SERVICEMICROWAVE OVEN CONTENTS

MICROWAVE OVEN

1. Precaution

2. Specifications

3. Operating Instructions

4. Disassembly and Reassembly

5. Alignment and Adjustments

6. Trouble shooting

7. Exploded Views and Parts List

8. PCB Diagrams

9. Schematic Diagrams

Manual

SMH7159WCSMH7159BCSMH7159CC

SEA

PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE 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 activatingthe magnetron or other microwavesource, 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 powerfor any service test or inspection withinthe microwave generatingcompartments, check the magnetron,wave guide or transmission line, andcavity for proper alignment, integrity,and connections.

(d) Any defective or misadjustedcomponents in the interlock, monitor,door seal, and microwave generationand transmission systems shall berepaired, replaced, or adjusted byprocedures described in this manualbefore the oven is released to theowner.

(e) A Microwave leakage check to verifycompliance with the Federalperformance standard should beperformed on each oven prior torelease to the owner.

- 1 -

1. PrecautionFollow 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 potentiallylethal high voltages and currents.

1-1 Safety precautions ( )1. All repairs should be done in accordance

with the procedures described in thismanual. This product complies withFederal Performance Standard 21 CFRSubchapter J(DHHS).

2. Microwave emission check should be performedto 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 andcontact the manufacturer and the center fordevices and radiological health immediately.

4. Notify the Central Service Center if themicrowave leakage exceeds 5 mW/cm2.

5. Check all grounds.

6. Do not power the MWO from a "2-prong"AC cord. Be sure that all of the built-inprotective devices are replaced. Restore anymissing protective shields.

7. When reinstalling the chassis and itsassemblies, be sure to restore all protectivedevices, including: nonmetallic controlknobs and compartment covers.

8. Make sure that there are no cabinet openingsthrough which people --particularlychildren --might insert objects and contactdangerous voltages. Examples: Lamp hole,ventilation slots.

9. Inform the manufacturer of any oven foundto have emission in excess of 5 mW/cm2,Make repairs to bring the unit intocompliance at no cost to owner and try todetermine cause.Instruct owner not to use oven until it hasbeen brought into compliance.

Samsung Electronics America, Inc.Headquarters 105 Challenger RoadRidge field Pack, New Jersey 07660-0511

10. Service technicians should remove theirwatches while repairing an MWO.

11. To avoid any possible radiation hazard,replace parts in accordance with the wiringdiagram. Also, use only the exactreplacements for the following parts:Primary and secondary interlock switches,interlock monitor switch.

12. If the fuse is blown by the Interlock MonitorSwitch: Replace all of the following at thesame time: Primary, door sensing switchand power relay, as well as the InterlockMonitor Switch. The correct adjustment ofthese switches is described elsewhere inthis manual. Make sure that the fuse has thecorrect rating for the particular model beingrepaired.

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 theInterlock switches, described above.Never alter or add to the mechanical orelectrical design of the MWO. Any designchanges or additions will void themanufacturer's warranty. Always unplugthe unit's AC power cord from the ACpower source before attempting toremove or reinstall any component orassembly.

14. Never defeat any of the B+ voltageinterlocks. Do not apply AC power to theunit (or any of its assemblies) unless allsolid-state heat sinks are correctly installed.

15. Some semiconductor ("solid state") devicesare easily damaged by static electricity.Such components are calledElectrostatically Sensitive Devices (ESDs).Examples include integrated circuits andfield -effect transistors.

Immediately before handling anysemiconductor components or assemblies,drain the electrostatic charge from yourbody by touching a known earth ground.

- 2 -

1-2 Special Servicing Precautions (Continued)

16. Always connect a test instrument's groundlead to the instrument chassis ground beforeconnecting the positive lead; always removethe instrument's ground lead last.

17. When checking the continuity of the witchesor transformer, always make sure that thepower is OFF, and one of the lead wires isdisconnected.

18. Components that are critical for safety areindicated in the circuit diagram byshading, or .

1-3 Special High Voltage Precautions

1. High Voltage Warning !Do not attempt to measure any of the highvoltages --this includes the filament voltageof the magnetron. High voltage is presentduring any cook cycle.

Before touching any components or wiring,always unplug the oven and discharge thehigh voltage capacitor (See Figure 1-1)

2. The high-voltage capacitor remains chargedabout 30 seconds after disconnection. Shortthe negative terminal of the high-voltagecapacitor to the oven chassis. (Use ascrewdriver.)

3. High voltage is maintained within specifiedlimits by close-tolerance, safety-relatedcomponents and adjustments. If the highvoltage exceeds the specified limits, checkeach of the special components.

PRECAUTIONThere exists HIGH VOLTAGE ELECTRICITYwith high current capabilities in the circuits of theHIGH VOLTAGE TRANSFORMER secondaryand filament terminals. It is extremely dangerousto work on or near these circuits with the ovenenergized.DO NOT measure the voltage in the high voltagecircuit including filament voltage of magnetron.

PRECAUTIONNever touch any circuit wiring with your handnor with insulated tool during operation.

PRECAUTIONServicemen should remove their watcheswhenever working close to or replacing themagnetron.

Fig. 1-1 Discharging High Voltage Capacitor

19. Use replacement components that have thesame ratings, especially for flame resistanceand dielectric strength specifications. Areplacement part that does not have thesame safety characteristics as the originalmight create shock, fire or other hazards.

High Voltage Capacitor

- 3 -

2. Specifications2-1 Table of Specifications

TIMER

POWER SOURCE

POWER CONSUMPTION

OUTPUT POWER

OPERATING FREQUENCY

MAGNETRON

COOLING METHOD

OUTSIDE DIMENSIONS

NET WEIGHT

SHIPPING WEIGHT

99 MINUTES 99 SECONDS

120V 60Hz, AC

MICROWAVE : 1,580W

FROM 100 TO 1000W(10 LEVEL POWER)

(IEC-705 TEST PROCEDURE)

2,450MHz

OM75PH(10)ESS

COOLING FAN MOTOR

297/8"(W) x 167/8"(H) x 151/16"(D) mm

69.5 lbs

76 lbs

- 4 -

3. Operating Instructions3-1 Control Panel

3-2 Features & External ViewsDoor

Door Latches

Handle

Ventilation Holes Oven Light Safety Interlock Holes

Control Panel

Auto Side Hood

Intake HolesGlass Tray Guide Roller

382.5mm759mm

429m

m

- 5 -

INSTALLATION

The Microwave Oven is supported by a specialbracket assembly (mounting system) suppliedwith the oven. The bracket assembly must bemounted to the wall with toggle bolts throughthe wall, and a lag screw into a wall stud.After the bracket assembly is installed, the unitcan be slid over the two rails of the bracketassembly. Two bolts are run down throughthe cabinet bottom and into the oven case topull the oven up against the cabinet bottom.NOTE : For easier removal and personal safety

it is recommended that two peopleremove this product.

