manuals.online logo
Brands
  1. Home
  2. •
  3. Brands
  4. •
  5. Sanyo
  6. •
  7. Microwave Oven
  8. •
  9. Sanyo EM-P472WS User manual

Sanyo EM-P472WS User manual

Other Sanyo Microwave Oven manuals

Sanyo EM-FL50N User manual

Sanyo

Sanyo EM-FL50N User manual

Sanyo EM-S100 Operating manual

Sanyo

Sanyo EM-S100 Operating manual

Sanyo EM-S625S User manual

Sanyo

Sanyo EM-S625S User manual

Sanyo EM-S5120WB Use and care manual

Sanyo

Sanyo EM-S5120WB Use and care manual

Sanyo EM-V758 User manual

Sanyo

Sanyo EM-V758 User manual

Sanyo EM-S105A User manual

Sanyo

Sanyo EM-S105A User manual

Sanyo EM-C160US Operating manual

Sanyo

Sanyo EM-C160US Operating manual

Sanyo EMS6588S - USA Countertop Microwave Oven 1.0 cu.ft. Capacity... Use and care manual

Sanyo

Sanyo EMS6588S - USA Countertop Microwave Oven 1.0 cu.ft. Capacity... Use and care manual

Sanyo EM-U1000W Use and care manual

Sanyo

Sanyo EM-U1000W Use and care manual

Sanyo EM-N202 User manual

Sanyo

Sanyo EM-N202 User manual

Sanyo EM-S8588V User manual

Sanyo

Sanyo EM-S8588V User manual

Sanyo EM-S7595S User manual

Sanyo

Sanyo EM-S7595S User manual

Sanyo EM-SL40S User manual

Sanyo

Sanyo EM-SL40S User manual

Sanyo EM-S665S User manual

Sanyo

Sanyo EM-S665S User manual

Sanyo EM-C950 User manual

Sanyo

Sanyo EM-C950 User manual

Sanyo EM-G255A User manual

Sanyo

Sanyo EM-G255A User manual

Sanyo EM-C1901 User manual

Sanyo

Sanyo EM-C1901 User manual

Sanyo EMS5595S - Microwave 0.9 Cubic Feet Use and care manual

Sanyo

Sanyo EMS5595S - Microwave 0.9 Cubic Feet Use and care manual

Sanyo EM-V890 Operating manual

Sanyo

Sanyo EM-V890 Operating manual

Sanyo EM-X400 User manual

Sanyo

Sanyo EM-X400 User manual

Sanyo EM5710 User manual

Sanyo

Sanyo EM5710 User manual

Sanyo EM-S9000 Use and care manual

Sanyo

Sanyo EM-S9000 Use and care manual

Sanyo EM-S2220V User manual

Sanyo

Sanyo EM-S2220V User manual

Sanyo EM-S357BW User manual

Sanyo

Sanyo EM-S357BW User manual

Popular Microwave Oven manuals by other brands

Sharp R-390D manual

Sharp

Sharp R-390D manual

PROFILO MD1000 instruction manual

PROFILO

PROFILO MD1000 instruction manual

Candy MIC 201 EX User instructions

Candy

Candy MIC 201 EX User instructions

PITSOS GMW3101B user manual

PITSOS

PITSOS GMW3101B user manual

Sears 5648744780 Use & care manual

Sears

Sears 5648744780 Use & care manual

BOMANN CB 1272 Instruction manual & guarantee

BOMANN

BOMANN CB 1272 Instruction manual & guarantee

Conrad Electronic 2372935 operating instructions

Conrad Electronic

Conrad Electronic 2372935 operating instructions

GE Spacemaker JVM1440BH datasheet

GE

GE Spacemaker JVM1440BH datasheet

DAEWOO ELECTRONICS KOR-6L8K5S83 Operating instructions & cook book

DAEWOO ELECTRONICS

DAEWOO ELECTRONICS KOR-6L8K5S83 Operating instructions & cook book

DAEWOO ELECTRONICS KOR-1N5A9S Operating instructions & cook book

DAEWOO ELECTRONICS

DAEWOO ELECTRONICS KOR-1N5A9S Operating instructions & cook book

Daewoo KQG-6617G Operating instructions & cook book

Daewoo

Daewoo KQG-6617G Operating instructions & cook book

Samsung M1779 Owner's instructions

Samsung

Samsung M1779 Owner's instructions

GE JES1143 Use and care & cooking guide

GE

GE JES1143 Use and care & cooking guide

Miele H6200BM(TB) Operating and installation instructions

Miele

Miele H6200BM(TB) Operating and installation instructions

Jocel JMO011480 instruction manual

Jocel

Jocel JMO011480 instruction manual

Sharp R-752M Operation manual with cookbook

Sharp

Sharp R-752M Operation manual with cookbook

Electrolux EVL8E00X user manual

Electrolux

Electrolux EVL8E00X user manual

STOVES Q900GRF DO User, installation & servicing instructions

STOVES

STOVES Q900GRF DO User, installation & servicing instructions

manuals.online logo
manuals.online logoBrands
  • About & Mission
  • Contact us
  • Privacy Policy
  • Terms and Conditions

Copyright 2025 Manuals.Online. All Rights Reserved.

CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
WW
WW
WARNING TO SERARNING TO SER
ARNING TO SERARNING TO SER
ARNING TO SERVICE 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.
File No :File No :
File No :File No :
File No :
SUPPLEMENT OFSUPPLEMENT OF
SUPPLEMENT OFSUPPLEMENT OF
SUPPLEMENT OF MicrMicr
MicrMicr
Microwave Ovenowave Oven
owave Ovenowave Oven
owave Oven EM-P472WS (U.S.A.)EM-P472WS (U.S.A.)
EM-P472WS (U.S.A.)EM-P472WS (U.S.A.)
EM-P472WS (U.S.A.)
SERSER
SERSER
SERVICE MANUALVICE MANUAL
VICE MANUALVICE MANUAL
VICE MANUAL
The following parts are different from the parts on model EM-P415WS (SM-860251)
Key Part No. Description
No.
DOOR PARTS
1 617 207 6294 Door Cover
2 617 207 6300 Door Panel
CONTROL PANEL PARTS
1 617 221 5846 Control Sheet
2 617 219 4561 Touch Key Board
3 617 207 6317 Control Frame
4 617 207 0377 Control Base
9 617 207 0353 Door Release Lever
* 617 218 1035 Carton Box Complete
* 617 223 4052 Name Plate
REFERENCE NO. SS-860257
JUNE ‘99. 1200 LT Printed in Singapore
For Parts or Service ContactFor Parts or Service Contact
For Parts or Service ContactFor Parts or Service Contact
For Parts or Service Contact
SANYO FISHER SERSANYO FISHER SER
SANYO FISHER SERSANYO FISHER SER
SANYO FISHER SERVICE COMPVICE COMP
VICE COMPVICE COMP
VICE COMPANYANY
ANYANY
ANY
21605 Plummer Street,
Chatsworth, CA91311 U.S.A.
PrPr
PrPr
Product Code No.oduct Code No.
oduct Code No.oduct Code No.
oduct Code No. 437 499 01437 499 01
437 499 01437 499 01
437 499 01
See the Service Manual of EM-P415WS (SM-860251)
except the items described in this Service Manual.
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
WW
WW
WARNING TO SERARNING TO SER
ARNING TO SERARNING TO SER
ARNING TO SERVICE 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-860251
SERSER
SERSER
SERVICE MANUALVICE MANUAL
VICE MANUALVICE MANUAL
VICE MANUAL MicrMicr
MicrMicr
Microwave Ovenowave Oven
owave Ovenowave Oven
owave Oven EM-P415WSEM-P415WS
EM-P415WSEM-P415WS
EM-P415WS (U.S.A.)(U.S.A.)
(U.S.A.)(U.S.A.)
(U.S.A.)
PrPr
PrPr
Product Code No.oduct Code No.
oduct Code No.oduct Code No.
oduct Code No. 437 499 00437 499 00
437 499 00437 499 00
437 499 00
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.
NOTENOTE
NOTENOTE
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/cm2must 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 microwave enerowave ener
owave enerowave ener
owave energy 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
Measurement of enerement of ener
ement of enerement of ener
ement of energy 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 20o±5ocelsius (68
±9oF) placed within the cavity at the center.
NOTENOTE
NOTENOTE
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/cm2 to allow for
measurement uncertainty with the cooking shelf or tray in
place.
All repairs must be performed in such a mannerAll repairs must be performed in such a manner
All repairs must be performed in such a mannerAll repairs must be performed in such a manner
All repairs must be performed in such a manner thatthat
thatthat
that
micrmicr
