Sanyo EMP410WS Schematic

Page 1
File No :File No :
File No :
File No :File No :
SER SER
SER
SER SER
VICE MANUALVICE MANUAL
VICE MANUAL
VICE MANUALVICE MANUAL
Micr Micr
Micr
Micr Micr
owave Ovenowave Oven
owave Oven
owave Ovenowave Oven
Pr Pr
oduct Code No.oduct Code No.
Pr
oduct Code No.
Pr Pr
oduct Code No.oduct Code No.
EM-P410WS EM-P410WS

EM-P410WS

EM-P410WS EM-P410WS
437 450 34437 450 34
437 450 34
437 450 34437 450 34
(U.S.A.)(U.S.A.)
(U.S.A.)
(U.S.A.)(U.S.A.)
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
WW
ARNING TO SERARNING TO SER
W
ARNING TO SER
WW
ARNING TO SERARNING TO SER
VICE TECHNICIANSVICE TECHNICIANS
VICE TECHNICIANS
VICE TECHNICIANSVICE TECHNICIANS
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 per formance standard should be performed
on each oven prior to release to the owner.
REFERENCE NO. SM-860236
Page 2
CAUTIONCAUTION

CAUTION

CAUTIONCAUTION
For micrFor micr
For micr
For micrFor micr
On every service calls, check for microwave energy emission, must be made according to the following manner.
MeasurMeasur
Measur
MeasurMeasur
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 ±9oF) placed within the cavity at the center.
NOTE : The water container must be a 600 milliliter beaker
A properly operating door and seal assembly will normally register emission on greater than 4mW/cm 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 micrmicr
micr
micrmicr
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.
owave enerowave ener
owave ener
owave enerowave ener
ement of enerement of ener
ement of ener
ement of enerement of ener
and made of an electrically none conductive material such as glass or plastic. The cook tray must be in place when measuring emission.
owave enerowave ener
owave ener
owave enerowave ener
gy emissiongy emission
gy emission
gy emissiongy emission
gy emissiongy emission
gy emission
gy emissiongy emission
gy emission argy emission ar
gy emission ar
gy emission argy emission ar
e minimal.e minimal.
e minimal.
e minimal.e minimal.
o±5o
2
celsius (68
to allow for
thatthat
that
thatthat
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 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.
2
must be reported to Dept. of Service for
- i -
Page 3
- TABLE OF CONTENTS -
Adjustment Procedures ................................................... 1
Specifications .................................................................. 2
Power Output Measurement ........................................... 2
Precautions and Repair Service Tips .............................. 2
Circuit Diagram ............................................................... 3
1.1.
ADJUSTMENT PROCEDURESADJUSTMENT PROCEDURES
1.
ADJUSTMENT PROCEDURES
1.1.
ADJUSTMENT PROCEDURESADJUSTMENT PROCEDURES
TT
O AO A
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
T
O A
VOID POSSIBLE EXPOSURE TO MICROW
TT
O AO A
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
ENERGY LEAKAGE, THE FOLLOWINGENERGY LEAKAGE, THE FOLLOWING
ENERGY LEAKAGE, THE FOLLOWING
ENERGY LEAKAGE, THE FOLLOWINGENERGY LEAKAGE, THE FOLLOWING ADJUSTMENT OF THE INTERLOCK SWITCHESADJUSTMENT OF THE INTERLOCK SWITCHES
ADJUSTMENT OF THE INTERLOCK SWITCHES
ADJUSTMENT OF THE INTERLOCK SWITCHESADJUSTMENT OF THE INTERLOCK SWITCHES SHOULD BE MADE ONLSHOULD BE MADE ONL
SHOULD BE MADE ONL
SHOULD BE MADE ONLSHOULD BE MADE ONL SERSER
VICE PERSONNEL.VICE PERSONNEL.
SER
VICE PERSONNEL.
SERSER
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
PRIMAR
PRIMARPRIMAR MONITOR SWITCH AND DOOR SENSING SWITCHMONITOR SWITCH AND DOOR SENSING SWITCH
MONITOR SWITCH AND DOOR SENSING SWITCH
MONITOR SWITCH AND DOOR SENSING SWITCHMONITOR SWITCH AND DOOR SENSING SWITCH ADJUSTMENTADJUSTMENT
ADJUSTMENT
ADJUSTMENTADJUSTMENT (Figure 1)(Figure 1)
(Figure 1)
(Figure 1)(Figure 1)
Y INTERLOCK SWITCH, INTERLOCKY INTERLOCK SWITCH, INTERLOCK
Y INTERLOCK SWITCH, INTERLOCK
Y INTERLOCK SWITCH, INTERLOCKY INTERLOCK SWITCH, INTERLOCK
Y BY AUTHORIZEDY BY AUTHORIZED
Y BY AUTHORIZED
Y BY AUTHORIZEDY BY AUTHORIZED
AA
VEVE
A
VE
AA
VEVE
Test Procedures and Troubleshooting .................... 4 ~ 10
Disassembly Instructions ....................................... 11 ~ 14
Exploded View and Parts List ................................ 15 ~ 20
Overall Circuit Diagram .......................................... 21
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.
Door Latch
Lever Stopper
Door Sensing Switch
(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/cm2 to allow for measurement
uncertainty when measured with a detector.
(All service adjustments must be made for
minimum microwave energy leakage readings.)
Interlock Monitor Switch
Screws
- 1 -
Figure 1Figure 1
Figure 1
Figure 1Figure 1
Latch Lever
Primary Interlock Switch
Page 4
2.2.
SPECIFICASPECIFICA
2.
SPECIFICA
2.2.
SPECIFICASPECIFICA
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
Timer .....................................Electronic Digital, up to
Overall Dimensions ................ 205/8”(W) x 161/2”(D) x 113/8”(H)
Oven Cavity Size .................. 133/4”(W) x 145/8”(D) x 81/2”(H)
Turn Table Diameter ..............107/8”
Effective Capacity of
Oven Cavity .......................... 1.1 Cubic Feet.
Net Weight ........................... Approx. 34.5 Lbs.
3.3.
POWER OUTPUT MEASUREMENTPOWER OUTPUT MEASUREMENT
3.
POWER OUTPUT MEASUREMENT
3.3.
POWER OUTPUT MEASUREMENTPOWER OUTPUT MEASUREMENT
NOTENOTE
NOTE
NOTENOTE
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 x ∆t Where ∆t is an average temperature rise in degrees Centigrade.
(6) Power Output shall be in the following range :
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.
TIONSTIONS
TIONS
TIONSTIONS
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.
99 min. 99 sec.
Average Temperature Rise Power Output
4.4.
PRECAUTIONS AND REPPRECAUTIONS AND REP
4.
PRECAUTIONS AND REP
4.4.
PRECAUTIONS AND REPPRECAUTIONS AND REP
PRELIMINARPRELIMINAR
PRELIMINAR
PRELIMINARPRELIMINAR A.A.
SINCE NEARLSINCE NEARL
A.
SINCE NEARL
A.A.
SINCE NEARLSINCE NEARL CUITS OF THIS MICROWCUITS OF THIS MICROW
CUITS OF THIS MICROW
CUITS OF THIS MICROWCUITS OF THIS MICROW BE CARRIED OUT WITH GREABE CARRIED OUT WITH GREA
BE CARRIED OUT WITH GREA
BE CARRIED OUT WITH GREABE CARRIED OUT WITH GREA
B.B.
TO ATO A
B.
TO A
B.B.
TO ATO A ENERGY LEAKAGE, THE FOLLOWING PRECAUTIONSENERGY LEAKAGE, THE FOLLOWING PRECAUTIONS
ENERGY LEAKAGE, THE FOLLOWING PRECAUTIONS
ENERGY LEAKAGE, THE FOLLOWING PRECAUTIONSENERGY LEAKAGE, THE FOLLOWING PRECAUTIONS MUST BE TMUST BE T
MUST BE T
MUST BE TMUST BE T
(1) Before the power is applied :
(a) Open and close door several times to make sure the
(b) Make sure the perforated screen and the choke die-
(2) After the power is applied :
(a) Open and close the door to see if the interlock mech-
(b) Check microwave energy leakage with a leakage
(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
NOTE : (e) Make sure that there are no defective parts in the
(f) Make sure there are no defective parts in the
(4) The following items should be checked after the unit
is repaired : (a) The interlock monitor switch is connected correctly
(b) The magnetron gasket on the magnetron is properly
(c) Waveguide and oven cavity are intact (no leakage of
(d) The door can be properly closed and the safety
(e) The oven must be stopped when the door is opened
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
The oven must not be operated with any of the aboveThe oven must not be operated with any of the above components rcomponents r
components r
components rcomponents r
YY
Y
YY
Y 2,000 VOLY 2,000 VOL
Y 2,000 VOL
Y 2,000 VOLY 2,000 VOL
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
AKEN BEFORE SERAKEN BEFORE SER
AKEN BEFORE SER
AKEN BEFORE SERAKEN BEFORE SER
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).
lectric of the door are correctly mounted.
anism operates properly.
detector and confirm the energy leakage should be no greater than 4mW/cm uncertainty.
visible damage to the oven that may cause microwave energy leakage.
