MICROWAVE OVEN
BASIC : SMH7178STD
MODEL : SMH7178STE
SERVICE
MICROWAVE OVEN
Manual
CONTENTS
1. Precaution
2. Specifications
3. Operating Instructions
4. Disassembly and Reassembly
5. Alignment and Adjustments
6. Troubleshooting
7. Exploded Views and Parts List
8. PCB Diagrams
9. Schematic Diagrams
SEA
10. Reference
Contents
1. Precaution
1-1 Safety precautions
1-2 Special Servicing Precautions (Continued)
1-3 Special High Voltage Precautions
2. Specifications
2-1 Table of Specifications
3. Operating Instructions
3-1 Control Panel
3-2 Features & External Views
3-3 Accessary
3-4 INSTALLATION
3-4 REUSABLE GREASE FILTERS
4. Disassembly and Reassembly
4-1 Replacement of Magnetron, Motor Assembly and Lamp
4-2 Replacement of High Voltage Transformer
4-3 Replacement of Door Assembly
4-3-1 Removal of Door “C”
4-3-2 Removal of Door “E”
4-3-3 Removal of Key Door & Spring
4-3-4 Reassembly Test
4-4 Replacement of Fuse & H.V.Trans Fuse
4-5 Replacement of Drive Motor
4-6 Replacement of stirrer motor
4-7 Removal of stirrer
4-8 Replacement of Control Circuit Board
4-8-1 Removal of Control Box
4-3-4 Removal of P.C.B Assembly
5. Alignment and Adjustments
5-1 High Voltage Transformer
5-2 Low Voltage Transformer
5-3 Magnetron
5-4 High Voltage Capacitor
5-5 High Voltage Diode
5-6 Main Relay and Power Control Relay
5-7 Adjustment of Primary Switch, Door Sensing Switch and Monitor Switch
5-8 VENT EXHAUST BLOWER MOTOR
5-9 THERMAL CUTOUT(TCO’s)
5-9-1 Oven Thermal Cutout (Flame sensor)
5-9-2 Replacement of Flame Sensor
5-9-3 Bottom Thermal Cutout
5-9-4 Magnetron Thermal Cutout
5-9-5 Magnetron Thermal Cutout
5-10 SENSOR
5-11 Output Power of Magnetron
5-12 Procedure for Measurement of Microwave Energy Leakage
5-13 Check for Microwave Leakage
5-14 Note on Measurement
5-15 Leakage Measuring Procedure
6. Troubleshooting
6-1 Electrical Malfunction
6-1 Electrical Malfunction(continued)
7. Exploded Views and Parts List
7-1 Exploded Views
7-2 Main Parts List
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Contents
7-3 Control & Door Parts List
7-4 Standard Parts List
8. P.C.B Diagrams
8-1 P.C.B Diagrams
8-2 P.C.B Parts List
8-2 P.C.B Parts List(continued)
9. Schematic Diagrams
9-1 Schematic Diagrams
10. Reference
10-1 Model name standard
10-2 Customer inquiry cases and countermeasures
10-2 Customer inquiry cases and countermeasures (Continued)
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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.
1. Precaution
Follow these special safety precautions. Although the microwave oven is completely safe during ordinary use,
repair work can be extremely hazardous due to possible exposure to microwave radiation, as well as potentially
lethal high voltages and currents.
1-1 Safety precautions (
)
1. All repairs should be done in accordance with the
procedures described in this manual. This product
complies with Federal Performance Standard 21
CFR Subchapter J(DHHS).
11. To avoid any possible radiation hazard,replace
parts in accordance with the wiring diagram. Also,
use only the exact replacements for the following
parts: Primary and secondary interlock switches,
interlock monitor switch.
2. Microwave emission check should be performed
to prior to servicing if the oven is operative.
3. If the oven operates with the door open :
Instruct the user not to operate the oven and
contact the manufacturer and the center for devices
and
radiological health immediately.
4. Notify the Central Service Center if the
microwave leakage exceeds 5 mW/cm2.
12. If the fuse is blown by the Interlock Monitor Switch:
Replace all of the following at the same time:
Primary, door sensing switch and power relay, as
well as the Interlock Monitor Switch. The correct
adjustment of these switches is described
elsewhere in this manual. Make sure that the fuse
has the correct rating for the particular model being
repaired.
13. Design Alteration Warning:
Use exact replacement parts only, i.e.,only those
that are specified in thedrawings and parts lists
of this manual. This is especially important for the
Interlock switches, described above. Never alter
or add to the mechanical or electrical design of the
MWO. Any design changes or additions will void
the manufacturer’s warranty. Always unplug the
unit’s AC power cord from the AC power source
before attempting to remove or reinstall any
component or assembly.
5. Check all grounds.
6. Do not power the MWO from a “2-prong”
AC cord. Be sure that all of the built-in
protective devices are replaced. Restore any
missing protective shields.
7. When reinstalling the chassis and its
assemblies, be sure to restore all protective
devices, including: nonmetallic control
knobs and compartment covers.
14. Never defeat any of the B+ voltage interlocks.
Do not apply AC power to the unit (or any of its
assemblies) unless all solid-state heat sinks are
correctly installed.
8. Make sure that there are no cabinet openings
through which people --particularly children
--might insert objects and contact dangerous
voltages. Examples: Lamp hole,ventilation slots.
15. Some semiconductor (“solid state”) devices are
easily damaged by static electricity. Such
components are called Electrostatically Sensitive Devices (ESDs). Examples include integrated
circuits and field-effect transistors. Immediately
before handling any semiconductor components
or assemblies, drain the electrostatic charge from
your body by touching a known earth ground.
9. Inform the manufacturer of any oven foundto
have emission in excess of 5 mW/cm2 ,Make
repairs to bring the unit into compliance at no cost
to owner and try to determine cause.
Instruct owner not to use oven until it has been
brought into compliance.
CENTRAL SERVICE CENTER
16. Always connect a test instrument’s ground lead to
the instrument chassis ground before connecting
the positive lead; always remove the instrument’s
ground lead last.
10. Service technicians should remove their watches
while repairing an MWO.
-1-
1-2 Special Servicing Precautions (Continued)
17. When checking the continuity of the witches or transformer,
always make sure that the power is OFF, and one of the
lead wires is disconnected.
18. Components that are critical for safety are indicated in the
circuit diagram by shading,
or
.
19. Use replacement components that have the same ratings,
especially for flame resistance and dielectric strength specifications.
A replacement part that does not have the same safety characteristics
as the original might create shock, fire or other hazards.
NOTE : Connect the oven to a 20A. When connecting the oven to a
15A,make sure that circuit breaker can operate.
1-3 Special High Voltage Precautions
High Voltage Capacitor
1. High Voltage Warning Do not attempt to
measure any of the high voltages --this includes
the filament voltage of the magnetron. High
voltage is present during any cook cycle.
Before touching any components or wiring,
always unplug the oven and discharge the high
voltage capacitor (See Figure 1-1)
2. The high-voltage capacitor remains charged
about 30 seconds after disconnection. Short the
negative terminal of the high-voltage capacitor to
to the oven chassis. (Use a screwdriver.)
3. High voltage is maintained within specified limits
by close-tolerance, safety-related components
and adjustments. If the high voltage exceeds the
specified limits, check each of the special
components.
Fig. 1-1 Discharging High Voltage Capacitor
PRECAUTION
PRECAUTION
There exists HIGH VOLTAGE ELECTRICITY with
high current capabilities in the circuits of the HIGH
VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work
on or near these circuits with the oven energized.
DO NOT measure the voltage in the high voltage
circuit including filament voltage of magnetron.
Never touch any circuit wiring with your hand nor
with uninsulated tool during operation.
PRECAUTION
Servicemen should remove their watches whenever working close to or replacing the magnetron.
-2-
2. Specifications
2-1 Table of Specifications
TIMER
99 MINUTES 99 SECONDS
POWER SOURCE
120V 60Hz, AC
POWER CONSUMPTION
MICROWAVE : 1,650W
OUTPUT POWER
FROM 100 TO 1100W(10 LEVEL POWER)
(IEC-705 TEST PROCEDURE)
OPERATING FREQUENCY
2,450MHz
MAGNETRON
OM75P(10)ERHN
COOLING METHOD
COOLING FAN MOTOR
OUTSIDE DIMENSIONS
2914/16”(W) x 1515/16”(H) x 1511/32”(D) mm
NET WEIGHT
58.4 lbs
SHIPPING WEIGHT
64.4 lbs
-3-
3. Operating Instructions
3-1 Control Panel
1. Sensor Reheat
2. Power Defrost
Sets weight of food to be defrosted.
3. Sensor Cook Buttons p.11
Sensor settings to cook popular foods.
1
13
4. Handy Helper, Kids Meals, Snack Bar
2
11
5. More/Less
Selects type of dish to be reheated.
Increase or decrease cooking time.
6. Number Buttons
3
Set cooking times or amounts and power
levels other than high.
7. Power Level
Press this pad to set a power level other
than high.
4
8. Clock am/pm
Sets current time
17
5
12
6
8
7
15
16
14
9
9. Light On/Night/Off Button
10. Turntable On/Off Button
11. One Minute +
Press once for every minute of cooking at
High power.
12. My Choice
Press to set non-cooking feature.
13. Custom Cook
Press twice to program your favorite recipe.
Press once to cook with that recipe.
14. Start
18
10
Press to start cooking.
15. Kitchen Timer
Sets kitchen or convenience timer.
16. Pause/Cancel
Press to pause oven or correct a mistake.
17. Help
Press to see help information about the
feature you are using.
18. Vent Fan Turbo/Hi/Low/Off Button
-4-
3-2 Features & External Views
Door
Ventilation Holes
Oven Light
Safety Interlock Holes
Control Panel
Handle
417.25mm
Glass Tray Guide Roller Intake Holes
405mm
Door Latches
758.9mm
398mm
-5-
3-3 Accessary
Glass tray
Roller guide ring
-6-
3-4 INSTALLATION
The Microwave Oven is supported by a special
bracket assembly (mounting system) supplied with
the oven. The bracket assembly must be mounted to
the wall with toggle bolts through the wall, and a lag
screw into a wall stud. After the bracket assembly is
installed, the unit can be slid over the two rails of the
bracket assembly. Two bolts are run down through the
cabinet bottom and into the oven case to pull the oven
up against the cabinet bottom.
