SAMSUNG CE124CFKUM Service Manual

MICROWAVE OVEN

CE124CF

SERVICE

Manual

MICROWAVE OVEN

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

UHR

LEISTUNGGRILL

ZEIT/GEWICHT

AUFTAUEN

GAR-

AUTOMATIK

PLUS

HEISSLUFT MIKROWELLE

MW

+

HEISSL

MW

+

GRILL

GRILL

+

HEISSL

LÖSCHEN START

CE124CF

SCHNELLGERICHTE

1.GETRÄNKE

2.FOLIENKARTOFFEL

3.PIZZA

4.POMMES FRITES

5.HAMBURGER/FISCHSTÄBCHEN

6.REIS/NUDELN

7.POPCORN

AUFWARMEN

8.FERTIGGERICHTE

9.QUICHE/AUFLAUF

10.EINTOPF

11.SUPPE/SAUCE

12.REIS/NUDELN

GAR.AUTOMATIK

13.RIND

14.SCHWEIN

15.GEFLÜGEL

16.GEFLÜGELSTÜCKE

17.FISCH

18.GEMÜSE(FRISCH)

19.GEMÜSE (GEFROREN)

MINUS

Samsung Electronics

(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.

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING
SERVICING TOAVOID POSSIBLE EXPOSURE TO EXCESSIVE
MICROWAVE ENERGY

1. Precaution

1-1 Safety precautions ( )

Samsung Electronics 1-1

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. 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).

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 immediatly.

4. Notify the Central Service Center if the
microwave leakage exceeds 5 mW/cm

2

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.

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.

9. Inform the manufacturer of any oven found
to have emmission 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

10. Service technicians should remove their
watches while repairing an MWO.

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.

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 the
drawings 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.10.Always unplug
the unit's AC power cord from the AC
power source before attempting to
remove or reinstall any component or
assembly.

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.

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.

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.

17. When checking the continuity of the
switches 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.

1. High Voltage Warning
Do not attempt to measureany 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 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.

1-2

Pretaution

Samsung Electronics

1-2 Special Servicing Precautions (Continued)

1-3 Special High Voltage Precautions

=> : Touch chassis side first then short to the high voltage

capacitor terminal by using a screwdriver or jumper
wire.

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.

PRECAUTION

Never touch any circuit wiring with your hand nor with an
insulated tool during operation.

PRECAUTION

Servicemen should remove their watches whenever
working close to or replacing the magnetron.

2. Specifications

2-1 Table of Specifications

Samsung Electronics 2-1

MODEL CE124CF

ITEM

TIMER 99 MINUTES

POWER SOURCE 230V 50Hz, AC

POWER CONSUMPTION MAX : 3,000W

MICROWAVE : 1,600W

GRILL : 1,300W

CONVECTION : 1,400W

OUTPUT POWER 90W/900W(10 LEVEL POWER) (IEC-705 TEST PROCEDURE)

OPERATING FREQUENCY 2,450MHz

MAGNETRON OM75P(10)

COOLING METHOD COOLING FAN MOTOR

OUTSIDE DIMENSIONS 558(W) x 381(H) x 496(D)

3-1 Samsung Electronics

CONVECTION

MICROWAVE

P/LEVELGRILL

DEFROSTMW

+

CONV.

CLOCK

MW

+

GRILL

GRILL

+

CONV.

AUTO/DISH

MORE

LESS

INSTANT COOK

1.DRINKS

2.JACKET POTATO

3.PIZZA

4.OVEN CHIPS

5.BURGERS/FISH FINGERS

6.RICE/PASTA

7.POPCORN

AUTO REHEAT

8.PLATED MEAL

9.PIE/QUICHE

10.CASSEROLE

11.SOUP/SAUCE

12.RICE/PASTA(REHEAT)

AUTO COOK

13.ROAST BEEF

14.ROAST PORK

15.ROAST CHICKEN

16.CHICKEN PIECE

17.FISH

18.FRESH VEGETABLE

19.FROZEN VEGETABLE

TIMER/WEIGHT

STOP/CANCEL START

CE124CF

WINDOW DISPLAY AND INDICATOR LIGHTS
* Funtion Indicator Lights indicate which cooking

funtion is being set or used.
* Digital Display shows time of day or time left to cook.
* Power Indicator Light Indicates which power is being
set or used.

FUNCTION SELECTOR BUTTONS
* Clock set

* Microwave, Power Level select
* Defrost, Auto cook and Dish select
* More, Less(Min Plus, Min Minus)
* Convection, grill, Combination cook
* Timer/Weight set
* Stop/Cancel, Start

3. Operating Instructions

3-1 Control Panel

3-2 Features & Accessories

ROLLER RING

CONTROL PANEL

HEATER GRILL

BARBECUE BAR

HOLDER

OVEN LAMP

GLASS TRAY

OVEN DOOR

THERMIISTOR SENSOR

WINDOW DISPLAY

OPEN DOOR

UHR

LEISTUNGGRILL

ZEIT/GEWICHT

AUFTAUEN

GAR-

AUTOMATIK

PLUS

HEISSLUFT MIKROWELLE

MW

+

HEISSL

MW

+

GRILL

GRILL

+

HEISSL

LÖSCHEN START

CE124CF

SCHNELLGERICHTE

1.GETRÄNKE

2.FOLIENKARTOFFEL

3.PIZZA

4.POMMES FRITES

5.HAMBURGER/FISCHSTÄBCHEN

6.REIS/NUDELN

7.POPCORN

AUFWARMEN

8.FERTIGGERICHTE

9.QUICHE/AUFLAUF

10.EINTOPF

11.SUPPE/SAUCE

12.REIS/NUDELN

GAR.AUTOMATIK

13.RIND

14.SCHWEIN

15.GEFLÜGEL

16.GEFLÜGELSTÜCKE

17.FISCH

18.GEMÜSE(FRISCH)

19.GEMÜSE (GEFROREN)

MINUS

COUPLER ROATING BASE TURNTABLE

TRAY

METAL

RACKS

BARBECUE

BAR

HOLDER CRUSTY PLATE MULTY SPIT

4 Magnetron flange nuts at top

Pin plate

screws (1) of damper

screws

(2) of
Magnetron
thermostat

Choke Coil

4. Disassembly and Reassembly

4-1 Replacement of Fan Motor and HVCapacitor

4-2 Replacement of Damper, Magnetron

4-3 Replacement of Lamp

Samsung Electronics 4-1

1. Remove out panel.

2. Disconnect all connectors and terminals.

3. Remove a screw 1) securing the fan motor
bracket.

4. Remove two screws 2) at back plate.

5. Remove a screw 3) securing HVC bracket for
removal of HVC.

1. After removing out panel and magnetron
supporter, disconnect all the terminals and
connectors from magnetron and damper assembly.