CAUTION!The mounting surface must be capable ofsupporting the cabinet load, in addition to the64 pound product, plus additional loads of upto 50 pounds or a total weight of 114 pounds.This product cannot be installed to cabinetarrangements such as an island or peninsula.It must be mounted to both a top cabinet andwall.

VENT BLOWERThe vent or exhaust blower is located at the topof the oven. It is shipped for vertical exhaust butcan be changed to rear exhaust or recirculating(See installation instrustions on how to changeand/or blower section on how to remove).

COOKTOP LIGHTSTwo 40-watt screw base incandescent bulbs arelocated on the bottom between the four greasefilters. The bulbs are user replaceable by removingone screw and lowering access cover. The bulbscould be difficult to remove when replaced for thefirst time. a silicone glue is used to secure themduring shipping.

OVEN LIGHTA 40-watt screw base incandescent bulb is locatedin 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 bulbis then accessible by removing a metal cover (1 screw).

Mounting Plate

- 6 -

REUSABLE GREASE FILTERSThe metal filter trap grease released by foodson the cooktop. They also prevent flames fromfoods on the cooktop from damaging the insideof the microwave.

For this reason, the filters must ALWAYS be inplace when the hood the vent fan is used. Thegrease filter should be cleaned once a month,or as needed.See the owner's manual packed with the microwave.

REMOVING CHARCOAL FILTERTo remove the charcoal filter, disconnect powerat the main fuse or circuit breaker panel or pullthe plug. Remove the top grille by removing the2 screws that hold it in place.

Slide the filter towards the filter towards thefront of the oven and remove it.

AUTOMATIC FANAn automatic fan feature protects the microwavefrom too much heat rising from the cooktop belowit. If you have turned the fan on you may findthat you cannot turn it. The fan will automaticallyturn off when the internal parts are cool. If maystay on for 30 minutes or more after the cooktopand microwave controls are turned off.

GRILLE REMOVALThe top full-width grille is removable for service tosome components, such as : oven light, cavityT.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 wallmounting plate and fastened to cabinet by (3) topcabinet bolts.

CAUTION : Oven weights 64.0 lbs. Requires 2people for removal.

1. Disconnect power cord. Top vented models-disconnect duct and remove damper assembly.

2. Remove (3) top cabinet bolts.3. Pull unit forward slowly providing adequate

support to prevent dropping unit during removalof last top cabinet bolts.

Screws

Remove 2 grille screws to remove the grill

- 7 -

4. Disassembly and ReassemblyMAGNETRON, MOTOR ASSEMBLY, VENT BLOWER AND HIGH VOLTAGE TRANSFORMEROven must be removed from wall.

REMOVING OVEN FROM WALL (2 PEOPLE REQUIRED)Oven is hooked on metal tabs at bottom of wall mounting plate and to cabinet by (3) top cabinet bolts.

4-1 Replacement of High Voltage Transformer and Fan Motor Assembly.Disconnect oven power.Remove Grille & Control Box Assembly.

1. Discharge the high voltage capacitor.2. Disconnect all the leads.3. Remove (2) screws from the fan motor

assembly.4. Remove (3) screws from the duct-side.5. Remove the duct-side.6. Take out the fan motor.7. Remove (4) Screws from the H.V.Trans.8. Take out the H.V.Trans.

4-2 Replacement of MagnetronRemove 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.2. Remove nuts (4) securing the magnetron to the

wave guide.3. Take out the magnetron very carefully.

NOTE1: When removing the magnetron, make surethat it antenna does not hit any adjacentparts, or it may be damaged.

NOTE2: When replacing the magnetron, be sure toremount the magnetron gasket in the correctposition and make sure the gasket is in goodcondition.

CAUTION !During replacement, be certain R.F. anode gasket isin place around anode stub.PERFORM MICROWAVE LEAKAGE TEST

MGT NUTS (4)

SCREW

SCREW

XMER SCREWS(4 EACH SIDE)

(DUCT SIDE)

SCREW(SIDE)

SCREW(BACK)

- 8 -

4-3 Replacement of Door Assembly4-3-1 Removal of Door "C"

Open the door and remove the door bypulling up from hinge holes.

4-3-2 Removal of 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 be0.5mm or less.

4-3-3 Removal of Key Door & Spring

Remove pin hinge from Door "E".Detach spring from Door "E" and key door.

Door "E"

Door "A"

Door "C"

- 9 -

4-3-4 Reassembly Test

1. When mounting the door to the oven, be sure to adjust the door parallel to the bottom line of the ovenface 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 doorassembly 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 FuseThe 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.3. When 20A fuse blows out by the operation

of interlock monitor switch failure, replacethe primary interlock switch, secondary interlockswitch, door sensing switch, interlock monitorswitch and power relay.

4. When the above four switches operate properly,check if any other part such as the control circuitboard, blower motor or high voltage transformeris defective.

4-5 Replacement of Drive Motor1. Disconnect power and remove base hood

screws(4).2. Remove bottom plate and disconnect the

turntable motor drive.3. Remove turntable motor screws(2) and pull the

turntable motor out.4. When replacing the drive motor, be sure to remount

it in the correct position with the coupler.5. Connect all the leads to the drive motor.6. Screw the drive motor cover to the base hood with

a screwdriver.

DRIVE MOTOR

After replacement of the defective component parts of the door, reassemble it andfollow the instructions below for proper installation and adjustment so as toprevent an excessive microwave leakage.

FUSE & FUSE HOLDER

- 10 -

4-6 Replacement of stirrer motor1. 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(2) and pull the

stirrer motor.

4-7 Removal of stirrerThe stirrer is motor driver and located on the upper side of the cavity. The oven uses a top feed wave guide.The stirrer is located in the wave guide and the motor is located on the 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.

STIRRER MOTOR

COVER STIRRER

CLIP

COVER STIRRER

STIRRER ASSEMBLY

- 11 -

4-8 Replacement of Control Circuit Board4-8-1 Removal of Control Box

1. Disconnect power and remove grille.

2. Be sure to ground any static electric charge inyour body and never touch the control circuit.

3. Disconnect the connectors from the controlcircuit board.

4. Remove a screw securing the control boxassembly.

4-8-2 Removal of P.C.B Assembly

1. Pull the lever end of the plastic fastener andremove the Flexible Printed Circuit(FPC) ofmembrane panel.

2. Remove screws 5 securing the control circuitboard.

3. Lift up the control circuit board from the Ass'ycontrol box.

4. When reconnecting the FPC connector, makesure that the holes on the connector are properlyengaged with the hooks on the Plastic Fastener.

4-8-3 Removal of Window Display & Membrane Panel

1. Window display should not be disassembled asits mounting tabs will be broken. If repair workis difficult, replace with Ass'y control panel.

2. The membrane key board is attached to theescutcheon base with double faced adhesivetape. Therefore, applying hot air such as using ofhair dryer is recommended for smootherremoval.

3. When installing new membrane key board, makesure that the surface of escutcheon base iscleaned sufficiently so that any problems(shorted contacts or uneven surface) can beavoided.