NOTE : For easier removal and personal safety it is
recommended that two people remove this
product.
Mounting Plate
CAUTION!
The mounting surface must be capable of supporting the cabinet load, in addition to the 64 pound
product, plus additional loads of up to 50 pounds or a
total weight of 114 pounds. This product cannot be
installed to cabinet arrangements such as an island or
peninsula. It must be mounted to both a top cabinet
and wall.
VENT BLOWER
The vent or exhaust blower is located at the top
of the oven. It is shipped for vertical exhaust but
can be changed to rear exhaust or recirculating
(See installation instrustions on how to change
and/or blower section on how to remove).
REMOVE SCREWS
COOKTOP LIGHTS
One 40-watt screw base incandescent bulbs are
located on the bottom between the two grease
filters. The bulbs are user replaceable by removing
one screw and lowering access cover. The bulbs
could be difficult to remove when replaced for the
first time. a silicone glue is used to secure them
during shipping.
OVEN LIGHT
A 40-watt screw base incandescent bulb is located
in the top of the oven cavity at the front.
It is user replaceable by removing the top grill
(2 screws. On the front of outer case.). The bulb
is then accessible by removing a metal cover (1
screw).
-7-
3-5 REUSABLE GREASE FILTERS
The metal filter trap grease released by foods on
the cooktop. They also prevent flames from foods
on the cooktop from damaging the inside of the
microwave.
Charcoal Filter
For this reason, the filters must ALWAYS be in
place when the hood the vent fan is used. The
grease filter should be cleaned once a month, or
as needed.
REMOVING CHARCOAL FILTER
To remove the charcoal filter, disconnect power
at the main fuse or circuit breaker panel or pull
the plug. Remove the top grille by removing the 2
screws that hold it in place.
Reusable Grease Filters
Screws
Slide the filter towards the filter towards the front
of the oven and remove it.
AUTOMATIC FAN
An automatic fan feature protects the microwave
from too much heat rising from the cooktop below
it. If you have turned the fan on you may find that
you cannot turn it. The fan will automatically turn
off when the internal parts are cool. If may stay
on for 30 minutes or more after the cooktop and
microwave controls are turned off.
GRILLE REMOVAL
The top full-width grille is removable for service
to some components, such as : oven light, cavity
T.C.O, vent motor capacitor and fuse.
TO REMOVE GRILLE :
1. Disconnect oven power.
2. Remove screws (2) from grille outer case.
3. Lift off grille.
REMOVING OVEN FROM WALL
(2 PEOPLE REQUIRED)
Oven is hooked on metal tabs at bottom of wall
mounting plate and fastened to cabinet by (3) top
cabinet bolts.
CAUTION : Oven weights 63.1 lbs. Requires 2
people for removal.
1. Disconnect power cord. Top vented modelsdisconnect duct and remove damper assembly.
2. Remove (3) top cabinet bolts.
3. Pull unit forward slowly providing adequate
support to prevent dropping unit during removal of last top cabinet bolts.
-8-
Remove 2 grille screws to remove the grill
4. Disassembly and Reassembly
4-1 Replacement of Magnetron, Motor Assembly and Lamp
Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors
(all of which are contained in one assembly).
1. Disconnect all lead wires from the magnetron and lamp.
2. Remove a screw securing air cover.
3. Remove the air cover.
4. Remove screws securing the magnetron to the wave guide.
5. Take out the magnetron very carefully.
6. Remove tow from the back panel of fan motor assembly.
7. Take out the fan motor assembly.
8. Remove the oven lamp by rotating to pull out from hole of air cover.
NOTE1: When removing the magnetron, make sure that its antenna does not hit any adjacent parts, or it may
be damaged.
NOTE2: When replacing the magnetron, be sure to remount the magnetron gasket in the correct position and
make sure the gasket is in good condition.
4-2 Replacement of High Voltage Transformer
1. Discharge the high voltage capacitor.
2. Disconnect all the leads.
3. Remove the mounting bolts.
4. Reconnect the leads correctly and firmly.
PRECAUTION
Servicemen should remove their watches whenever working close to or replacing the magnetron.
PRECAUTION
There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH
VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near
these circuits with the oven energized.
DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron.
-9-
4-3 Replacement of Door Assembly
4-3-1 Removal of Door “C”
Insert flat screw driver into the gap between Door
“A” and Door “C” to remove Door “C”. Be careful
when handling Door “C” because it is fragile.
Then remove the door assembly.
Door "A"
Door "C"
4-3-2 Removal of Door “E”
DOOR "E"
Following the procedure as shown in the figure,
insert and bend a thin metal plate between Door
“E” and Door “A” until you hear the ‘tick’ sound.
- Insertion depth of the thin metal plate should be
0.5mm or less.
4-3-3 Removal of Key Door & Spring
Remove pin hinge from Door “E”
Detach spring from Door “E” and key door.
Spring
- 10 -
4-3-4 Reassembly Test
After replacement of the defective component parts of the door, reassemble it and follow the instructions below for proper installation and adjustment so as to prevent an excessive microwave leakage.
1. When mounting the door to the oven, be sure to adjust the door parallel to the bottom line of the oven face
plate by moving the upper hinge and lower hinge in the direction necessary for proper alignment.
2. Adjust so that the door has no play between the inner door surface and oven front surface. If the door assembly is not mounted properly, microwave energy may leak from the space between the door and oven.
3. Do the microwave leakage test.
4-4 Replacement of Main Fuse & H. V. Trans Fuse
The fuse is located behind the control panel mounted
to the installation bracket.
1. Disconnect power and remove grille.
2. Remove a screw that secure the installation
bracket.
MAIN FUSE
1. When 20A fuse blows out by the operation of
interlock monitor switch failure, replace the
primary interlock switch, door sensing switch,
interlock monitor switch and power relay.
2. When the above 3 switches operate properly,
check if any other part such as the control
circuit board, blower motor or high voltage
transformer is defective.
H. V. Trans
FUSE
MAIN FUSE
H. V. TRANS FUSE
1. When 20 Amp. fuse is blown due to operation of the H. V. Trans fall mode, the H. V. Trans Fuse must be
replaced.
4-5 Replacement of Drive Motor
1. Disconnect power.
2. Remove the three screws at the assy base bottom.
3. Remove the plastic cover (fixed with a screw) that
covers the motor.
4. Remove all of the wires connected.
5. Remove a screw from the motor.
6. Turn the motor to the right and remove it.
7. After replacing the motor, you should re-install it on
the accurate position of the coupler.
8. Assembling is in the reverse order to disassebling.
BASE PLATE
DRIVE MOTOR
- 11 -
Screw(1)
4-6 Replacement of stirrer motor
1. Disconnect power and remove grille screws(2).
2. Remove grille and the bracket duct upper screw(1).
3. Remove the bracket duct upper and disconnect the
stirrer motor wire.
4. Remove stirrer motor screws(1) and lift up stirrer
motor after turn left.
STIRRER MOTOR
4-7 Removal of stirrer
The stirrer is located on the upper side of the cavity. The oven uses a top feed wave guide.
1. Disconnect power and open the door.
2. Remove the clip and turn the stirrer cover left.
3. Remove stirrer cover and the stirrer will come with
it.
4. Replace the clip if the clip head broken.
CLIP
COVER STIRRER
STIRRER ASSEMBLY
COVER STIRRER
- 12 -
4-8 Replacement of Control Circuit Board
4-8-1 Removal of Control Box
1. Disconnect power and remove grille.
2. Remove a screw securing the control box
assembly.
3. Be sure to ground any static electric charge in
your body and never touch the control circuit.
4. Disconnect the connectors from the control
circuit board.
4-8-2 Removal of P.C.B Assembly
1. Pull the lever end of the plastic fastener and
remove the Flexible Printed Circuit(FPC) of
membrane panel.
2. Remove screws (3) securing the control circuit
board.
FPC
connector
3. Lift up the control circuit board from the Ass’y
control box.
4. When reconnecting the FPC connector, make
sure that the holes on the connector are properly
engaged with the hooks on the Plastic Fastener.
4 Screws
- 13 -
5. Alignment and Adjustments
PRECAUTION
1. High voltage is present at the high voltage terminals during any cook cycle.
2. It is neither necessary nor advisable to attempt measurement of the high voltage.
3. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the high voltage capacitor.
5-1 High Voltage Transformer
1. Remove connectors from the transformer terminals
and check continuity.
2. Normal resistance readings are as follows:
(Room temperature = 20°C)
Filament Terminals
Secondary
Terminal
SHV-U1870AR
Secondary
80.5 Ω +2%
Filament
Shows Continuity
Primary
1100W 0.330 Ω + 2%
1000W 0.375 Ω + 2%
Primary
Terminals
5-2 Low Voltage Transformer
1. The low voltage transformer is located on the
control circuit board.
2. Remove the low voltage transformer from the
PCB Ass’y and check continuity.
3. Normal resistor reading is shown in the table.
Resistance
Terminals
SLV-1350U(P)
1~2(Input)
127.7 Ω
4~5(Output 2.7V)
1.8 Ω
6~7(Output 7.0V)
2.0 Ω
7~8(Output 19.0V)
4.8 Ω
5-3 Magnetron
1. Continuity checks can indicate only an open
filament or a shorted magnetron. To diagnose an
open filament or shorted magnetron :
2. Isolate the magnetron from the circuit by
disconnecting its leads.
3. A continuity check across the magnetron filament
terminals should indicate one ohm or less.
4. A continuity check between each filament terminal
and magnetron case should read open.
Magnetron Antenna
Gasket Plate
Cooling Fins
- 14 -
5-4 High Voltage Capacitor
1. Check continuity of the capacitor with the meter set at the highest resistance scale.
2. Once the capacitor is charged, a normal capacitor shows continuity for a short time, and then indicates 9MΩ.
3. A shorted capacitor will show continuous continuity.
4. An open capacitor will show constant 9MΩ.
5. Resistance between each terminal and chassis should read infinite.
5-5 High Voltage Diode
1. Isolate the diode from the circuit by disconnecting its leads.
2. With the ohm-meter set at the highest resistance scale, measure across the diode terminals. Reverse the
meter leads and read the resistance. A meter with 6V, 9V or higher voltage batteries should be used to check
the front-to back resistance of the diode (otherwise an infinite resistance may be read in both directions).