2. Remove four screws (1) securing damper Ass'y.

3. Remove two screws (2) securing magnetron
thermostat.

4. Remove four magnetron flange nuts at top.

=> : 1) When removing the magnetron, make sure that

its antenna does not hit any adjacent parts, or it
may be damaged.

2) when replacing the magnetron, be sure to
remount the magnetron gasket in the correct
position and make sure the gasket is in good
condition.

3) Never install magnetron without metalic gasket
plate, which should be packed with each
magnetron to prevent microwave leakage.

4) Check microwave leakage after repair work is
carried out on magnetron.

1) Remove out panel.

2) Remove two screws securing lamp holder.

(Top View) screw 1)

(Rear View)

screw 2)

screw 3) of HVC bracket

screws of lamp

Thermistor Probe

Thermal Cutout Switch

4-2 Samsung Electronics

Disassembly and Reassembly

4-4 Replacement of Door Assembly

4-7 Replacement of Casing Ass'y and Convection Heater

4-6 Replacement of Fuse

Remove hex bolts securing the upper hinge and
lower hinge. Then remove the door Ass'y.

• 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 may leak from the clearance between
the door and oven.

3. Perform the microwave leakage test.

4-5 Replacement of H.V.Transformer

1. Discharge the high voltage capacitor.

2. Disconnect all the leads from the high voltage
transformer.

3. Remove the mounting bolts on the high voltage
transformer.

4. When replacing, connect the leads correctly and
firmly.

Disconnect the oven from the power source and
remove the 15A fuse in the fuse holder in noise
filter Ass'y.

1. Remove out panel and back panel.

2. Disconnect all connectors and terminals.

3. Remove air duct and support-back.

4. Remove screws 1) securing convection heater Ass'y.

5. Remove nut'2', blade fan'3', spring washer'4' and bushing'5'.

6. Remove convection assembly '11', '12' and cooling fan'10'.

7. Remove four screws '6'.

8. Remove heater cover '7' '9'. Then heater adiabatic '8' will be disassembled.

Flange Bolts of upper hinge

Bolts & a screw of lower hinge

screws 1) of convection heater

2

4

3

5

7

8

9

10

11

12

6

Samsung Electronics 4-3

Disassembly and Reassembly

4-9 Replacement of Control Circuit Board

4-8 Replacement of Drive Motor

• Be sure to ground any static electric charge in you

body and never touch the touch control circuitry.

1. Remove 3 screws securing control panel Ass'y to oven front.

2. Remove screws holding control panel bracket '7' to control panel '1'.

3. Disconnect film connector from PCBoard assembly '9'.

4. Remove 3 screws securing PCB Ass'y.

5. Pull out membrane'4', window display'5' and door button'2'.

1. Take out the glass tray, guide roller and coupler from cavity.

2. Turn the oven upside down to replace the drive motor.

3. Cut out the drive motor cover with nipper and remove it from the base plate.

4. Disconnect all the lead wires from the drive motor.

5. Remove screws 1) securing the drive motor to the cavity.

6. Take out the drive motor.

7. When replacing the drive motor, be sure to remount it in the correct position.

1.DRINKS

2.JACKET POTATO

3.PIZZA

4.OVEN CHIPS

5.BURGERS/FISH

FINGERS

6.RICE/PASTA

7.POPCORN

AUTO REHEAT

8.PLATED MEAL

9.PIE/QUICHE

10.CASSEROLE

11.SOUP/SAUCE

12.RICEPASTA(REHEAT)

AUTO COOK

13.ROAST BEEF

14.ROAST PORK

15.ROAST CHICKEN

16.CHICKEN
PIECE

17.FISH

18.FRESH VEGETABLE

19.FROZEN

VEGETABLE

INSTANT COOK

CLOCK

DEFROST

P/LEVEL

AUTOD/DISH

MORE/LESS

TIMER/WEIGHT

CANCEL

START

MICROWAVE

GRILL

CONVECTION

MW+CONV.

MW+GRILL

GRILL+CONV.

2

1

3

6

7

9

8

Cut eight points of drive motor cover.

After replacing the drive motor, insert
boss to this tab and fit with two
screws 2).

screws 1)

Lead wires

screws 2)

4-6 Replacement of Control Circuit Board

4-6-1 Removal of Control Box Assembly

4-4 Samsung Electronics

1. Be sure to disclyarge any static electricity from your body, and avoid touching the "Touch control"
clrcuitry.

2. Disconnect the connectors from the control circuit board.

3. Remove screws securing the control circuit bord.

4. Lift up the control circuit board from right side and remove the hooks holding the contol circuit board to
the box assembly.

Disassembly and Reassembly

Screws

Screws

Samsung Electronics

5. Alignment and Adjustments

5-1 High Voltage Transformer

5-2 Low Voltage Transformer

5-3 Magnetron

5-1

1. Remove connectors from the transformer terminals

and check continuity.

2. Normal resistance readings are as follows:

Secondary ..........................Approx. 66W

Filament .............................Approx. 0W

Primary...............................Approx. 1.250W

(Room temperature = 20˚C)

Continuity checks can indicate only an open

filament or a shorted magnetron. To diagnose an
open filament or shorted magnetron :

1. Isolate the magnetron from the circuit by
disconnecting its leads.

2. A continuity check across the magnetron filament
terminals should indicate one ohm or less.

3. A continuity check between each filament terminal
and magnetron case should read open.

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.

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.

L.V.T SPEC. : SLV-105E

Terminals Resistance

1~2(Input) 290Ω

3~4(Output) 4.0Ω
5~6(Output) 1.0Ω

Cooling Fins

Gasket Plate

Magnetron Antenna

Filament Terminals

Secondary Terminal

Primary
Terminals

Samsung Electronics

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

5-2

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.

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.

1. When mounting Primary switch and Interlock
Monitor switch to Latch Body, consult the figure.

NOTE : No specific adjustment during installation

of Primary switch and Monitor switch to the latch
body is necessary.

2. 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.

3. Reconnect to Monitor switch and check the
continuity of the monitor circuit and all latch
switches again by following the components test
procedures.

4. Confirm that the gap between the switch housing
and the switch actuator is no more than 0.5mm when
door is closed.

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.

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 door sensing 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.

Alignment and Adjustments

Door Open Door Closed

Primary switch ∞ 0
Monitor switch (COM-NC) 0 ∞
Monitor switch (COM-NO) ∞ 0

Door Sensing S/W

∞

0

Interlock Monitor S/W

Lever Slider A

Primary Interlock S/W

Door Sensing S/W

Lever Slider B

(Door Close Condition) (Door Open Condition)

Samsung Electronics 5-3

7. Normal temperature rise for this model is 9˚C to 11˚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 90
times the of centigrade temperature.