Screw

Control Box

ScrewScrew

Membrane Panel

Window Display

FPCconnector

Screw

ScrewScrew

- 12 -

5. Alignment and Adjustments

5-1 High Voltage Transformer1. Remove connectors from the transformer terminals

and check continuity.2. Normal resistance readings are as follows:

(Room temperature = 20C)

5-2 Low Voltage Transformer1. 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.

5-3 Magnetron

1. Continuity checks can indicate only an openfilament or a shorted magnetron. To diagnose anopen filament or shorted magnetron.

2. Isolate the magnetron from the circuit bydisconnecting its leads.

3. A continuity check across the magnetron filamentterminals should indicate one ohm or less.

4. A continuity check between each filament terminaland magnetron case should read open.

PRECAUTION1. 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.

SHV-7778UC1

SecondaryFilamentPrimary

79 10%Shows Continuity0.43 10%

TerminalsResistance

SLV-1350N(P)

1~2(Input)4~5(Output 2.7V)6~7(Output 7.0V)7~8(Output 19.0V)

127.7 1.8 2.0 4.8

- 13 -

5-4 High Voltage Capacitor1. 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 9M.3. A shorted capacitor will show continuous continuity.4. An open capacitor will show constant 9M.5. Resistance between each terminal and chassis should read infinite.

5-5 High Voltage Diode1. 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 tocheck the front-to back resistance of the diode (otherwise an infinite resistance may be read in bothdirections). The resistance of a normal diode will be infinite in one direction and several hundred K in theother direction.

5-6 Main Relay and Power Control Relay1. 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

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

2. No specific adjustment during installation ofPrimary switch and Monitor switch to the latchbody is necessary.

3. Completely tighten the screws holding the LatchBody to the oven assembly.Check for play in the door by pulling the doorassembly. Make sure that the latch keys movesmoothly after adjustment is completed.

4. Reconnect to Monitor switch and check thecontinuity of the monitor circuit and all latchswitches again by following the components testprocedures.

5. Confirm that the gap between the switchhousing and the switch actuator is no more than0.5mm when door is closed.

6. Interlock Switch Replacement - Whenreplacing faulty switches, be sure switch mountingtabs are not bent, broken or otherwise deficient intheir ability to secure the switches in place.

PrecautionFor continued protection against radiation hazard, replace parts in accordance with the wiring diagram and be sure touse the correct part number for the following switches: Primary and secondary interlock switches, and the interlockmonitor switch (replace all together). Then follow the adjustment procedures below. After repair and adjustment, besure to check the continuity of all interlock switches and the interlock monitor switch.

Door Sensing S/W

Body latch

Interlock Monitor S/W

Primary Interlock S/W

Door Open Door Closed

Primary Interlock switchMonitor switch(COM-NC)Door Sensing S/W(Secondary Interlock S/W)

0

0

0

- 14 -

5-8 VENT EXHAUST BLOWER MOTOR

THIS COMPONENT REQUIRE REMOVAL OFMICROWAVE OVEN FROM INSTALLATION FORSERVICING.

The blower is a two speed (HI-LO) capacitor runblower assembly located on top of the micro-wave oven. The blower is operated by lowvoltage relays located on the smart board.

The blower motor has 3 winding which can betested for continuity from the front by removingthe top grille and opening the control panel.

RUN CAPACITORThe run capacitor is located behind the topgrille above the control area. The capacitor isused for more torque and electrical phasing.Without the capacitor the blower might run butwould be much slower.

TO TEST THE CAPACITOR1. 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 veapproximately 75 ohms of resistance. This testallows you to read across all three windings atthe same time.

TO REMOVE VENT BLOWER1. 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.

DAMPER ASM

BLOWER ASM

BLOWER & DAMPERASM MTG SCREWS

- 15 -

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, on floor of control area.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 locatedon the top side of the oven cavity beside exhaustduct with a temperature rating of 212OF(100OC)and is non-resetable.The cutout is tightly held to the top of the ovencavity by a spring clip.NOTE : If cutout cannot be removed from clip

oven will have to be removed frominstallation and outer case removed.

5-9-2 Hood Thermal Cutout

This cutout will protect the touch control fromexcessive heat by turning the vent fan on at lowspeed. If the surface units of the range are usedfor long periods of time heat will build up andcould damage the microwave control. In orderto prevent this a thermal cutout is installed on theduct behind the control. This cutout will close(158OF/70OC - vent fan energized)and open(104OF/40OC - vent fan de-energized) dependingon 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 functionsis during an overheat condition. It will benormally open when checked with an ohmmeter.

STIRRER MOTOR

OVEN THERMAL CUTOUT

BOTTOM THERMAL CUTOUT

HOOD THERMAL CUTOUT

- 16 -

5-9-3 Bottom Thermal CutoutTHIS COMPONENT REQUIRE REMOVAL OFMICROWAVE OVEN FROM INSTALLATION FORSERVICING.

During a fire on the stove the heat could be intense

enough to close the Hood Thermal Cutout and forcethe fan to run. While at moderate high temperature wedo want it to run, however during a fire it is advantage-ous to NOT have the vent fan running. So if a fire wereto start on the stove top the Bottom Thermal Cutoutwould open at 212OF(100OC) and remove all power tothe 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.

5-9-4 Magnetron Thermal Cutout

The magnetron thermal cutout is located above theleads to the magnetrons. It is designed to preventdamage to the magnetron if an overheated conditiondevelops in the tube to cooling fan failure, obstructedair ducts, dirty or blocked air intake.Under normal operation, the magnetron thermal cutoutremains closed. However, when abnormally hightemperatures are reached within the magnetron, themagnetron thermal cutout will open at 320OF(160OC)causing the oven to shut down. After the temperaturedrops to 140OF(60OC) it will reset and cooking will beable to resume.

To Remove Magnetron Thermal Cutout :1. See 'Removing Magnetron'.

HOOD THERMAL CUTOUT

BOTTOM THERMAL CUTOUT

MAGNETRON THERMAL CUTOUT

MAGNETRON

- 17 -

5-10 SENSORThe Sensor Cooking Function uses a special gassensor which detects both humidity(steam) andhydrocarbons(food odors) during the cookingprocess. Before conducting either of the sensortests below, ensure the unit is plugged into a willoutlet for at least 5 minutes. If already pluggedin, proceed. The sensor is a plug-in devicelocated in the vent area at the top left handcorner of the cavity behind the grille.

To Service :1. Disconnect power and remove grille.2. Separate retainer from receptacle and

unplug 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 - Normal2) 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 :Auto 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(30).

CAUTION : DO NOT ATTEMPT TO CHECK SENSOR TERMINALS (White and Orange leads). CAN DAMAGE SENSOR.

VENT MOTOR

GAS SENSOR

- 18 -

5-11 Output Power of Magnetron

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 columnNOTE: 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", 101C).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 44 seconds exactly. (3 seconds included as a holding time of magnetronoscillation.)