The resistance of a normal diode will be infinite in one direction and several hundred KΩ in the other
direction.
5-6 Main Relay and Power Control Relay
1. The relays are located on the PCB Ass’y. Isolate them from the main circuit by disconnecting the leads.
2. Operate the microwave oven with a water load in the oven. Set the power level set to high.
3. Check continuity between terminals of the relays after the start pad is pressed.
5-7 Adjustment of Primary Switch, Door Sensing Switch and Monitor Switch
PRECAUTION
For continued protection against radiation hazard, replace parts in accordance with the wiring diagram and be sure
to use the correct part number for the following switches: Primary and secondary interlock switches, and the interlock monitor switch (replace all together). Then follow the adjustment procedures below. After repair and adjustment, be sure to check the continuity of all interlock switches and the interlock monitor switch.
1. When mounting Primary switch and Interlock Monitor switch to Latch Body, consult the figure.
2. No specific adjustment during installation of Primary switch and Monitor switch to the latch body is
necessary.
3. When mounting the Latch Body to the oven assembly, adjust the Latch Body by moving it so that the
oven door will not have any play in it. Check for play
in the door by pulling the door assembly. Make sure
that the latch keys move smoothly after adjustment
is completed. Completely tighten the screws holding
the Latch Body to the oven assembly.
4. Reconnect to Monitor switch and check the continuity of the monitor circuit and all latch switches again
by following the components test procedures.
5. Confirm that the gap between the switch housing
and the switch actuator is no more than 0.5mm
when door is closed.
6. Interlock Switch Replacement - When replacing
faulty switches, be sure switch mounting tabs are
not bent, broken or otherwise deficient in their ability to secure the switches in place.
- 15 -
Primary Interlock Switch
Body Latch
Interlock Monitor
Switch
Door Sensing Switch
(Secondary
Interlock Switch)
Lever Switch(A)
Primary Interlock S/W
Monitor switch(COM-NC)
Door Sensing S/W
(Secondary Interlock S/W)
Door Open
Door Closed
∞
0
∞
0
∞
0
5-8 Vent Exhaust Blower Motor
THIS COMPONENT REQUIRE REMOVAL OF
MICROWAVE OVEN FROM INSTALLATION FOR
SERVICING.
The blower is a two speed (HI-LO) capacitor run
blower assembly located on top of the microwave oven. The blower is operated by low
voltage relays located on the smart board.
The blower motor has 3 winding which can be
tested for continuity from the front by removing
the top grille and opening the control panel.
RUN CAPACITOR
The run capacitor is located behind the top
grille above the control area. The capacitor is
used for more torque and electrical phasing.
Without the capacitor the blower might run but
would be much slower.
Damper ASM
Blower ASM
TO TEST THE CAPACITOR
1. Remove grille, discharge capacitor and disconnect
one capacitor lead.
2. Make appropriate capacitor check (with analog
meter needle should rise then fall, cap is charging
then discharging).
TO TEST BLOWER WINDINGS:
1. Disconnect power and remove grille.
2. Open control panel and discharfe capacitor.
3. Disconnent two wires to run capacitor. Continuity
test across the two wires should ve approximately
75 ohms of resistance. This test allows you to read
across all three windings at the same time.
TO REMOVE VENT BLOWER
1. Remove unit from its installation.
2. Remove 5 screws securing damper and motor assembly to top and back of unit and lift off.
(1 screw is located under damper.)
3. Disconnect blower plug.
NOTE: Place blower wires in routing slots to avoid
pinching of wires.
- 16 -
5-9 Thermal Cutout (TCO’S)
There are 4 different thermal cutouts in this unit with 4 different purposes. They are :
1. Oven thermal cutout (flame sensor), on cavity top.
2. Hood thermal cutout, inside control area on duct.
3. Bottom thermal cutout, on floor of control area.
4. Magnetron thermal cutout, on magnetron.
5-9-1 Oven Thermal Cutout (Flame sensor)
The oven thermal cutout(Cavity TCO) is located
on the top side of the oven cavity beside exhaust
duct with a temperature rating of 248OF(120OC)
and is non-resetable.
The cutout is tightly held to the top of the oven
cavity by duct-upper.
OVEN THERMAL CUTOUT
STIRRER MOTOR
5-9-2 Replacement of Flame Sensor
Disconnect oven power. Remove Grille & Panel-outer.
1. Remove screws(3) securing the duct upper.
SCREW
T.C.O
SCREW
Screw
2. Loft up the duct upper from the cavity.
3. Disconnect two wire leads.
4. Press the top of the thermal cutout and pull out it in
the duct upper.
Press the Flame Sensor
After press
- 17 -
5-9-3 Bottom Thermal Cutout
This cutout will protect the touch control from excessive heat by turning the vent fan on at low speed. If the
surface units of the range are used for long periods of
time heat will build up and could damage the microwave control. In order to prevent this a thermal cutout
is installed on the duct behind the control. This cutout
will close (158°F/70°C - vent fan energized)and open
(104°F/40°C - vent fan de-energized) depending on
temperatures it sense.
To Remove hood Thermal Cutout :
1. Disconnect power and remove grille.
2. Remove control box assembly.
3. Remove two wire leads and unscrew one screw
capturing cutout on base plate.
NOTE : It this cutout were to open it would be difficult
to detect. The only time it functions is during
an overheat condition. It will be normally open
when checked with an ohmmeter.
5-9-4 Magnetron Thermal Cutout
HOOD THERMAL CUTOUT
BOTTOM THERMAL CUTOUT
HOOD THERMAL CUTOUT
THIS COMPONENT REQUIRE REMOVAL OF
MICROWAVE OVEN FROM INSTALLATION FOR
SERVICING.
During a fire on the stove the heat could be intense
enough to close the Hood Thermal Cutout and force
the fan to run. While at moderate high temperature we
do want it to run, however during a fire it is advantageous to NOT have the vent fan running. So if a fire were
to start on the stove top the Bottom Thermal Cutout
would open at 248°F(120°C) and remove all power to
the microwave oven. This cutout is designed to not be
resetable.
To Remove Bottom Thermal Cutout :
1. Disconnect power and remove grille.
2. Remove control box assembly.
3. Remove two wire leads and unscrews one screw
capturing cutout on base plate.
- 18 -
BOTTOM THERMAL CUTOUT
5-9-5 Magnetron Thermal Cutout
The magnetron thermal cutout is located above the
leads to the magnetrons. It is designed to prevent
damage to the magnetron if an overheated condition
develops in the tube to cooling fan failure, obstructed
air ducts, dirty or blocked air intake.
Under normal operation, the magnetron thermal cutout
remains closed. However, when abnormally high
temperatures are reached within the magnetron, the
magnetron thermal cutout will open at 320°F(160OC)
causing the oven to shut down. After the temperature
drops to 140°F(60°C) it will reset and cooking will be
able to resume.
To Remove Magnetron Thermal Cutout :
1. See ‘Removing Magnetron’.
MAGNETRON THERMAL CUTOUT
MAGNETRON
5-10 Sensor
The Sensor Cooking Function uses a special gas
sensor which detects both humidity(steam) and
hydrocarbons(food odors) during the cooking
process. Before conducting either of the sensor
tests below, ensure the unit is plugged into a will
outlet for at least 5 minutes. If already plugged
in, proceed. The sensor is a plug-in device
located in the vent area at the top left hand
corner of the cavity behind the grille.
VENT MOTOR
To Service :
1. Disconnect power and remove grille.
2. Separate retainer from receptacle and
unplug sensor.
GAS SENSOR
SENSOR COOKING TEST
1. Place 1/3 cup tap water in oven.
2. Touch potato , the oven starts immediately.
3. Control Beeps and Shuts off.
4. Touch Pause/Cancel .
1) Test OK - Normal
2) Test Fails - Check Sensor. See Sensor Test Below.
SENSOR TEST (QUICK TEST)
1. With 2 fingers touch and hold the following pads at the same time :
Power Defrost and Sensor Reheat
2. Observe diagnostic number in display (Numbers approximate).
● 15-185 (Normal-verify with “detection test” )
● 213 or Higher (Sensor failed to open, sensor
unplugged, wiring or smart board.)
● Less then 6 (shorted sensor, or smart board).
NOTE : Only heater terminals ( H ; Black and Red leads) can be checked with ohmmeter(30Ω).
CAUTION : DO NOT ATTEMPT TO CHECK SENSOR TERMINALS (White and Orange leads).
♣ CAN DAMAGE SENSOR.
- 19 -
5-11 Output Power of Magnetron
CAUTION
MICROWAVE RADIATION
PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY.
The output power of the magnetron can be measured by performing a water temperature rise test.
Equipment needed :
* Two 1-liter cylindrical borosilicate glass vessel (Outside diameter 190 mm)
* One glass thermometer with mercury column
NOTE: Check line voltage under load. Low voltage will lower the magnetron output. Make all temperature and time tests
with accurate equipment.
1. Fill the one liter glass vessel with water.
2. Stir water in glass vessel with thermometer, and record glass vessel’s temperature (“T1”, 10±1°C).
3. After moving the water into another glass vessel, place it in the center of the cooking tray. Set the oven to high power and
operate for 41 seconds exactly. (3 seconds included as a holding time of magnetron oscillation:)
4. When heating is finished, stir the water again with the thermometer and measure the temperature (“T2”).
5. Subtract T1 from T2. This will give you the water temperature rise. (∆T)
6. The output power is obtained by the following formula;
Output Power =
4.187 x 1000 x ∆T+0.55xMcx(T2 -T1)
38
38 : Heating Time (sec)
41 : Counting Time (sec)
4.187 : Coefficient for Water
1000 : Water (cc)
∆T : Temperature Rise (T2-T1)
To : Room Temperature
Mc : Cylindrical borosilicate glass weight
7. Normal temperature rise for this model is 9.9°C to 10.3°C at ‘HIGH’.
NOTE 1: Variations or errors in the test procedure will cause a variance in the temperature rise.
