Model No : -Product Code No : EM-N107WS437 373 41
EM-N107BS437 373 42
See the Service Manual of EM-P410WS (SM-860236)
except the items described in this Service Manual.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
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ARNING TO SERARNING TO SER
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ARNING TO SER
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VICE TECHNICIANSVICE TECHNICIANS
VICE TECHNICIANS
VICE TECHNICIANSVICE 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 per formance standard should be performed
on each oven prior to release to the owner.
REFERENCE NO. SS-860250
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
For micrFor micr
For micr
For micrFor micr
owave enerowave ener
owave ener
owave enerowave ener
gy emissiongy emission
gy emission
gy emissiongy emission
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.
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.
NOTENOTE
NOTE : The water container must be a 600 milliliter beaker
NOTENOTE
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 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.
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 emission argy emission ar
gy emission ar
gy emission argy emission ar
e minimal.e minimal.
e minimal.
e minimal.e minimal.
o±5o
celsius (68
thatthat
that
thatthat
NOTENOTE
NOTE : Periodically check to be sure that the probe tip is
NOTENOTE
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.
(C) 1. Set cooking time to two (2) minutes. (“2 00”
appears in display)
2 . Touch “START” key and operate oven for exactly
two (2) minutes.
(D) 1. Take out the two bowls at once.
2 . Stir both water with thermometer and measure the
water temperature rise respectively.
(E) 1 . Get temperature rise by calculation the difference
(water temperature after cooking minus initial
temperature) in each bowl.
2 . Then calculate average value(t) of both temperature
rises in degrees centigrade.
3. Then work out :
Power Output (watt) = 70 x ∆t
2. POWER OUTPUT MEASUREMENT2. POWER OUTPUT MEASUREMENT
2. POWER OUTPUT MEASUREMENT
2. POWER OUTPUT MEASUREMENT2. POWER OUTPUT MEASUREMENT
NOTENOTE
NOTE
NOTENOTE
The Power Output specification 600W on this model
is measured with IEC measurement. The Power Output
is measured with two (2) liters water is equivalent to
600W in measurement with IEC, when measured with
the following power output.
(A) 1 . Fill two test bowls with each 1 liter water respectively.
2 . Use accurate thermometer and measure each
water temperature respectively.
(B) Place the two bowls on glass turntable.
Where ∆t is an Average Temperature Rise in degrees
centigrade.
(F)Power Output shall be in the following range :
Average Microwave
Temperature RisePower Output
Minimum
12.9oF (7.2oC)504W
Maximum
16.0oF (8.9oC)623W
(G) Power Output will be influenced by line voltage of
power supply. Consequently, correct power output
must be measured within 120V AC ± 1 volt while
unit is operating.
- 1 -
3. CIRCUIT DIAGRAM3. CIRCUIT DIAGRAM
3. CIRCUIT DIAGRAM
3. CIRCUIT DIAGRAM3. CIRCUIT DIAGRAM
DNOCTINOI
KCOLRETNIYRADNOCES
YRAMIRP
EDAMHCTIWS
•
NEPOROOD
ESOLCROOD
•••
KCOLRETNI
HCTIWS
MOCMOCMOCMOC
ONCNONON
•
- 2 -
KCOLRETNI
ROTINOM
HCTIWS
ROOD
GNISNES
HCTIWS
2YALER
4. TEST PROCEDURES4. TEST PROCEDURES
4. TEST PROCEDURES
4. TEST PROCEDURES4. TEST PROCEDURES
COMPONENT COMPONENT
COMPONENT
COMPONENT COMPONENT
TOUCH KEY
BOARD
--
-
--
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
CHECKOUT PROCEDURE
CHECKOUT PROCEDURE CHECKOUT PROCEDURE
Measure the resistance between terminals of
FPC connector after removing it from S101.
(Figure 2).
NOTE NOTE
NOTE
NOTE NOTE
- When reconnecting the FPC connector, makeWhen checking “START” key, connect
sure the holes on the connector are properlyOhm-Meter as illustration below.
inserted in hooks of the plastic fastener in S101.
MAMA
065
AUTO
1
7
DEFROST
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
POWER
LEVEL
QUICK
ON
SOUP /
BEVERAGE
POTATO
MORE +
LESS -
RESUL RESUL
RESUL
RESUL RESUL
Resistance
value
Ohm-MeterOhm-Meter
Ohm-Meter
Ohm-MeterOhm-Meter
TT
T
TT
WhenWhen not
touchedtouched
Less than More than
1K Ohms 1 MEG Ohms
2
3
4
HIGH-VOLTAGE
TRANSFORMER
8
9
STOP /
CLEAR
1)Measure the resistance :Normal readings :
With an Ohm-Meter on R x 1 scale.
a. Primary winding :Approximately 0.72 Ohms.
b. Filament winding :Less than 1 Ohm.
c. Secondary winding :Approximately 133 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.
Ohm-MeterOhm-Meter
Ohm-Meter
Ohm-MeterOhm-Meter
START
CLOCKPOPCORN
FROZEN
VEGETABLES
KITCHEN
TIMER
ADD
30 SEC
TERMINALS OF FPC CONNECTORTERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTOR
TERMINALS OF FPC CONNECTORTERMINALS OF FPC CONNECTOR
Figure 2Figure 2
Figure 2
Figure 2Figure 2
Note Note
Note : Remove varnish of
Note Note
measured point.
- 3 -
Figure 3Figure 3
Figure 3
Figure 3Figure 3
5.5.
EXPLODED VIEW AND PEXPLODED VIEW AND P
5.
EXPLODED VIEW AND P
5.5.
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
Part No.DescriptionQ’ty
No.
1617 186 2096Cabinet (EM-N107WS)1
1617 186 9950Cabinet (EM-N107BS)1
2411 082 5201SCR TPG TRS 4 x 10 Z16
3411 160 6007SCR TPG TRS + SRT 4 x 10 Z13
4617 216 8906Power Cord1
5411 160 6106SCR S-T TRS + SRT 4 x 10 Z11
6617 226 0402Oven Cavity*** (Not Service Part)1
7617 124 1068Gear Motor1
8411 010 5808SCR EVR PAN 4 x 10 Z12
9617 177 8656Bottom Plate*** (Not Service Part)1
10617 167 5573Plastic Foot with Canoe Clip4
11411 011 0802Bolt Hex+SW+W 5 x 14 Z1***2
12617 180 6137Hinge, Lower***1
13411 089 2500Washer F 5 x 10 x 0.81
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)