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.
interlock mechanism.
microwave generating and transmission assembly. (especially waveguide).
and firmly.
positioned.
microwave energy).
switches work properly.
or the time is up.
emoved or bypassed.emoved or bypassed.
emoved or bypassed.
emoved or bypassed.emoved or bypassed.
AIR SERAIR SER
AIR SER
AIR SERAIR SER
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-
AA
VE OVEN, REPVE OVEN, REP
A
VE OVEN, REP
AA
VE OVEN, REPVE OVEN, REP
T CARE.T CARE.
T CARE.
T CARE.T CARE.
VICING.VICING.
VICING.
VICING.VICING.
2
to allow for measurement
VICE TIPSVICE TIPS
VICE TIPS
VICE TIPSVICE TIPS
AIRS SHOULDAIRS SHOULD
AIRS SHOULD
AIRS SHOULDAIRS SHOULD
AA
VEVE
A
VE
AA
VEVE
- 2 -
Page 5
5. CIRCUIT DIAGRAM
Figure 2Figure 2
Figure 2
Figure 2Figure 2
WIRING COLOR
O : ORANGE B K : BLACK
R : RED BL : BLUE
W : WHITE Y : YELLOW
- 3 -
Page 6
6. TEST PROCEDURES AND TROUBLESHOOTING6. TEST PROCEDURES AND TROUBLESHOOTING
6. TEST PROCEDURES AND TROUBLESHOOTING
6. TEST PROCEDURES AND TROUBLESHOOTING6. TEST PROCEDURES AND TROUBLESHOOTING
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
- DISCONNECT THE POWER SUPPL- DISCONNECT THE POWER SUPPL
- DISCONNECT THE POWER SUPPL
- DISCONNECT THE POWER SUPPL- DISCONNECT THE POWER SUPPL
THE WTHE W
ALL OUTLET WHENEVER REMOVING THEALL OUTLET WHENEVER REMOVING THE
THE W
ALL OUTLET WHENEVER REMOVING THE
THE WTHE W
ALL OUTLET WHENEVER REMOVING THEALL OUTLET WHENEVER REMOVING THE
CABINET FROM THE UNITCABINET FROM THE UNIT
CABINET FROM THE UNIT
CABINET FROM THE UNITCABINET FROM THE UNIT TESTS ONLTESTS ONL
TESTS ONL
TESTS ONLTESTS ONL VOLVOL
TT
VOL
T
VOLVOL
TT
WIRES FROM THE PRIMARWIRES FROM THE PRIMAR
WIRES FROM THE PRIMAR
WIRES FROM THE PRIMARWIRES FROM THE PRIMAR HIGH VOLHIGH VOL
HIGH VOL
HIGH VOLHIGH VOL
A.A.
TEST PROCEDURESTEST PROCEDURES
A.
TEST PROCEDURES
A.A.
TEST PROCEDURESTEST PROCEDURES
Y AFTER DISCHARGING THE HIGHY AFTER DISCHARGING THE HIGH
Y AFTER DISCHARGING THE HIGH
Y AFTER DISCHARGING THE HIGHY AFTER DISCHARGING THE HIGH
AGE CAPAGE CAP
AGE CAP
AGE CAPAGE CAP
ACITOR AND REMOVING THE LEADACITOR AND REMOVING THE LEAD
ACITOR AND REMOVING THE LEAD
ACITOR AND REMOVING THE LEADACITOR AND REMOVING THE LEAD
TT
AGE TRANSFORMER. (SEE FIGURE 3)AGE TRANSFORMER. (SEE FIGURE 3)
T
AGE TRANSFORMER. (SEE FIGURE 3)
TT
AGE TRANSFORMER. (SEE FIGURE 3)AGE TRANSFORMER. (SEE FIGURE 3)
Y CORD FROMY CORD FROM
Y CORD FROM
Y CORD FROMY CORD FROM
, PROCEED WITH THE, PROCEED WITH THE
, PROCEED WITH THE
, PROCEED WITH THE, PROCEED WITH THE
Y WINDING OF THEY WINDING OF THE
Y WINDING OF THE
Y WINDING OF THEY WINDING OF THE
Secondary
Windings
Filament Windings
Primary
Windings
Figure 3Figure 3
Figure 3
Figure 3Figure 3
COMPONENT COMPONENT
COMPONENT
COMPONENT COMPONENT
MAGNETRONMAGNETRON
MAGNETRON
MAGNETRONMAGNETRON
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
1)1)
Check for rCheck for r
1)
Check for r
1)1)
Check for rCheck for r terter
minals of the magnetrminals of the magnetr
ter
minals of the magnetr
terter
minals of the magnetrminals of the magnetr
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.
Ohm-meterOhm-meter
Ohm-meter
Ohm-meterOhm-meter
2)2)
Check for rCheck for r
2)
Check for r
2)2)
Check for rCheck for r terter
minal of the magnetrminal of the magnetr
ter
minal of the magnetr
terter
minal of the magnetrminal of the magnetr
grgr
ound with an ohm-meter on highest scale.ound with an ohm-meter on highest scale.
gr
ound with an ohm-meter on highest scale.
grgr
ound with an ohm-meter on highest scale.ound with an ohm-meter on highest scale.
Ohm-meterOhm-meter
Ohm-meter
Ohm-meterOhm-meter
1)1)
Measure the resistance :Measure the resistance :
1)
Measure the resistance :
1)1)
Measure the resistance :Measure the resistance : WW
ith an ohm-meter on R x 1 scale.ith an ohm-meter on R x 1 scale.
W
ith an ohm-meter on R x 1 scale.
WW
ith an ohm-meter on R x 1 scale.ith an ohm-meter on R x 1 scale.
a.a.
a.
a.a. b.b.
b.
b.b. c.c.
c.
c.c.
esistance : Acresistance : Acr
esistance : Acr
esistance : Acresistance : Acr
esistance : Between each filamentesistance : Between each filament
esistance : Between each filament
esistance : Between each filamentesistance : Between each filament
Primary winding :Primary winding :
Primary winding :
Primary winding :Primary winding : Filament winding :Filament winding :
Filament winding :
Filament winding :Filament winding : Secondary winding :Secondary winding :
Secondary winding :
Secondary winding :Secondary winding :
oss the filamentoss the filament
oss the filament
oss the filamentoss the filament
on with an ohm-meteron with an ohm-meter
on with an ohm-meter
on with an ohm-meteron with an ohm-meter
on and the chassison and the chassis
on and the chassis
on and the chassison and the chassis
Figure 4Figure 4
Figure 4
Figure 4Figure 4
Figure 5Figure 5
Figure 5
Figure 5Figure 5
RESUL RESUL
RESUL
RESUL RESUL
Normal reading :Normal reading :
Normal reading :
Normal reading :Normal reading :
Less than 1 ohm.Less than 1 ohm.
Less than 1 ohm.
Less than 1 ohm.Less than 1 ohm.
Normal reading :Normal reading :
Normal reading :
Normal reading :Normal reading :
Infinite ohms.Infinite ohms.
Infinite ohms.
Infinite ohms.Infinite ohms.
Normal readings :Normal readings :
Normal readings :
Normal readings :Normal readings :
ApprAppr
Appr
ApprAppr Less than 1 ohm.Less than 1 ohm.
Less than 1 ohm.
Less than 1 ohm.Less than 1 ohm. ApprAppr
Appr
ApprAppr
TT
T
TT
oximately 0.32 ohms.oximately 0.32 ohms.
oximately 0.32 ohms.
oximately 0.32 ohms.oximately 0.32 ohms.
oximately 75.2 ohms.oximately 75.2 ohms.
oximately 75.2 ohms.
oximately 75.2 ohms.oximately 75.2 ohms.