Additional power test should be made if temperature rise is marginal.
NOTE 2: Output power in watts is computed by multiplying the temperature rise (step 5) by a factor of 91 times the of
centigrade temperature.
- 20 -
5-12 Procedure for Measurement of Microwave Energy Leakage
1) Pour 275±15cc of 20±5°C(68±9°F) water in a beaker
which is graduated to 600cc, and place the beaker in
the center of the oven.
2) Start to operate the oven and measure the leakage by
using a microwave energy survey meter.
3) Set survey meter with dual ranges to 2,450MHz.
4) When measuring the leakage, always use the 2 inch
spacer cone with the probe. Hold the probe perpendicular
to the cabinet door. Place the spacer cone of the probe on
the door and/or cabinet door seam and move along the
seam, the door viewing window and the exhaust openings
moving the probe in a clockwise direction at a rate of 1 inch/sec. If the leakage testing of the cabinet door
seam is taken near a corner of the door, keep the probe perpendicular to the areas making sure that the
probe end at the base of the cone does not get closer than 5cm to any metal. If it gets closer than 5cm,
erroneous readings may result.
5) Measured leakage must be less than 4mW/cm2 , after repair or adjustment.
Maximum allowable leakage is 5mW/cm2 .
4mW/cm2 is used to allow for measurement and meter accuracy
5-13 Check for Microwave Leakage
1. Remove the outer panel.
2. Pour 275±15cc of 20±5°C(68±9°F) water in a beaker
which is graduated to 600cc, and place the beaker
in the center of the oven.
3. Start the oven at the highest power level.
4. Set survey meter dual ranges to 2,450MHz.
5. Using the survey meter and spacer cone as described
above, measure near the opening of magnetron, the
surface of the air guide and the surface of the wave
guide as shown in the following photo.( but avoid the
high voltage components.) The reading should be less than 4mW/cm2 .
5-14 Note on Measurement
1) Do not exceed the limited scale.
2) The test probe must be held on the grip of the handle, otherwise a false reading may result when the operator’s hand is between the handle and the probe.
3) When high leakage is suspected, do not move the probe horizontally along the oven surface; this may cause
damage to the probe.
4) Follow the recommendation of the manufacturer of the microwave energy survey meter.
5-15 Leakage Measuring Procedure
5-15-1 Record keeping and notification after measurement
1) After adjustment and repair of a radiation preventing device, make a repair record for the measured values,
and keep the data.
2) If the radiation leakage is more than 4mW/cm2 after determining that all parts are in good condition, functioning properly and the identical parts are replaced as listed in this manual notify that fact to ;
CENTRAL SERVICE CENTER
5-15-2 At least once a year have the microwave energy survey meter checked for accuracy by its
manufacturer.
- 21 -
6. Troubleshooting
PRECAUTION
1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE.
2. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT.
3. DISCHARGE THE HIGH VOLTAGE CAPACITOR.
4. WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE LEAD
WIRE FROM THESE PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE ON. TO
DO OTHERWISE MAY RESULT IN A FALSE READING OR DAMAGE TO YOUR METER.
5. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCE STATIC
DISCHARGE MAY DAMAGE IT. ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE
ANY STATIC CHARGE BUILT UP.
6-1 Electrical Malfunction
SYMPTOM
CAUSE
CORRECTIONS
Oven is dead.
Fuse is OK.
No display and no operation
at all .
1. Open or loose lead wire harness
2. Open thermal cutout (Magnetron)
3. Open low voltage transformer
4. Defective Ass’y PCB
Check fan motor when thermal
cutout is defective.
Check Ass’y PCB when LVT is
defective.
No display and no operation
at all. Fuse is blown.
1. Shorted lead wire harness
Check adjustment of primary,
2. Defective primary latch switch (NOTE 1) interlock monitor, power relay, door
3. Defective monitor switch (NOTE1)
sensing switch.
4. Shorted HVCapacitor
5. Shorted HVTransformer (NOTE2)
NOTE 1: All of these switches must be replaced at the same time.
(refer to adjustment instructions)
Check continuity of power relay contacts and if it has continuity,
replace power relay also.
NOTE 2: When HVTransformer is replaced, check diode and magnetron also.
Oven does not accept
key input (Program)
Timer starts countdown but
no microwave oscillation.
(No heat while oven lamp
and fan motor turn on.)
1. Key input is not in-Sequence
2. Open or loose connection of membrane
key pad to Ass’y PCB
3. Shorted or open membrane panel
4. Defective Ass’y PCB
Refer to operation procedure.
1. Off-alignment of latch switches
2. Open or loose connection of high
voltage circuit especially magnetron
filament circuit
NOTE: Large contact resistance will
bring lower magnetron filament
voltage and cause magnetron to
lower output and/or intermittent
oscillation.
3. Defective high voltage components
H.V.Transformer H.V. Capacitor
H.V.Diode, H.V.Fuse Magnetron
4. Open or loose wiring of power relay
5. Defective primary latch switch
6. Defective power relay or Ass’y PCB
Adjust door and latch switches.
- 22 -
Replace PCB main.
Check high voltage component
according to component test
procedure and replace if it is
defective.
Replace PCB main.
6-1 Electrical Malfunction(continued)
SYMPTOM
CAUSE
CORRECTIONS
Oven lamp and fan motor turn
on
1. Misadjustment or loose wiring
of primary latch switch
2. Defective primary latch switch
Adjust door and latch switches.
Oven can program but timer
does not start.
1. Open or loose wiring of secondary i
nterlock switch
2. Off-alignment of primary interlock
3. Defective secondary interlock S/W
Adjust door and interlock switches.
Microwave output is low;.
Oven takes longer time to
cook food.
1. Decrease in power source voltage.
2. Open or loose wiring of magnetron
filament circuit. (Intermittent oscillation))
3. Aging of magnetron
Consult electrician.
Fan motor turns on when
plugged in
Loose wiring of door sensing switch
Check wire of door sensing switch.
Oven does not operate and
return to the plugged in mode.
Defective Ass’y PCB
Replace PCB main.
Loud buzzing noise can be
heard.
1. Loose fan and fan motor
2. Loose screws on H.V.Transformer
3. Shorted H.V.Diode
Tighten screws of fan motor.
Tighten screws of H.V.Transformer.
Replace H.V.Diode.
Turntable motor does not
rotate.
1. Open or loose wiring of turntable motor.
2. Defective turntable motor.
Replace turntable motor.
Oven stops operation during
cooking
1. Open or loose wiring of primary interlock
switch
2. Operation of thermal cutout (Magnetron)
Adjust door and latch switches.
Sparks
1. Metallic ware or cooking dishes touching
on the oven wall.
2. Ceramic ware trimmed with gold or
silver powder also causes sparks.
Inform the customer.
Do not use any type of cookware
with metallic trimming.
Uneven cooking
Uneven intensity of microwave due to its
characteristics.
Wrap thinner parts of the food with
aluminum foil.
Use plastic wrap or cover with a
lid. Stir once or twice while cooking
foods such as soup, cocoa, or milk.
Noise from the turntable motor
when it starts to operate.
Noise may result from the motor.
Replace turntable motor.
Display error1
Shorted sensor’s circuit.
Let oven cool for at least 5minutes.
Check connection of the sensor if
the sensor’s circuit was shorted or
not by the alien substance.
Display error2
Open sensor’s circuit.
Check connection of sensor’s wire.
Display error3
On the cooling mode, sensor’s Vout was
not less than 4.7V within 3minutes.
Let oven cool for at least 5minutes.
Display error4
On the way to sensing, the door was open.
Press the ‘pause/cancel’pad, and
then you have to do all over again.
- 23 -
7. Exploded Views and Parts List
7-1 Exploded Views
P090
P007
M060
U008
P087
P088
P091
P089
M061
P125
P007
P006
P012
T017
W002
P013
T001
P014
P032
W022
M068
M149
P208
P100
M015
P106
M219
T032
P104
C089
P034
P102 M149
P039
P178
P117
P099
M067
P179
P124
P113
P112
H032
D040
D024
W023
M001
P097
P122
P098
P101
M024
M036
P030
M050
U003
P015
M040
P001
T036
D004
M041
T037
M039
M206
D002
D006
C081
D011
D060
D041
D019
M087
M017
M034
D090
U004
U007
C001
P156
C009
P059
P121
M023
M035 M029
B001
U005
U012
C089
B018
B006
M038
C073
C082
M049
U003
R066
H018
M059
M036
D049
D037
P109
M059
D005
P123
P122
C073
D090
B002
B001
U001
C005
C004
C133
C133
M048
- 24 -
M155
B013
M021
7-2 Main Parts List
(S.N.A : SERVICE NOT AVAILABLE)
LEVEL
No
Code No.
Description
Specification
Q’ty
SA/SNA
Remark
ASSY DUCT
UPPER
1-1
M036
4713-001013
LAMP-INCANDESCENT
130V,-,40W,ORG,E17/20,
1
SA
1-1
M038
DE26-00082D
TRANS H.V
SHV-U1870B,120V,60HZ,2460/2220
1
SA
1-1
M024
DE31-00029B
MOTOR VENTILATION
SMV-460UA-1,SMH7175WE/
1
SA
1-1
M049
DE31-10172A
MOTOR-SYNCHRONOUS
M2HJ24Z709,ST-16F,21V,
1
SA
T/T
1-1
M050
DE31-10173A
MOTOR-SYNCHRONOUS
M2HJ29A709,ST-16F,21V,
1
SA
S/T
1-1
M029
DE47-20007A
THERMOSTAT
PW-2N(160/60)187Z,250V7.5A,16
1
SA
MGT
1-1
M059
DE61-00375A
HOLDER-RACK
OTR-1.5CUFT,PP,-,-,-,-,-
4
SA
1-1
P121
DE61-00411A
BRACKET-DUCT REAR
SMH7175,SECC,T0.5,W200
1
SA
1-1
P059
DE63-00138A
COVER-FRONT
SMH7175,SECC,T0.5,W100,L200,
1
SA
1-1
U008
DE63-00196A
FILTER-AIR
SMH7175,AL-MESH,T2.0,W150,L34
2
SA
1-1
M061
DE63-30016D
FILTER-CHARCOAL
SMH7175,AL,T10,W222,L100
1
SA
1-1
M001
DE64-00754A
PANEL-OUTER
SMH7175,V/STEEL,TO.5+0.2,W40
1
SA
1-1
C081
DE66-20095B
BUTTON-LOCK
-,-,OTR5,-,-,TB53)
1
SA
1-1
M034
DE67-00179A
COUPLER
SMH7175,SPS,BRN,-,-,-
1
SA
1-1
M087
DE71-60121A
COVER-STIRRER
-,PP,T2.0,W7,L198,-,85G,-
1
SA
1-1
T001
DE74-20002A
TRAY-COOKING
GLASS,T6,-,-
1
SA
1-1
P012
DE92-90242A
ASSY-HOOD DAMPER
JVM-250BL,OTR4,-,-,-,-
1
SA
1-2
P013
DE71-60051A
COVER-DAMPER
-,FESN5,T0.22,W68,L248.4,-,
1
SA
1-2
P014
DE72-40022A
DAMPER-MAIN
-,SECC,-,W28,L650,OTR4,-,T0.