micrmicr
microwave enerowave ener
owave enerowave ener
owave energy emission argy emission ar
gy emission argy emission ar
gy emission are 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 -
NOTENOTE
NOTENOTE
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
TO AO A
O AO A
O AVOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROWAA
AA
AVEVE
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 ONLY BY AUTHORIZEDY BY AUTHORIZED
Y BY AUTHORIZEDY BY AUTHORIZED
Y BY AUTHORIZED
SERSER
SERSER
SERVICE 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.
NOTENOTE
NOTENOTE
NOTE : Detector to be used at the service center is
NARDA 8100, 8200 or the equivalent.
PRIMARPRIMAR
PRIMARPRIMAR
PRIMARY 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/cm2to 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
SPECIFICATIONSTIONS
TIONSTIONS
TIONS
Rated Power Consumption .. 1650W.
Microwave Output ................ 1100W.
Frequency ............................. 2,450MHz±50MHz.
Power Supply ........................ 120V±12V, 60Hz.
Rated Current ....................... 14 Amp.
Safety Devices ..................... Thermal Fuse open at
332°F (167°C) for Cavity.
Thermal Protector open at
275°F (135°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 ................ 205/8”(W) x 16 1/2”(D) x 11 3/8”(H)
Oven Cavity Size .................. 133/4”(W) x 14 5/8”(D) x 8 1/4”(H)
Turn Table Diameter.............. 107/8”
Effective Capacity of
Oven Cavity .......................... 1.1 Cubic Feet.
Net Weight ........................... Approx. 34.1 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, 1100W. on this model is
measured with IEC measurement. The power output is
measured with two (2) liters water is equivalent to 1100W.
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 center 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 :
Average Temperature Rise Power Output
Minimum 22.9°F (12.7°C) 889W
Maximum 29.3°F (16.3°C) 1141W
(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 REPAIR SERAIR SER
AIR SERAIR SER
AIR SERVICE TIPSVICE TIPS
VICE TIPSVICE TIPS
VICE TIPS
PRELIMINARPRELIMINAR
PRELIMINARPRELIMINAR
PRELIMINARYY
YY
Y
A.A.
A.A.
A. SINCE NEARLSINCE NEARL
SINCE NEARLSINCE NEARL
SINCE NEARLY 2,000 VOLY 2,000 VOL
Y 2,000 VOLY 2,000 VOL
Y 2,000 VOLTS 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 MICROWAA
AA
AVE OVEN, REPVE OVEN, REP
VE OVEN, REPVE OVEN, REP
VE OVEN, REPAIRS 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 GREAT CARE.T CARE.
T CARE.T CARE.
T CARE.
B.B.
B.B.
B. TO ATO A
TO ATO A
TO AVOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROWVOID POSSIBLE EXPOSURE TO MICROW
VOID POSSIBLE EXPOSURE TO MICROWAA
AA
AVEVE
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 TAKEN BEFORE SERAKEN BEFORE SER
AKEN BEFORE SERAKEN BEFORE SER
AKEN BEFORE SERVICING.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/cm2to 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 removed or bypassed.emoved or bypassed.
emoved or bypassed.emoved or bypassed.
emoved or bypassed.
- 2 -
- 3 -
5. CIRCUIT DIAGRAM