HIGH-VOLHIGH-VOL
HIGH-VOL
HIGH-VOLHIGH-VOL
TRANSFORMERTRANSFORMER
TRANSFORMER
TRANSFORMERTRANSFORMER
TT
AGEAGE
T
AGE
TT
AGEAGE
2)2)
Measure the resistance :Measure the resistance :
2)
Measure the resistance :
2)2)
Measure the resistance :Measure the resistance : WW
ith an ohm-meter on highest scale.ith an ohm-meter on highest scale.
W
ith an ohm-meter on highest scale.
WW
ith an ohm-meter on highest scale.ith an ohm-meter on highest scale.
a.a.
Primary winding to grPrimary winding to gr
a.
Primary winding to gr
a.a.
Primary winding to grPrimary winding to gr
bb
Filament winding to grFilament winding to gr
b
Filament winding to gr
bb
Filament winding to grFilament winding to gr
Ohm-meterOhm-meter
Ohm-meter
Ohm-meterOhm-meter
Note :Note :
Note :
Note :Note :
Remove varRemove var
Remove var
Remove varRemove var measurmeasur
measur
measurmeasur
ed point.ed point.
ed point.
ed point.ed point.
nish ofnish of
nish of
nish ofnish of
ound.ound.
ound.
ound.ound.
ound.ound.
ound.
ound.ound.
- 4 -
Figure 6Figure 6
Figure 6
Figure 6Figure 6
Normal readings :Normal readings :
Normal readings :
Normal readings :Normal readings :
Infinite ohms.Infinite ohms.
Infinite ohms.
Infinite ohms.Infinite ohms. Infinite ohms.Infinite ohms.
Infinite ohms.
Infinite ohms.Infinite ohms.
Page 7
COMPONENT COMPONENT
COMPONENT
COMPONENT COMPONENT
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
RESUL RESUL
RESUL
RESUL RESUL
TT
T
TT
HIGH-VOLHIGH-VOL
HIGH-VOL
HIGH-VOLHIGH-VOL CAPCAP
ACITORACITOR
CAP
ACITOR
CAPCAP
ACITORACITOR
includingincluding
including
includingincluding BLEEDERBLEEDER
BLEEDER
BLEEDERBLEEDER RESISTORRESISTOR
RESISTOR
RESISTORRESISTOR
HIGH-VOLHIGH-VOL
HIGH-VOL
HIGH-VOLHIGH-VOL DIODEDIODE
DIODE
DIODEDIODE
TT
AGEAGE
T
AGE
TT
AGEAGE
TT
AGEAGE
T
AGE
TT
AGEAGE
MeasurMeasur
Measur
MeasurMeasur 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.
MeasurMeasur
Measur
MeasurMeasur 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.
e the re the r
e the r
e the re the r
Ohm-meterOhm-meter
Ohm-meter
Ohm-meterOhm-meter
e the re the r
e the r
e the re the r
esistance : Acresistance : Acr
esistance : Acr
esistance : Acresistance : Acr
esistance : Acresistance : Acr
esistance : Acr
esistance : Acresistance : Acr
Ohm-meterOhm-meter
Ohm-meter
Ohm-meterOhm-meter
oss two teross two ter
oss two ter
oss two teross two ter
oss two teross two ter
oss two ter
oss two teross two ter
minalsminals
minals
minalsminals
Figure 7Figure 7
Figure 7
Figure 7Figure 7
minalsminals
minals
minalsminals
Normal reading :Normal reading :
Normal reading :
Normal reading :Normal reading :
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 r
and gradually rand gradually r
Abnormal reading :Abnormal reading :
Abnormal reading :
Abnormal reading :Abnormal reading :
Indicates continuity or 10 meg-ohmsIndicates continuity or 10 meg-ohms
Indicates continuity or 10 meg-ohms
Indicates continuity or 10 meg-ohmsIndicates continuity or 10 meg-ohms frfr
om the beginning.om the beginning.
fr
om the beginning.
frfr
om the beginning.om the beginning.
Normal reading :Normal reading :
Normal reading :
Normal reading :Normal reading :
Indicates about the middle position inIndicates about the middle position in
Indicates about the middle position in
Indicates about the middle position inIndicates about the middle position in one dirone dir
ection (forwarection (forwar
one dir
ection (forwar
one dirone dir
ection (forwarection (forwar
infinite ohms in the rinfinite ohms in the r
infinite ohms in the r
infinite ohms in the rinfinite ohms in the r using meter which is prusing meter which is pr
using meter which is pr
using meter which is prusing meter which is pr 9 volt battery.9 volt battery.
9 volt battery.
9 volt battery.9 volt battery.
- 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 forwar
even in a forwareven in a forwar low measuring voltage of meter doeslow measuring voltage of meter does
low measuring voltage of meter does
low measuring voltage of meter doeslow measuring voltage of meter does not allow the meter currnot allow the meter curr
not allow the meter curr
not allow the meter currnot allow the meter curr thrthr
ough the high voltage diode.ough the high voltage diode.
thr
ough the high voltage diode.
thrthr
ough the high voltage diode.ough the high voltage diode.
eturetur
etur
eturetur
NOTENOTE
NOTE
NOTENOTE
d dird dir
d dir
d dird dir
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.
d dird dir
ection) andection) and
d dir
ection) and
d dird dir
ection) andection) and
everse direverse dir
everse dir
everse direverse dir
ection becauseection because
ection because
ection becauseection because
ection,ection,
ection,
ection,ection,
ovided with aovided with a
ovided with a
ovided with aovided with a
ent to passent to pass
ent to pass
ent to passent to pass
CONTROLCONTROL
CONTROL
CONTROLCONTROL CIRCUITCIRCUIT
CIRCUIT
CIRCUITCIRCUIT
BOARDBOARD
BOARD
BOARDBOARD
MeasurMeasur
Measur
MeasurMeasur TP-2 and GrTP-2 and Gr
TP-2 and Gr
TP-2 and GrTP-2 and Gr page 19).page 19).
page 19).
page 19).page 19).
- Pr- Pr
- Pr
- Pr- Pr TT
T
TT values is difvalues is dif
values is dif
values is difvalues is dif
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,
ound. (See Contround. (See Contr
ound. (See Contr
ound. (See Contround. (See Contr
NOTENOTE
NOTE
NOTENOTE
oceed with the check of the Step-Downoceed with the check of the Step-Down
oceed with the check of the Step-Down
oceed with the check of the Step-Downoceed with the check of the Step-Down
ransforransfor
mermer
ransfor
ransforransfor
, to see if any one of the measur, to see if any one of the measur
mer
, to see if any one of the measur
mermer
, to see if any one of the measur, to see if any one of the measur ferfer
ent frent fr
fer
ferfer
om the specified values.om the specified values.
ent fr
om the specified values.
ent frent fr
om the specified values.om the specified values.
ol Cirol Cir
ol Cir
ol Cirol Cir
cuit Boarcuit Boar
cuit Boar
cuit Boarcuit Boar
- 5 -
Figure 8Figure 8
Figure 8
Figure 8Figure 8
d ond on
d on
d ond on
eded
ed
eded
Abnormal reading :Abnormal reading :
Abnormal reading :
Abnormal reading :Abnormal reading :
Indicates continuity or infinite ohmsIndicates continuity or infinite ohms
Indicates continuity or infinite ohms
Indicates continuity or infinite ohmsIndicates continuity or infinite ohms in both dirin both dir
in both dir
in both dirin both dir
TT
estest
T
est
TT
estest
PointPoint
Point
PointPoint
VV
oltageoltage
V
oltage
VV
oltageoltage
ections.ections.
ections.
ections.ections.
TP-1 TP-1
TP-1
TP-1 TP-1
-5V -5V
-5V
-5V -5V DC DC
DC
DC DC
TP-2TP-2
TP-2
TP-2TP-2
-15V-15V
-15V
-15V-15V DC DC
DC
DC DC
Page 8
COMPONENT COMPONENT
COMPONENT
COMPONENT COMPONENT
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
RESUL RESUL
RESUL
RESUL RESUL
TT
T
TT
TOUCH KEYTOUCH KEY
TOUCH KEY
TOUCH KEYTOUCH KEY BOARDBOARD
BOARD
BOARDBOARD
065
1
2
MeasurMeasur
Measur
MeasurMeasur FPC connector after rFPC connector after r
FPC connector after r
FPC connector after rFPC connector after r (Figure 9).(Figure 9).