1
SA
1-1
M060
DE92-90505E
ASSY-HARD WARE
SMH7175,-,-,-
1
SA
1-2
P087
DE60-10111A
SCREW-LAG
-,-,-,-,MSWR,W1/4X50,-,-,-,-
1
SA
1-2
P088
DE60-20022A
BOLT-TOGGLE
MSWR,W3/16X75,-,-,-,-,-,-,-
3
SA
1-2
P089
DE60-20066A
BOLT-FLAT
UNF1/4,L110,MSWR10,-,-,OTR6,-,
3
SA
1-2
P090
DE60-30022A
NUT-TOGGLE
SBC1,ZPC2,WHT,-,-,-,-,-,-
3
SA
1-2
P091
DE63-10011A
GROMMET
-,MS,-,-,-,DACB-16,-,-,-
2
SA
1-1
P032
DE92-90508A
ASSY-HOLDER NUT
OTR6,-,-,-,-,-
1
SA
1-1
B018
DE96-00082C
ASSY BODY LATCH
SMH7175WE/XAA,-
1
SA
1-2
B002
3405-001033
SWITCH-MICRO
125/250VAC 16A,200GF,SPSTNC
1
SA
1-2
B001
3405-001034
SWITCH-MICRO
125/250VAC,16A,200GF,SPST-N
2
SA
1-2
B006
DE66-00084A
BODY-LATCH
JVM-1860,PBT,-,-,-,-,-
1
SA
1-2
B013
DE66-90106B
LEVER-SWITCH LOWER
PBT,T2.0,-,-,2.0g,OTR
1
SA
1-1
M015
DE96-00218A
ASSY-POWER CORD
OTR9,120V60HZ,GE,SJT3/14
1
SA
1-1
M155
DE96-00268A
ASSY BASE PLATE
SMH7175,B/PLATE+TCO
1
SA
1-2
P123
DE47-20034A
THERMOSTAT
40/70,M5,-,-,-,-,-,-
1
SA
1-2
P122
DE47-20059A
THERMOSTAT
PW-2N(8XV),125V15A,V,120/0,23
1
SA
1-2
M048
DE61-00415A
BASE-PLATE
SMH7175,SECC,T0.8,-,-,-,-
1
SA
1-1
M206
DE96-00269A
ASSY-HVC
SMH7175,0.91UF HVC
1
SA
1-2
M039
2501-001011
C-OIL
910nF,2100V,BK,54x35x75mm,20mm
1
SA
1-2
M040
DE61-00115A
BRACKET-HVC
SMH7175,SECC,T0.6,-,-,-,-
1
SA
1-2
M041
DE91-70063D
ASSY-HVD
HV03-12,MWO-GE,RED
1
SA
1-1
W002
DE96-00490A
ASSY-WIRE HARNESS A
SMH7178STE/XAA,120V/
1
SA
1-1
U001
DE97-00360A
ASSY-BASE BOTTOM
SMH7175,INCANDESCENT LA
1
SA
1-2
M036
4713-001013
LAMP-INCANDESCENT
130V,-,40W,ORG,E17/20,
2
SA
- 25 -
MONITOR
7-2 Main Parts List
(S.N.A : SERVICE NOT AVAILABLE)
LEVEL
No
Code No.
1-2
U003
DE47-00006A
Q’ty
SA/SNA
HOLDER-LAMP
1-2
U007
1-2
U004
1-2
U012
1-2
U005
1-1
P006
1-2
P125
Description
-,250V,75W,250X187 2POLE,OTR
Specification
2
SA
DE61-00406B
BASE-BOTTOM
SMH7175,SECC,T0.5,W354.5,L75
1
SA
DE61-00407A
BRACKET-BOTTOM LAMP
SMH7175,SECC,T0.4,-,
1
SA
DE63-00137B
COVER-GLASS COOKTOP
SMH7175,SECC,T0.5,W9
1
SA
DE64-00911A
GLASS-COOKTOP LAMP
SMH7175,TEMP-GLASS,T2
1
SA
DE97-00363A
ASSY-MOUNTING PLATE
SMH7175,MOUNTING+WIR
1
SA
DE66-00121A
WIRE-MOUNTING
SMH7175,MSWR10,ZNC2,-,-
2
SA
1-2
P007
DE70-00378A
PLATE-MOUNTING
SMH7175,SECC ,-,T0.8,W130
2
SA
1-1
M021
DE97-00365C
ASSY-COVER MOTOR
SMH7175/SMH7178,ASSY-NO
1
SA
1-2
M023
DE31-10177E
MOTOR FAN
SMF-1850UA1,SMH7175WC,-,60HZ,-
1
SA
1-2
H018
DE31-90051A
BLADE-FAN
P.P,T,D130,-,-,-,-
1
SA
1-2
P109
DE63-00141A
COVER-MOTOR
SMH7175,PP(FB53),T2.5,-,-,-,
1
SA
1-2
M017
DE96-00400B
ASSY NOISE FILTER
SN-UF12B,250V20A,OTR10
1
SA
1-1
P034
DE97-00366D
ASSY-DUCT UPPER
SMH7178,HUMIDITY SENSOR,
1
SA
1-2
W022
DE39-30099A
LEAD WIRE-F
L140,JVM-1340BW,-,-,-,-,-
1
SA
1-2
P122
DE47-20059A
THERMOSTAT
PW-2N(8XV),125V15A,V,120/0,23
1
SA
1-2
P030
DE59-50002A
CAPACITOR-MOTOR
SH-M 10UF,220V10UF,-,DMB
1
SA
1-2
P098
DE97-00181A
ASSY-CAM LOUVER
JVM-1860,ASSEMBLY,-,-
1
SA
1-3
P178
3405-001050
SWITCH-MICRO
125V,0.1A,60GF,SPNC
1
SA
1-3
P179
3405-001051
SWITCH-MICRO
125V,0.1A,60GF,SPNO
1
SA
1-3
H032
DE31-10154C
MOTOR DRIVE
M2CK59ZT69-H,-,-,120V60HZ,-,
1
SA
1-3
W023
DE39-00253A
WIRE HARNESS-CAM
JVM-1860,-,-,-,-,-,-,-,
1
SA
1-3
P112
DE61-00118A
BRACKET-CAM PLATE
JVM-1860,SCP,T2.0,W60.
1
SA
1-3
P113
DE72-00145A
CAM-LOUVER
JVM-1860,POM(KEPITAL FE-22),-
1
SA
1-2
P097
DE97-00371B
ASSY-DUCT UPPER(SUB)
JMV8186,HUMIDITY-SE
1
SA
1-3
U003
DE47-00006A
HOLDER-LAMP
-,250V,75W,250X187 2POLE,OTR
1
SA
1-3
P039
DE67-00168A
DUCT-UPPER
SMH7175,PP,T2.0,BLK,-,-,-
1
SA
1-3
M219
DE97-00585A
ASSY-SENSOR HUMIDITY
SMH7175WE/XAA,-,HUM
1
SA
1-3
C089
DE39-40673F
WIRE HARNESS-H
SMH7175WE/XAA,-,-,-,-,-,-
1
SA
1-1
P001
DE97-00367A
ASSY-STIRRER
SMH7175,H/STIRRER+B/STIRRER
1
SA
1-2
T036
DE31-00023A
BLADE-STIRRER
SMH7175,ALP1050,-,-,PI82,T
1
SA
1-2
T037
DE61-00505A
HOLDER-STIRRER
SMH7175,SPS,-,-,-,-,-
1
SA
1-1
T017
DE97-00368A
ASSY-GUIDE ROLLER
SMH7175,SPS,G/ROLLER+R
1
SA
1-1
T030
DE75-00036A
WIRE RACK
SMH7175,SNC2,D5,-,-,-,-,-
1
SA
Remark
1-1
P015
DE97-00411A
ASSY-BKT DUCT UPPER
SMH7175BC,BKT-DUCT U
1
SNA
1-1
M067
DE97-00496A
ASSY-GRILLE
SMH7178,-,-,-
1
SA
1-2
P099
DE61-00128A
HINGE-GRILLE(R)
JVM-1860,SECC,T0.8,-,-,-
1
SA
GRILLE
1-2
P100
DE61-00129A
HINGE-GRILLE(L)
JVM-1860,SECC,T0.8,-,-,-
1
SA
GRILLE
1-2
P104
DE61-00177A
HINGE-GRILLE(M)
JVM-3660,SECC,T1.6,-,-,-
1
SA
GRILLE
1-2
M149
DE61-00527A
SPRING-LOUVER
JVM-2070,HSWR,-,-,-,-,-,-,
2
SA
1-2
P106
DE63-00244A
EARTH-GRILLE
SMV9165,STS301,T0.15,W13.5,
1
SA
1-2
M068
DE64-01294A
GRILLE
SMH7178,PC,T2.5,W75,L757,-,BLK,-
1
SA
1-2
P101
DE97-00497A
ASSY-COVER GRILLE
SMH7178,CHASSIS+BKT-C/
1
SA
- 26 -
GRILLE
7-2 Main Parts List
(S.N.A : SERVICE NOT AVAILABLE)
LEVEL
No
Code No.
