage between
white wire lead and black wirewhite wire lead and black wire
white wire lead and black wirewhite wire lead and black wire
white wire lead and black wire
lead for primary winding oflead for primary winding of
lead for primary winding oflead for primary winding of
lead for primary winding of
H.VH.V
H.VH.V
H.V
. T. T
. T. T
. T
ransforransfor
ransforransfor
ransfor
mer aftermer after
mer aftermer after
mer after
rr
rr
r
emoving the wiremoving the wir
emoving the wiremoving the wir
emoving the wir
e leads fre leads fr
e leads fre leads fr
e leads fr
omom
omom
om
terter
terter
ter
minals of H.Vminals of H.V
minals of H.Vminals of H.V
minals of H.V
. T. T
. T. T
. T
ransforransfor
ransforransfor
ransfor
mermer
mermer
mer
..
..
.
RunsRuns
RunsRuns
Runs
(6) PROBLEM(6) PROBLEM
(6) PROBLEM(6) PROBLEM
(6) PROBLEM
No buzzing by touching keysNo buzzing by touching keys
No buzzing by touching keysNo buzzing by touching keys
No buzzing by touching keys
and at the end of cooking.and at the end of cooking.
and at the end of cooking.and at the end of cooking.
and at the end of cooking.
120V120V
120V120V
120V
Replace ControlReplace Control
Replace ControlReplace Control
Replace Control
Circuit BoardCircuit Board
Circuit BoardCircuit Board
Circuit Board
Normal ControlNormal Control
Normal ControlNormal Control
Normal Control
Circuit BoardCircuit Board
Circuit BoardCircuit Board
Circuit Board
RunsRuns
RunsRuns
Runs
Check normal operationCheck normal operation
Check normal operationCheck normal operation
Check normal operation
or Contror Contr
or Contror Contr
or Contr
ol Cirol Cir
ol Cirol Cir
ol Cir
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
d.d.
d.d.
d.
Replace ControlReplace Control
Replace ControlReplace Control
Replace Control
Circuit BoardCircuit Board
Circuit BoardCircuit Board
Circuit Board
Normal ControlNormal Control
Normal ControlNormal Control
Normal Control
Circuit BoardCircuit Board
Circuit BoardCircuit Board
Circuit Board
VV
VV
V
oltage cyclesoltage cycles
oltage cyclesoltage cycles
oltage cycles
on and ofon and of
on and ofon and of
on and of
f.f.
f.f.
f.
aa
aa
a
aa
aa
a
- 10 -
No prNo pr
No prNo pr
No pr
oblem.oblem.
oblem.oblem.
oblem.
MeasurMeasur
MeasurMeasur
Measur
e watere water
e watere water
e water
temperaturetemperature
temperaturetemperature
temperature
rise exactly.rise exactly.
rise exactly.rise exactly.
rise exactly.
120120
120120
120
120120
120120
120
B.B.
B.B.
B.
REMOVING PRIMARREMOVING PRIMAR
REMOVING PRIMARREMOVING PRIMAR
REMOVING PRIMAR
Y INTERLOCK SWITCH ANDY INTERLOCK SWITCH AND
Y INTERLOCK SWITCH ANDY INTERLOCK SWITCH AND
Y INTERLOCK SWITCH AND
INTERLOCK MONITOR SWITCHINTERLOCK MONITOR SWITCH
INTERLOCK MONITOR SWITCHINTERLOCK MONITOR SWITCH
INTERLOCK MONITOR SWITCH
(Figure 10-b)
(1) Disconnect all wire leads from primary interlock and
Interlock monitor switch.
(2) Pull the primary interlock switch or Interlock monitor
switch upward at the same time while pushing the
switch stoppers to allow a space between the
switch body and catches.
(3) Make necessary adjustments or replacement of
switch by the reversing step (2) and check micro-
wave energy leakage according to 1. ADJUSTMENT
PROCEDURES on page 1, after it is replaced with
new one, and check proper operation of it according
to CHECKOUT PROCEDURE FOR SWITCHES on
page 6.