(Figure 9).
(Figure 9).(Figure 9).
NOTE NOTE
NOTE
NOTE NOTE
- When r- When r
- When r
- When r- When r sure the holes on the connector are properlysure the holes on the connector are properly
sure the holes on the connector are properly
sure the holes on the connector are properlysure the holes on the connector are properly 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.
7
8
e the re the r
esistance between teresistance between ter
e the r
esistance between ter
e the re the r
esistance between teresistance between ter
emoving it fremoving it fr
emoving it fr
emoving it fremoving it fr
econnecting the FPC connectoreconnecting the FPC connector
econnecting the FPC connector
econnecting the FPC connectoreconnecting the FPC connector
MAMA
TRIX CIRCUIT FORTRIX CIRCUIT FOR
MA
TRIX CIRCUIT FOR
MAMA
TRIX CIRCUIT FORTRIX CIRCUIT FOR
TOUCH KEY BOARD TOUCH KEY BOARD
TOUCH KEY BOARD
TOUCH KEY BOARD TOUCH KEY BOARD
FPC CONNECTORFPC CONNECTOR
FPC CONNECTOR
FPC CONNECTORFPC CONNECTOR
TOTAL
DEFROST
POWER
LEVEL
QUICK
ON
QUICK
DEFROST
SOUP /
BEVERAGE
POTATO
FROZEN
ENTREE
minals ofminals of
minals of
minals ofminals of
om S101.om S101.
om S101.
om S101.om S101.
, make, make
, make
, make, make
MORE + LESS -
KITCHEN
TIMER
WhenWhen
When
WhenWhen touchedtouched
touched
ResistanceResistance
Resistance
ResistanceResistance valuevalue
value
valuevalue
When checking “STWhen checking “ST
When checking “ST
When checking “STWhen checking “ST 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.
Ohm-meterOhm-meter
Ohm-meter
Ohm-meterOhm-meter
touchedtouched Less thanLess than
Less than
Less thanLess than 1K Ohms1K Ohms
1K Ohms
1K Ohms1K Ohms
ARAR
AR
ARAR
When notWhen not
When not
When notWhen not touchedtouched
touched
touchedtouched More thanMore than
More than
More thanMore than 1 MEG Ohm1 MEG Ohm
1 MEG Ohm
1 MEG Ohm1 MEG Ohm
T” key, connectT” key, connect
T” key, connect
T” key, connectT” key, connect
3
4
Disconnect the lead wirDisconnect the lead wir
Disconnect the lead wir
Disconnect the lead wirDisconnect the lead wir to its terto its ter
to its ter
to its terto its ter
SWITCHES SWITCHES
SWITCHES
SWITCHES SWITCHES (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
Door Sensing Door Sensing
Door Sensing
Door Sensing Door Sensing
Interlock Monitor Interlock Monitor
Interlock Monitor
Interlock Monitor Interlock Monitor
minals.minals.
minals.
minals.minals.
9
STOP /
CLEAR
VEGETABLE
es fres fr
es fr
es fres fr
PIZZA START
FRESH
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
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
CLOCK POPCORN
CHECKOUT PROCEDURE FOR SWITCHESCHECKOUT PROCEDURE FOR SWITCHES
CHECKOUT PROCEDURE FOR SWITCHES
CHECKOUT PROCEDURE FOR SWITCHESCHECKOUT PROCEDURE FOR SWITCHES
CHECKOUT PROCEDURES CHECKOUT PROCEDURES
CHECKOUT PROCEDURES
CHECKOUT PROCEDURES CHECKOUT PROCEDURES
TT
erer
minals “COM” and “NO”minals “COM” and “NO”
T
er
minals “COM” and “NO”
TT
erer
minals “COM” and “NO”minals “COM” and “NO”
TT
erer
minals “COM” and “NC”minals “COM” and “NC”
T
er
minals “COM” and “NC”
TT
erer
minals “COM” and “NC”minals “COM” and “NC”
FROZEN
VEGETABLE
ADD
30 SEC
CUSTOM
PROGRAMS
TERMINALS OF FPC CONNECTORTERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTORTERMINALS OF FPC CONNECTOR
DOOR OPEN DOOR OPEN
DOOR OPEN
DOOR OPEN DOOR OPEN
DOOR CLOSED DOOR CLOSED
DOOR CLOSED
DOOR CLOSED DOOR CLOSED
Figure 9Figure 9
Figure 9
Figure 9Figure 9
CAUTION :CAUTION :
CAUTION :
CAUTION :CAUTION :
After checking the switches, make surAfter checking the switches, make sur
After checking the switches, make sur
After checking the switches, make surAfter checking the switches, make sur
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.
e that the interlock monitor switch is pre that the interlock monitor switch is pr
e that the interlock monitor switch is pr
e that the interlock monitor switch is pre that the interlock monitor switch is pr
- 6 -
operly connected accoroperly connected accor
operly connected accor
operly connected accoroperly connected accor
dingding
ding
dingding
Page 9
TT
TT
T
RESULRESUL
RESULRESUL
RESUL
RunsRuns
RunsRuns
Runs
Replace itReplace it
Replace itReplace it
Replace it
if necessary.if necessary.
if necessary.if necessary.
if necessary.
otectorotector
otectorotector
otector
d.d.
d.d.
d.
PROBLEMPROBLEM
PROBLEMPROBLEM
1-b1-b
1-b1-b
PROBLEM
1-b
RunsRuns
RunsRuns
Runs
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar CirCir
CirCir
Cir
Normal ControlNormal Control
Normal ControlNormal Control
Normal Control
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
ect seating ofect seating of
ect seating ofect seating of
ect seating of CorrCorr
CorrCorr
Corr
Each resistanceEach resistance
Each resistanceEach resistance
Each resistance
cuit Boar CirCir
CirCir
Cir
replace Controlreplace Control
replace Controlreplace Control
replace Control
Connector S101 orConnector S101 or
Connector S101 orConnector S101 or
Connector S101 or
OK.OK.
OK.OK.
OK.
RunsRuns
RunsRuns
Runs
d.d.
d.d.
d.
ouchouch
ouchouch
ouch
mal Tmal T
mal Tmal T
mal T
Key BoarKey Boar
Key BoarKey Boar
Key Boar
NorNor
NorNor
Nor
d.d.
d.d.
d.
ouchouch
ouchouch
ouch
Key BoarKey Boar
Key BoarKey Boar
Key Boar
Replace TReplace T
Replace TReplace T
Replace T
ect.ect.
ect.ect.
ect.
incorrincorr
incorrincorr
incorr
ResistanceResistance
ResistanceResistance
Resistance
(ON or OFF)(ON or OFF)
(ON or OFF)(ON or OFF)
(ON or OFF)
RunsRuns
RunsRuns
Runs
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar CirCir
CirCir
Cir
Normal ControlNormal Control
Normal ControlNormal Control
Normal Control
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
CirCir
CirCir
Cir
Replace ControlReplace Control
Replace ControlReplace Control
Replace Control
SEQUENCESEQUENCE
SEQUENCE
Check continuity of Fuse,Check continuity of Fuse,
Check continuity of Fuse,Check continuity of Fuse,
Check continuity of Fuse,
olt.olt.
olt.olt.
120120
120120
120
STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
(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
the display window bythe display window by
the display window bythe display window by
(1) PROBLEM
No display or mis-display in
B. TROUBLESHOOTINGB. TROUBLESHOOTING
B. TROUBLESHOOTINGB. TROUBLESHOOTING
B. TROUBLESHOOTING
the display window by
olt. 0 V0 V
0 V0 V
0 V
aa
aa
a
touching the keys.touching the keys.
touching the keys.touching the keys.
touching the keys.
mal Prmal Pr
mal Prmal Pr
mal Pr
on, Theron, Ther
on, Theron, Ther
on, Ther
Thermal Protector forThermal Protector for
Thermal Protector forThermal Protector for
MagnetrMagnetr
MagnetrMagnetr
for Cavity and AC Power Corfor Cavity and AC Power Cor
for Cavity and AC Power Corfor Cavity and AC Power Cor
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.