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+ 0.55 x Mc x (T2-T1) 44 : Heating Time (sec)41 (3 seconds included as a holding time

of magnetron oscillation.)4.187 : Coefficient for Water1000 : Water (cc)T : Temperature Rise (T1-T2)To : Room TemperatureMc : Cylindrical borosilicate glass weight

7. Normal temperature rise for this model is 9.9C to 10.3C 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.

CAUTIONMICROWAVE RADIATION

PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVEGENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY.

- 19 -

5-12 Procedure for Measurement of Microwave Energy Leakage1) Pour 27515cc of 205C(689F) water in a beaker

which is graduated to 600cc, and place the beaker inthe center of the oven.

2) Start to operate the oven and measure the leakage byusing 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 probeperpendicular to the cabinet door. Place the spacercone of the probe on the door and/or cabinet doorseam and move along the seam, the door viewingwindow and the exhaust openings moving theprobe in a clockwise direction at a rate of 1 inch/sec. If the leakage testing of the cabinet door seam istaken near a corner of the door, keep the probe perpendicular to the areas making sure that the probe endat the base of the cone does not get closer than 5cm to any metal. If it gets closer than 5cm, erroneousreadings may result.

5) Measured leakage must be less than 4mW/cm2, after repair or adjustment.

5-13 Check for Microwave Leakage1. Remove the outer panel.2. Pour 27515cc of 205C(689F) water in a beaker

which is graduated to 600cc, and place the beaker inthe 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, thesurface of the air guide and the surface of the waveguide as shown in the following photo.( but avoid thehigh voltage components.) The reading should be less than 4mW/cm2 .

5-14 Note on Measurement1) 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 Procedure5-15-1 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 4 mW/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 ;

SAMSUNG ELECTRONICS AMERICA, INC.SERVICE DIVISION400 VALLEY ROAD, SUITE 201MT. ARLINGTON, NEW JERSEY 078561-800-SAMSUNG (1-800-726-7864)

5-15-2 At least once a year have the microwave energy survey meter checked for accuracy by itsmanufacturer.

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

- 20 -

6. Troubleshooting

6-1 Electrical Malfunction

PRECAUTION1. 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 THEPOWER SOURCE ON. TO DO OTHERWISE MAY RESULT IN A FALSE READING OR DAMAGETO YOUR METER.

5. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCESTATIC DISCHARGE MAY DAMAGE IT.ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE ANY STATIC CHARGEBUILT UP.

SYMPTOM CAUSE CORRECTIONS

Oven is dead.Fuse is OK.No display and no operation at all .

1. Open or loose lead wire harness2. Open thermal cutout (Magnetron)3. Open low voltage transformer4. Defective Ass'y PCB

Check fan motor when thermalcutout is defective.Check Ass'y PCB when L.V.T isdefective.

No display and no operation at all.Fuse is blown.

1. Shorted lead wire harness2. Defective primary latch switch

(NOTE 1)3. Defective monitor switch (NOTE1)4. Shorted H.V.Capacitor5. Shorted H.V.Transformer (NOTE2)

Check adjustment of primary,interlock monitor,power relay, door sensingswitch.

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 hascontinuity, replace power relay also.

NOTE 2: When H.V.Transformer is replaced, check diode andmagnetron also.

Oven does not acceptkey input (Program)

1. Key input is not in-Sequence2. Open or loose connection of

membrane key pad to Ass'y PCB3. Shorted or open membrane panel4. Defective Ass'y PCB

Refer to operation procedure.

Replace PCB main.

Timer starts countdown but nomicrowave oscillation.(No heat while oven lamp and fanmotor turn on.)

1. Off-alignment of latch switches2. Open or loose connection of high

voltage circuit especiallymagnetron filament circuit

NOTE: Large contact resistance willbring lower magnetronfilament voltage and causemagnetron to lower outputand/or intermittent oscillation.

3. Defective high voltagecomponents, H.V.Transformer, H.V.Capacitor, H.V.Diode, Magnetron

4. Open or loose wiring of power relay5. Defective primary latch switch6. Defective power relay or Ass'y PCB

Adjust door and latch switches.

Check high voltage componentaccording to component testprocedure and replace if it isdefective.

Replace PCB main.

- 21 -

6-1 Electrical Malfunction(continued)

SYMPTOM CAUSE CORRECTIONSOven lamp and fan motor turn on 1. Misadjustment or loose wiring

of primary latch switch2. Defective primary latch switch

Adjust door and latch switches.

Oven can program but timerdoes not start.

1. Open or loose wiring ofsecondary interlock switch

2. Off-alignment of primaryinterlock

3. Defective secondary interlock S/W

Adjust door and interlock switches.

Microwave output is low :Oven takes longer time tocook food.

1. Decrease in power sourcevoltage.

2. Open or loose wiring ofmagnetron 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 tothe plugged in mode.

Defective Ass'y PCB Replace PCB main.

Loud buzzing noise can be heard. 1. Loose fan and fan motor2. Loose screws on

H.V.Transformer3. Shorted H.V.Diode

Tighten screws of fan motor.Tighten screws ofH.V.Transformer.Replace H.V.Diode.

Turntable and stirrer motor does notrotate.

1. Open or loose wiring ofturntable and stirrer motor.

2. Defective turntable and stirrermotor.

Replace turntable motor.Replace stirrer motor.

Oven stops operation duringcooking

1. Open or loose wiring of primaryinterlock switch

2. Operation of thermalcutout(Magnetron)

Adjust door and latch switches.

Sparks 1. Metallic ware or cooking dishestouching on the oven wall.

2. Ceramic ware trimmed withgold or silver powder alsocauses sparks.

Inform the customer.Do not use any type of cookwarewithmetallic trimming.

Uneven cooking Uneven intensity of microwave dueto its characteristics.

Wrap thinner parts of the food withaluminum foil.Use plastic wrap or cover with alid.Stir once or twice while cookingfoods such as soup, cocoa, ormilk.

Noise from the turntable motorwhen it starts to operate.

Noise may result from the motor. Replace turntable motor.