1-3
P102
DE61-00150A
BRACKET-BARRIER GR
JVM-1860,SECC,T0.5,-,
1
SA
1-3
P117
DE61-00672A
BRACKET-COVER GRILLE
SMH7178,SECC,T1.2,W
1
SNA
CHASSIS-GRILLE
SMH7178,STS430 #4,T0.5,W7
1
SNA
ASSY-MAGNETRON
OM75P(10)ERHN
1
SA
1-3
P208
DE64-01296A
1-1
M035
OM75P(10)ERHN
Description
Specification
- 27 -
Q’ty
SA/SNA
Remark
GRILLE
7-3 Control & Door Parts List
(S.N.A : SERVICE NOT AVAILABLE)
LEVEL
No
Code No.
Q’ty
SA/SNA
1-1
D049
DE94-01118A
ASSY DOOR
Description
SMH7178,BLK,PREMIUM
Specification
1
SA
1-2
D060
6107-001175
SPRING-ES
HSWR,BLUING,PI0.95,D8.5,L49.4,
1
SA
1-2
D005
DE01-00127A
FILM-DOOR
JVM-1860,POLYESTER,-,L479,T0.0
1
SA
1-2
D090
DE63-00289A
EARTH-SPRING
SMH7178,HSWR,T0.4,OD5,L9.9,
2
SNA
1-2
D006
DE64-00759A
DOOR-C
SMH7175,PP,T1.5,-,-,-,BLK,-
1
SA
1-2
D011
DE64-00760A
KEY-DOOR
SMH7175,PBT,-,-,BLK,-,-
1
SA
1-2
D019
DE64-01293A
HANDLE-DOOR
SMH7178,AL,-,W28.3,L254.5,-,
1
SA
1-2
D004
DE94-00882B
ASSY DOOR-E(COATING)
SMH7175BC,BLK-COATI
1
SA
1-2
D037
DE94-01117A
ASSY DOOR-A
SMH7178,BLK,SCREEN ADHESION
1
SA
1-3
D024
DE64-01292A
SCREEN-DOOR(B)
SMH7178,TEMP-GLASS,T3.2,W
1
SA
1-3
D002
DE64-01295A
DOOR-A
SMH7178,PC,T2.5,L619,W327,-,BLK,-
1
SA
1-3
D040
DE64-01299A
CHASSIS-DOOR(U)
SMH7178,STS430 #4,T0.5,W
1
SNA
1-3
D041
DE64-01300A
CHASSIS-DOOR(L)
SMH7178,STS430 #4,T0.5,W
1
SNA
1-1
C082
DE94-01120D
ASSY CONTROL-BOX
120V/60HZ,SMH7178STE/XA
1
SA
1-2
C089
DE39-40673A
WIRE HARNESS-H
120V60HZ,OTR6 ALL MODEL,G
1
SA
1-2
D090
DE63-00289A
EARTH-SPRING
SMH7178,HSWR,T0.4,OD5,L9.9,
1
SNA
1-2
C009
DE64-00766B
WINDOW-DISPLAY
4150,SAN,T2.0,W37,L84,YEL
1
SA
1-2
C001
DE94-01119A
ASSY CONTROL-PANEL
120V/60HZ,SMH7178,BLK
1
SA
1-3
C133
DE64-01297A
CHASSIS-PANEL(U)
SMH7178,STS430 #4,T0.5,
1
SNA
1-3
C133
DE64-01298A
CHASSIS-PANEL(L)
SMH7178,STS430 #4,T0.5,
1
SNA
1-3
C005
DE64-01302A
PANEL-CONTROL
SMH7178,PC,T2.5,W138.5,L32
1
SNA
1-2
C073
DE97-00498B
ASSY-BRACKET C/PANEL
SMH7178STE/XAA,C/PA
1
SA
1-3
R066
DE61-00266A
BRACKET-PCB
MO1650WA,SECC,T0.5,-,-,-,-
1
SA
1-3
P156
DE61-00673A
BRACKET-CONTROL PANEL
SMH7178,SECC,T0.5,
1
SA
1-2
C004
DE34-00205C
SWITCH MEMBRANE
SMH7178STE/XAA,-,129.1,P
1
SA
- 28 -
Remark
7-4 Standard Parts List
(S.N.A : SERVICE NOT AVAILABLE)
Level
Code No
Description
1-2
DE60-20066A
BOLT-FLAT
1-2
DE60-20022A
BOLT-TOGGLE
1-1
DE60-30015A
NUT-FLANGE
1-3
DE60-30063A
NUT-MOUNTING
1-2
DE60-30022A
1-1
DE60-10082I
1-1
1-1
Specification
Q’ty
Remark
UNF1/4,L110,MSWR10,-,-,OTR6,-,
3
SA
MSWR,W3/16X75,-,-,-,-,-,-,-
3
SA
SA/SNA
M5,P0.8,MSWR10,FEFZY,-,-,-,-,-
4
SA
-,M6.3,S10C,ZNC,YEL,-,-,-,-
2
SA
NUT-TOGGLE
SBC1,ZPC2,WHT,-,-,-,-,-,-
3
SA
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
1
SA
ASSY HVC
DE60-10082I
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
1
SA
BASE PLATE
DE60-10082I
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
3
SA
BKT DUCT REAR
1-1
DE60-10082I
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
2
SA
BKT MOUNTING PLATE
1-1
DE60-10082I
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
2
SA
DUCT UPPER
1-1
DE60-10082I
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
2
SA
FAN MOTOR
1-1
DE60-10082I
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
4
SA
P/OUTER
1-1
DE60-10082I
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
1
SA
VENT MOTOR
1-2
DE60-10082I
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
1
SA
1-2
DE60-10082I
SCREW-A
-,-,-,-,2S-4X12,FEFZY,-,-,-,-
1
SA
1-2
DE60-10111A
SCREW-INCH MACH
-,-,-,-,MSWR,W1/4X50,-,-,-,-
1
SA
1-1
6002-000643
SCREW-TAPPING
TH,+,2S,M4,L10,ZPC(YEL),SWRCH1
1
SA
CAVITY FRONT
1-1
6002-001170
SCREW-TAPPING
FH,STAR,2,M4,L12,SIL,SWRCH18A
2
SA
B/D-LATCH
1-1
6002-001173
SCREW-TAPPING
FH,+,2S,M4,L12,ZPC(BLK),MSWR
2
SA
GRILLE
1-1
6002-001173
SCREW-TAPPING
FH,+,2S,M4,L12,ZPC(BLK),MSWR
1
SA
P/OUTER
1-1
6006-001170
SCREW-TAPPING
TH,+,WT,TC,M4,L10,ZPC(YEL),SWRCH18A,-
1
SA
P-CORD
1-1
6006-001175
SCREW-TAPPING
WS,TH,+,M4,L8,ZPC(YEL)
1
SNA
ASSY HVD
1-1
DE60-10045A
SCREW-TAPPING
-,-,FEFZY,-,PH,M3,-,L6,-,-
2
SA
MGT TCO
1-1
DE60-10051A
SCREW-TAPPING
-,-,MSWR,-,PH,M4,-,L6,-,-
1
SA
S.T MOTOR
1-1
DE60-10051A
SCREW-TAPPING
-,-,MSWR,-,PH,M4,-,L6,-,-
1
SA
TURNTABLE MOTOR
1-1
DE60-10062A
SCREW-TAPPING
-,-,FEFZB,-,TH,M4,-,L12,-,-
1
SA
BKT D/UPPER
1-1
DE60-10062A
SCREW-TAPPING
-,-,FEFZB,-,TH,M4,-,L12,-,-
1
SA
C/BOX
1-1
DE60-10067A
SCREW-TAPPING
-,-,FEFZB,2-SLOT,TH,M4,-,L8,-
1
SA
ASSY HOOD DAMPER
1-1
DE60-10067A
SCREW-TAPPING
-,-,FEFZB,2-SLOT,TH,M4,-,L8,-
5
SA
BASE BOTTOM
1-1
DE60-10067A
SCREW-TAPPING
-,-,FEFZB,2-SLOT,TH,M4,-,L8,-
8
SA
P/OUTER
1-1
DE60-10080A
SCREW-TAPPING
-,-,-,-,M5,L12,-,2S,-,-
4
SA
HVT
1-2
6002-000643
SCREW-TAPPING
TH,+,2S,M4,L10,ZPC(YEL),SWRCH1
2
SA
1-2
DE60-10051A
SCREW-TAPPING
-,-,MSWR,-,PH,M4,-,L6,-,-
1
SA
1-2
6002-000630
SCREW-TAPPING
PH,+,-,2S,M3,L8,ZPC(YEL),SWRCH18A,-
4
SNA
1-2
DE60-10045A
SCREW-TAPPING
-,-,FEFZY,-,PH,M3,-,L6,-,-
1
SA
1-2
DE60-10067A
SCREW-TAPPING
-,-,FEFZB,2-SLOT,TH,M4,-,L8,-
1
SA
1-2
6002-001004
SCREW-TAPPING
TH,+,2,M4,L30,ZPC(YEL),SWRCH18
2
SNA
1-2
DE60-10062A
SCREW-TAPPING
-,-,FEFZB,-,TH,M4,-,L12,-,-
2
SA
1-3
6002-001169
SCREW-TAPPING
PH,+,2S,M3,L25,ZPC(YEL),MSWR10
2
SA
MICRO-S/W
1-3
DE60-10051A
SCREW-TAPPING
-,-,MSWR,-,PH,M4,-,L6,-,-
2
SA
MOTOR-DRIV
1-3
6002-000630
SCREW-TAPPING
PH,+,-,2S,M3,L8,ZPC(YEL),SWRCH18A,-
2
SNA
1-2
6002-000643
SCREW-TAPPING
TH,+,2S,M4,L10,ZPC(YEL),SWRCH1
3
SA
- 29 -
MGT
N/FILTER SCREW
PCB
BT-TCO
HUMIDITY SENSOR
HINGE-GRILLE
8. P.C.B Diagrams
( This Document can not be used without Samsung’s authorization )
8-1 P.C.B Diagrams
1
LV T 1
S LV -5574U
R 11
2K
F1
R 12
20K
F2
R 01
-24V
UZ5.1B S B
ZD01
470
470
1T 4
1T 4
R 02
D02
D03
1T 4
R 14
2K
D10
1N4148M
D09
1N4148M
D08
1N4148M
D07
1N4148M
T R 01
K R C 246M
R 13
2K
+5V
D01
C 10
100nF
R Y 04
DU12D1-1P
R Y 03
DU12D1-1P
R Y 02
F T R -F 3AA024E
R Y 05
+24V
F T R -F 3AA024E
C 01
470uF
C 02
47uF
DOOR
R 03
10K
R 44
10K
+24V
-24V
P OWE R -L