Thermal Protector for
Magnetr
REMOVING FUSE” on page 13.REMOVING FUSE” on page 13.
for Cavity and AC Power Cor
If the Fuse is blown, see “E,
REMOVING FUSE” on page 13.
120120
120120
120
emovingemoving
emovingemoving
emoving
power supply power supply
power supply power supply
power supply ACAC
ACAC
AC VV
VV
V
Check 120Check 120
Check 120Check 120
of Connector S1 between Pinof Connector S1 between Pin
of Connector S1 between Pinof Connector S1 between Pin
Check 120
of Connector S1 between Pin
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
1 and Pin 3 after r1 and Pin 3 after r
1 and Pin 3 after r1 and Pin 3 after r
Connector S1 from ControlConnector S1 from Control
Connector S1 from ControlConnector S1 from Control
CirCir
CirCir
1 and Pin 3 after r
Connector S1 from Control
Cir
olts.olts.
olts.olts.
olts.
120 V120 V
120 V120 V
120 V
bb
bb
b
- 7 -
d.d.
d.d.
d.
esistance ofesistance of
esistance ofesistance of
esistance of
ouch Key Boarouch Key Boar
ouch Key Boarouch Key Boar
ouch Key Boar
TT
TT
T
Check rCheck r
Check rCheck r
Check r
Each voltageEach voltage
Each voltageEach voltage
Each voltage
d.d.
d.d.
d.
(See page 6)(See page 6)
(See page 6)(See page 6)
(See page 6)
ouch Key Boarouch Key Boar
ouch Key Boarouch Key Boar
ouch Key Boar
TT
TT
T
OK.OK.
OK.OK.
OK.
d.d.
d.d.
d. BoarBoar
BoarBoar
Boar
Control CircuitControl Circuit
Control CircuitControl Circuit
Control Circuit
ect.ect.
ect.ect.
ect.
oltageoltage
oltageoltage
oltage VV
VV
V
incorrincorr
incorrincorr
incorr
cuitcuit
cuitcuit
cuit
ol Cirol Cir
ol Cirol Cir
ol Cir
d. (See page 5)d. (See page 5)
d. (See page 5)d. (See page 5)
d. (See page 5)
Check power supplyCheck power supply
Check power supplyCheck power supply
voltage on Contrvoltage on Contr
voltage on Contrvoltage on Contr
BoarBoar
BoarBoar
Check power supply
voltage on Contr
Boar
Page 10
TT
TT
T
RESULRESUL
RESULRESUL
RESUL
PROBLEMPROBLEM
PROBLEMPROBLEM
3-a3-a
3-a3-a
PROBLEM
3-a
RunsRuns
RunsRuns
Runs
NormalNormal
NormalNormal
Normal
contact.contact.
contact.contact.
contact.
RunsRuns
RunsRuns
Runs
Normal DoorNormal Door
Normal DoorNormal Door
Normal Door
Sensing Switch.Sensing Switch.
Sensing Switch.Sensing Switch.
Sensing Switch.
eplaceeplace
eplaceeplace
eplace
Adjust or rAdjust or r
Adjust or rAdjust or r
Door Sensing Switch.Door Sensing Switch.
Door Sensing Switch.Door Sensing Switch.
(See page 1)(See page 1)
(See page 1)(See page 1)
Adjust or r
Door Sensing Switch.
(See page 1)
PROBLEMPROBLEM
PROBLEMPROBLEM
3-b3-b
3-b3-b
PROBLEM
3-b
RunsRuns
RunsRuns
Runs
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar CirCir
CirCir
Cir
Normal ControlNormal Control
Normal ControlNormal Control
Normal Control
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar CirCir
CirCir
Cir
Replace ControlReplace Control
Replace ControlReplace Control
Replace Control
SEQUENCESEQUENCE
SEQUENCE
STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
(2) PROBLEM(2) PROBLEM
(2) PROBLEM(2) PROBLEM
Cooking operation will notCooking operation will not
Cooking operation will notCooking operation will not
(2) PROBLEM
Cooking operation will not
otector for Cavity.otector for Cavity.
otector for Cavity.otector for Cavity.
otector for Cavity.
mal Prmal Pr
mal Prmal Pr
mal Pr
Power Supply to Oven.Power Supply to Oven.
Power Supply to Oven.Power Supply to Oven.
Primary Interlock Switch.Primary Interlock Switch.
Primary Interlock Switch.Primary Interlock Switch.
Thermal Protector for Magnetron andThermal Protector for Magnetron and
Thermal Protector for Magnetron andThermal Protector for Magnetron and
TherTher
Power Supply to Oven.
1.1.
1.1.
1.
CHECK :CHECK :
CHECK :CHECK :
CHECK :
start.start.
start.start.
start.
TherTher
Primary Interlock Switch.
Thermal Protector for Magnetron and
Ther
2.2.
2.2.
3.3.
3.3.
2.
3.
aa
aa
a
OK.OK.
OK.OK.
OK.
ContactContact
ContactContact
Contact
CorrectCorrect
CorrectCorrect
seating.seating.
seating.seating.
Correct
seating.
PoorPoor
PoorPoor
Poor
contact.contact.
contact.contact.
contact.
Check contactCheck contact
Check contactCheck contact
of Connectorof Connector
of Connectorof Connector
S102.S102.
S102.S102.
Check contact
of Connector
S102.
OK.OK.
OK.OK.
OK.
ContinuityContinuity
ContinuityContinuity
Continuity
Door Sensing Switch.Door Sensing Switch.
Door Sensing Switch.Door Sensing Switch.
Door Sensing Switch.
Check continuity of ConnectorCheck continuity of Connector
Check continuity of ConnectorCheck 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)
with the door closed afterwith the door closed after
with the door closed afterwith the door closed after
Check continuity of Connector
S102 between Pins (O and BL)
with the door closed after
120120
120120
NoNo
NoNo
No
continuity.continuity.
continuity.continuity.
continuity.
omom
omom
om
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
ol Cirol Cir
ol Cirol Cir
ol Cir
emoving Connector S102 fremoving Connector S102 fr
emoving Connector S102 fremoving Connector S102 fr
emoving Connector S102 fr
rr
rr
ContrContr
ContrContr
r
Contr
120
(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.
(3) PROBLEM
Oven does not heat up.
olts.olts.
olts.olts.
olts.
AC 120 VAC 120 V
AC 120 VAC 120 V
AC 120 V
aa
aa
a
olts.olts.
olts.olts.
120120
120120
120
T” key andT” key and
T” key andT” key and
T” key and ARAR
ARAR
AR
e voltage betweene voltage between
e voltage betweene voltage between
e voltage between
ouch “STouch “ST
ouch “STouch “ST
ouch “ST
TT
TT
measurmeasur
measurmeasur
T
measur
olts. 0 V0 V
0 V0 V
0 V
minals ofminals of
minals ofminals of
minals of
emovingemoving
emovingemoving
emoving
..
..
.
om terom ter
om terom ter
om ter
mermer
mermer
mer
mer after rmer after r
mer after rmer after r
mer after r
e leads fre leads fr
e leads fre leads fr
e leads fr
ransforransfor
ransforransfor
ransfor
ransforransfor
ransforransfor
ransfor
. T. T
. T. T
. T. T
. T. T
. T
. T
white wire lead and black wirewhite wire lead and black wire
white wire lead and black wirewhite wire lead and black wire
lead for primary winding oflead for primary winding of
lead for primary winding oflead for primary winding of
H.VH.V
H.VH.V
the wirthe wir
the wirthe wir
H.VH.V
H.V
H.VH.V
the wir
H.V
white wire lead and black wire
lead for primary winding of
- 8 -
Page 11
TT
TT
T
RESULRESUL
RESULRESUL
RESUL
SEQUENCESEQUENCE
SEQUENCE
RunsRuns
RunsRuns
RunsRuns
RunsRuns
Runs
Runs
on.on.
on.on.
on.
NormalNormal
NormalNormal
Normal
MagnetrMagnetr
MagnetrMagnetr
Magnetr
on.on.
on.on.
on.
ReplaceReplace
ReplaceReplace
Replace
MagnetrMagnetr
MagnetrMagnetr
Magnetr
..
..
.
mal H.Vmal H.V
mal H.Vmal H.V
mal H.V
. Diode.. Diode.
. Diode.. Diode.
. Diode.