4.187 x 1000 x ∆T+0.88xMcx(T2-T0)

Output Power =

46.5

46.5: Heating Time (sec)

4.187 : Coefficient for Water
1000 : Water (cc)

∆T : Temperature Rise (T2-T1)

Mc : Cylindrical borosilicate glass weight
To : Room temperature.

5-8 Output Power of Magnetron

Alignment and Adjustments

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 48seconds exactly. (1.5 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;

The microwave heat distribution can be checked indirectly by measuring the water temperature rise at
certain positions in the oven:

1. Prepare five beakers made of 'Pyrex', having 100 milliliters capacity each.

2. Measure exactly 100milliliters off water load with a measuring cylinder, and pour into each beaker.

3. Measure the temperature of each water load. (Readings shall be taken to the first place of decimals.)

4. Put each beaker in place on the cooking tray as illustrated in figure below. Start heating.

5. After heating for 2 minutes, measure the water temperature in each beaker.

6. Microwave heat distribution rate can be calculated as follows:

Minimum

Temperature Rise

Heat Distribution = X 100(%)

Maximum

Temperature Rise

The result should exceed 65%.

5-9 Microwave Heat Distribution - Heat Evenness

D

D

D/4

D/4

D/4

D/4

Cooking Tray

Beaker

Samsung Electronics5-4

Alignment and Adjustments

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.

UHR

LEISTUNGGRILL

ZEIT/GEWICHT

AUFTAUEN

GAR-

AUTOMATIK

PLUS

HEISSLUFT MIKROWELLE

MW

+

HEISSL

MW

+

GRILL

GRILL

+

HEISSL

LÖSCHEN START

CE124CF

SCHNELLGERICHTE

1.GETRÄNKE

2.FOLIENKARTOFFEL

3.PIZZA

4.POMMES FRITES

5.HAMBURGER/FISCHSTÄBCHEN

6.REIS/NUDELN

7.POPCORN

AUFWARMEN

8.FERTIGGERICHTE

9.QUICHE/AUFLAUF

10.EINTOPF

11.SUPPE/SAUCE

12.REIS/NUDELN

GAR.AUTOMATIK

13.RIND

14.SCHWEIN

15.GEFLÜGEL

16.GEFLÜGELSTÜCKE

17.FISCH

18.GEMÜSE(FRISCH)

19.GEMÜSE (GEFROREN)

MINUS

5-13 Leakage Measuring Procedure

5-10 Procedure for Measurement of Microwave Energy Leakage

5-12 Note on Measurement

5-11 Check for Microwave Leakage

5-13-1 Record keeping and notification after measurement

1) After adjustment and repair of a radiarion preventing device, make a repair record for the measured
values, and keep the data.

2) If the radiation leakage is more than 4 mW/cm

2

after determining that all parts are in good condition,

functioning properly and the identical parts are replaced as listed in this manual notift that fact to ;

CENTRAL SERVICE CENTER

5-13-2 At least once a year have the microwave energy survey meter checked for accuracy by its manufacturer.

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 arnear 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 neading should be less
than 4mW/cm2.

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.

Maximum allowable leakage is 5mW/cm2.
4mW/cm2is used to allow for measurement and meter accuracy

WARNING

AVOID THE HIGH VOLTAGE COMPONENTS.

Spacer Cone

Survey Meter

Samsung Electronics

6. Troubleshooting

6-1

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. 1. Open or loose lead wire harness Check fan motor when thermal cutout is defective.
Fuse is OK. 2. Open thermal cutout (Magnetron)
No display and no operation at all. 3. Open low voltage transformer Check Ass'y PCB when LVT is defective.

4. Defective Ass'y PCB

No display and no operation at all. 1. Shorted lead wire harness Check adjustment of primary, interlock monitor,
Fuse is blown. 2. Defective primary latch switch (NOTE 1) power relay, door sensing switch.

3. Defective monitor switch (NOTE1)

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 1. Key input is not in-Sequence Refer to operation procedure.
key input (Program) 2. Open or loose connection of membrane

key pad to Ass'y PCB

3. Shorted or open membrane panel

4. Defective Ass'y PCB Replace PCB main.

1. Off-alignment of latch switches Adjust door and 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
Timer starts countdown but no cause magnetron to lower output and/or
microwave oscillation. intermittent oscillation.
(No heat while oven lamp and 3. Defective high voltage components Check high voltage component according to

fan motor turn on.) H.V.Transformer component test procedure and replace if it is

H.V.Capacitor defective.
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 Replace PCB main.

Samsung Electronics6-2

Troubleshooting

SYMPTOM CAUSE CORRECTIONS

Oven lamp and fan motor turn on 1. Misadjustment or loose wiring Adjust door and latch switches.

of primary latch switch

2. Defective primary latch switch

Oven can program but timer 1. Open or loose wiring of secondary Adjust door and interlock switches.
does not start. interlock switch

2. Off-alignment of primary interlock

3. Defective secondary interlock S/W

Microwave output is low;. 1. Decrease in power source voltage. Consult electrician.
Oven takes longer time to 2. Open or loose wiring of magnetron
cook food. filament circuit. (Intermittent oscillation))

3. Aging of magnetron

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 Defective Ass'y PCB Replace PCB main.
to the plugged in mode.

Loud buzzing noise can be heard. 1. Loose fan and fan motor Tighten screws of fan motor.

2. Loose screws on H.V.Transformer Tighten screws of H.V.Transformer.

3. Shorted H.V.Diode Replace H.V.Diode.

Turntable motor does not rotate. 1. Open or loose wiring of turntable motor. Check the wire of turntable motor

2. Defective turntable motor. Replace turntable motor.

Oven stops operation during cooking 1. Open or loose wiring of primary Adjust door and latch switches.

interlock switch

2. Operation of thermal cutout(Magnetron)

Sparks 1. Metallic ware or cooking dishes Inform the customer.

touching on the oven wall.

2. Ceramic ware trimmed with gold or Do not use any type of cookware with
silver powder also causes sparks. metallic trimming.

Uneven cooking Uneven intensity of microwave due to Wrap thinner parts of the food with

its characteristics. 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 Noise may result from the motor. Replace turntable motor.
when it starts to operate.

