Deutz-Allis 231P4QPY, 616H, SMH7175WE Operating instructions

Deutz-Allis 231P4QPY, 616H, SMH7175WE Operating instructions

MICROWAVE OVEN

BASIC : SMH7178STD

MODEL : SMH7178STE

SEA

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

10. Reference

Contents

1. Precaution

1-1 Safety precautions

1-2 Special Servicing Precautions (Continued)

1-3 Special High Voltage Precautions

2. Specifications

2-1 Table of Specifications

3. Operating Instructions

3-1 Control Panel

3-2 Features & External Views

3-3 Accessary

3-4 INSTALLATION

3-4 REUSABLE GREASE FILTERS

4. Disassembly and Reassembly

4-1 Replacement of Magnetron, Motor Assembly and Lamp

4-2 Replacement of High Voltage Transformer

4-3 Replacement of Door Assembly

4-3-1 Removal of Door “C”

4-3-2 Removal of Door “E”

4-3-3 Removal of Key Door & Spring

4-3-4 Reassembly Test

4-4 Replacement of Fuse & H.V.Trans Fuse

4-5 Replacement of Drive Motor

4-6 Replacement of stirrer motor

4-7 Removal of stirrer

4-8 Replacement of Control Circuit Board

4-8-1 Removal of Control Box

4-3-4 Removal of P.C.B Assembly

5. Alignment and Adjustments

5-1 High Voltage Transformer

5-2 Low Voltage Transformer

5-3 Magnetron

5-4 High Voltage Capacitor

5-5 High Voltage Diode

5-6 Main Relay and Power Control Relay

5-7 Adjustment of Primary Switch, Door Sensing Switch and Monitor Switch

5-8 VENT EXHAUST BLOWER MOTOR

5-9 THERMAL CUTOUT(TCO’s)

5-9-1 Oven Thermal Cutout (Flame sensor)

5-9-2 Replacement of Flame Sensor

5-9-3 Bottom Thermal Cutout

5-9-4 Magnetron Thermal Cutout

5-9-5 Magnetron Thermal Cutout

5-10 SENSOR

5-11 Output Power of Magnetron

5-12 Procedure for Measurement of Microwave Energy Leakage

5-13 Check for Microwave Leakage

5-14 Note on Measurement

5-15 Leakage Measuring Procedure

6. Troubleshooting

6-1 Electrical Malfunction

6-1 Electrical Malfunction(continued)

7. Exploded Views and Parts List

7-1 Exploded Views

7-2 Main Parts List

9

4

4

3

3

2

2

1

1

7

8

5

6

19

19

20

21

17

17

18

18

15

15

16

17

14

14

15

15

22

23

24

24

25

21

21

21

22

13

13

14

14

11

12

12

13

10

10

11

11

10

10

9

9

Contents

7-3 Control & Door Parts List

7-4 Standard Parts List

8. P.C.B Diagrams

8-1 P.C.B Diagrams

8-2 P.C.B Parts List

8-2 P.C.B Parts List(continued)

9. Schematic Diagrams

9-1 Schematic Diagrams

10. Reference

10-1 Model name standard

10-2 Customer inquiry cases and countermeasures

10-2 Customer inquiry cases and countermeasures (Continued)

31

32

33

33

28

29

30

30

34

34

35

36

PRECAUTIONS TO BE OBSERVED BEFORE AND

DURING SERVICING TO AVOID POSSIBLE

EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

(a) Do not operate or allow the oven to be operated with the door open.

(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary:

(1) Interlock operation,

(2) proper door closing,

(3) seal and sealing surfaces

(arcing, wear, and other damage),

(4) damage to or loosening of hinges and latches,

(5) evidence of dropping or abuse.

(c) Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and connections.

(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner.

(e) A Microwave leakage check to verify compliance with the Federal performance standard should be performed on each oven prior to release to the owner.

1. Precaution

Follow these special safety precautions. Although the microwave oven is completely safe during ordinary use, repair work can be extremely hazardous due to possible exposure to microwave radiation, as well as potentially lethal high voltages and currents.

1-1 Safety precautions ( )

1. All repairs should be done in accordance with the procedures described in this manual. This product complies with Federal Performance Standard 21

CFR Subchapter J(DHHS).

2. Microwave emission check should be performed to prior to servicing if the oven is operative.

3. If the oven operates with the door open :

Instruct the user not to operate the oven and contact the manufacturer and the center for devices and radiological health immediately.

4. Notify the Central Service Center if the microwave leakage exceeds 5 mW/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 foundto have emission in excess of 5 mW/cm

2

,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 thedrawings and parts lists of this manual. This is especially important for the

Interlock switches, described above. Never alter or add to the mechanical or electrical design of the

MWO. Any design changes or additions will void the manufacturer’s warranty. Always unplug the unit’s AC power cord from the AC power source before attempting to remove or reinstall any component or assembly.

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.

- 1 -

1-2 Special Servicing Precautions (Continued)

17. When checking the continuity of the witches or transformer, always make sure that the power is OFF, and one of the lead wires is disconnected.

18. Components that are critical for safety are indicated in the circuit diagram by shading, or .

19. Use replacement components that have the same ratings, especially for flame resistance and dielectric strength specifications.

A replacement part that does not have the same safety characteristics as the original might create shock, fire or other hazards.

NOTE

: Connect the oven to a 20A. When connecting the oven to a

15A,make sure that circuit breaker can operate.

1-3 Special High Voltage Precautions

1. High Voltage Warning Do not attempt to measure any of the high voltages --this includes the filament voltage of the magnetron. High voltage is present during any cook cycle.