- 22 -

7. Exploded Views and Parts List7-1 Exploded Views

A B

P123

M048

M038

M168M040

B018

P058M093

B006B001

B002B013

M039

M041

W003

M019

M049

M034P093

P180

P181

C081 M059

M059

M068

M087

P001

M069

P059

M029

M035

M015M020

M001

P032

P004

P006

M024P002

P012

M050M036

M030P037

P016

M061

P003

P024

P025

P036P039

P030P031

T017

U001

H040

H041

H039

U008

U005

U004

U002U003

U012H025

H033

H027

H032

T001

M060M032

W003

H030

T033

H039

H042

H038H036

H031

H035

W002

- 23 -

7-2 Main Parts List

No. Code No. Description Specification Q'ty Remark

B001 3405-001034 SWITCH-MICRO 125/250VAC,16A,200GF,SPST-N 2

B002 3405-001033 SWITCH-MICRO 125/250VAC,16A,200GF,SPST-N 1

B006 DE61-00249A BODY-LATCH SSOTR,PBT(VB5050)/PP(FH44N),T 1

B013 DE66-90106B LEVER-SWITCH LOWER PBT,T2.0,-,-,2.0g,OTR 1

B018 DE96-00154A ASSY BODY LATCH SSOTR6/7,- 1

C081 DE66-20095B BUTTON-LOCK -,-,OTR5,-,-,TB53) 1

H025 DE62-00045A INSULATION-FILM SMH7155WC,INSULATION,T0. 2 S/W

H027 DE66-00150A GEAR-MAIN SMH7155WC,PA(NYLON#66),-,-,-,- 1

H030 DE97-00453B ASSY-COVER FILTER REAR SMH7159WC,GRY COA 2

H031 DE97-00454B ASSY-COVER FILTER FRONT SMH7159WC,GRY CO 2

H032 DE31-00030A MOTOR DRIVE MSEDC10Q21,SLIDE-OTR,-,60Hz, 1 BASE-BOTTOM

H033 3405-001072 SWITCH-MICRO 125/250V,16A,120gf,- 2 BKT-SW

H035 DE61-00596C HOLDER-MAGNET SMH7159WC,-,T0.6,-,-,GRY/C 4 top-plt

H035 DE61-00596C HOLDER-MAGNET SMH7159WC,-,T0.6,-,-,GRY/C 4

H036 DE61-00614A MAGNET-FILTER SMH7159BA,MAGNET,T2.0,D15, 4

H038 DE64-01042B DECORATION-FRONT SMH7159WC,PC,-,-,-,-,WH 1

H039 DE97-00442A ASSY-SLIDE RAIL SMH7159BA,T1.6*W27,L250* 1 b/base

H039 DE97-00442A ASSY-SLIDE RAIL SMH7159BA,T1.6*W27,L250* 2

H040 DE97-00446C ASSY-FRAME(L) SMH7159WC,GRY COATING,-,- 1

H041 DE97-00447C ASSY-FRAME(R) SMH7159WC,GRY COAT,-,- 1

H042 DE97-00463B ASSY-TOP PLATE(SUB) SMH7159WC,WHT COAT 1

M001 DE64-01040B PANEL-OUTER SMH7159WC,SECC,T0.5+0.2,WHT 1

M015 DE39-10102A ASSY POWER CORD AP-30,DR-4,SJT3/14,1310M 1

M019 3601-001198 FUSE-CARTRIDGE 250V,20A,SLOW-BLOW,CERAMI 1

M020 DE92-90552C ASSY-MOTOR FAN JVM-1650/1660,-,-,- 1

M024 DE31-10178E MOTOR VENTILATION SMV-260UA-N,-,-,120V60 1

M029 DE47-20007A THERMOSTAT PW-2N(160/60)187Z,250V7.5A,16 1 MGT

M030 DE47-20196A THERMOSTAT NT-101NA(8XV)P,100/0,250V/7.5 1 CAVITY

M032 DE47-20196B THERMOSTAT SMH7159,NT-101NA,250V/125,15A 1 FLAME-BASE

M034 DE67-60012A COUPLER SPS,-,12G,-,-,- 1

M035 OM75P(10)ESS ASSY-MAGNETRON OM75P(10)ESS 1

M036 4713-001013 LAMP-INCANDESCENT 130V,-,40W,ORG,E17/20, 1 DUCT-U

M038 DE26-10136A TRANS H.V SHV-7778UC1,120V,2265V/3.25V,6 1

M039 2501-001011 C-OIL 910nF,2100V,BK,54x35x75mm,20mm 1

M040 DE61-50120A BRACKET-HVC -,SECC,T0.5,W62,L72,-,- 1

M041 DE91-70063A ASSY-HVD V2M6,PI9.0,0.05MT,-,- 1

M048 DE80-10121C BASE-PLATE SMH7155BC,SGCC,T0.8,-,-,-,- 1

M049 DE31-10172A MOTOR SYNCHRONOUS M2HJ24Z709,ST-16F,21V, 1 T/T

M050 DE31-10173A MOTOR SYNCHRONOUS M2HJ29A709,ST-16F,21V, 1 S/T

M059 DE61-00375A HOLDER-RACK OTR-1.5CUFT,PP,-,-,-,-,- 4

M060 DE92-90505D ASSY-HARD WARE OTR6/OTR7/OTR8,SPONGE DEL 1

M061 DE63-30016A FILTER-CHAROCAL JX81A, 1

M068 DE64-00325B GRILLE SSOTR,GOOD-DESIGN,PC LEXAN141,T2. 1

- 24 -

7-2 Main Parts ListNo. Code No. Description Specification Q'ty Remark

M069 DE65-00004A CLIP-GRILLE STS,JVM-1860,T0.6,-, 2

M087 DE71-60121A COVER-STIRRER -,PP,T2.0,W7,L198,-,85G,- 1

M093 3602-001025 FUSE-HOLDER 300V,30A,20mohm 1

M168 DE61-00607A GUIDE-AIR MOTOR SMH7159WA,PP(TB53),T1.5, 1 BASE-SUB

P001 DE97-00178B ASSY-STIRRER OTR7,OTR8 B/STIRRER+OTR8 H/ 1

P002 DE61-50545A BRACKET-V/T MOTOR -,SECC,TO.8,W120,L315, 1

P003 DE61-50542A BRACKET-FILTER -,SECC,T0.6,W70,L144,-,- 1

P004 DE61-50507A BRACKET-POWER CORD -,SECC,T0.4,W40,L56,O 1

P006 DE97-00258A ASSY-MOUNTING PLATE JVM-1440,MODULARITY, 1

P012 DE92-90242A ASSY-HOOD DAMPER JVM-250BL,OTR4,-,-,-,- 1

P016 DE61-50469A BRACKET-DUCT UPPER -,SECC,T0.4,W206,L272 1

P024 DE32-60013A SENSOR GAS ST-MWO,-,-,-,-,-,- 1

P025 DE61-90111A HOLDER-SENSOR -,POM(DURACON-M90-02),-,-, 1

P030 DE59-50002A CAPACITOR-MOTOR SH-M 10UF,220V10UF,-,DMB 1

P031 DE72-50084A DUCT-SIDE -,SECC,T0.5,W256,L316,-,- 1

P032 DE92-90508A ASSY-HOLDER NUT OTR6,-,-,-,-,- 1 PN-OUT

P032 DE92-90508A ASSY-HOLDER NUT OTR6,-,-,-,-,- 2

P036 DE39-40678A WIRE HARNESS-S 120V60HZ,JVM1450,60,GE,-, 1

P037 DE47-00006A HOLDER-LAMP -,250V,75W,250X187 2POLE,OTR 1

P039 DE72-50098A DUCT-UPPER -,PP-G430,-,-,-,-,- 1

P058 DE61-50540A BRACKET-AIR GUIDE-A -,SECC,T0.6,W233,L11 1

P059 DE71-60384A COVER-FRONT -,SECC,T0.8,W90,L220,-,OTR6, 1

P093 DE61-00027A BRACKET-GRILLE JVM1630,SECC,T0.5,W60,L17 1 GRILLE

P123 DE47-20034A THERMOSTAT 40/70,M5,-,-,-,-,-,- 1 VENT-BASE

P180 DE61-00591A BRACKET-SUPPORT HOOK(L) SMH7155WC,SECC,T 1