6-1 Electrical Malfunction(continued)

Samsung Electronics

7. Exploded Views and Parts List

7-1 Exploded Views

7-1

76

75

48

61

62

46

64

65

66

67

73

6

74

4

2

7

1

10

5

3

77

42

72

78

55

63

51

52

82

47

69

68

53

54

49

50

59

56

60

43

8

9

57

38

40

44

45

36

41

39

37

33

34

30

29

28

32

31

35

22

25

26

27

23

86

20

17

15

19

14

21

18

13

16

12

70

87

88

83

84

85

58

24

71

79

80

81

7-2 Main Parts List

7-2 Samsung Electronics

Exploded Views and Parts List

Ref. No. Parts No. Description Specification Q'ty Remarks

1 DE92-90315A ASSY-DAMPER COVER RE-1280 1
2 DE61-30100A SUPPORTER-BACK SECC,T0.6 1
3 DE92-90053A ASSY-COVER AIR RE-1200/1280/1270 1
4 DE39-40453E WIRE HARNESS-B 230V,RE-1280(SAW),AMFO 1
5 DE62-90016B ADIABATIC-L EGF-E3019-PBS,T10,W180,L180,AL 1
6 DE71-60316A COVER-ADIABATIC-L SBHG1-M,T0.5 1 COVE/L
7 DE92-90179A ASSY-BACK PANEL RE-1280 1
8 DE65-20022A BUSHING CORD IC002 1

9 DE39-20075G ASSY POWER CORD UD13A1,230V15A,L1500,BLK,CE102 1
10 DE39-40229E WIRE HARNESS-A 230V,RE-1280(SAW),AMFO 1
12 DE31-10020A MOTOR-FAN AMM90-004ATEB 1
13 2501-000234 C-OIL SCH-2121134B1,1.13F,2100VAC,54X35 1
14 DE61-50266A BRACKET-HVC SECC,T0.6 1
15 DE59-40001A DIODE-H.V HVR-1X-32B-12 1
16 DE39-30102A WIRE LEAD-B L540,2GA2 1
17 DE91-70061A ASSY-H.V.FUSE THV060T-0800-H,5KV/0/8A WH 1
18 DE61-30099A SUPPORTER-MGT SECC,T0.8 1
19 DE27-10020A COIL-MC CHOKE TC,101 1
20 OM75PH(10)ESS ASSY-MAGNETRON OM75PH(10)ESSS 1
21 DE47-20101A THERMOSTAT PW2N(160/60) 1 MGT
22 DE66-90028A LEVER-DAMPER POM-KEP,44G 1
23 DE72-20014A CAM POM(KEP,F20-02),RE-909CG 1
24 DE34-20026A SWITCH-MICRO VP331A-OD(PT2 1
25 DE70-90016A SHEET-INSK K POLYESTER,T0.5,W45,L24 1
26 DE61-50231A BRACKET-DAMPER SECC,T0.8 1
27 DE31-10052A MOTOR-SYNCHRONOUS M2LB49ZR02,DAMPER-MOTOR 1
28 DE60-60026A PIN-DAMPER MSWR3 1
29 DE67-60037A COUPLER-BARBECUE AL 1
30 DE31-10057A MOTOR-SYNCHRONOUS MULJ24ZR03,SPIT-MOTOR 1
31 DE72-40034A DAMPER-SILICON SILICONE 1
32 DE72-40037A DAMPER-PLATE SECC,T0.6 1
33 DE62-90015B ADIABATIC-R EGF-E3019-PBS,T15,W346,L282,AL 1
35 DE71-60216A COVER-DAMPER NYLON#66-2411GF,143.7G 1
34 DE71-60230D COVER-ADIABATIC-R SBHG1-M,T0.5 1
35 DE71-60216A COVER-DAMPER NYLON#66-2411GF,143.7G 1
36 DE66-40027A BODY-LATCH NULON#662411GF6,HB,NTR 1
37 3405-000175 SWITCH-MICRO 250V,15A,200gf,SPST-NO 1
38 DE61-30127A SUPPORTER-PCB DANC-6N 1
39 3405-000178 SWITCH-MICRO 250V,15A,200gf,SPST-NO 2
40 DE61-30129A SUPPORTER-PCB DASS-T9N 4
41 DE66-90062A LEVER-DOOR NYLON#66,2411GF6,HB,NTR 1
42 DE91-70100A ASSY-RESISTOR RE-1280(SAW),10W,30-J 1
43 DE26-10033A TRANS-H.V Y247STC,230V,50HZ,AC2260/3.3V 1
44 DE61-50232A BRACKET-DOOR LEVER SECC,T1.5 1
45 DE60-60026A PIN-DAMPER MSWR3 1
46 DE72-80023B SHAFT-BARBECUE RE-909CG 1
47 DE39-40117A WIRE HARNESS-C RE-909CG 1
48 DE92-90247A ASSY-COUPLER RE-1270/1280,EUROPE 1
49 DE61-50236A BRACKET-COVER MOTOR SECC,T0.8,RE-909CG 1
50 DE31-10039A MOTOR-SYNCHRONOUS MVLB51ZR11,220/240V50H 1
51 DE47-70016E HEATER-GRILL 230V,1300W,39OHM,D7.0,RE-1280, 1
52 DE61-30140A SUPPORTER-HEATER ALUMINA,10G,RE-650 1
53 DE62-90014B ADIABATIC-L EGF-E3019-PBS,T15,W351,L136,AL 1
54 DE71-60229D COVER-ADIABATIC-L SBHG1-M,T0.5 1
55 DE70-40073A PLATE-CEILING MICA-SHEET,T0.5 1
56 DE80-10049A BASE-PLATE SBHG1-R,T1.0 1
57 DE91-40091A ASSY-NOISE FILTER RE-1200,250V,15A,1200 1
58 DE26-20084A TRANS-L.V RE-1280STC,230V,50HZ,AC16/3V,R 1
59 DE61-80065A HINGE-LOWER SBC1,T3.0,DARCON 1
60 DE61-40029A FOOT DASF-330,RE-909CG 4