P OWE R -H
MAIN
INR US H
P OWE R -L
P OWE R -H
INR US H
NIG HT
D11
1N4148M B R IG HT
R 04
2K
C 04
100nF
R 07
150
IC 02
78L05A
T R 07
K R C 246M
+5V
R 25
3.3K
3.01K -F
INT
VE E
+5V
C 06
22uF
R 05
2K
R 08
150
+5V
IC 03
7033P
R 09
150
R 28
2K
+5V
R 06
2K
R 15
2K
+5V
IC 01
T MP 87P M14F
13 P 13
12 P 16
11 P 1
10 P 12
26 3G
LV -IN2
F1
F2
1N4148M
D24
1
NP -3 22
NP -4 23
P 10
32 33
F 21 F 22
32
1 2
F 11 F 12
INT
2
9 P 11
3
8 P9
63
4
64
V As s
5
1
TE S T
14 P 4
VS S
56
16 P 3
15 P 15
25
6
17 P 5
7
9
24 1G
18 P 10
8
10
19 P 14
27 4G
25 2G
11
28 5G
X-OUT
X-IN
26
27
28
12
14
29 6G
13
15
30 7G
23
44
16
BZ
B Z-L
17
2K
2K
1N4148M
D23
18
10
11
16
15
14
13
12
C N01
12516HS -16
45
59
-24V
B Z-N
22
R 35
2K
R 36
2K
R 37
2K
R 38
2K
R 39
2K
R 40
2K
R 41
2K
R 21
R 20
R 19
1K
+5V
46
TCO
24
19
51
50
49
48
47
52
53
+5V
R 18
1K
LV -IN1
B Z-S
35
20
47K
AR 01
3
2
C N04
S MW250-03V _WHT
1
2
NP -2 21
3
4 P6
1N4148M
D22
60
4
RESET
1N4148M
D21
29
5
RESET
1N4148M
D20
NP -1 20
6
7 P2
1N4148M
D19
5 P7
7
6 P8
1N4148M
D18
61
R 34
47K
8
62
R 33
47K
1N4148M
D17
V DD
R 32
47K
9
V Aref
C 08
100nF
R 31
47K
1N4148M
D16
58
XT L1
8MHz
V kk
57
C 07
100nF
C 16
20pF
C 17
20pF
BZ
DOOR
40
33
39
34
37
I-R
M-R
36
P -R -L
T T -R
P -R -H
C B -R
42
C N-R
41
43
V M-R
30
38
V L-R
31
LV -R
LV -IN1
V H-R
Vm
LV -IN2
55
21
54
Ladder-1
Vs
Ladder-2
B Z-S
B Z-N
B Z-L
R 43
2K
+5V
T R 02
K R C 246M
RESET
R 42
2K
C 05
100uF
R 17
470
T R 05
K R C 246M
V H-R
V L-R
V M-R
Ladder-1
Vs
Vm
Ladder-2
C N-R
C B -R
T T -R
150K
180
LV -R
R 30
330 330K
C 15
100nF
R 29
ZD04
UZ5.1B S B
T R 17
K R C 246M
T R 04
K R C 246M
C 14
4.7uF
T R 16
K R C 246M
T R 03
K R C 246M
T R 15
K R C 246M
R 27
100K
B Z01
C B E 2220B A
R 16
2K
+24V
ZD02
UZ5.1B S B
P -R -L
I-R
P -R -H
M-R
T R 14
K R C 246M
IC 04
K IA75S 358F
VCC
+15V
T R 13
K R C 246M
C 11
4.7nF
D06
1N4148M
D05
1N4148M
D04
1N4148M
C 03
470uF
+15V
C 13
10nF
200K
274K -F
R 26
T R 12
K R C 246M
T R 08
K R C 246M
T R 10
K R A226-AT
C 12
4.7uF
T R 11
K R C 246M
R 24
10K
R 45
100 300
R 23
10K
ZD05
UZ5.1B S B
T R 06
K R C 246M
D25
1T 4
T R 09
K R C 246M
V E NT -H
V E NT -L
V E NT -M
NIG HT
B R IG HT
T -T AB LE
LOUV E R
R 22
470
+15V
2
1
3
DS P 1
S V M-07S S 25
ZNR 1
10D471
+24V +24V
R 10
2.2K
100nF
C 09
L1
N
3
4
PTC1
270M
D15
1T 4
R Y 06
F T R -F 3AA024E
R Y 07
F T R -F 3AA024E
D12
1N4148M
V E NT -H
MAIN
T -T AB LE
LOUV E R
D13
1N4148M
D14
1N4148M
D26
1N4148M
D27
1N4148M
V E NT -M
V E NT -L
C N05
S MW250-03V _WHT
5
2
C N02
S MW250-05V _WHT
1
C N03
S MW250-07AV _R E D
3
5
7
3
C N06
S MW250-09AV _R E D
1
9
7
5
R Y 08
F T R -F 3AA024E
R Y 01
F T R -F 3AA024E
R Y 09
F T R -F 3AA024E
R Y 10
F T R -F 3AA024E
R Y 11
F T R -F 3AA024E
D28
1N4148M
- 30 -
TCO
L1
N
ZD03
UZ5.1B S B
8-2 P.C.B Parts List
(S.N.A : SERVICE NOT AVAILABLE)
LEVEL
Code No.
Description
1-1
0204-001118
FLUX
1-2
0401-001002
1-2
1-2
1-2
1-2
Specification
Q’ty
SA/
SNA
SV-95-1F,C19H29COOH,C3H7OH,-,1
1
SNA
DIODE-SWITCHING
1N4148M,100V,200mA,DO-34,TP
23
SNA
D04~D14,D16~D24,
D26~D28
0402-001103
DIODE-RECTIFIER
1T4,400V,1A,SOD-106,TP
5
SNA
D01~D03,D15,D25
0403-000355
DIODE-ZENER
UZ5.1BSB,5-5.2V,500MW,DO-35,TP
4
SNA
ZD01,ZD03~ZD05
0504-001044
TR-DIGITAL
KRA226M,PNP,400MW,2.2K/10K,TO-92M,TP
1
SNA
TR10
0504-001178
TR-DIGITAL
KRC246M,NPN,400mW,2.2K/10Kohm,TO92M,TP
14
SNA
TR01,TR02,TR05~TR09,T
R11~TR17
Remark
1-2
1201-001125
IC-OP AMP
75S01,SOP,5P,63MIL,SINGLE,100d
1
SA
IC04
1-2
1203-001037
IC-POSI.FIXED REG.
78L05,SOT-89,3P,185MIL,PLASTIC
1
SNA
IC05
1-2
1203-001238
IC-POSI.ADJUST REG.
78L15,TO-92,3P,-,PLASTIC,14.4/
1
SNA
IC02
1-2
1203-001238
THERMISTOR-PTC
27ohm,20%,-,265V,1.5A,360mA,BK
1
SNA
PTC1
1-2
1405-000001
VARISTOR
470V,1250A,14x7.5mm,TP
1
SA
ZNR1
1-2
2001-000009
R-CARBON
20KOHM,5%,1/8W,AA,TP,1.8X3.2MM
1
SNA
R12
1-2
2001-000062
R-CARBON
470OHM,5%,1/4W,AA,TP,2.4X6.4MM
1
SNA
R22
1-2
2001-000273
R-CARBON
100KOHM,5%,1/8W,AA,TP,1.8X3.2MM
1
SNA
R27
1-2
2001-000290
R-CARBON
10KOHM,5%,1/8W,AA,TP,1.8X3.2MM
2
SNA
R03,R44
1-2
2001-000429
R-CARBON
1KOHM,5%,1/8W,AA,TP,1.8X3.2MM
2
SNA
R18,R19
1-2
2001-000446
R-CARBON
2.2KOHM,5%,1/2W,AA,TP,3.3X9MM
1
SNA
R10
1-2
2001-000577
R-CARBON
2KOHM,5%,1/8W,AA,TP,1.8X3.2MM
19
SNA
R04~R06,R11,R13~R15,R
20,R21,R28,R35~R43
1-2
2001-000780
R-CARBON
470OHM,5%,1/8W,AA,TP,1.8X3.2MM
2
SNA
R01,R02
1-2
2001-000786
R-CARBON
47KOHM,5%,1/8W,AA,TP,1.8X3.2MM
4
SNA
R31~R34
1-2
2004-000218
R-METAL
10Kohm,1%,1/8W,AA,TP,1.8x3.2mm
2
SNA
R23,R24
1-2
2004-000517
R-METAL
200Kohm,1%,1/8W,AA,TP,1.8x3.2m
1
SNA
R26
1-2
2004-001978
R-METAL
300ohm,1%,1/8W,AA,TP,1.8x3.2mm
1
SNA
R45
1-2
2004-004255
R-METAL
3.32Kohm,1%,1/8W,AA,TP,1.68x3.81mm
1
SNA
R25
1-2
2004-005091
R-METAL
249Kohm,1%,1/8W,AA,TP,1.8x3.2mm
1
SNA
R29
1-2
2004-005092
R-METAL
348Kohm,1%,1/8W,AA,TP,1.8x3.2mm
1
SNA
R30
1-1
2011-000777
R-NET
47Kohm,5%,1/8W,A,SIP,8P,TP
1
SNA
AR01
....2
2203-000192
C-CER,CHIP
100nF,+80-20%,50V,Y5V,TP,2012,
6
SNA
C04,C07~C10,C15
1-2
2203-000260
C-CER,CHIP
10nF,10%,50V,X7R,2012
1
SNA
C13
1-2
2203-000889
C-CER,CHIP
4.7nF,10%,50V,X7R,TP,2012
1
SNA
C11
1-2
2401-000244
C-AL
100uF,20%,10V,GP,TP,6.3x7,5
1
SNA
C05
1-2
2401-000911
C-AL
22uF,20%,16V,GP,TP,5x7,5
1
SNA
C06
1-2
2401-001415
C-AL
470uF,20%,35V,GP,TP,10x20,5
1
SNA
C03
1-2
2401-001573
C-AL
47uF,20%,50V,GP,TP,6.3x11,2.5
1
SNA
C02
1-2
2401-002075
C-AL
4.7uF,20%,50V,GP,TP,5x11,5
2
SNA
C12,C14
1-2
2401-002216
C-AL
2200uF,20%,35V,GP,TP,16x25,7.5
1
SNA
C01
1-2
2802-000188
RESONATOR-CERAMIC
8MHz,0.5%,TP,10.0x5.0x8.0mm
1
SNA
XTL1
1-1
3501-000256
RELAY-POWER
24VDC,1200VA,22MA,-,9MS,5MS
2
SNA
RY03,RY04
1-1
3501-001155
RELAY-MINIATURE
24VDC,200MW,3000MA,1FORMA,10MS,1
0MS
9
SA
1-1
3708-001550
CONNECTOR-FPC/FFC/PIC
16P,1.25MM,STRAIGHT,SN,ZIF,-,SINGLE
1
SNA
CN01
1-1
3711-000024
CONNECTOR-HEADER
BOX,3P,1R,2.5MM,STRAIGHT,SN,WHT
1
SNA
CN04
- 31 -
RY01,RY02,RY05~RY11
8-2 P.C.B Parts List(continued)
(S.N.A : SERVICE NOT AVAILABLE)
LEVEL
Code No.