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

2. The high-voltage capacitor remains charged about 30 seconds after disconnection. Short the negative terminal of the high-voltage capacitor to to the oven chassis. (Use a screwdriver.)

3. High voltage is maintained within specified limits by close-tolerance, safety-related components and adjustments. If the high voltage exceeds the specified limits, check each of the special components.

High Voltage Capacitor

Fig. 1-1 Discharging High Voltage Capacitor

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.

- 2 -

PRECAUTION

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

PRECAUTION

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

2. Specifications

2-1 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 : 1,650W

FROM 100 TO 1100W(10 LEVEL POWER)

(IEC-705 TEST PROCEDURE)

2,450MHz

OM75P(10)ERHN

COOLING FAN MOTOR

29

14/16

”(W) x 15

15/16

”(H) x 15

11/32

”(D) mm

58.4 lbs

64.4 lbs

- 3 -

3. Operating Instructions

3-1 Control Panel

4

7

16

9

10

5

6

1

2

3

13

11

17

12

8

15

14

18

1. Sensor Reheat

2. Power Defrost

Sets weight of food to be defrosted.

3. Sensor Cook Buttons p.11

Sensor settings to cook popular foods.

4. Handy Helper, Kids Meals, Snack Bar

Selects type of dish to be reheated.

5. More/Less

Increase or decrease cooking time.

6. Number Buttons

Set cooking times or amounts and power

levels other than high.

7. Power Level

Press this pad to set a power level other

than high.

8. Clock am/pm

Sets current time

9. Light On/Night/Off Button

10. Turntable On/Off Button

11. One Minute +

Press once for every minute of cooking at

High power.

12. My Choice

Press to set non-cooking feature.

13. Custom Cook

Press twice to program your favorite recipe.

Press once to cook with that recipe.

14. Start

Press to start cooking.

15. Kitchen Timer

Sets kitchen or convenience timer.

16. Pause/Cancel

Press to pause oven or correct a mistake.

17. Help

Press to see help information about the

feature you are using.

18. Vent Fan Turbo/Hi/Low/Off Button

- 4 -

1. Sensor Reheat

2. Power Defrost

Sets weight of food to be defrosted.

3. Sensor Cook Buttons p.11

Sensor settings to cook popular foods.

4. Handy Helper, Kids Meals, Snack Bar

Selects type of dish to be reheated.

5. More/Less

Increase or decrease cooking time.

6. Number Buttons

Set cooking times or amounts and power

levels other than high.

7. Power Level

Press this pad to set a power level other

than high.

8. Clock am/pm

Sets current time

9. Light On/Night/Off Button

10. Turntable On/Off Button

11. One Minute +

Press once for every minute of cooking at

High power.

12. My Choice

Press to set non-cooking feature.

13. Custom Cook

Press twice to program your favorite recipe.

Press once to cook with that recipe.

14. Start

Press to start cooking.

15. Kitchen Timer

Sets kitchen or convenience timer.

16. Pause/Cancel

Press to pause oven or correct a mistake.

17. Help

Press to see help information about the

feature you are using.

18. Vent Fan Turbo/Hi/Low/Off Button

3-2 Features & External Views

Door

Ventilation Holes Oven Light

Handle

Door Latches

Glass Tray Guide Roller

Intake Holes

Safety Interlock Holes

Control Panel

758.9mm

398mm

- 5 -

3-3 Accessary

Glass tray Roller guide ring

- 6 -

3-4 INSTALLATION

The Microwave Oven is supported by a special bracket assembly (mounting system) supplied with the oven. The bracket assembly must be mounted to the wall with toggle bolts through the wall, and a lag screw into a wall stud. After the bracket assembly is installed, the unit can be slid over the two rails of the bracket assembly. Two bolts are run down through the cabinet bottom and into the oven case to pull the oven up against the cabinet bottom.

NOTE

: For easier removal and personal safety it is recommended that two people remove this product.

CAUTION!

The mounting surface must be capable of supporting the cabinet load, in addition to the 64 pound product, plus additional loads of up to 50 pounds or a

total weight of 114 pounds.

This product cannot be installed to cabinet arrangements such as an island or peninsula. It must be mounted to both a top cabinet and wall.

VENT BLOWER

The vent or exhaust blower is located at the top of the oven. It is shipped for vertical exhaust but can be changed to rear exhaust or recirculating

(See installation instrustions on how to change and/or blower section on how to remove).

COOKTOP LIGHTS

One 40-watt screw base incandescent bulbs are located on the bottom between the two grease filters. The bulbs are user replaceable by removing one screw and lowering access cover. The bulbs could be difficult to remove when replaced for the first time. a silicone glue is used to secure them during shipping.

OVEN LIGHT

A 40-watt screw base incandescent bulb is located in the top of the oven cavity at the front.

It is user replaceable by removing the top grill

(2 screws. On the front of outer case.). The bulb is then accessible by removing a metal cover (1 screw).

- 7 -

Mounting Plate

REMOVE SCREWS

3-5 REUSABLE GREASE FILTERS

The metal filter trap grease released by foods on the cooktop. They also prevent flames from foods on the cooktop from damaging the inside of the microwave.

For this reason, the filters must ALWAYS be in place when the hood the vent fan is used. The grease filter should be cleaned once a month, or as needed.

REMOVING CHARCOAL FILTER

To remove the charcoal filter, disconnect power at the main fuse or circuit breaker panel or pull the plug. Remove the top grille by removing the 2 screws that hold it in place.