Samsung Electronics 7-3

7-2 Main Parts List

Ref. No. Parts No. Description Specification Q'ty Remarks

61 DE92-90019B ASSY-RACK WIRE CE124CF,HIGH,MAGENTA 1
62 DE92-90019S ASSY-WIRE RACK CE124CF,LOW 1
63 DE61-90094A HOLDER-BARBECUE PTFE,9G 1
64 DE32-10013A SENSOR-THERMISTOR PT-312-K2 1
65 4713-000168 LAMP-INCANDESCENT 230V,-,25W,ORG 1
66 DE47-40021A SOCKET-LAMP E/14(22.225) 1
67 DE61-50234A BRACKET-LAMP SECC,T0.8 1
68 DE71-60267A COVER-LAMP STS304,T0.4 1
69 DE67-40066A GLASS-PLATE TEMP-GLASS,T3.2 1
70 DE61-50282E BRACKET-HINGE U SBHG1-A,T1.2 1
71 DE61-70060A SPRING-PLATE SK-5,T0.5 1
72 DE62-90028C ADIABATIC-UPPER T6,W399,L353.8,CERAMIC,WOOL 1 C/UPP
73 DE47-20044A THERMOSTAT PW-2N,150/60,BKT23.8MM 1 GRILL
74 DE92-90100B ASSY-GUIDE AIR RE-1280/1270 1
75 DE92-90072A ASSY-BASE ROLLER RE-909CG 1
76 DE74-20045A TRAY-CERAMIC RE-909CG 1
77 DE93-90038A ASSY-B/RESISTOR FX175Z-D 1
78 DE61-50238A BRACKET-PLATE SECC.T0.6 1
79 DE64-20045A HANDLE-BARBECUE TEMPERED,SPRAY,BLK 2
80 DE74-20107A TRAY-BROILER AL,T0.8,345,345,PI345,ENAMEL,S 1
81 DE92-90009A ASSY-SPIT RACK CE124CF 1
82 DE61-30141A SUPPORTER-HEATER(B) ALUMINA,5G,RE-650 1
83 DE63-20019A GASKET-HEATER BRASS-WIRE 1
84 DE93-20013C ASSY BODY LATCH RE-1280(SAW) 1
85 DE60-60017A PIN-WIRE MSWR3,PI1.0 1
86 DE61-50165A BRACKET-HEATER MICA-SHEET,T0.5,W35,L91.5 1
87 3601-000438 FUSE-FERRULE 250V,15A,SB,CERAMIC,6.4X31.8MM 1
88 DE73-90027A FERRITE-CORE NI-ZN,T13.8,W21.0,L28.0,BNF-14 1

: Option Parts : Warning

:Electrostatically Sensitive Devices

Exploded Views and Parts List

7-4 Samsung Electronics

Exploded Views and Parts List

7-3 Exploded View & Parts List - Door Parts

Ref. No. Parts No. Description Specification Q'ty Remarks

1 DE64-40045A DOOR-A PC-LEXAN141,RP-WH-01-K,310G,RE 1
2 DE67-20029E SCREEN-DOOR(B) TEMP,GLASS,T3.2XW313XL435,VITA 1
3 DE92-50037A ASSY DOOR-E SILICON,BONDING 1
4 DE64-40103A DOOR-C PBT-1500G,158G 1
5 DE64-40124A DOOR-KEY NYLON#66-2411GF,5.1G 2
6 DE92-90138A ASSY-BRACKET SLIDER RE-909CG 1
7 DE61-70057B SPRING-KEY HSWR,PI1.2,D5.8,L47 1
8 DE92-90052A ASSY-HINGE-U SBC1,T2.0 1
9 DE73-90018A FERRITE DB-867CPE,T4.1,W7.0,L1310 1

10 DE60-60021A PIN-DOOR MSWR,ZPC3 2

6

7

4

9

8

3

2

5

10

1

7-4 Exploded View & Parts List - Control Parts

Ref. No. Parts No. Description Specification Q'ty Remarks

1 DE66-20025A BUTTON-PUSH PC-LEXAN#141,RP-WH-01-K,19G,RE 1
2 DE72-70051M CONTROL-PANEL PC(LEXAN#141),RP-WH-01-K,230G 1
3 DE67-40027H WINDOW-DISPLAY ACRYL,SMOG,40G,AMFO 1
4 DE66-20041A BUTTON-CANCEL PC-LEXAN#141,RP-WH-01-K,6G,RE 2
5 DE66-20026A BUTTON-SELECT-L PC-LEXAN#141,RP-WH-01-K,16G 1
6 DE66-20042A BUTTON-SELECT-R PC-LEXAN#141,RP-WH-01-K,10G 1
7 DE66-20080A BUTTON-CLOCK PC-LEXAN#141,RP-WH-01-K,1G,RE 1
8 DE66-20024A BUTTON-MORE PC-LEXAN#141,RP-WH-01-K,7G,RE 1

9 DE61-50072A BRACKET-PANEL SECC,T0.8,W107,L286.35 1
12 DE39-30091A WIRE LEAD-PCB(B) L60,RE-1280(SAW),AMFO 1
13 DE64-10038C KNOB-VOLUME PC(LEXAN#141),WHT,5G,CIRCLE,PR 1
14 DE61-70076A SPRING-BUTTON HSWR,PI0.6 2
15 DE34-20030A SWITCH-VOLUME 4M17736 1
16 DE93-30066M ASSY CONTROL-BOX CE124CF(SAW),AMFO 1

Exploded Views and Parts List

Samsung Electronics 7-5

5

6

3

7

11

12

15

8

9

4

13

1

14

2

7-6 Samsung Electronics

7-5 Exploded View & Parts List - Casing Parts

Ref. No. Parts No. Description Specification Q'ty Remarks

1 DE31-90020A BLADE-FAN ALSTAR,T0.6,W250,L250 1
2 DE47-70028B HEATER-CONVECTION D8,230V6.1A,1400W,RE-1280 1
3 DE72-30014A BUSH-GEAR MOTOR SWRM3,ID5,OD7,ZPC3 1
4 DE92-90212C ASSY-HEATER COVER RE-1280,NEW,SYSTEM,VI 1
5 DE61-50192A BRACKET-HEATER-B STS430,T0.8,W28.5,L65.4,RE-128 2
6 DE60-30016B NUT-FLANGE M4,MSWR10,FEFN 3 BL-FAN/HEATER
7 DE31-90019A BLADE-FAN SECC,T0.6 1
8 DE91-50031A ASSY-CONV.MOTOR AMM90-004AUEA,230V0.33A 1

9 DE47-20044A THERMOSTAT PW-2N,150/60,BKT23.8MM 1
10 DE60-40026A WASHER-PLAIN ID5.5,OD12,T1.0,SBC1 1
11 DE62-10014A INSULATION-TCO T2.0,W34,L26,YEL 1
12 DE92-90079G ASSY-CASING RE-1270/1280,230V,NEW,SYSTEM,V 1