NorNor
NorNor
Capacitor orCapacitor or
Capacitor orCapacitor or
H.VH.V
H.VH.V
Nor
Capacitor or
H.V
RunsRuns
RunsRuns
RunsRuns
RunsRuns
Runs
Runs
..
..
.
mal H.Vmal H.V
mal H.Vmal H.V
mal H.V
. Diode.. Diode.
. Diode.. Diode.
. Diode.
NorNor
NorNor
Capacitor orCapacitor or
Capacitor orCapacitor or
H.VH.V
H.VH.V
Nor
Capacitor or
H.V
..
..
.
. Diode.. Diode.
. Diode.. Diode.
. Diode. H.VH.V
H.VH.V
H.V
Capacitor orCapacitor or
Capacitor orCapacitor or
Capacitor or
Replace H.VReplace H.V
Replace H.VReplace H.V
Replace H.V
. Diode.. Diode.
. Diode.. Diode.
. Diode.
. Capacitor. Capacitor
. Capacitor. Capacitor
. Capacitor
DefectiveDefective
DefectiveDefective
Defective
or H.Vor H.V
or H.Vor H.V
or H.V
H.VH.V
H.VH.V
H.V
..
..
.
es.es.
es.es.
es.
. Capacitor or H.V. Capacitor or H.V
. Capacitor or H.V. Capacitor or H.V
. Capacitor or H.V
RunsRuns
RunsRuns
Runs
..
..
.
..
..
.
mermer
mermer
mer
mal H.Vmal H.V
mal H.Vmal H.V
mal H.V
ransforransfor
ransforransfor
ransfor
NorNor
NorNor
TT
TT
Nor
T
..
..
.
..
..
. mermer
mermer
mer
ransforransfor
ransforransfor
ransfor
Replace H.VReplace H.V
Replace H.VReplace H.V
TT
TT
Replace H.V
T
PROBLEMPROBLEM
PROBLEMPROBLEM
3-b3-b
3-b3-b
PROBLEM
3-b
RunsRuns
RunsRuns
Runs
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
for Magnetron or Thermalfor Magnetron or Thermal
for Magnetron or Thermalfor Magnetron or Thermal
PrPr
PrPr
Normal Thermal Protector
for Magnetron or Thermal
Pr
otector for Cavity.otector for Cavity.
otector for Cavity.otector for Cavity.
otector for Cavity.
Replace Thermal ProtectorReplace Thermal Protector
Replace Thermal ProtectorReplace Thermal Protector
for Magnetron or Thermalfor Magnetron or Thermal
for Magnetron or Thermalfor Magnetron or Thermal
PrPr
PrPr
Replace Thermal Protector
for Magnetron or Thermal
Pr
NormalNormal
NormalNormal
Normal
operation.operation.
operation.operation.
operation.
RunsRuns
RunsRuns
Runs
..
..
.
MotorMotor
MotorMotor
Motor
mal Blowermal Blower
mal Blowermal Blower
mal Blower NorNor
NorNor
Nor
ReplaceReplace
ReplaceReplace
BlowerBlower
BlowerBlower
Replace
Blower
ect.ect.
ect.ect.
ect.
ResistanceResistance
ResistanceResistance
incorrincorr
incorrincorr
Resistance
incorr
RunsRuns
RunsRuns
Runs
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar CirCir
CirCir
Cir
Normal ControlNormal Control
Normal ControlNormal Control
Normal Control
..
..
.
MotorMotor
MotorMotor
Motor
Replace ControlReplace Control
Replace ControlReplace Control
Replace Control
6363
6363
63
NormalNormal
NormalNormal
Normal
ox. 63 ohms.ox. 63 ohms.
ox. 63 ohms.ox. 63 ohms.
ox. 63 ohms.
of Blower Motorof Blower Motor
of Blower Motorof Blower Motor
of Blower Motor
ApprAppr
ApprAppr
Appr
Measure resistanceMeasure resistance
Measure resistanceMeasure resistance
Measure resistance
NoNo
NoNo
No
operation.operation.
operation.operation.
operation.
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar CirCir
CirCir
Cir
resistanceresistance
resistanceresistance
resistance
STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
bb
bb
b
emoving lead wiremoving lead wir
emoving lead wiremoving lead wir
emoving lead wir
Check H.VCheck H.V
Check H.VCheck H.V
Diode with an ohm-meter afterDiode with an ohm-meter after
Diode with an ohm-meter afterDiode with an ohm-meter after
rr
rr
(See page 5)(See page 5)
Check H.V
..
..
. mermer
mermer
mer
ransforransfor
ransforransfor
ransfor . T. T
. T. T
. T H.VH.V
H.VH.V
H.V
(See page 5)(See page 5)
Diode with an ohm-meter after
r
(See page 5)
OK.OK.
OK.OK.
OK.
ResistanceResistance
ResistanceResistance
ResistanceResistance
ResistanceResistance
Resistance
emovingemoving
emovingemoving
emoving
esistance of eachesistance of each
esistance of eachesistance of each
esistance of each
Check rCheck r
Check rCheck r
winding after rwinding after r
winding after rwinding after r
Check r
winding after r
Resistance
es. (See page 4)es. (See page 4)
es. (See page 4)es. (See page 4)
es. (See page 4)
lead wirlead wir
lead wirlead wir
lead wir
ect.ect.
ect.ect.
ect.
incorrincorr
incorrincorr
incorr
(4) PROBLEM(4) PROBLEM
(4) PROBLEM(4) PROBLEM
(4) PROBLEM
- 9 -
NormalNormal
NormalNormal
Normal
operation.operation.
operation.operation.
operation.
owave powerowave power
owave powerowave power
owave power
Low micrLow micr
Low micrLow micr
output.output.
output.output.
Low micr
output.
aa
aa
a
malmal
malmal
mal
emporarily shortemporarily short
emporarily shortemporarily short
emporarily short
TT
TT
across terminalsacross terminals
across terminalsacross terminals
of Therof Ther
of Therof Ther
Protector forProtector for
Protector forProtector for
Magnetron orMagnetron or
Magnetron orMagnetron or
Themal ProtectorThemal Protector
T
across terminals
of Ther
NoNo
NoNo
No
operation.operation.
operation.operation.
operation.
T” keyT” key
T” keyT” key
T” key ARAR
ARAR
AR
is touched.is touched.
is touched.is touched.
Motor when “STMotor when “ST
Check operation of BlowerCheck operation of Blower
Check operation of BlowerCheck operation of Blower
Motor when “STMotor when “ST
is touched.
Motor when “ST
Check operation of Blower
Themal ProtectorThemal Protector
Protector for
Magnetron or
Themal Protector
for Cavity by usingfor Cavity by using
for Cavity by usingfor Cavity by using
jumper lead.jumper lead.
jumper lead.jumper lead.
for Cavity by using
jumper lead.
Page 12
TT
TT
T
RESULRESUL
RESULRESUL
RESUL
e watere water
e watere water
e water
oblem.oblem.
oblem.oblem.
oblem.
No prNo pr
No prNo pr
MeasurMeasur
MeasurMeasur
No pr
Measur
temperaturetemperature
temperaturetemperature
rise exactly.rise exactly.
rise exactly.rise exactly.
temperature
rise exactly.
RunsRuns
RunsRuns
Runs
Normal ControlNormal Control
Normal ControlNormal Control
Circuit BoardCircuit Board
Circuit BoardCircuit Board
Normal Control
Circuit Board
Circuit BoardCircuit Board
Circuit BoardCircuit Board
Circuit Board
Replace ControlReplace Control
Replace ControlReplace Control
Replace Control
RunsRuns
RunsRuns
Runs
Circuit BoardCircuit Board
Circuit BoardCircuit Board
Circuit Board
Normal ControlNormal Control
Normal ControlNormal Control
Normal Control
Circuit BoardCircuit Board
Circuit BoardCircuit Board
Circuit Board
Replace ControlReplace Control
Replace ControlReplace Control
Replace Control
SEQUENCESEQUENCE
SEQUENCE
STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
120120
120120
120
f.f.
f.f.
f.
on and ofon and of
on and ofon and of
on and of
oltage cyclesoltage cycles
oltage cyclesoltage cycles
oltage cycles VV
VV
V
..
..
. mermer
mermer
mer
ransforransfor
ransforransfor
ransfor . T. T
. T. T
. T
H.VH.V
H.VH.V
H.V
120120
120120
120
120V120V
120V120V
120V
..
..