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

AUTOMATIC FAN

An automatic fan feature protects the microwave from too much heat rising from the cooktop below it. If you have turned the fan on you may find that you cannot turn it. The fan will automatically turn off when the internal parts are cool. If may stay on for 30 minutes or more after the cooktop and microwave controls are turned off.

GRILLE REMOVAL

The top full-width grille is removable for service to some components, such as : oven light, cavity

T.C.O, vent motor capacitor and fuse.

TO REMOVE GRILLE :

1. Disconnect oven power.

2. Remove screws (2) from grille outer case.

3. Lift off grille.

REMOVING OVEN FROM WALL

(2 PEOPLE REQUIRED)

Oven is hooked on metal tabs at bottom of wall mounting plate and fastened to cabinet by (3) top cabinet bolts.

CAUTION : Oven weights 63.1 lbs. Requires 2

people for removal.

1. Disconnect power cord. Top vented modelsdisconnect duct and remove damper assembly.

2. Remove (3) top cabinet bolts.

3. Pull unit forward slowly providing adequate support to prevent dropping unit during removal of last top cabinet bolts.

- 8 -

Charcoal Filter

Reusable Grease Filters

Screws

Remove 2 grille screws to remove the grill

4. Disassembly and Reassembly

4-1 Replacement of Magnetron, Motor Assembly and Lamp

Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors

(all of which are contained in one assembly).

1. Disconnect all lead wires from the magnetron and lamp.

2. Remove a screw securing air cover.

3. Remove the air cover.

4. Remove screws securing the magnetron to the wave guide.

5. Take out the magnetron very carefully.

6. Remove tow from the back panel of fan motor assembly.

7. Take out the fan motor assembly.

8. Remove the oven lamp by rotating to pull out from hole of air cover.

NOTE1

: When removing the magnetron, make sure that its antenna does not hit any adjacent parts, or it may be damaged.

NOTE2

: When replacing the magnetron, be sure to remount the magnetron gasket in the correct position and make sure the gasket is in good condition.

4-2 Replacement of High Voltage Transformer

1. Discharge the high voltage capacitor.

2. Disconnect all the leads.

3. Remove the mounting bolts.

4. Reconnect the leads correctly and firmly.

PRECAUTION

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

PRECAUTION

There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH

VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near these circuits with the oven energized.

DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron.

- 9 -

4-3 Replacement of Door Assembly

4-3-1 Removal of Door “C”

Insert flat screw driver into the gap between Door

“A” and Door “C” to remove Door “C”. Be careful when handling Door “C” because it is fragile.

Then remove the door assembly.

Door "A"

Door "C"

4-3-2 Removal of Door “E”

Following the procedure as shown in the figure, insert and bend a thin metal plate between Door

“E” and Door “A” until you hear the ‘tick’ sound.

- Insertion depth of the thin metal plate should be

0.5mm or less.

4-3-3 Removal of Key Door & Spring

Remove pin hinge from Door “E”

Detach spring from Door “E” and key door.

- 10 -

DOOR "E"

Spring

4-3-4 Reassembly Test

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

1. When mounting the door to the oven, be sure to adjust the door parallel to the bottom line of the oven face plate by moving the upper hinge and lower hinge in the direction necessary for proper alignment.

2. Adjust so that the door has no play between the inner door surface and oven front surface. If the door assembly is not mounted properly, microwave energy may leak from the space between the door and oven.

3. Do the microwave leakage test.

4-4 Replacement of Main Fuse & H. V. Trans Fuse

The fuse is located behind the control panel mounted to the installation bracket.

1. Disconnect power and remove grille.

2. Remove a screw that secure the installation bracket.

MAIN FUSE

1. When 20A fuse blows out by the operation of interlock monitor switch failure, replace the primary interlock switch, door sensing switch, interlock monitor switch and power relay.

2. When the above 3 switches operate properly, check if any other part such as the control circuit board, blower motor or high voltage transformer is defective.

H. V. Trans

FUSE

MAIN FUSE

H. V. TRANS FUSE

1. When 20 Amp. fuse is blown due to operation of the H. V. Trans fall mode, the H. V. Trans Fuse must be replaced.

4-5 Replacement of Drive Motor

1. Disconnect power.

2. Remove the three screws at the assy base bottom.

3. Remove the plastic cover (fixed with a screw) that covers the motor.

4. Remove all of the wires connected.

5. Remove a screw from the motor.

6. Turn the motor to the right and remove it.

7. After replacing the motor, you should re-install it on the accurate position of the coupler.

8. Assembling is in the reverse order to disassebling.

BASE PLATE

DRIVE MOTOR

Screw(1)

- 11 -

4-6 Replacement of stirrer motor

1. Disconnect power and remove grille screws(2).

2. Remove grille and the bracket duct upper screw(1).

3. Remove the bracket duct upper and disconnect the stirrer motor wire.

4. Remove stirrer motor screws(1) and lift up stirrer motor after turn left.

STIRRER MOTOR

4-7 Removal of stirrer

The stirrer is located on the upper side of the cavity. The oven uses a top feed wave guide.

1. Disconnect power and open the door.

2. Remove the clip and turn the stirrer cover left.

3. Remove stirrer cover and the stirrer will come with it.

4. Replace the clip if the clip head broken.

CLIP

COVER STIRRER

STIRRER ASSEMBLY

COVER STIRRER

- 12 -

4-8 Replacement of Control Circuit Board

4-8-1 Removal of Control Box

1. Disconnect power and remove grille.

2. Remove a screw securing the control box assembly.

3. Be sure to ground any static electric charge in your body and never touch the control circuit.

4. Disconnect the connectors from the control circuit board.

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

1. Pull the lever end of the plastic fastener and remove the Flexible Printed Circuit(FPC) of membrane panel.

2. Remove screws (3) securing the control circuit board.

3. Lift up the control circuit board from the Ass’y control box.

4. When reconnecting the FPC connector, make sure that the holes on the connector are properly engaged with the hooks on the Plastic Fastener.