KCOLRETNIYRADNOCES
EDAMHCTIWS
•
YRAMIRP
KCOLRETNI
HCTIWS
KCOLRETNI
ROTINOM
HCTIWS
ROOD
GNISNES
HCTIWS
2YALER
DNOCTINOI MOCMOCMOCMOC
ONCNONON
NEPOROOD
•
ESOLCROOD
•••
A.A.
A.A.
A. TEST PROCEDURESTEST PROCEDURES
TEST PROCEDURESTEST PROCEDURES
TEST PROCEDURES
COMPONENTCOMPONENT
COMPONENTCOMPONENT
COMPONENT CHECKOUT PROCEDURECHECKOUT PROCEDURE
CHECKOUT PROCEDURECHECKOUT PROCEDURE
CHECKOUT PROCEDURE RESULRESUL
RESULRESUL
RESULTT
TT
T
1) Check for resistance : Across the filament Normalreading :
terminals of the Magnetron with an Ohm-Meter Less than 1 Ohm.
on R x 1 scale.
2) Check for resistance : Between each filament Normalreading :
terminal of the Magnetron and the chassis Infinite Ohms.
ground with an Ohm-Meter on highest scale.
1) Measure the resistance : Normal readings :
With an Ohm-Meter on R x 1 scale.
a. Primary winding : Approximately 0.31 Ohms.
b. Filament winding : Less than 1 Ohm.
c. Secondary winding : Approximately 67.5 Ohms.
2) Measure the resistance : Normal readings :
With an Ohm-Meter on highest scale.
a. Primary winding to ground. Infinite Ohms.
b Filament winding to ground. Infinite Ohms.
NoteNote
NoteNote
Note : Remove varnish of
measured point.
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 SUPPLY CORD FROMY CORD FROM
Y CORD FROMY CORD FROM
Y CORD FROM
THE WTHE W
THE WTHE W
THE WALL 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 ONLY AFTER DISCHARGING THE HIGHY AFTER DISCHARGING THE HIGH
Y AFTER DISCHARGING THE HIGHY AFTER DISCHARGING THE HIGH
Y AFTER DISCHARGING THE HIGH
VOLVOL
VOLVOL
VOLTT
TT
TAGE CAPAGE CAP
AGE CAPAGE CAP
AGE CAPACITOR 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 PRIMARY WINDING OF THEY WINDING OF THE
Y WINDING OF THEY WINDING OF THE
Y WINDING OF THE
HIGH VOLHIGH VOL
HIGH VOLHIGH VOL
HIGH VOLTT
TT
TAGE 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 -
HIGH-VOLTAGE
TRANSFORMER
MAGNETRON
COMPONENTCOMPONENT
COMPONENTCOMPONENT
COMPONENT CHECKOUT PROCEDURECHECKOUT PROCEDURE
CHECKOUT PROCEDURECHECKOUT PROCEDURE
CHECKOUT PROCEDURE RESULRESUL
RESULRESUL
RESULTT
TT
T
Measure the resistance : Across two terminals Normal reading :
with an Ohm-Meter on highest scale. Momentarily indicates several ohms,
and gradually returns to 10 Meg-Ohms.
Abnormal reading :
Indicates continuity or 10 Meg-Ohms
from the beginning.
Measure the resistance : Across two terminals Normal reading :
with an Ohm-Meter on R x 10,000 scale. Indicates about the middle position in
one direction (forward direction) and
infinite Ohms in the reverse direction,
using meter which is provided with a
9 volt battery.
NOTENOTE
NOTENOTE
NOTE
- Some digital meter may show over
even in a forward direction because
low measuring voltage of meter does
not allow the meter current to pass
through the High Voltage Diode.
Abnormal reading :
Indicates continuity or infinite Ohms
in both directions.
Measure the voltage : Between test point TP-1,
TP-2 , TP-3 or TP-4 and Ground between TP-5
and TP-6 (See Control Circuit Board on page 19).
NOTENOTE
NOTENOTE
NOTE
- Proceed with the check of the Step-Down