.
omom
omom
om
mermer
mermer
mer
ransforransfor
ransforransfor
ransfor
e leads fre leads fr
e leads fre leads fr
e leads fr
. T. T
. T. T
. T
mer aftermer after
mer aftermer after
T” key andT” key and
T” key andT” key and
T” key and
ARAR
ARAR
AR
e voltage betweene voltage between
e voltage betweene voltage between
e voltage between
ouch “STouch “ST
ouch “STouch “ST
ouch “ST
TT
TT
measurmeasur
measurmeasur
T
measur
mer after
ransforransfor
ransforransfor
ransfor . T. T
. T. T
. T
minals of H.Vminals of H.V
minals of H.Vminals of H.V
minals of H.V
emoving the wiremoving the wir
emoving the wiremoving the wir
emoving the wir
rr
rr
terter
H.VH.V
H.VH.V
H.V
terter
r
ter
white wire lead and black wirewhite wire lead and black wire
white wire lead and black wirewhite wire lead and black wire
lead for primary winding oflead for primary winding of
lead for primary winding oflead for primary winding of
white wire lead and black wire
lead for primary winding of
at “50”.at “50”.
at “50”.at “50”.
at “50”.
Set power levelSet power level
Set power levelSet power level
Set power level
d.d.
d.d.
d.
cuit Boarcuit Boar
cuit Boarcuit Boar
cuit Boar
ol Cirol Cir
ol Cirol Cir
ol Cir
Check normal operationCheck normal operation
Check normal operationCheck normal operation
or Contror Contr
or Contror Contr
Check normal operation
or Contr
aa
aa
(5) PROBLEM(5) PROBLEM
(5) PROBLEM(5) PROBLEM
The Magnetron operates onThe Magnetron operates on
The Magnetron operates onThe Magnetron operates on
high level when a lowerhigh level when a lower
high level when a lowerhigh level when a lower
(5) PROBLEM
The Magnetron operates on
high level when a lower
a
cook power is selected.cook power is selected.
cook power is selected.cook power is selected.
cook power is selected.
- 10 -
aa
aa
(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
(6) PROBLEM
No buzzing by touching keys
a
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.
Page 13
7.7.
DISASSEMBLDISASSEMBL
7.
DISASSEMBL
7.7.
DISASSEMBLDISASSEMBL
••
OVEN MUST BE DISCONNECTED FROM ELECTRICALOVEN MUST BE DISCONNECTED FROM ELECTRICAL
OVEN MUST BE DISCONNECTED FROM ELECTRICAL
••
OVEN MUST BE DISCONNECTED FROM ELECTRICALOVEN MUST BE DISCONNECTED FROM ELECTRICAL OUTLET WHEN MAKING REPLACEMENTS, REPOUTLET WHEN MAKING REPLACEMENTS, REP
OUTLET WHEN MAKING REPLACEMENTS, REP
OUTLET WHEN MAKING REPLACEMENTS, REPOUTLET WHEN MAKING REPLACEMENTS, REP ADJUSTMENTS AND ADJUSTMENTS AND
ADJUSTMENTS AND
ADJUSTMENTS AND ADJUSTMENTS AND PROCEEDING WITH ANY REPPROCEEDING WITH ANY REP
PROCEEDING WITH ANY REP
PROCEEDING WITH ANY REPPROCEEDING WITH ANY REP DISCONNECTING, WDISCONNECTING, W
DISCONNECTING, W
DISCONNECTING, WDISCONNECTING, W THE CAPTHE CAP
THE CAP
THE CAPTHE CAP HAS FULLHAS FULL
HAS FULL
HAS FULLHAS FULL
••
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 SPECIFIED
REPLACE WITH THE SAME TYPE SWITCH SPECIFIEDREPLACE WITH THE SAME TYPE SWITCH SPECIFIED ON THE PON THE P
ON THE P
ON THE PON THE P
A.A.
REMOVING DOOR SENSING SWITCHREMOVING DOOR SENSING SWITCH
A.
REMOVING DOOR SENSING SWITCH
A.A.
REMOVING DOOR SENSING SWITCHREMOVING DOOR SENSING SWITCH
ACITOR IN THE HIGH-VOLACITOR IN THE HIGH-VOL
ACITOR IN THE HIGH-VOL
ACITOR IN THE HIGH-VOLACITOR IN THE HIGH-VOL
Y DISCHARGED.Y DISCHARGED.
Y DISCHARGED.
Y DISCHARGED.Y DISCHARGED.
ARAR
AR
ARAR
Y INSTRUCTIONSY INSTRUCTIONS
Y INSTRUCTIONS
Y INSTRUCTIONSY INSTRUCTIONS
CONTINUITY CHECKS BEFORECONTINUITY CHECKS BEFORE
CONTINUITY CHECKS BEFORE
CONTINUITY CHECKS BEFORECONTINUITY CHECKS BEFORE
AIR WORK. AFTERAIR WORK. AFTER
AIR WORK. AFTER
AIR WORK. AFTERAIR WORK. AFTER
AIT AAIT A
T LEAST 1 MINUTE, UNTILT LEAST 1 MINUTE, UNTIL
AIT A
T LEAST 1 MINUTE, UNTIL
AIT AAIT A
T LEAST 1 MINUTE, UNTILT LEAST 1 MINUTE, UNTIL
TS LISTTS LIST
..
TS LIST
.
TS LISTTS LIST
..
TT
AGE AREAAGE AREA
T
AGE AREA
TT
AGE AREAAGE AREA
AIRS,AIRS,
AIRS,
AIRS,AIRS,
(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).
B.B.
REMOVING PRIMARREMOVING PRIMAR
B.
REMOVING PRIMAR
B.B.
REMOVING PRIMARREMOVING PRIMAR INTERLOCK MONITOR SWITCHINTERLOCK MONITOR SWITCH
INTERLOCK MONITOR SWITCH
INTERLOCK MONITOR SWITCHINTERLOCK MONITOR SWITCH
Y INTERLOCK SWITCH ANDY INTERLOCK SWITCH AND
Y INTERLOCK SWITCH AND
Y INTERLOCK SWITCH ANDY INTERLOCK SWITCH AND
(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 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.
Switch Stoppers
(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.
Upper Switch Stopper
Door Sensing Switch
Lower Switch Stopper
Figure 10-aFigure 10-a
Figure 10-a
Figure 10-aFigure 10-a
Interlock Monitor Switch
Primary Interlock Switch
Switch Stoppers
Figure 10-bFigure 10-b
Figure 10-b
Figure 10-bFigure 10-b
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.
- 11 -
Page 14
C.C.
REMOVING BLOWER MOTORREMOVING BLOWER MOTOR
C.
REMOVING BLOWER MOTOR
C.C.
REMOVING BLOWER MOTORREMOVING 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.
REMOVING MAGNETRONREMOVING MAGNETRON
D.
REMOVING MAGNETRON
D.D.
REMOVING MAGNETRONREMOVING 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.
Duct (mag. exhaust)
Thermal Protector
Stay
FigurFigur
Figur
FigurFigur
Screw
Duct (mag. intake)
e 11 (Te 11 (T
e 11 (T
e 11 (Te 11 (T
op Vop V
op V
op Vop V
iew)iew)
iew)
iew)iew)
Blower Base
(4) Remove 4 screws securing the magnetron to the
waveguide.
(5) Take out Magnetron VERY CAREFULLY.
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.
NOTENOTE
NOTE
NOTENOTE
Blower Motor
Screws
Figure 12Figure 12
Figure 12
Figure 12Figure 12
Hook
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 -
Page 15
E.E.
REMOVING FUSEREMOVING FUSE
E.
REMOVING FUSE
E.E.
REMOVING FUSEREMOVING FUSE
Remove the 20A fuse with a screwdriver.
-- 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 PROCEDURE“CHECKOUT PROCEDURE
“CHECKOUT PROCEDURE
“CHECKOUT PROCEDURE“CHECKOUT PROCEDURE
And make sure to check the microwave energy leakage according to, 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
..
REMOVING CONTROL CIRCUIT BOARDREMOVING CONTROL CIRCUIT BOARD
F
.
REMOVING CONTROL CIRCUIT BOARD
FF
..
REMOVING CONTROL CIRCUIT BOARDREMOVING CONTROL CIRCUIT BOARD
NOTENOTE
NOTE
NOTENOTE
FOR SWITCHES”FOR SWITCHES”
FOR SWITCHES” on page 6.