Interlock Switch Replacement - when replacing
faulty switches, be sure switch mounting tabs are
not bent, broken or otherwise deficient in their
ability to secure the switches in place.
7.7.
7.7.
7.
DISASSEMBLDISASSEMBL
DISASSEMBLDISASSEMBL
DISASSEMBL
Y INSTRUCTIONSY INSTRUCTIONS
Y INSTRUCTIONSY INSTRUCTIONS
Y INSTRUCTIONS
OVEN MUST BE DISCONNECTED FROM ELECTRICALOVEN MUST BE DISCONNECTED FROM ELECTRICAL
OVEN MUST BE DISCONNECTED FROM ELECTRICALOVEN MUST BE DISCONNECTED FROM ELECTRICAL
OVEN MUST BE DISCONNECTED FROM ELECTRICAL
OUTLET WHEN MAKING REPLACEMENTS, REPOUTLET WHEN MAKING REPLACEMENTS, REP
OUTLET WHEN MAKING REPLACEMENTS, REPOUTLET WHEN MAKING REPLACEMENTS, REP
OUTLET WHEN MAKING REPLACEMENTS, REP
AIRS,AIRS,
AIRS,AIRS,
AIRS,
ADJUSTMENTS AND ADJUSTMENTS AND
ADJUSTMENTS AND ADJUSTMENTS AND
ADJUSTMENTS AND
CONTINUITY CHECKS BEFORECONTINUITY CHECKS BEFORE
CONTINUITY CHECKS BEFORECONTINUITY CHECKS BEFORE
CONTINUITY CHECKS BEFORE
PROCEEDING WITH ANY REPPROCEEDING WITH ANY REP
PROCEEDING WITH ANY REPPROCEEDING WITH ANY REP
PROCEEDING WITH ANY REP
AIR WORK. AFTERAIR WORK. AFTER
AIR WORK. AFTERAIR WORK. AFTER
AIR WORK. AFTER
DISCONNECTING, WDISCONNECTING, W
DISCONNECTING, WDISCONNECTING, W
DISCONNECTING, W
AIT AAIT A
AIT AAIT A
AIT A
T LEAST 1 MINUTE, UNTILT LEAST 1 MINUTE, UNTIL
T LEAST 1 MINUTE, UNTILT LEAST 1 MINUTE, UNTIL
T LEAST 1 MINUTE, UNTIL
THE CAPTHE CAP
THE CAPTHE CAP
THE CAP
ACITOR IN THE HIGH-VOLACITOR IN THE HIGH-VOL
ACITOR IN THE HIGH-VOLACITOR IN THE HIGH-VOL
ACITOR IN THE HIGH-VOL
TT
TT
T
AGE AREAAGE AREA
AGE AREAAGE AREA
AGE AREA
HAS FULLHAS FULL
HAS FULLHAS FULL
HAS FULL
Y DISCHARGED.Y DISCHARGED.
Y DISCHARGED.Y DISCHARGED.
Y DISCHARGED.
WHEN REPLACING ANY DOOR MICROSWITCH,WHEN REPLACING ANY DOOR MICROSWITCH,
WHEN REPLACING ANY DOOR MICROSWITCH,WHEN REPLACING ANY DOOR MICROSWITCH,
WHEN REPLACING ANY DOOR MICROSWITCH,
REPLACE WITH THE SAME TYPE SWITCH SPECIFIEDREPLACE WITH THE SAME TYPE SWITCH SPECIFIED
REPLACE WITH THE SAME TYPE SWITCH SPECIFIEDREPLACE WITH THE SAME TYPE SWITCH SPECIFIED
REPLACE WITH THE SAME TYPE SWITCH SPECIFIED
ON THE PON THE P
ON THE PON THE P
ON THE P
ARAR
ARAR
AR
TS LISTTS LIST
TS LISTTS LIST
TS LIST
..
..
.
A.A.
A.A.
A.