FPC connector

4 Screws

- 13 -

5. Alignment and Adjustments

PRECAUTION

1. High voltage is present at the high voltage terminals during any cook cycle.

2. It is neither necessary nor advisable to attempt measurement of the high voltage.

3. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the high voltage capacitor.

5-1 High Voltage Transformer

1. Remove connectors from the transformer terminals

and check continuity.

2. Normal resistance readings are as follows:

Secondary

Filament

Primary

SHV-U1870AR

80.5 Ω +2%

Shows Continuity

1100W 0.330 Ω + 2%

1000W 0.375 Ω + 2%

(Room temperature = 20°C)

Filament Terminals

Primary

Terminals

5-2 Low Voltage Transformer

1. The low voltage transformer is located on the

control circuit board.

2. Remove the low voltage transformer from the

PCB Ass’y and check continuity.

3. Normal resistor reading is shown in the table.

Terminals

1~2(Input)

4~5(Output 2.7V)

6~7(Output 7.0V)

7~8(Output 19.0V)

Secondary

Terminal

Resistance

SLV-1350U(P)

127.7 Ω

1.8 Ω

2.0 Ω

4.8 Ω

5-3 Magnetron

1. Continuity checks can indicate only an open

filament or a shorted magnetron. To diagnose an

open filament or shorted magnetron :

2. Isolate the magnetron from the circuit by

disconnecting its leads.

3. A continuity check across the magnetron filament

terminals should indicate one ohm or less.

4. A continuity check between each filament terminal

and magnetron case should read open.

Gasket Plate

Magnetron Antenna

Cooling Fins

- 14 -

5-4 High Voltage Capacitor

1. Check continuity of the capacitor with the meter set at the highest resistance scale.

2. Once the capacitor is charged, a normal capacitor shows continuity for a short time, and then indicates 9MΩ.

3. A shorted capacitor will show continuous continuity.

4. An open capacitor will show constant 9MΩ.

5. Resistance between each terminal and chassis should read infinite.

5-5 High Voltage Diode

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

2. With the ohm-meter set at the highest resistance scale, measure across the diode terminals. Reverse the meter leads and read the resistance. A meter with 6V, 9V or higher voltage batteries should be used to check the front-to back resistance of the diode (otherwise an infinite resistance may be read in both directions).

The resistance of a normal diode will be infinite in one direction and several hundred KΩ in the other direction.

5-6 Main Relay and Power Control Relay

1. The relays are located on the PCB Ass’y. Isolate them from the main circuit by disconnecting the leads.

2. Operate the microwave oven with a water load in the oven. Set the power level set to high.

3. Check continuity between terminals of the relays after the start pad is pressed.

5-7 Adjustment of Primary Switch, Door Sensing Switch and Monitor Switch

PRECAUTION

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

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

2. No specific adjustment during installation of Primary switch and Monitor switch to the latch body is necessary.

3. When mounting the Latch Body to the oven assembly, adjust the Latch Body by moving it so that the oven door will not have any play in it. Check for play in the door by pulling the door assembly. Make sure that the latch keys move smoothly after adjustment is completed. Completely tighten the screws holding the Latch Body to the oven assembly.

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

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

6.

Interlock Switch Replacement

- When replacing faulty switches, be sure switch mounting tabs are not bent, broken or otherwise deficient in their ability to secure the switches in place.

Body Latch

Primary Interlock Switch

Lever Switch(A)

Primary Interlock S/W

Monitor switch(COM-NC)

Door Sensing S/W

(Secondary Interlock S/W)

Interlock Monitor

Switch

Door Sensing Switch

(Secondary

Interlock Switch)

Door Open Door Closed

0

0

0

- 15 -

5-8 Vent Exhaust Blower Motor

THIS COMPONENT REQUIRE REMOVAL OF

MICROWAVE OVEN FROM INSTALLATION FOR

SERVICING.

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

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

RUN CAPACITOR

The run capacitor is located behind the top grille above the control area. The capacitor is used for more torque and electrical phasing.

Without the capacitor the blower might run but would be much slower.

TO TEST THE CAPACITOR

1. Remove grille, discharge capacitor and disconnect one capacitor lead.

2. Make appropriate capacitor check (with analog meter needle should rise then fall, cap is charging then discharging).

TO TEST BLOWER WINDINGS:

1. Disconnect power and remove grille.

2. Open control panel and discharfe capacitor.

3. Disconnent two wires to run capacitor. Continuity test across the two wires should ve approximately

75 ohms of resistance. This test allows you to read across all three windings at the same time.

TO REMOVE VENT BLOWER

1. Remove unit from its installation.

2. Remove 5 screws securing damper and motor assembly to top and back of unit and lift off.

(1 screw is located under damper.)

3. Disconnect blower plug.

NOTE: Place blower wires in routing slots to avoid pinching of wires.