Exploded Views and Parts List

8

7

9

11

4

5

3

1

10

6

2

7-6 Parts List - Standard Parts

Parts No. Description Specification Q'ty Remarks

DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 1 H.V.D
DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 1 N/FILT
DE60-10013A SCREW-ASSY TAP TH,2S,4,L12,MSWR3,ZPC3,FIBER 6 BASE-P
DE60-10016A SCREW-ASSY MACHINE TH,4,L10,STS43 1 SENSOR
DE60-10032A SCREW-TH TH,+,M4,L8,STS304 2 BAR-HL
DE60-10045A SCREW-TAP PH PH,M3,L6,FEFZY 2 TCO-MG
DE60-10052A SCREW-TAP PH PH,M4,L8,FEFZY 1 B/U-HI
DE60-10052A SCREW-TAP PH PH,M4,L8,FEFZY 1 FR-PAN
DE60-10052A SCREW-TAP PH PH,M4,L8,FEFZY 2 TCO-GR
DE60-10053A SCREW-TAP PH PH,M4,L10,FEFZY 2 BAR-MO
DE60-10061A SCREW-TAP TH TH,M4,L8,STS 2 G/LAMP
DE60-10061A SCREW-TAP TH TH,M4,L8,STS 2 PL-CEI
DE60-10063A SCREW-TAP TH TH,M4,L12,FEFN 1 HI-LOW
DE60-10063A SCREW-TAP TH TH,M4,L12,FEFN 4 OUT-PN
DE60-10066A SCREW-TAP TH TH,M4,L8,FEFZY,2-SLOT 4 B/GE-M
DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 1 A-C-AI
DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 AIR-GU
DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 B/HTR
DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 B/LAMP
DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 C/AD-L
DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 C/AD-R
DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 8 CASING
DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 4 DAMPER
DE60-10080A SCREW-WASHER M5,L12,2S 4 HVT
DE60-10082H SCREW-A 2S-4X12,TOOTHED 1 A-B-RE
DE60-10082H SCREW-A 2S-4X12,TOOTHED 1 A-REST
DE60-10082H SCREW-A 2S-4X12,TOOTHED 2 B-PLTE
DE60-10082H SCREW-A 2S-4X12,TOOTHED 1 B/HVC
DE60-10082H SCREW-A 2S-4X12,TOOTHED 2 B/U-HI
DE60-10082H SCREW-A 2S-4X12,TOOTHED 11 BACK-P
DE60-10082H SCREW-A 2S-4X12,TOOTHED 2 BD-LAT
DE60-10082H SCREW-A 2S-4X12,TOOTHED 3 CON-BX
DE60-10082H SCREW-A 2S-4X12,TOOTHED 1 MO-FAN
DE60-10082H SCREW-A 2S-4X12,TOOTHED 5 OUT-PN
DE60-10082H SCREW-A 2S-4X12,TOOTHED 2 SUP-MG
DE60-10082H SCREW-A 2S-4X12,TOOTHED 1 W-H-A
DE60-20014A BOLT-FLANGE M5,L10,MSWR3,FEFZY 2 LOW-HI
DE60-20014A BOLT-FLANGE M5,L10,MSWR3,FEFZY 2 UPP-HI
DE60-30015A NUT-FLANGE M5,P0.8,MSWR10,FEFZY 4 MGT
DE60-30016A NUT-FLANGE M4,MSWR10 2 BR-HAN
DE60-30016A NUT-FLANGE M4,MSWR10 2 GRIL-H
DE60-30016A NUT-FLANGE M4,MSWR10 1 SENSOR
DE60-10045A SCREW-TAP PH PH,M3,L6,FEFZY 2 ­DE60-10066A SCREW-TAP TH TH,M4,L8,FEFZY,2-SLOT 3 ­DE60-10122A SCREW-TAP TH TAP,TH,2-4X8,FE,FN 2 ­DE60-10047A SCREW-TAP PH PH,M3,L16,FEFZY 2 ­DE60-10052A SCREW-TAP PH PH,M4,L8,FEFZY 2 ­DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 3 ­DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 1 P/EART
DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 ­DE60-10072A SCREW-TAP TH TH,M4,L16,FEFZY,2-SLOT 4 FOOT
DE60-10082H SCREW-A 2S-4X12,TOOTHED 2 COV/B
DE60-10088A SCREW-TAP PH PH,M3,L8,FEFZY,PLAIN 14 -

Exploded Views and Parts List

Samsung Electronics 7-7

8. P.C.B Diagrams

8-1 P.C.B Diagrams

Samsung Electronics

8-1

MICOM

V.F.DISPLAY

SVM-4MS-13

100K

-20V

F1 F2

R29 3.9K-J

100K 100K

KA2657

12V

12V

5V

12V(A)

D08

1N4001

MAIN

RELAY

F1

F2

R01 470-J

R02 470-J

ZD01 1W 5.1V

-20V

D01 1N4001

C02

470uF

D02 1N4001

-20V

C05

0.1uF

C06

0.1uF

D04 1N4001

5V

G3 37

G2 36

G1 35

G0 34

B0 45

B1 46

B2 47

B3 48

B4 49

B5 50

B6 51

B7 52

H7 32

H6 31

H5 30

H4 29

H3 28

H2 27

H1 26

H0 25

A4 8

A5 9

A6 10

A7 11

15 INT

64 VCC

3 VREF

12 RESET

2 VASS

1 VSS

63 OSC IN

62 OSC OUT

41 G7

14 E1

23 C6

24 C7

16 E3

13 E0

5 A1

4 A0

6 A2

7 A3

17 C0

18 C1

19 C2

20 C3

21 C4

22 C5

IC 1

C18 0.1uF

+

C01

470uF

IC2

1234568

16

15

14

13

12

11

9

+

+

C07

0.1uF

+

R08 10K-J

Q04

R1005

R03 470-J

ZD02

0.5W 13V

D03

1N4148

C03

1000uF

Q01

D882Y

12V

VTG-REG

7805

C04

100uF

5V

ZD03

0.5W3.9V

R04

1K-J

R05

1K-J

R06

5.1K-J

Q02

C815

Q03

C815

R07

10K-J

+

C11

10uF

12V

12V(A)

Q09

A539

12V

12V

BUZZER

Q07 R2005

R12 10K-J R11 3.9K-J

Q08

R1005

D05

1N4001

+

D06 1N4001

R10

2K-J

Q06

R1005

R09 1K-J

Q05

R1005

C09 27pF

C08 27pF

D07

1N4001

Q10

C815

POWER

RELAY

R13 3.9K-J

R14

10K-J

12V(A)

R16

10K-J

R15

3.9K-J

Q11

C815

5V

+

C15

1uF

5V

ENCODER

SWITCH

R25 1K-J

R26 1K-J

R27 10K-J

R28 10K-J

DOOR S/W

CON03

THERMISTOR

C12

0.1uF

R23 2K-J

R38 1M-J

R37 1M-J

R24 1K-F

R22 5K-F

Q12 A539

R21 10K-J

R18 3.9K-J

R17 3.9K-J

R19 100K-F

R20 3.9K-J

INRUSH RELAY

GRILL RELAY

FAN RELAY

DAMPER RELAY

CONV.M RELAY

CONV.H RELAY

335354555657585960

TIME

COOK

COMBI 2

(M+C)

MIN+

MIN-

START OPTION OPTION

-20V

G1G2G3G4ponmlkjihgfedcb

a

R30 3.9K-J

R31 3.9K-J

R32 3.9K-J

8

7

10

9

GRILL

CONVEC-

TION

COMBI1

(M+G)

AUTO

COOK

AUTO

DEFROST

COMBI 3

(G+C)