REMOVING DOOR SENSING SWITCHREMOVING DOOR SENSING SWITCH
REMOVING DOOR SENSING SWITCHREMOVING DOOR SENSING SWITCH
REMOVING DOOR SENSING SWITCH
(Figures 1 on page 1, 10-a)
(1) Disconnect all wire leads from the door sensing
switch. (Figure 1 on page 1)
(2) Remove 2 screws securing the lever stopper.
(3) Push the door sensing switch upward while pressing
adjacent upper switch stopper of lever stopper and
lower switch stopper down (Figure 10-a).
(4) Then remove it by lightly pressing the switch toward
you (Figure 10-a).
(5) Make necessary adjustments or replacements of the
door sensing switch by reversing step (3) and check
microwave energy leakage according to 1.
ADJUSTMENT PROCEDURES on page 1, after it is
replaced with new one, and check proper operation
of it according to CHECKOUT PROCEDURE FOR
SWITCHES on page 6.
- 11 -
Door
Sensing
Switch
Upper
Switch
Stopper
Lower
Switch
Stopper
Figure 10-aFigure 10-a
Figure 10-aFigure 10-a
Figure 10-a
Primary
Interlock
Switch
Interlock
Monitor
Switch
Switch Stoppers
Figure 10-bFigure 10-b
Figure 10-bFigure 10-b
Figure 10-b
Switch Stoppers
C.C.
C.C.
C.
REMOVING BLOWER MOTORREMOVING BLOWER MOTOR
REMOVING BLOWER MOTORREMOVING BLOWER MOTOR
REMOVING BLOWER MOTOR
(Figures 11 (Top View) and 12).
(1) Remove screw securing the stay.
(2) Disconnect all lead wires from the blower motor
and H.V. capacitor.
(3) Remove 2 screws securing the blower base and
disengage 3 hooks from the rear plate of cavity
(Figure 12).
(4) Remove 1 screw securing the blower motor with
the blower base.
D.D.
D.D.
D.
REMOVING MAGNETRONREMOVING MAGNETRON
REMOVING MAGNETRONREMOVING MAGNETRON
REMOVING MAGNETRON
(Figure 11 (Top View))
After removing the blower motor :
(1) Remove duct (mag. exhaust). Remove the screw
securing the stay.
(2) Remove 1 screw securing the thermal protector.
(3) Disconnect 2 lead wires from the magnetron.
(4) Remove 4 screws securing the magnetron to the
waveguide.
(5) Take out Magnetron VERY CAREFULLY.
NOTENOTE
NOTENOTE
NOTE
1. When removing the magnetron from the cavity or
wave guide, use a proper care so that the dome of
the magnetron does not hit any adjacent parts of
microwave oven.
2. Make sure that the contact face of the magnetron
gasket is free from any damage or deformation.
3. Adjust the position of the magnetron properly, so
that it correctly sits in place and the magnetron
gasket is in contact with the mounting rim evenly.
4. While holding the magnetron under this condition,
tighten mounting screws or nuts with your fingers
temporarily.
5. Further tighten the screws or nuts with a box
wrench, giving one or two turns to each of the
screws (or nuts) alternatively so that the
magnetron is mounted on to the bracket uniformly.
6. After replacing the magnetron, be sure to check the
microwave energy leakage with a leakage detector
and confirm the leakage is below 4mW/cm
2
.
- 12 -
Duct (mag. exhaust)
Thermal Protector
Blower Base
Screw
Duct (mag. intake)
Stay
FigurFigur
FigurFigur
Figur
e 11 (Te 11 (T
e 11 (Te 11 (T
e 11 (T
op Vop V
op Vop V
op V
iew)iew)
iew)iew)
iew)
Figure 12Figure 12
Figure 12Figure 12
Figure 12
Hook
Blower Motor
Screws
E.E.
E.E.
E.
REMOVING FUSEREMOVING FUSE
REMOVING FUSEREMOVING FUSE
REMOVING FUSE
Remove the 20A fuse with a screwdriver.
NOTENOTE
NOTENOTE
NOTE
-- When replacing the 20A fuse, be sure to use an exact
repair part.