P181 DE61-00592A BRACKET-SUPPORT HOOK(R) SMH7155WC,SECC,T 1

T001 DE74-20016A TRAY-COOKING GLASS,T5.0,M551T,-,- 1

T017 DE92-90495A ASSY-GUIDE ROLLER OTR6-ALL,T/T+S/T,PI-15 1

T033 DE97-00438A ASSY-WIRE RACK SMH6150WC,W/RACK+S/RACK,A 1

U001 DE97-00444C ASSY-BASE BOTTOM SMH7159WC,GRY COAT,-,- 1

U002 4713-001013 LAMP-INCANDESCENT 130V,-,40W,ORG,E17/20, 2

U003 DE47-00006A HOLDER-LAMP -,250V,75W,250X187 2POLE,OTR 2

U004 DE61-00319A BRACKET-BOTTOM LAMP OTR-9,SECC,T0.4,-,-, 2

U005 DE67-40063A GLASS-COOKTOP LAMP -,GLASS,T3.2,W59,L159 2

U008 DE63-30011A FILTER-AIR -,AL, 1

U008 DE63-00231A FILTER-AIR SMH7159,AL,T4,W131,L277,-,- 1

U012 DE63-00100C COVER-COOKTOP LAMP OTR-9,SECC,T0.4,-,-,- 2

W002 DE96-00302A ASSY-WIRE HARNESS A SMH7159BC/XAA,SLIDE 1

W003 DE39-40674A WIRE HARNESS-B 120V60HZ,JVM1420,30,40,50 1

W003 DE96-00303A ASSY WIRE HARNESS-B SMH7159BC/XAA/SLIDE 1

- 25 -

No. Code No. Description Specification Q'ty Remark

D002 DE64-00328E DOOR-A SMH7150WC,PC,-,-,-,-,WHT,- 1

D004 DE94-00586B ASSY DOOR-E SSOTR7,COATING,- 1

D005 DE01-00091A FILM-DOOR -,POLYESTER,-,L458,T0.015,W198 1

D006 DE64-00337A DOOR-C MO1650WA,PP,T2.0,-,-,-,BLK,- 1

D007 DE61-00151A SPRING-KEY JVM-1860,HSWR,PI0.95,-,OD8.5, 2

D011 DE64-00157A DOOR-KEY JVM-1860,POM(KEPITAL F20-02),-, 2

D017 DE60-60008A PIN-HINGE PI4,L17,MSWR10,M301TBC,-,-,-,- 2

D020 DE97-00250B ASSY-HANDLE SSOTR,GOOD-DESIGN,WHT,-,- 1

D024 DE64-00444B SCREEN-DOOR(B) SMH7150BC,TEMP-GLASS,T3.2 1

D049 DE94-00595H ASSY DOOR SMH7150WC,WHT,- 1

D054 DE94-00603A ASSY DOOR-E(SUB) SSOTR7,BLK COATING+FILM 1

7-3 Door Parts List

D006

D005D054

D004

D007

D011

D017

D024

D002

D020

ASSY DOOR - D049

- 26 -

No. Code No. Description Specification Q'ty Remark

C001 DE94-00587B ASSY CONTROL-PANEL -,SSOTR6,WHT,- 1

C003 RA-SLOTR-01 ASSY PCB PARTS SMH7159WC,120V60HZ 1 SENSOR

C004 DE34-00183B SWITCH MEMBRANE SMH7159WC/XAA,SEA,150.9* 1

C005 DE64-00331B CONTROL-PANEL SSOTR,GOOD-DESIGN,PC LEXAN 1

C009 DE64-00416A WINDOW-DISPLAY SSOTR,GOOD-DESIGN,SAN,T2. 1

C073 DE97-00255A ASSY-BRACKET C/PANEL MO1650WA/MO1450WA,- 1

C082 DE94-00807M ASSY CONTROL-BOX 120V60Hz,SMH7159WC/XAA, 1

7-4 Control Parts List

C004

C009

C001

C005

C073

C003

ASSY CONTROL BOX- C082

- 27 -

Code No. Description Specification Q'ty Remark6002-001170 SCREW-TAPPING FH,STAR,2,M4,L12,SIL,SWRCH18A 2 B/D-LATCH6002-001174 SCREW-TAPPING FH,+,2S,M4,L12,NI PLT,MSWR 2 GRILLEDE60-10012A SCREW-TAP TITE -,SWR10,M4,L10,TH,+,-,3,ZPC2,- 1 P-CORDDE60-10045A SCREW-TAP PH -,-,FEFZY,-,PH,M3,-,L6,-,- 2 MGTDE60-10051A SCREW-TAP PH -,-,MSWR,-,PH,M4,-,L6,-,- 2 S/T-MODE60-10052A SCREW-TAP PH -,-,FEFZY,-,PH,M4,-,L8,-,- 1 BKT-HIDE60-10052A SCREW-TAP PH -,-,FEFZY,-,PH,M4,-,L8,-,- 2 T/T-MODE60-10063A SCREW-TAP TH -,-,FEFN,-,TH,M4,-,L12,-,- 1 BKT-P/CORDDE60-10063A SCREW-TAP TH -,-,FEFN,-,TH,M4,-,L12,-,- 1 C/BOXDE60-10063A SCREW-TAP TH -,-,FEFN,-,TH,M4,-,L12,-,- 1 HOODDE60-10063A SCREW-TAP TH -,-,FEFN,-,TH,M4,-,L12,-,- 2 PN-OUTDE60-10067A SCREW-TAP TH -,-,FEFZB,2-SLOT,TH,M4,-,L8,-,- 1 B-DUCTDE60-10067A SCREW-TAP TH -,-,FEFZB,2-SLOT,TH,M4,-,L8,-,- 2 DUCT-UDE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 2 BASE-PDE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 3 DUCT-SDE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 2 DUCT-UDE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 2 FAN-MODE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 1 FRONTDE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 1 GU-AIRDE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 2 MOUNTDE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 5 PN-OUTDE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 1 VENT-MDE60-10080A SCREW-WASHER -,-,-,-,M5,L12,-,2S,-,- 4 HVTDE60-10082H SCREW-A -,-,-,-,2S-4X12,TOOTHED,-,-,-,- 2 BASE-PDE60-10082H SCREW-A -,-,-,-,2S-4X12,TOOTHED,-,-,-,- 1 PN-OUTDE60-10122A SCREW-TAP TH -,-,FE,FN,TAP,TH,-,2-4X8,-,- 7 BOTTOMDE60-10122A SCREW-TAP TH -,-,FE,FN,TAP,TH,-,2-4X8,-,- 4 PN-OUTDE60-30015A NUT-FLANGE M5,P0.8,MSWR10,FEFZY,-,-,-,-,- 4 MGTDE60-10045A SCREW-TAP PH -,-,FEFZY,-,PH,M3,-,L6,-,- 1 TCODE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 1 CA-MOT6002-001004 SCREW-TAPPING TH,+,2,M4,L30,ZPC(YEL),SWRCH18 2DE60-10052A SCREW-TAP PH -,-,FEFZY,-,PH,M4,-,L8,-,- 1DE60-10082H SCREW-A -,-,-,-,2S-4X12,TOOTHED,-,-,-,- 1 BKT-HVCDE60-10082H SCREW-A -,-,-,-,2S-4X12,TOOTHED,-,-,-,- 1 DIODEDE60-10053A SCREW-TAP PH -,-,FEFZY,-,PH,M4,-,L10,-,- 2 DOOR-ADE60-10053A SCREW-TAP PH -,-,FEFZY,-,PH,M4,-,L10,-,- 2 HANDLEDE60-10088A SCREW-TAP PH -,-,FEFZY,PLAIN,PH,M3,-,L8,-,- 5 ASSY-PCBDE60-10045A SCREW-TAP PH -,-,FEFZY,-,PH,M3,-,L6,-,- 1 B/T-TCODE60-10122A SCREW-TAP TH -,-,FE,FN,TAP,TH,-,2-4X8,-,- 1DE60-10069A SCREW-TAP TH -,-,FRFZY,-,TH,M4,-,L10,-,- 1 BKT-GRILLE