- 16 -

Damper ASM

Blower ASM

5-9 Thermal Cutout (TCO’S)

There are 4 different thermal cutouts in this unit with 4 different purposes. They are :

1. Oven thermal cutout (flame sensor), on cavity top.

2. Hood thermal cutout, inside control area on duct.

3. Bottom thermal cutout, on floor of control area.

4. Magnetron thermal cutout, on magnetron.

5-9-1 Oven Thermal Cutout (Flame sensor)

The oven thermal cutout(Cavity TCO) is located on the top side of the oven cavity beside exhaust duct with a temperature rating of 248OF(120OC) and is non-resetable.

The cutout is tightly held to the top of the oven cavity by duct-upper.

OVEN THERMAL CUTOUT

STIRRER MOTOR

5-9-2 Replacement of Flame Sensor

Disconnect oven power. Remove Grille & Panel-outer.

1. Remove screws(3) securing the duct upper.

T.C.O

SCREW

Screw

2. Loft up the duct upper from the cavity.

3. Disconnect two wire leads.

4. Press the top of the thermal cutout and pull out it in the duct upper.

Press the Flame Sensor

SCREW

After press

- 17 -

5-9-3 Bottom Thermal Cutout

This cutout will protect the touch control from excessive heat by turning the vent fan on at low speed. If the surface units of the range are used for long periods of time heat will build up and could damage the microwave control. In order to prevent this a thermal cutout is installed on the duct behind the control. This cutout will close (158°F/70°C - vent fan energized)and open

(104°F/40°C - vent fan de-energized) depending on temperatures it sense.

To Remove hood Thermal Cutout :

1. Disconnect power and remove grille.

2. Remove control box assembly.

3. Remove two wire leads and unscrew one screw capturing cutout on base plate.

NOTE

: It this cutout were to open it would be difficult to detect. The only time it functions is during an overheat condition. It will be normally open when checked with an ohmmeter.

5-9-4 Magnetron Thermal Cutout

THIS COMPONENT REQUIRE REMOVAL OF

MICROWAVE OVEN FROM INSTALLATION FOR

SERVICING.

During a fire on the stove the heat could be intense enough to close the Hood Thermal Cutout and force the fan to run. While at moderate high temperature we do want it to run, however during a fire it is advantageous to NOT have the vent fan running. So if a fire were to start on the stove top the Bottom Thermal Cutout would open at 248°F(120°C) and remove all power to the microwave oven. This cutout is designed to not be resetable.

To Remove Bottom Thermal Cutout :

1. Disconnect power and remove grille.

2. Remove control box assembly.

3. Remove two wire leads and unscrews one screw capturing cutout on base plate.

HOOD THERMAL CUTOUT

BOTTOM THERMAL CUTOUT

HOOD THERMAL CUTOUT

BOTTOM THERMAL CUTOUT

- 18 -

5-9-5 Magnetron Thermal Cutout

The magnetron thermal cutout is located above the leads to the magnetrons. It is designed to prevent damage to the magnetron if an overheated condition develops in the tube to cooling fan failure, obstructed air ducts, dirty or blocked air intake.

Under normal operation, the magnetron thermal cutout remains closed. However, when abnormally high temperatures are reached within the magnetron, the magnetron thermal cutout will open at 320°F(160OC) causing the oven to shut down. After the temperature drops to 140°F(60°C) it will reset and cooking will be able to resume.

To Remove Magnetron Thermal Cutout :

1. See ‘Removing Magnetron’.

MAGNETRON THERMAL CUTOUT

MAGNETRON

5-10 Sensor

The Sensor Cooking Function uses a special gas sensor which detects both humidity(steam) and hydrocarbons(food odors) during the cooking process. Before conducting either of the sensor tests below, ensure the unit is plugged into a will outlet for at least 5 minutes. If already plugged in, proceed. The sensor is a plug-in device located in the vent area at the top left hand corner of the cavity behind the grille.

To Service :

1. Disconnect power and remove grille.

2. Separate retainer from receptacle and unplug sensor.

GAS SENSOR

VENT MOTOR

SENSOR COOKING TEST

1. Place 1/3 cup tap water in oven.

potato

3. Control Beeps and Shuts off.

Pause/Cancel

1) Test

OK

- Normal

2) Test

Fails

- Check Sensor. See Sensor Test Below.

SENSOR TEST (QUICK TEST)

1. With 2 fingers touch and hold the following pads at the same time :

Power Defrost Sensor Reheat

2. Observe diagnostic number in display (Numbers approximate).

15-185

(Normal-verify with “detection test” )

213

or Higher (Sensor failed to open, sensor unplugged, wiring or smart board.)

● Less then 6 (shorted sensor, or smart board).

NOTE

: Only heater terminals ( H ; Black and Red leads) can be checked with ohmmeter(30Ω).

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

♣ CAN DAMAGE SENSOR.

- 19 -

5-11 Output Power of Magnetron

CAUTION

MICROWAVE RADIATION

PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERA-

TOR 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 (“T

1

”, 10±1°C).

3. After moving the water into another glass vessel, place it in the center of the cooking tray. Set the oven to high power and operate for 41 seconds exactly. (3 seconds included as a holding time of magnetron oscillation:)

4. When heating is finished, stir the water again with the thermometer and measure the temperature (“T

2

”).

5. Subtract T

1

from T

2

. This will give you the water temperature rise. (∆T)

6. The output power is obtained by the following formula;

Output Power = 4.187 x 1000 x ∆T+0.55xMcx(T

38

2

-T

1

) 38 : Heating Time (sec)

41 : Counting Time (sec)

4.187 : Coefficient for Water

1000 : Water (cc)

∆T : Temperature Rise (T

2

-T

1

)

To : Room Temperature

Mc : Cylindrical borosilicate glass weight

7. Normal temperature rise for this model is 9.9°C to 10.3°C at ‘HIGH’.

NOTE 1

: Variations or errors in the test procedure will cause a variance in the temperature rise.