-- If the 20A fuse blows immediately, check the primary
interlock switch, the relay 2 (on the control circuit board)
and the interlock monitor switch according to,
CHECKOUT PROCEDURECHECKOUT PROCEDURE
CHECKOUT PROCEDURECHECKOUT PROCEDURE
CHECKOUT PROCEDURE
FOR SWITCHESFOR SWITCHES
FOR SWITCHESFOR SWITCHES
FOR SWITCHES on page 6.
And make sure to check the microwave energy leakage
according to,
1. ADJUSTMENT1. ADJUSTMENT
1. ADJUSTMENT1. ADJUSTMENT
1. ADJUSTMENT
PROCEDURES”PROCEDURES”
PROCEDURES”PROCEDURES”
PROCEDURES” on page
1, when the primary interlock switch, the relay 2 or the
interlock monitor switch is adjusted or replaced.
-- If the primary interlock switch, the relay 2 and the interlock
monitor switch operate properly, determine which of the
following is defective : control circuit board, blower motor,
high voltage transformer, high voltage capacitor, high voltage
diode or magnetron.
FF
FF
F
..
..
.
REMOVING CONTROL CIRCUIT BOARDREMOVING CONTROL CIRCUIT BOARD
REMOVING CONTROL CIRCUIT BOARDREMOVING CONTROL CIRCUIT BOARD
REMOVING CONTROL CIRCUIT BOARD
(See exploded view on page 18 and Figure 13)
(1) Remove the connector S1, S102 and the connector for
the relay 2 from the control circuit board.
(2) Remove 1 screw securing the control panel complete to
the oven cavity.
(3) Remove the FPC connector from the connector S101
while grasping up both lever ends of the plastic fastener.
(4) Remove 2 screws securing the control circuit board to
the control base.
(5) Lift up the control circuit board from its lower side and
take it out from the control base.
G.G.
G.G.
G.
REMOVING TOUCH KEY BOARDREMOVING TOUCH KEY BOARD
REMOVING TOUCH KEY BOARDREMOVING TOUCH KEY BOARD
REMOVING TOUCH KEY BOARD
(Figure 14)
After removing the control circuit board :
(1) Remove control base while lifting it up at the right side
and take it out from the control frame.
(2) Remove control sheet which is glued to touch key board.
(3) Remove the touch key board which is held on the control
base bracket with the adhesive tape.
- 13 -
Control Frame
Control Sheet
Touch Key
Board
Figure 14Figure 14
Figure 14Figure 14
Figure 14
Figure 13Figure 13
Figure 13Figure 13
Figure 13
Control Frame
Control Base
J.J.
J.J.
J.
REMOVING CAREMOVING CA
REMOVING CAREMOVING CA
REMOVING CA
VITY COVERVITY COVER
VITY COVERVITY COVER
VITY COVER
(Figure 16)
(1) Remove a screw from the cavity compartment.
K.K.
K.K.
K.
REMOVING TURNTREMOVING TURNT
REMOVING TURNTREMOVING TURNT
REMOVING TURNT
ABLE MOTOR COVERABLE MOTOR COVER
ABLE MOTOR COVERABLE MOTOR COVER
ABLE MOTOR COVER
(Figure 17)
(1) Turn over the oven on its back.
(2) Cut the 6-joints of the bottom plate using diagonal
pliers (nipper).
(3) Separate the motor cover from bottom plate.
(4) Remove 2 screws securing turntable motor to the
cavity and take it out.
Note : Bent the cut joints inside slightly for safety
and be careful of sharp edge.
H.H.
H.H.
H.
REMOVING DOORREMOVING DOOR
REMOVING DOORREMOVING DOOR
REMOVING DOOR
(1) Remove 2 hex nuts securing the upper hinge.
(2) Tilt the top of the door toward you.
(3) Lift up the door to remove it.
NOTENOTE
NOTENOTE
NOTE
- After replacing the door, be sure to check that the
primary interlock switch, the door sensing switch
and the interlock monitor switch operate normally.