7-5 Standard Parts List

- 28 -

8-1 P.C.B Diagrams ( This Document can not be used without Samsung's authorization )8. P.C.B Diagrams

ON/OFF

BACK

CUSTOM 2

(TIMED)

(TIMED) POP CORN

(TIMED)

ON/OFF

OPTION

LIGHT

AUTO/TIMED DEFROST

OPTION

1

2

INRUSH

3

POWER

4 TEMP COOK

LEVEL POWER

ON/OFF

3

RENINDER

POP CORN BEVERAGE

LOW

5

1&2 TIME COOK

MAIN

AM/PM

REHEAT (TIMED)

FRONT

VENT HIGH/LO/OFF

FAN

MESSAGE

COOK (TIMED)

8

REHEAT START

OPTION

GROUND MEATS

SNACKS

FISH

OPTION

HELP

9

TIMER ON/OFF CLOCK

6 SURFACE

ADD 30SEC

CHICKEN PIECES

CLEAR

ROAST

V/MOTOR

HI

4

POTATOES

AUTO NITE

DELAYED START

VENT FAN

0

T/TABLE SOUND LEVEL VENT

ON/OFF

T/TABLE

LAMP

V/MOTOR

7

1

SLIDE

BEVERAGE

1 VEGGIESES CUSTOM

2

LOW LAMP

FILLETS

V/MOTOR ON/OFF

HI

RY7 FTR-F3AA024E

+24V

+5V

DGND

MM4148 D09

100K R49

1

3

5

MM4148 D06

FTR-F3AA024E RY2

SMW250-05AV_RED CN1

RY5

TR2 KRC246

DGND

FTR-F3AA024E

10K

R37 47K

DGND

R13

47K R30

DGND

DGND

2

3

4

5

6

7

8

DGND

DGND

LVT1 SLV-1350U(P)