Description
1-1
3711-000879
CONNECTOR-HEADER
1-1
3711-000999
CONNECTOR-HEADER
1-1
3711-004200
CONNECTOR-HEADER
Specification
Q’ty
SA/
SNA
BOX,3P,1R,2.5mm,STRAIGHT,SN
1
SNA
CN05
BOX,5P,1R,2.5mm,STRAIGHT,SN
1
SNA
CN02
BOX,4P/7P,1R,2.5MM,STRAIGHT,SN,RED
1
SNA
CN03
Remark
1-1
3711-004201
CONNECTOR-HEADER
BOX,6P/9P,1R,2.5MM,STRAIGHT,SN
1
SNA
CN06
1-1
DE07-10035A
VF DISPLAY
SVM-07SS10,SEA,-,-,-
1
SA
DSP1
1-2
DE09-00499A
IC MICOM
TMP87CM14F-CHUN,SMH7178,64 PIN,+5V,,-,-,-,-,QFP,TRAY,-,-,-20 ~ +85
1
SNA
IC01
1-2
DE13-20009A
IC
KA7533,DIP,-,-,-,-,-
1
SNA
IC03
1-1
DE26-20144A
TRANS L.V
SLV-5574U,120V,60HZ,AC17V/2.7V,-,-,-,-
1
SA
LVT1
1-1
DE30-20016A
BUZZER
CBE2220BA,STICK,-,-,-,-,-,-,-
1
SNA
BZ01
1-2
DE39-60001A
WIRE-SO COPPER
,PI0.6,SN,T,52MM TAPING_WIRE,
19
SNA
J01~J19
1-2
DE41-00309A
PCB-MAIN
RAS-OTR7HV,FR-1,1,-,T1.6,197*197,-,2
ARRAY,-,-
1
SNA
1-2
DE60-60012A
PIN-EYELET
ID2.1,OD2.5,L3.0,SN,BSP,T0.25,
3
SNA
1-1
DE61-90164A
HOLDER-DIGITRON
BLK,NYLON#66,-,BLK,MW4370W,,MW4370W
1
SNA
1-1
DE68-02628A
LABEL-PCB ADHESIVE
-,-,-,-,W10,L30,WHT,-,-,-
1
SNA
1-1
DE92-01674A
ASSY PCB AUTO
-,-,RAS-OTR7HV-04,120V60HZ
1
SA
- 32 -
9. Schematic Diagrams
9-1 Schematic Diagrams
( This Document can not be used without Samsung’s authorization )
- 33 -
10. Reference
10-1 Model name standard
Baoad
Classification
USA CMO
USA RV
Distinguisher
M
R
USA Junior
SJ
USA OTR
SM
EUROPE Epoxy Cavity
M
Middle
Classfication
Distinguisher
Product
Code
Full Nane
CMO (Countertop MWO)
W
MW
USA CMO(EPOXY CAVITY)
UTC (Under The
Cabinet)
U
MU
USA UTC
Browner, Grill
G
MG
USA GRILL
Convection
C
MC
USA CONVECTION
Sensor
S
MS
USA CMO SENSOR
DC MWO
D
MD
USA DC MWO
Hospital MWO
H
MH
USA Hospital MWO
Ceramic Enamel
E
ME
USA CMO(CERAMIC ENAMEL)
SOLO
M
RM
USA RV SOLO
CONVECTION
C
RC
USA RV CONVECTION
BUILT-IN
B
RB
USA RV BUILT-IN
SJ
USA Junior MWO
SOLO
H
SMH
USA OTR SOLO
CONVECTION
V
SMV
USA OTR CONVECTION
SOLO
1
M1
EUROPE SOLO(EPOXY
CAVITY)
GRILL
2
M2
EUROPE GRILL(EPOXY CAVITY)
SOLO
1
CE1
EUROPE SOLO(CERAMIC ENAMEL)
GRILL
2
CE2
EUROPE GRILL(CERAMIC ENAMEL)
EUROPE Ceramic Enamel
CE
EUROPE
Quartz GRILL
G2
G2
EUROPE Quartz GRILL
EUROPE
Power Grill
PG
PG
POWER GRILL
EUROPE Convection
CK
CK
EUROPE CONVECTION
C
C
EUROPE CONVECTION
EUROPE Fully
Built-In
F
SOLO
W
FW
EUROPE SOLO FULLY BUILT-IN
GRILL
G
FG
EUROPE GRILL FULLY BUILT-IN
CONVECTION
C
FC
EUROPE CONVECTION
FULLY BUILT-IN
- 34 -
10-2 Customer inquiry cases and countermeasures
Symptom
Cause
Countermeasures
Air is evacuated from
the oven.
• The vent of the oven is
designed to be placed
on the bottom of the
product, and air is evacuated from the oven.
In the past, the vent was placed on the back panel of
the oven. Since the oven was placed near the wall of a
kitchen, the wall behind the oven was discolored. Thus,
the vent of a new oven is placed on the bottom of the
product, and air is evacuated from the oven.
The oven works automatically whenever
the power is turned
on.
• It may happen due to
power failure or abnormal voltage.
• It may happen when
the door does not close
completely.
• Connect the power plug three seconds after disconnecting the power plug.
• Close the door completely => Press the Cancel button
=> Press the Start button.
Heating
• In many cases, it may
happen when the power
level is incorrectly set.
• It may happen when
the door does not close
completely.
• It may happen when the
oven is out of order.
• Select HIGH by rotating the Cooking Power Control
knob.
- KEEP WARM: This function is used to warm the
cooked food for a certain time period, not to heat the
food.
- MEDIUM/LOW: This function is used to cook the food
slowly.
• Close the door completely. => Press the Cancel button. => Press the Start button.
• Contact the nearest Samsung after-sales service center.
Ground
• Ground problem may
happen when the oven
is placed in a humid
area and the over is not
grounded.
• Ground is not provided
by an extended electric
outlet.
• If the oven is placed in a humid area, buy an electric
wire in a store selling electrical products. (Electric
wires for home use are also allowed) Ground the oven
through the electric wire.
• Buy an electric wire in a store selling electrical products. (Electric wires for home use are also allowed)
Ground the oven through the electric wire.
Turn table occasionally rotates in reverse
order.
• Turntable has been designed to rotate in either
direction since 1994.
• In the past, the gear of the turntable was easily worn
by turning it during cleaning. Now, the turntable of the
oven is designed to rotate in both directions to prevent
damage during cleaning. (Rotation direction is set
when the oven initially operates.)
The oven sometimes
beeps.
• The oven beeps every
minute unless the food
is in the oven after the
food is cooked completely.
• The oven occasionally
beeps during cooking.
• Open and close the door again. (Beeping sounds
indicate that the food is ready to be removed from the
oven after cooking is complete.)
- 35 -
10-2 Customer inquiry cases and countermeasures (Continued)
Symptom
Cause
Countermeasures
Strange popping
sounds are produced
while fish is cooked.
• Since fish is salty and
maintains its moisture, it is cooked while
making a series of soft
popping sounds. (The
liquid may come out of
the fish when the fish is
cooked.)
• Food with bones such as fish (e.g. mackerel) and pork
(e.g. pork chops) is cooked while making a series of
soft popping sounds. Wrap the food completely so that
food particles or spattered oils do not stick to the oven
walls or floor.
Strange smell is produced in the oven.
• It may happen when
food particles stuck to
oven walls or floor.
“
• Clean the inside of the oven. => Remove strange smell
through the Deodorant button => If the strange smell
still remains, place a piece of lemon on the turntable
and operate the oven for 5 minutes by pressing the
Deodorant button.(However, the smells produced from
the food exposed such as herbal remedies are not
removed.)
Error
• Errors are classified into • Clean the inside of the oven. => Remove strange smell
the case which is out
through the Deodorant button => If the strange smell
of order and the case
still remains, place a piece of lemon on the turntable
which is not out of order.
and operate the oven for 5 minutes by pressing the
Deodorant button. (However, the smells produced
from the food exposed such as herbal remedies are
not removed.)
Accessory
Number does not
appear on the display
screen.
• Visit the nearest Samsung Service Center or local
dealer to buy accessories. Before visiting, check the
model name printed on the lower right side of the front
panel of the oven.
It happens when the power • Since the government recommends the reduction of
saving function is actielectricity, the power saving function is performed
vated.
for number display like that power cord is unplugged
when the oven is not used. (Numbers are displayed
when another button is pressed or when the door
opens.)
- 36 -
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
© Samsung Electronics Co., Ltd. June 2005
Printed in Korea
Code No. : DE68- 03949A