(See page 1).
- After replacing the door, check for microwave energy
leakage with a leakage detector. Microwave energy
leakage must be below the limit of 4mW/cm
2
to
allow for measurement uncertainty.
I.I.
I.I.
I.
DISASSEMBLING DOORDISASSEMBLING DOOR
DISASSEMBLING DOORDISASSEMBLING DOOR
DISASSEMBLING DOOR
(Figure 15)
(1) Insert a thin flat-blade screwdriver between the
choke dielectric and the door main frame and lift
up the choke dielectric to release hooks one by
one. (Figure 15).
(2) Remove the choke dielectric.
(3) To detach the door cover, insert a thin flat-blade
screwdriver between door cover and door panel
and release the projections inside door cover.
(4) To detach the door panel, insert a thin flat-blade
screwdriver between the door cover and door
main frame.
NOTENOTE
NOTENOTE
NOTE
- The choke dielectric may be damaged when
it is removed. When reinstalling it replace it
with new ones if it is damaged.
- After installing the door in place, check for
microwave energy leakage with a detector.
Microwave energy leakage must be below the
limit of 4mW/cm
2
to allow for measurement
uncertainty.
- 14 -
Figure 17Figure 17
Figure 17Figure 17
Figure 17
Motor Cover
6 Joints
Bottom Plate
Screw
Cavity Cover
Figure 16Figure 16
Figure 16Figure 16
Figure 16
Hooks
Hooks
Hooks
Hooks
Door
Main
Frame
Choke
Dielectric
Figure 15Figure 15
Figure 15Figure 15
Figure 15
- 15 -
8.8.
8.8.
8.
EXPLODED VIEW AND PEXPLODED VIEW AND P
EXPLODED VIEW AND PEXPLODED VIEW AND P
EXPLODED VIEW AND P
ARAR
ARAR
AR
TS LISTTS LIST
TS LISTTS LIST
TS LIST
CAVITY PARTS
* * * ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED
BY A TRIPLE ASTERISK (***).
Key
Part No. Description Qty
No.
1 617 214 9172 Cabinet 1
2 411 082 5201 SCR TPG TRS 4 x 10 Z1 8
3 411 160 6007 SCR TPG TRS + SRT 4 x 10 Z1 2
4 617 171 6863 Power Cord 1
5 411 160 6106 SCR S-T TRS + SRT 4 x 10 Z1 1
6 617 204 9366 Oven Cavity*** (Not Service Part) 1
7 617 124 1068 Gear Motor 1
8 411 010 5808 SCR EVR PAN 4 x 10 Z1 2
9 617 138 5601 Bottom Plate*** (Not Service Part) 1
10 617 221 6089 Plastic Foot with Canoe Clip 4
11 411 011 0802 Bolt Hex + SW + W5 x 14 Z1*** 2
12 617 180 6137 Hinge, Lower*** 1
13 411 089 2500 Washer F 5 x 10 x 0.8 1
Key
Part No. Description Qty
No.
14 617 120 8481 Insulation Sheet 1
15 617 144 4476 Turn Table Shaft 1
16 617 204 9489 Roller Base Assy 1
17 617 073 5889 Rotating Tray 1
18 617 204 9403 Antenna Complete 1
19 617 162 1938 Cavity Cover 1
20 411 069 1707 SCR TPG TRS 4 x 6 DA 1
21 411 006 6604 SCR TPG PAN 3 x 6 Z1 1
22 617 200 0381 Thermal Fuse 167
o
C1
23 617 080 5315 Special Washer 1
24
25
26 617 208 4176 Special Screw 2
NoteNote
NoteNote
Note : Screws securing Cabinet cannot be removed by regular screwdriver.
KEY NO. 26. SPECIAL SCREW REQUIRES SPECIAL DRIVER
(PART NO. 617 209 3734) OR SPECIAL BIT (PART NO. 617 209 3741)
Key
Part No. Description Q’ty
No.