Additional power test should be made if temperature rise is marginal.

NOTE 2

: Output power in watts is computed by multiplying the temperature rise (step 5) by a factor of 91 times the of centigrade temperature.

- 20 -

5-12 Procedure for Measurement of Microwave Energy Leakage

1) Pour 275±15cc of 20±5°C(68±9°F) water in a beaker which is graduated to 600cc, and place the beaker in the center of the oven.

2) Start to operate the oven and measure the leakage by using a microwave energy survey meter.

3) Set survey meter with dual ranges to 2,450MHz.

4) When measuring the leakage, always use the 2 inch spacer cone with the probe. Hold the probe perpendicular to the cabinet door. Place the spacer cone of the probe on the door and/or cabinet door seam and move along the seam, the door viewing window and the exhaust openings moving the probe in a clockwise direction at a rate of 1 inch/sec. If the leakage testing of the cabinet door seam is taken near a corner of the door, keep the probe perpendicular to the areas making sure that the probe end at the base of the cone does not get closer than 5cm to any metal. If it gets closer than 5cm, erroneous readings may result.

5) Measured leakage must be less than 4mW/cm

2

, after repair or adjustment.

Maximum allowable leakage is 5mW/cm

2

4mW/cm

2

.

is used to allow for measurement and meter accuracy

5-13 Check for Microwave Leakage

1. Remove the outer panel.

2. Pour 275±15cc of 20±5°C(68±9°F) water in a beaker which is graduated to 600cc, and place the beaker in the center of the oven.

3. Start the oven at the highest power level.

4. Set survey meter dual ranges to 2,450MHz.

5. Using the survey meter and spacer cone as described above, measure near the opening of magnetron, the surface of the air guide and the surface of the wave guide as shown in the following photo.( but avoid the high voltage components.) The reading should be less than 4mW/cm

2

.

5-14 Note on Measurement

1) Do not exceed the limited scale.

2) The test probe must be held on the grip of the handle, otherwise a false reading may result when the operator’s hand is between the handle and the probe.

3) When high leakage is suspected, do not move the probe horizontally along the oven surface; this may cause damage to the probe.

4) Follow the recommendation of the manufacturer of the microwave energy survey meter.

5-15 Leakage Measuring Procedure

5-15-1 Record keeping and notification after measurement

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

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

2

after determining that all parts are in good condition, functioning properly and the identical parts are replaced as listed in this manual notify that fact to ;

CENTRAL SERVICE CENTER

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

- 21 -

6. Troubleshooting

PRECAUTION

1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE.

2. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT.

3. DISCHARGE THE HIGH VOLTAGE CAPACITOR.

4. WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE LEAD

WIRE FROM THESE PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE ON. TO

DO OTHERWISE MAY RESULT IN A FALSE READING OR DAMAGE TO YOUR METER.

5. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCE STATIC

DISCHARGE MAY DAMAGE IT. ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE

ANY STATIC CHARGE BUILT UP.

6-1 Electrical Malfunction

SYMPTOM

Oven is dead.

Fuse is OK.

No display and no operation at all .

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

CAUSE

1. Open or loose lead wire harness

2. Open thermal cutout (Magnetron)

3. Open low voltage transformer

4. Defective Ass’y PCB

Oven does not accept key input (Program)

Timer starts countdown but no microwave oscillation.

(No heat while oven lamp and fan motor turn on.)

CORRECTIONS

Check fan motor when thermal cutout is defective.

Check Ass’y PCB when LVT is defective.

1. Shorted lead wire harness

2. Defective primary latch switch

(NOTE 1)

3. Defective monitor switch

(NOTE1)

4. Shorted HVCapacitor

5. Shorted HVTransformer

(NOTE2)

Check adjustment of primary, interlock monitor, power relay, door sensing switch.

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.

Refer to operation procedure.

1. Key input is not in-Sequence

2. Open or loose connection of membrane key pad to Ass’y PCB

3. Shorted or open membrane panel

4. Defective Ass’y PCB Replace PCB main.

1. Off-alignment of latch switches

2. Open or loose connection of high voltage circuit especially magnetron filament circuit

NOTE

: Large contact resistance will bring lower magnetron filament voltage and cause magnetron to lower output and/or intermittent oscillation.

3. Defective high voltage components

H.V.Transformer H.V. Capacitor

H.V.Diode, H.V.Fuse Magnetron

4. Open or loose wiring of power relay

5. Defective primary latch switch

6. Defective power relay or Ass’y PCB

Adjust door and latch switches.

Check high voltage component according to component test procedure and replace if it is defective.

Replace PCB main.

- 22 -

6-1 Electrical Malfunction(continued)

SYMPTOM

Oven lamp and fan motor turn on

Oven can program but timer does not start.

Microwave output is low;.

Oven takes longer time to cook food.

CAUSE

1. Misadjustment or loose wiring of primary latch switch

2. Defective primary latch switch

1. Open or loose wiring of secondary i nterlock switch

2. Off-alignment of primary interlock

3. Defective secondary interlock S/W

1. Decrease in power source voltage.

2. Open or loose wiring of magnetron filament circuit. (Intermittent oscillation))

3. Aging of magnetron

Loose wiring of door sensing switch Fan motor turns on when plugged in

Oven does not operate and return to the plugged in mode.

Defective Ass’y PCB

CORRECTIONS

Adjust door and latch switches.

Adjust door and interlock switches.

Consult electrician.