POWER

LEVEL

CLOCK

CANCEL

OPTION OPTION

OPTION OPTION

OPTION OPTION

1N4148

D10

1N4148

D11

1N4148

D12

1N4148

D13

1N4148

D14

1N4148

D15

1 2 3 4 5 6

R33

47K-J

R34

47K-J

R35

47K-J

R36

47K-J

P.C.B.-SUB

C14

332

C15

332

C16

332

C17

332

MICOM OPTION

CON01

1

2

3

6

4

5

1 tone

2 tones

4 tones

5

6

3

2

1

(B)

(A)

(A)

Waveform of (A)

0V

-5V DC

Waveform of (B)

0V

-5V DC

0V

Waveform of (A)

VCC (-5V )

Waveform of (B)

VCC (-5V)

ZD4

Turn off

Power OffPower On

1. Beep tone

2. Stage change and

half time in Auto Weight

Defrost tone

3. Error and Finish Tone

0.1sec

0.6sec 0.4sec

0.6sec 0.4sec

0V

-5V

Pin 5

0VV1V1

Pin 4

-3V

T

CH1gnd

CH2 gnd

CH1 5V A 200ms 2.21 V VERT

CH2 5V 5V

CH1

CH2

CH2 MAX - 5.16V

CH1 5V A 200ms 2.21 V VERT

CH2 2V -354.00ms

CH1gnd

CH2 gnd

CH2 MAX - 5.16V

0

-2

-4

-5V

-6

65V420

4

(B)

C10 10uF

No. Parts No. Description Specification Q'ty Remarks

P 1 0502-000303 TR-POWER KSD882,NPN,1W,TO-126,TP,160-32 1 Q01
P 2 3406-001031 SWITCH-ROTARY 10V,1mA,DP24T,18.3mm 1 ECD1
P 3 3501-000265 RELAY-POWER 12V,-,16A,-,15mS,15mS 2 CONV-H,CONV-M
P 3 3501-000265 RELAY-POWER 12V,-,16A,-,15mS,15mS 2 GRILL,INRUSH
P 3 3501-000265 RELAY-POWER 12V,-,16A,-,15mS,15mS 2 MAIN,POWER
P 4 3501-000334 RELAY-REED 12V,1250VA,10A,-,10mS,5mS 1 RELAY
P 5 3711-000315 CONNECTOR-HEADER 1WALL,7P,1R,3.96mm,STRAIGHT,SN 1 CON04
P 6 3711-000607 CONNECTOR-HEADER BOX,11P,1R,2.50mm,ANGLE,SN 1 CON06
P 7 3711-000612 CONNECTOR-HEADER BOX,11P,1R,2.5mm,STRAIGHT,SN 1 CON02
P 8 3711-001343 CONNECTOR-HEADER NOWALL,1P,1R,3.4mm,STRAIGHT,AG 1 GND
P 9 DE07-10052A V.F.DISPLAY SVM-4MS13S,MWO,RE-1280 1 VFD
P10 DE09-30158A IC-MCU TMS73C91-C69416,DIP,RE-1280 1 MICOM
P11 DE13-20016A IC-VOLT REGU KA7805A,TO-220AB,1A,0/125C 1 IC04
P12 DE13-20017A IC-DRIVE KID65003AP,DIP,16P,STICK,TR-AR 1 IC02
P13 DE30-20016A BUZZER CBE2220BA,STICK 1 BUZZER
P14 DE61-90034D HOLDER-DIGITRON PP(JI350),BLK 1 ­P15 0401-001002 DIODE-SWITCHING 1N4148M,100V,200mA,DO-34,TP 7 D03,D09,D10,D11~D14
P16 0402-001103 DIODE-RECTIFIER 1T4,400V,1A,TS-1,TP 7 D01,D02,D04,D05~D08
P17 0403-000150 DIODE-ZENER 1N4743A,13V,5%,1W,DO-41,TP 1 ZD02
P18 0403-000525 DIODE-ZENER 1N4733A,5.1V,5%,1W,DO-41,TP 1 ZD01
P19 0501-000283 TR-SMALL SIGNAL KSA539,PNP,400mW,TO-92,TP,120- 2 Q09,Q10
P20 0501-000388 TR-SMALL SIGNAL KSC815,NPN,400mW,TO-92,BK,120- 2 Q04,Q05
P21 0504-001045 TR-DIGITAL KRC119M,NPN,400MW,4.7K/10K,TO-92M,TP 4 Q02,Q03,Q06,Q08
P22 0504-001046 TR-DIGITAL KRA119M,PNP,400MW,4.7K/10K,TO-92M,TP 1 Q07
P23 2001-000042 R-CARBON 1KOHM,5%,1/4W,AA,TP,2.4X6.4MM 5 R04,R05,R09,R27,R28
P24 2001-000062 R-CARBON 470OHM,5%,1/4W,AA,TP,2.4X6.4MM 3 R01,R02,R03
P25 2001-000065 R-CARBON 10KOHM,5%,1/4W,AA,TP,2.4X6.4MM 5 R06,R07,R08,R12,R14
P25 2001-000065 R-CARBON 10KOHM,5%,1/4W,AA,TP,2.4X6.4MM 2 R16,R21
P26 2001-000076 R-CARBON 47KOHM,5%,1/4W,AA,TP,2.4X6.4MM 4 R33,R34,R35,R36
P27 2001-000432 R-CARBON 1MOHM,5%,1/4W,AA,TP,2.4X6.4MM 2 R24,R25
P28 2001-000575 R-CARBON 2KOHM,5%,1/4W,AA,TP,2.4X6.4MM 2 R10,R23
P29 2001-000611 R-CARBON 3.9KOHM,5%,1/4W,AA,TP,2.4X6.4MM 5 R11,R13,R15,R17,R18
P29 2001-000611 R-CARBON 3.9KOHM,5%,1/4W,AA,TP,2.4X6.4MM 5 R20,R29,R30,R31,R32
P30 2004-000193 R-METAL 100Kohm,1%,1/4W,AA,TP,2.4x6.4m 1 R19
P31 2004-000432 R-METAL 1Kohm,1%,1/4W,AA,TP,2.4x6.4mm 1 R26
P32 2004-001118 R-METAL 5Kohm,1%,1/4W,AA,TP,2.4x6.4mm 1 R22
P33 2201-000442 C-CERAMIC,DISC 3.3nF,10%,50V,X7R,-,-,08x5.0 4 C14,C15,C16,C17
P34 2201-000817 C-CERAMIC,DISC 22pF,79.8,50V,Y5V,TP,4x4,5 2 C08,C09
P35 2202-000780 C-CERAMIC,MLC-AXIAL 100nF,+80-20%,50V,Y5V,TP,3.5x1 5 C05,C06,C07,C12,C19
P36 2401-000030 C-AL 22uF,20%,25V,GP,TP,5x11,5 1 C18
P37 2401-000159 C-AL 1000uF,20%,25V,GP,-,13x25x7.5m 1 C03
P38 2401-000244 C-AL 100uF,20%,10V,GP,TP,6.3x7,5 1 C04
P39 2401-000466 C-AL 10uF,20%,35V,GP,TP,5x7,5 2 C10,C11
P40 2401-000598 C-AL 1uF,20%,50V,GP,TP,4x7,5 1 C13
P41 2401-001415 C-AL 470uF,20%,35V,GP,TP,10x20,5 2 C01,C02
P42 2802-000143 RESONATOR-CERAMIC 4.19MHz,0.5%,TP,10.0x5.0x7.5mm 1 XTAL
P43 3404-001022 SWITCH-TACT 15V,20mA,130°æ40gf,6x6x5mm,SPS 14 SW01~SW14
P44 3711-000881 CONNECTOR-HEADER BOX,3P,1R,2.5mm,STRAIGHT,SN 2 CON05,CON07
P45 3711-000940 CONNECTOR-HEADER BOX,4P,1R,2.5mm,STRAIGHT,SN 1 CON03
P46 3711-000999 CONNECTOR-HEADER BOX,5P,1R,2.5mm,STRAIGHT,SN 1 CON01
P47 DE13-20009A IC KA7533,DIP 1 IC03
P48 DE39-40113A WIRE HARNESS-F 110/220V,60HZ,MX200TCC,130MMX3 1 ­P49 DE39-60001A WIRE-SO COPPER PI0.6,SN,T,52MM,TAPING_WIRE 35 J01~J35
P50 DE41-10108A P.C.B-MAIN-SUB FR-1,T1.6,W197,L327,RE-1280 1 PCB
P51 DE92-90093D ASSY-HEAT SINK JVM-190K,A-TYPE 1 -