17 617 197 7417 Blower Motor 1
18 411 082 5201 SCR TPG TRS 4 x 10 Z1 2
19 617 196 8507 Blower Fan 1
20 617 245 6256 Latch Lever*** 1
21 617 167 0523 Micro Switch,*** Primary Interlock 1
V-5P030FBX129
22 617 004 5575 Micro Switch,*** Interlock Monitor 1
V-5220DZ
23 617 167 0523 Micro Switch,*** Door Sensing 1
V-5P030FBX129
24
25 617 245 6096 Lever Stopper*** 1
26 411 102 5907 SCR ETG TRS 4 x 10 N2 2
27 411 129 5805 SCR TPG BIN 3 x 10 Z1 1
28 617 117 3505 Harness, Door Sensing 1
29 617 124 3796 Lead Wire Ass’y 1
Key
Part No. Description Q’ty
No.
1 411 082 5201 SCR TPG TRS 4 x 10 Z1 9
2 617 200 9278 H.V Transformer,*** YS-P360 1
3 617 199 8283 Stay, Cavity & Magnetron 1
4 411 006 6604 SCR TPG PAN 3 x 6 Z1 1
5 617 124 1235 Thermostat, Magnetron 122
o
C1
6 415 002 6101 Magnetron, 2M219H(B)A*** 1
7 423 021 3704 Fuse, 250V 20A 1
8 617 137 8269 Fuse Holder 1
9 617 201 6382 Lead Wire Ass’y (including Diode) 1
10 617 162 1990 Space Partition (Blower) 1
11 617 197 6670 H.V Capacitor including Resistor, 1
0.97uf 2.2KV
12 617 182 2373 Capacitor Band 1
13 411 011 5609 Bolt Hex 4 x 10 Z1 4
14 617 198 4996 Duct, Mag. Exhaust 1
15 617 188 0205 Lamp, 120V 20W 1
16 617 124 1280 Lamp Socket 1
SWITCHES AND MICROWAVE PARTS
- 16 -
*** ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED
BY A TRIPLE ASTERISK (***).
Key
Part No
. Description Qty
No.
5 617 124 0931 Door Sheet 1
6 411 054 1903 Nut Hex + Flg W / SRT 5*** 2
7 617 180 6151 Hinge, Upper*** 1
8 411 011 0802 Bolt Hex + SW + W 5 x 14*** 2
9 617 101 1494 Spring*** 1
10 617 179 2478 Door Latch*** 1
Key
Part No. Description Qty
No.
1 617 212 8368 Door Cover*** 1
2 617 181 4170 Door Panel*** 1
3 617 199 2434 Door Main Frame*** (Also 1
order Door Sheet when replacing
Door Main Frame)
4 617 124 0948 Choke Dielectric*** 1
- 17 -
DOOR PARTS
* * * ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED
BY A TRIPLE ASTERISK (***).
Key
Part No. Description Qty
No.
617 220 9562 Operating Instructions 1
(English / Spanish)
617 221 8144 Carton Box Complete 1
617 220 9470 Name Plate 1
- 18 -
PRINTED MATTER (Items Not Illustrated)
CONTROL PANEL PARTS
* * * ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED
BY A TRIPLE ASTERISK (***).
Key
Part No. Description Qty
No.
4 617 151 4377 Control Base*** 1
5 411 160 6205 SCR TPG TRS+SRT 4 x 10 Z1 1
6 617 220 2990 Power & Control Circuit Board*** 1
7 411 129 5805 SCR TPG BIN 3 x 10 Z1 2
8 617 080 9559 Spring, Door Release Lever*** 1
9 617 179 5929 Door Release Lever*** 1
Key
Part No. Description Qty
No.
1 617 220 9500 Control Sheet*** (Also order 1
Touch Key Board when replacing
Control Sheet)
2 617 219 4554 Touch Key Board*** (Also order 1
Control Sheet when replacing
Touch Key Board)
3 617 179 5981 Control Frame*** 1
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Sanyo EM-N107BS User manual

Category
Microwaves
Type
User manual
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