Check wire of door sensing switch.

Replace PCB main.

Loud buzzing noise can be heard.

Turntable motor does not rotate.

Oven stops operation during cooking

Sparks

Uneven cooking

1. Loose fan and fan motor

2. Loose screws on H.V.Transformer

3. Shorted H.V.Diode

1. Open or loose wiring of turntable motor.

2. Defective turntable motor.

1. Open or loose wiring of primary interlock switch

2. Operation of thermal cutout (Magnetron)

1. Metallic ware or cooking dishes touching on the oven wall.

2. Ceramic ware trimmed with gold or silver powder also causes sparks.

Uneven intensity of microwave due to its characteristics.

Noise may result from the motor.

Tighten screws of fan motor.

Tighten screws of H.V.Transformer.

Replace H.V.Diode.

Replace turntable motor.

Adjust door and latch switches.

Inform the customer.

Do not use any type of cookware with metallic trimming.

Wrap thinner parts of the food with aluminum foil.

Use plastic wrap or cover with a lid. Stir once or twice while cooking foods such as soup, cocoa, or milk.

Replace turntable motor.

Noise from the turntable motor when it starts to operate.

Display error1

Display error2

Display error3

Display error4

Shorted sensor’s circuit.

Open sensor’s circuit.

On the cooling mode, sensor’s Vout was not less than 4.7V within 3minutes.

Let oven cool for at least 5minutes.

Check connection of the sensor if the sensor’s circuit was shorted or not by the alien substance.

Check connection of sensor’s wire.

Let oven cool for at least 5minutes.

On the way to sensing, the door was open. Press the ‘pause/cancel’pad, and then you have to do all over again.

- 23 -

7. Exploded Views and Parts List

7-1 Exploded Views

P090

D041

M060

U008

P087

P091

P088

P089

P007

P125

P007

P006

M061

T017

W002

T001

W022

P032

P208

M149

P100

M068

P106

P104

P102

M149

P117

P099

M067

P101

D040

T032

P034

P113

P098

P179

P178

P112

H032

M219

P039

C089

P124

M036

P122

W023

U003

P001

P015

P030

P097

M050

M024

P012

M040

P013

P014

M001

M015

D024

D004

T036

T037

D002

D005

D006

D019

C082

D060

D011

D090

D037

D049

R066

C001

C009

C073

D090

C005

C004

C133

C133

P156

C073

C089

M059

C081

M087

M034

M036

U004

U003

U007

M059

P059

M049

P121

M038

U005

U012

P123

P122

U001

M048

M155

M039

P109

M017

M023

M035 M029

B006

B001

B018

B002

B001

B013

M041

M206

H018

M021

- 24 -

LEVEL No

1-1 M036

1-1

1-2

1-2

1-2

1-1

1-1

1-2

1-1

1-2

1-2

1-2

1-2

1-2

1-2

1-1

1-2

1-2

1-2

1-1

1-1

1-2

1-1

1-1

1-1

1-1

1-1

1-1

1-1

1-1

1-2

1-2

1-1

1-2

1-2

1-1

1-1

1-1

1-1

1-1

1-1

1-1

1-1

M155

P123

P122

M048

M206

M039

M040

M041

W002

U001

M036

P089

P090

P091

P032

B018

B002

B001

B006

B013

M015

U008

M061

M001

C081

M034

M087

T001

P012

P013

P014

M060

P087

P088

M038

M024

M049

M050

M029

M059

P121

P059

7-2 Main Parts List

(S.N.A : SERVICE NOT AVAILABLE)

Code No.

4713-001013

Description

LAMP-INCANDESCENT

Specification

130V,-,40W,ORG,E17/20,

DE26-00082D TRANS H.V

DE31-00029B MOTOR VENTILATION

SHV-U1870B,120V,60HZ,2460/2220

SMV-460UA-1,SMH7175WE/

DE31-10172A MOTOR-SYNCHRONOUS M2HJ24Z709,ST-16F,21V,

DE31-10173A MOTOR-SYNCHRONOUS M2HJ29A709,ST-16F,21V,

DE47-20007A THERMOSTAT

DE61-00375A HOLDER-RACK

DE61-00411A BRACKET-DUCT REAR

DE63-00138A COVER-FRONT

PW-2N(160/60)187Z,250V7.5A,16

OTR-1.5CUFT,PP,-,-,-,-,-

SMH7175,SECC,T0.5,W200

SMH7175,SECC,T0.5,W100,L200,

DE63-00196A FILTER-AIR

DE63-30016D FILTER-CHARCOAL

DE64-00754A PANEL-OUTER

DE66-20095B BUTTON-LOCK

DE67-00179A COUPLER

DE71-60121A COVER-STIRRER

DE74-20002A TRAY-COOKING

DE92-90242A ASSY-HOOD DAMPER

DE71-60051A COVER-DAMPER

DE72-40022A DAMPER-MAIN

DE92-90505E ASSY-HARD WARE

DE60-10111A SCREW-LAG

DE60-20022A BOLT-TOGGLE

SMH7175,AL-MESH,T2.0,W150,L34

SMH7175,AL,T10,W222,L100

SMH7175,V/STEEL,TO.5+0.2,W40

-,-,OTR5,-,-,TB53)

SMH7175,SPS,BRN,-,-,-

-,PP,T2.0,W7,L198,-,85G,-

GLASS,T6,-,-

JVM-250BL,OTR4,-,-,-,-

-,FESN5,T0.22,W68,L248.4,-,

-,SECC,-,W28,L650,OTR4,-,T0.