8-2 P.C.B Parts List

P.C.B Diagrams

Samsung Electronics 8-2

9. Schematic Diagram & Wiring Diagram

9-1 Schematic Diagram

* Switches and relays status according to each condition

9-1

L

N

GLE

(BLU)

(BLK)

(BLU)

(ORG)

(ORG) (BLU)

(ORG)

(WHT)

(RED)

(BLU)

(ORG)

(BLK)

MONITOR

FUSE

LVT

FAN
MOTOR
RELAY

(RED)

FAN
MOTOR

FM DM

DAMPER
MOTOR

(RED)

(BLU,BLK)

GRILL
T.C.O.

(RED)

GRILL

HEATER

(BLU,RED)

GRILL
RELAY

L

(BRN)

LAMP

(BLK)

(ORG)

SURGE
RESISTOR

(10W 30ohm)

TM

0.15uF
CAP.

MONITOR
SWITCH

(ORG)

MAIN RELAY

(BLK)

CONNECTOR "B"

(WHT)

(BLK)

CONV.
MOTOR
RELAY

CONV.
HEATER
RELAY

(BRN, YEL)

(BRN)

SM CM

SPIT

MOTOR

(BLU)

CONV.
MOTOR

T/T
MOTOR

CONV.
HEATER

(RED)

CONV.
T.C.O.

(GRY,BLU)

(WHT,BLU)

(RED)

INRUSH

RELAY

RESISTOR

(10W
15ohm)

(YEL)

(YEL)

(ORG)

(WHT)

H.V.TRANS

H.V.FUSE

(0.8A)

(RED)

(RED)

H.V.C.

(1.13uF)

H.V.D

F

MAGNETRON

CONDITION OF OVEN
DOOR OPENED
PLUG IN

CONNECTOR "A"

CONNECTOR "C"

PRIMARY SWITCH

DAMPER RY.

(GRY)

(BLU)

(NC)

(NC)

(COM)

(NO)

(WHT)

DAMPER

SWITCH

(NO)

0.15uF
CAP.

(Y/G)

1.3mH

FUSE
15A

NOISE FILTER

C3

2200pF

C1

0.1uF

500K
OHM

C2

2200pF

(BLK)

MGT
T.C.O.
S/W

SEC. S/W RY.

F

(RED)

Samsung Electronics

Condition DOOR DOOR MICRO- GRILL CONVEC MWO+ MWO+ GRILL+

ITEM OPEN CLOSE WAVE -TION GRILL CONV. CONV.

PRI.S/W OPEN CLOSE CLOSE CLOSE CLOSE CLOSE CLOSE CLOSE

MON.S/W CLOSE OPEN OPEN OPEN OPEN OPEN OPEN OPEN

MAIN RY ON OFF ON ON ON ON ON ON

SEC.S/W RY OFF OFF ON OFF OFF ON ON OFF

GRILL RY OFF OFF OFF ON OFF ON OFF ON

CONV. HEA.RY OFF OFF OFF OFF ON OFF ON ON

FAN.MTR.RY OFF OFF ON ON ON ON ON ON

DAMPER RY OFF OFF OFF ON ON ON ON ON

CONV.MTR.RY OFF OFF OFF ON ON ON ON ON

9-2 Wiring Diagram

Samsung Electronics 9-2

OVEN THERMISTOR

DOOR S/W

(BUL)

(ORG)

(WHT)

(BLK)

(YEL)

(BRN)

GRILL RY.

INRUSH RY.

.

SEC. S/W RY.

MAIN RY.

CONV. HEA.RY.

CON. MOTOR RY.

CON 4

CON 1

(GRY)

(BLU)
(ORG)
(RED)

(YEL)

(RED)

DAMPER
MOTOR
RELAY

FAN MOTOR
RELAY

L.V.TRANS
SECONDARY

VOLTAGE

ORG BLK

GRYORG

SYMBOL COLOR
Y/G YELLOW//GREEN

BLK BLACK
WHT WHITE
BLU BLUE
BRN BROWN
GRY GRAY
YEL YELLOW
ORG ORANGE
RED RED

: GROUND

: PARTS LINE

: PCB PATTERN LINE

(BLU,RED) :W-H-A=BLU , W-H-B=RED

ORG
RED

RED
BLU

PRIMARY SWITCH

DOOR SENSING SWITCH

MONITOR SWITCH

ORG

ORG

ORG

BRN

RED

RED

RED

WHT

RED

FA F

HIGH VOLTAGE
TRANSFORMER

H.V.FUSE

HIGH VOLTAGE CAPACITOR

HIGH VOLTAGE
DIODE

TO CHASSIS

MAGNETRON

SYMBOL COLOR
ORG ORANGE
WHT WHITE
BLK BLACK
RED RED
YEL YELLOW

Schematic Diagram & Wiring Diagram