1

R17

2K

3

4

DGND

D02 GF1G

CN6 SMW250-04V_RED

1

2

MM4148 TR7

KRC246 D10

F2

TR15 KRC246

TR4

DGND

C01 1000uF

KRC246 TR5

KRC246

R33 47K

DGND

100nF C15

19.1K

R46 100K

R44 47K

DGND

R47

R40 47K

2K R22

KM1-M24 RY8

D15

GS1G

+24V

RY6 CS11-24SH

R09

150

4.7uF C24

DGND

-24V

47K R35

D12 MM4148

100nF C04

TR1 KRC246

RY4 FTR-F3AA024E

KRA226 TR14

C27 4.7uF

1K

DGND

4.7nF

C26

R11

MM4148 D13

DGND

C13 100nF

D03 GS1G

TR13

F1

DGND

47K R18

KRC246

470 R01

DGND

ZD3 ZMM55CV1

-24V

MM4148 D21

ZMM55CV1 ZD1

R50 200K

R02 470

C14 100nF

CN4

1

2

3

4

+5V

IC6

Vcc=+12V,GND=DGND

+ 3

- 2

1

+12V

SMW250-04V_WHT

R28 47K

DGND

KIA358F

47K R27

470uF

47K R43

100nF C10

DGND

C07

DGND

DGND DGND

C09 100nF

CBE2220BA BZ1

R16 80.6K

-24V

DGND

FTR-JRJB024W

D05 MM4148

GS1G D14

RY1

RY3 FTR-F3AA024E

R04

5V-1

+5V +5V

DGND

XTL1

DGND

2K

47K R29

8MHz

D01 GS1G

R03

D17 MM4148

10K

OUT

DGND

+5V

DGND TR10

KRC246

KIA7805AF IC2

GND

IN

C05 C06 470uF

6

7

8

DGND

+5V

47uF

24LC04B IC5

1

2

3

45

1K

R45

R26 47K

C03

KRC246 TR9

150

R08

100nF

1K R15

DGND

MM4148 D07

2K R10

DGND

GND

IN OUT

22uF C08

ELM7533CBA-S IC3

PTC1 270M

20K

47K R32

MM4148 D11

-24V

R05

R14 13K

DGND DGND

TR11

F1

DGND

R24 10K

KRA226

MM4148 D22

DGND

DGND

47K R36

+5V

DGND

R23 2K

D04

MM4148 D16 D19

MM4148

DGND

F2

GS1G

P15

P16 12

P2 7

16 P3

14 P4

17 P5

P6 4

P7 5

P8 6

P9 8

1 F12 2

F21 32

F22 33

NP-1 20

NP-2 21

NP-3 22

NP-4 23

P1 11

18 P10

P11 9

P12 10

P13 13

19 P14

15

DSP

1 SV

M-0

7SS2

5

24 1G

25 2G

26 3G

27 4G

28 5G

29 6G

30 7G

F11

27

28 X-OUT

D08 MM4148

15

16 P85

P86 17

18 P87

RESET 29

TEST 25

57 VAref

VAss 56

VDD 58

26 VSS

Vkk 19

X-IN

5 P72

P73 6

7 P74

P75 8

9 P76

P77 10

P80 11

12 P81

P82 13

14 P83

P84

2

P60 48

49 P61

50 P62

P63 51

52 P64

53 P65

P66 54

55 P67

3 P70

P71 4

20

21 P31

P32 22

23 P33

59 P50

P51 60

61 P52

P53 62

63 P54

P55 64

1 P56

P57

P11 33

34 P12

35 P13

P14 36

37 P15

P16 38

P17 39

24 P20

P21 30

31 P22

P30

40 P00

P01 41

P02 42

43 P03

44 P04

P05 45

46 P06

47 P07

P10 32

TMP87PM14F IC1

KRC246

DGND

ZD2 ZMM55CV1

MM4148 D18

TR12

DGND

10K R12

R31 47K

DGND

R48 26.1K

+5V

220 R25

DGND

R07

150

C16 10uF

+5V

DGND

+24V

RY9 KM1-M24

DGND

47K R41

5V-1

1

2

3

4

5

6

7

8

9

DGND DGND

SMW250-09V_RED CN2

KRC246 TR6

DGND

ZNR1 10D471

R42 47K

47K R39

R38 47K

KRC246 TR8

+24V

DGND

TR3 KRC246

+5V

1K R21

DGND

100uF C02

DGND

D23 MM4148

+5V

1

3

R20 2K

DGND

6

7

8

9

CN3 SMW250-03AV_RED

10

11

12

13

14

15

16

2

3

4

5

MM4148

+5V

FCZ12510HS-16A00 CN5

1

R34 47K

D20

NET

9

NET

8

NET

7

NET

6

NET

5

NET

4

NET

3

NET

2

NET12

NET13

NET14

NET15

NET16

NET11

NET10

DGND

NET16

NET15

NET14

NET13

NET12

NET11

NET10

NET13

NET14

NET15

NET16

NET11

NET10

NET9

NET8

NET7

NET6

NET5

NET4

NET3

NET2

NET1

NET

6

NET

5

NET

4

NET

3

NET

2

NET

7

NET

8

NET

9

NET12

- 29 -

Code No. Description Specification Q'ty Remark3501-001050 RELAY-MINIATURE 24VDC,200mW,5A,1FormA,10mS,5mS 1 RY073501-001063 RELAY-MINIATURE 24Vdc,408mW,3A,1FormC,10mS,5mS 1 RY063501-001155 RELAY-MINIATURE 24VDC,200MW,3000MA,1FORMA,10MS,10MS 5 RY01,03~05,083501-001188 RELAY-POWER 24V DC,0.53W,-,1FormA,9.3ms,10mS 1 RY023708-000530 CONNECTOR-FPC/FC/PIC 16P,2.54mm,STRAIGHT,SN 1 CN01DE07-10089A V.F.DISPLAY SVM-07SS25,GRN,7G,111SEG,78.4X 1 VFD1DE09-00071A IC MICOM TMP87PM74F,OTP-32K,QFP 8BIT-80PIN,-,-,-,- 1 IC01DE26-20144A TRANS-L.V SLV-5574U,120V,60HZ,AC17V/2.7V 1 LVT1DE30-20016A BUZZER CBE2220BA,STICK,-,-,-,-,-,-,- 1 BUZ1DE61-90164A HOLDER-DIGITRON BLK,NYLON#66,-,BLK,MW4370W,-,MW4370W 1DE92-00938A ASSY PCB AUTO 120V60HZ,VFD,RA-SSOTR-00,MO1650WA 10401-001083 DIODE-SWITCHING MM4148,100V,150MA,LL-34,TP 19 D06~240402-001103 DIODE-RECTIFIER 1T4,400V,1A,TS-1,TP 5 D01,02,04,05,250403-001288 DIODE-ZENER ZMM55C5V1,4.8-5.4V,500MW,LL-34,TP 3 ZD01,02,030501-000465 TR-SMALL SIGNAL MMBT3904,NPN,350MW,SOT-23,TP,30-300 1 TR010504-001008 TR-DIGITAL RN2427,PNP,200MW,2.2K/10K,SOT-23,TP 1 TR100504-001080 TR-DIGITAL KRC246S,NPN,200mW,2.2K/10K,SOT-23,TP 9 TR02~04,06~09,11,121202-000141 IC-VOLTAGE COMP. 7033,SOT-89,3P,-,SINGLE,0V,-,P 1 IC021404-000230 THERMISTOR-PTC 27ohm,20%,-,265V,1.5A,360mA,BK 1 PTC11405-000001 VARISTOR 470V,1250A,14x7.5mm,TP 1 ZNR12001-000495 R-CARBON 20KOHM,5%,1/4W,AA,TP,2.4X6.4MM 1 R342001-001077 R-CARBON(S) 150OHM,5%,1/2W,AA,TP,2.4X6.4MM 3 R01,02,032007-000033 R-CHIP 0OHM,5%,1/8W,DA,TP,3216 2 J16,17,182007-000282 R-CHIP 100KOHM,5%,1/10W,DA,TP,2012 1 R322007-000300 R-CHIP 10KOHM,5%,1/10W,DA,TP,2012 4 R12~14,172007-000468 R-CHIP 1KOHM,5%,1/10W,DA,TP,2012 5 R07~10,152007-000572 R-CHIP 220OHM,5%,1/10W,DA,TP,2012 1 R162007-000671 R-CHIP 2KOHM,5%,1/10W,DA,TP,2012 1 R062007-000931 R-CHIP 470OHM,5%,1/10W,DA,TP,2012 3 R04,05,112007-000941 R-CHIP 47KOHM,5%,1/10W,DA,TP,2012 6 R19~242203-000192 C-CERAMIC,CHIP 100nF,+80-20%,50V,Y5V,TP,2012, 5 C11~152401-000244 C-AL 100uF,20%,10V,GP,TP,6.3x7,5 1 C042401-000466 C-AL 10uF,20%,35V,GP,TP,5x7,5 1 C092401-000911 C-AL 22uF,20%,16V,GP,TP,5x7,5 2 C05,072401-001428 C-AL 470uF,20%,50V,GP,TP,10x20,5 1 C012401-001573 C-AL 47uF,20%,50V,GP,TP,6.3x11,2.5 1 C022401-002075 C-AL 4.7uF,20%,50V,GP,TP,5x11,5 1 C062802-000188 RESONATOR-CERAMIC 8MHz,0.5%,TP,10.0x5.0x8.0mm 1 XTL13711-000940 CONNECTOR-HEADER BOX,4P,1R,2.5mm,STRAIGHT,SN 1 CN053711-001117 CONNECTOR-HEADER BOX,8P,1R,2.5mm,STRAIGHT,SN 1 CN023711-004142 CONNECTOR-HEADER BOX,3P/5P,1R,5mm/2.5mm,STRAIGH 1 CN03DE39-60001A WIRE-SO COPPER PI0.6,SN,T,52MM,TAPING_WIRE,-, 14 J01~04,06~15DE41-00169A PCB-MAIN RA-SSOTR-**,FR-1,1,T1.6*W197*L330,- 1DE60-60012A PIN-EYELET ID2.1,OD2.5,L3.0,SN,BSP,T0.25, 5

8-2 P.C.B Pasts List

- 30 -

9. Schematic Diagrams9-1 Schematic DiagramS ( This Document can not be used without Samsung's authorization )

ELECTRONICS

This Service Manual is a property of Samsung Electronics Co.,Ltd.Any unauthorized use of Manual can be punished under applicableInternational and/or domestic law

Samsung Electronics Co., Ltd. July 2003Printed in KoreaCode No. : DE68-03132A