Transformer, to see if any one of the measured
values is different from 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 -
Test TP-5 /
Point TP-1 TP-2 TP-3 TP-4 TP-6
Voltage -5V -15V -25V -36V 2.0V
DC DC DC DC AC
HIGH-VOLTAGE
DIODE
HIGH-VOLTAGE
CAPACITOR
including
BLEEDER
RESISTOR
CONTROL
CIRCUIT
BOARD
CHECKOUT PROCEDURE FOR SWITCHESCHECKOUT PROCEDURE FOR SWITCHES
CHECKOUT PROCEDURE FOR SWITCHESCHECKOUT PROCEDURE FOR SWITCHES
CHECKOUT PROCEDURE FOR SWITCHES
Disconnect the lead wires from the switches and check for the continuity of the switches, connecting an Ohm-Meter
to its terminals.
SWITCHESSWITCHES
SWITCHESSWITCHES
SWITCHES CHECKOUT PROCEDURESCHECKOUT PROCEDURES
CHECKOUT PROCEDURESCHECKOUT PROCEDURES
CHECKOUT PROCEDURES DOOR OPENDOOR OPEN
DOOR OPENDOOR OPEN
DOOR OPEN DOOR CLOSEDDOOR CLOSED
DOOR CLOSEDDOOR 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
Terminals “COM” and “NO”
Door Sensing
Interlock Monitor Terminals “COM” and “NC”
COMPONENTCOMPONENT
COMPONENTCOMPONENT
COMPONENT CHECKOUT PROCEDURECHECKOUT PROCEDURE
CHECKOUT PROCEDURECHECKOUT PROCEDURE
CHECKOUT PROCEDURE RESULRESUL
RESULRESUL
RESULTT
TT
T
Measure the resistance between terminals of
FPC connector after removing it from S101.
(Figure 9).
NOTENOTE
NOTENOTE
NOTE
- When reconnecting the FPC connector, make When checking “START” key, connect
sure the holes on the connector are properly Ohm-Meter as illustration below.
inserted in hooks of the plastic fastener in S101.
TOUCH KEY
BOARD
MAMA
MAMA
MATRIX CIRCUIT FORTRIX CIRCUIT FOR
TRIX CIRCUIT FORTRIX CIRCUIT FOR
TRIX CIRCUIT FOR
TOUCH KEY BOARDTOUCH KEY BOARD
TOUCH KEY BOARDTOUCH 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
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION : After checking the switches, make sure that the Interlock Monitor Switch is properly connected according
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
When When not
Resistance touched touched
value Less than More than
1K Ohms 1 MEG Ohms
- 7 -
STEPSTEP
STEPSTEP
STEP SEQUENCESEQUENCE
SEQUENCESEQUENCE
SEQUENCE
B. TROUBLESHOOTINGB. TROUBLESHOOTING
B. TROUBLESHOOTINGB. TROUBLESHOOTING
B. TROUBLESHOOTING
0 Volt. Check continuity of Fuse,
Thermal Protector for
Magnetron, Thermal Protector
for Cavity and AC Power Cord.
If the Fuse is blown, see “E,
REMOVING FUSE”on page 13.
Replace it
if necessary.
Normal Control
Circuit Board.
Correct seating of
Connector S101 or
replace Control
Circuit Board.
Each resistance
OK.
Resistance
incorrect.
(ON or OFF)
Replace Touch
Key Board.
Normal Touch
Key Board.
Normal Control
Circuit Board.
Replace Control
Circuit Board.
Voltage
incorrect.
Check power supply
voltage on Control Circuit
Board. (See page 5)
Each voltage
OK.
Touch Key Board.
Check resistance of
Touch Key Board.
(See page 6)
120 Volts.
Check 120VAC power supply
of Connector S1 between Pin
1 and Pin 3 after removing
Connector S1 from Control
Circuit Board.
(1) PROBLEM
No display or mis-display in
the display window by
touching the keys.
a
b
RESULRESUL
RESULRESUL
RESULTT
TT
T
PROBLEM
1-b
Runs
Runs
Runs
Runs
Control Circuit
Board.