FOR SWITCHES”FOR SWITCHES”
“1. ADJUSTMENT“1. ADJUSTMENT
“1. ADJUSTMENT
“1. ADJUSTMENT“1. ADJUSTMENT
PROCEDURES”PROCEDURES”
PROCEDURES” on page
PROCEDURES”PROCEDURES”
(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.
Control Sheet
Control Frame
Control Base
Figure 13Figure 13
Figure 13
Figure 13Figure 13
Control Frame
(5) Lift up the control circuit board from its lower side and
take it out from the control base.
G.G.
REMOVING TOUCH KEY BOARDREMOVING TOUCH KEY BOARD
G.
REMOVING TOUCH KEY BOARD
G.G.
REMOVING TOUCH KEY BOARDREMOVING 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 -
Touch Key Board
Figure 14Figure 14
Figure 14
Figure 14Figure 14
Page 16
H.H.
REMOVING DOORREMOVING DOOR
H.
REMOVING DOOR
H.H.
REMOVING DOORREMOVING 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.
J.J.
REMOVING CAREMOVING CA
J.
REMOVING CA
J.J.
REMOVING CAREMOVING CA
VITY COVERVITY COVER
VITY COVER
VITY COVERVITY COVER
(Figure 16)
(1) Remove a screw from the cavity compartment.
- 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 allow for measurement uncertainty.
I.I.
DISASSEMBLING DOORDISASSEMBLING DOOR
I.
DISASSEMBLING DOOR
I.I.
DISASSEMBLING DOORDISASSEMBLING DOOR
NOTENOTE
NOTE
NOTENOTE
(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.
Hooks
Cavity Cover
2
to
Screw
Figure 16Figure 16
Figure 16
Figure 16Figure 16
K.K.
REMOVING TURNTREMOVING TURNT
K.
REMOVING TURNT
K.K.
REMOVING TURNTREMOVING TURNT
ABLE MOTOR COVERABLE MOTOR COVER
ABLE MOTOR COVER
ABLE MOTOR COVERABLE 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.
Hooks
Door Main Frame
Choke Dielectric
Hooks
- 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/cm2 to allow for measurement uncertainty.
NOTENOTE
NOTE
NOTENOTE
Figure 15Figure 15
Figure 15
Figure 15Figure 15
Hooks
- 14 -
Note : Bent the cut joints inside slightly for safety
and be careful of sharp edge.
6 Joints
Figure 17Figure 17
Figure 17
Figure 17Figure 17
Motor Cover
Bottom Plate
Page 17
8.8.
EXPLODED VIEW AND PEXPLODED VIEW AND P
8.
EXPLODED VIEW AND P
8.8.
EXPLODED VIEW AND PEXPLODED VIEW AND P
CAVITY PARTS
ARAR
AR
ARAR
TS LISTTS LIST
TS LIST
TS LISTTS LIST
* * * 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
No.
Part No. Description Q’ty
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
NoteNote
Note : Screws securing Cabinet cannot be removed by regular screwdriver.
NoteNote
KEY NO. 26. SPECIAL SCREW REQUIRES SPECIAL DRIVER (PART NO. 617 209 3734) OR SPECIAL BIT (PART NO. 617 209 3741)
Key
No.
Part No. Description Q’ty
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 167oC1 23 617 080 5315 Special Washer 1 24 25 26 617 208 4176 Special Screw 2
- 15 -
Page 18
SWITCHES AND MICROWAVE 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
No.
Part No. Description Q’ty
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 122oC1 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
Key
No.
Part No. Description Q’ty
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
- 16 -
Page 19
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
No.
Part No. Description Q’ty
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
Key
No.
Part 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
. Description Q’ty
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Page 20
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
No.
Part No. Description Q’ty
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
Key
No.
Part No. Description Q’ty
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
PRINTED MATTER (Items Not Illustrated)
Key
No.
Part No. Description Q’ty
617 220 9562 Operating Instructions 1
(English / Spanish) 617 221 8144 Carton Box Complete 1 617 220 9470 Name Plate 1
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Page 21
CONTROL CIRCUIT BOARDCONTROL CIRCUIT BOARD
CONTROL CIRCUIT BOARD
CONTROL CIRCUIT BOARDCONTROL CIRCUIT BOARD
(Part No.
617 220 2990617 220 2990
617 220 2990)
617 220 2990617 220 2990
33000
3300033000
3300033000
- 19 -
Page 22
CONTROL CIRCUIT BOARDCONTROL CIRCUIT BOARD
CONTROL CIRCUIT BOARD
CONTROL CIRCUIT BOARDCONTROL CIRCUIT BOARD
(Part No.
617 220 2990617 220 2990
617 220 2990)
617 220 2990617 220 2990
Key No. Order Part No. Description Q’ty
INTEGRATED CIRCUIT.
IC11 409 448 2209 IC LM8847. 1
TRANSISTORS.
Q101, 105 405 082 4609 DTA123YS-TP. 2 Q104 405 035 4809 2SC1685-Q-TP. 1 Q102, 103 405 000 1802 DTA143-TP. 2
DIODES.
D11 407 012 0200 1N4002-TP. 1 D101 ~ 106 407 012 4406 1SS133-TP. 6 ZD11 407 056 8507 RD5.1ESB2. 1 ZD101 407 132 2306 HZS3.9NB2. 1
Key No. Order Part No. Description Q’ty
RESISTORS.
R108 401 012 4404 Carbon, 100 ohms 1
R101, 115 401 012 5609 Carbon, 1K ohms 2
R102, 113, 401 012 6903 Carbon, 10K ohms 7 122 ~ 126 ± 5%, 1/4W.
R11 ~ 14 401 013 4106 Carbon, 120 ohms 4
R106, 127 401 016 4707 Carbon, 22K ohms 2
R109, 110 401 016 9603 Carbon, 27 ohms 2
R111 401 018 2701 Carbon, 330 ohms 1
R114 401 018 3708 Carbon, 3.3K ohms 1
R104, 112, 401 020 1907 Carbon, 4.7K ohms 8 116 ~ 121 ± 5%, 1/4W.
R103, 105 401 020 2805 Carbon, 47K ohms 2
R107 401 023 1607 Carbon, 820 ohms 1
± 5%, 1/4W.
± 5%, 1/4W.
± 5%, 1/4W.
± 5%, 1/4W.
± 5%, 1/4W.
± 5%, 1/4W.
± 5%, 1/4W.
± 5%, 1/4W.
± 5%, 1/4W.
CAPACITORS.
C104, 105 403 069 1207 Ceramic, 1000PK, 2
C102, 103, 403 142 5306 Ceramic, 0.01mfd, 6 106 ~ 109 ± 5%, 50V.
C101 403 049 2606 Electrolytic, 1mfd, 1
C12 403 105 3806 Electrolytic, 47mfd, 1
C11 403 152 7208 Electrolytic, 1000mfd, 1
± 5%, 50V.
± 20%, 50V.
± 20%, 10V.
± 20%, 25V.
RESISTORS BLOCKS.
RB101 617 010 3558 Resistor Network. 1
MISCELLANEOUS.
BZ1 420 000 6800 Buzzer PKM22EPT-2004. 1 VST1 407 118 5505 Varistor ENC 471D-10A. 1 LCD1 617 209 2218 Display Tube. 1 RL1 617 201 3978 Relay, G5N-1A-DC12. 1 RL2 617 141 0549 Relay, DU12D1-PR. 1 RS1 617 128 3372 Ceramic Oscillator. 1 S 1 617 169 4109 Connector. 1 S101 617 126 8959 Connector, 11P. 1 S102 617 111 1392 Connector, 2/3P, Male. 1 PT 1 617 178 3933 Step-down Transformer, 1
2 617 178 4268 Part Base. 1 JB1, 2 617 132 5744 Noise Filter. 2 J1 ~ 3, 8, 617 079 4299 Jumper. 1 0
9, 12 ~ 16 J101 ~ 102 617 079 4237 Jumper. 2
P6TK-N101.
- 20 -
Page 23
9.9.
OVERALL CIRCUIT DIAGRAMOVERALL CIRCUIT DIAGRAM
9.

OVERALL CIRCUIT DIAGRAM

9.9.
OVERALL CIRCUIT DIAGRAMOVERALL CIRCUIT DIAGRAM
- 21 -
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