SMH7175,-,-,-

-,-,-,-,MSWR,W1/4X50,-,-,-,-

MSWR,W3/16X75,-,-,-,-,-,-,-

DE60-20066A BOLT-FLAT

DE60-30022A NUT-TOGGLE

DE63-10011A GROMMET

DE92-90508A ASSY-HOLDER NUT

DE96-00082C

3405-001033

ASSY BODY LATCH

SWITCH-MICRO

3405-001034 SWITCH-MICRO

DE66-00084A BODY-LATCH

DE66-90106B LEVER-SWITCH LOWER

DE96-00218A ASSY-POWER CORD

DE96-00268A ASSY BASE PLATE

DE47-20034A THERMOSTAT

DE47-20059A THERMOSTAT

DE61-00415A BASE-PLATE

DE96-00269A ASSY-HVC

2501-001011 C-OIL

DE61-00115A

DE91-70063D

BRACKET-HVC

ASSY-HVD

DE96-00490A ASSY-WIRE HARNESS A

DE97-00360A ASSY-BASE BOTTOM

4713-001013 LAMP-INCANDESCENT

UNF1/4,L110,MSWR10,-,-,OTR6,-,

SBC1,ZPC2,WHT,-,-,-,-,-,-

-,MS,-,-,-,DACB-16,-,-,-

OTR6,-,-,-,-,-

SMH7175WE/XAA,-

125/250VAC 16A,200GF,SPSTNC

125/250VAC,16A,200GF,SPST-N

JVM-1860,PBT,-,-,-,-,-

PBT,T2.0,-,-,2.0g,OTR

OTR9,120V60HZ,GE,SJT3/14

SMH7175,B/PLATE+TCO

40/70,M5,-,-,-,-,-,-

PW-2N(8XV),125V15A,V,120/0,23

SMH7175,SECC,T0.8,-,-,-,-

SMH7175,0.91UF HVC

910nF,2100V,BK,54x35x75mm,20mm

SMH7175,SECC,T0.6,-,-,-,-

HV03-12,MWO-GE,RED

SMH7178STE/XAA,120V/

SMH7175,INCANDESCENT LA

130V,-,40W,ORG,E17/20,

Q’ty SA/SNA

1 SA

1

1

1

1

2

1

1

1

1

1

1

2

1

1

1

2

1

3

3

1

1

1

1

1

1

2

1

1

1

1

1

3

1

1

1

4

1

1

1

1

1

1

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

Remark

ASSY DUCT

UPPER

T/T

S/T

MGT

MONITOR

- 25 -

1-3

1-3

1-3

1-2

1-3

1-2

1-3

1-3

1-3

1-1

1-2

1-2

1-2

1-2

1-1

1-2

1-2

1-2

1-2

LEVEL No

1-2 U003

1-2 U007

1-2

1-2

U004

U012

1-2

1-1

1-2

U005

P006

P125

P007

M021

M023

H018

P109

M017

P034

W022

P122

P030

P098

P178

P179

H032

W023

P112

P113

P097

U003

1-1

1-1

1-1

1-1

1-3

1-3

1-3

1-1

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

P039

M219

C089

P001

T036

T037

T017

T030

P015

M067

P099

P100

P104

M149

P106

M068

P101

7-2 Main Parts List

(S.N.A : SERVICE NOT AVAILABLE)

Code No.

Description

DE47-00006A HOLDER-LAMP

DE61-00406B BASE-BOTTOM

Specification

-,250V,75W,250X187 2POLE,OTR

SMH7175,SECC,T0.5,W354.5,L75

DE61-00407A BRACKET-BOTTOM LAMP SMH7175,SECC,T0.4,-,

DE63-00137B COVER-GLASS COOKTOP SMH7175,SECC,T0.5,W9

DE64-00911A GLASS-COOKTOP LAMP

DE97-00363A ASSY-MOUNTING PLATE

DE66-00121A WIRE-MOUNTING

SMH7175,TEMP-GLASS,T2

SMH7175,MOUNTING+WIR

SMH7175,MSWR10,ZNC2,-,-

DE70-00378A PLATE-MOUNTING

DE97-00365C ASSY-COVER MOTOR

DE31-10177E MOTOR FAN

DE31-90051A BLADE-FAN

DE63-00141A COVER-MOTOR

DE96-00400B ASSY NOISE FILTER

DE97-00366D ASSY-DUCT UPPER

DE39-30099A LEAD WIRE-F

DE47-20059A THERMOSTAT

DE59-50002A CAPACITOR-MOTOR

SMH7175,SECC ,-,T0.8,W130

SMH7175/SMH7178,ASSY-NO

SMF-1850UA1,SMH7175WC,-,60HZ,-

P.P,T,D130,-,-,-,-

SMH7175,PP(FB53),T2.5,-,-,-,

SN-UF12B,250V20A,OTR10

SMH7178,HUMIDITY SENSOR,

L140,JVM-1340BW,-,-,-,-,-

PW-2N(8XV),125V15A,V,120/0,23

SH-M 10UF,220V10UF,-,DMB

DE97-00181A ASSY-CAM LOUVER

3405-001050 SWITCH-MICRO

3405-001051 SWITCH-MICRO

DE31-10154C MOTOR DRIVE

JVM-1860,ASSEMBLY,-,-

125V,0.1A,60GF,SPNC

125V,0.1A,60GF,SPNO

M2CK59ZT69-H,-,-,120V60HZ,-,

DE39-00253A WIRE HARNESS-CAM

DE61-00118A BRACKET-CAM PLATE

JVM-1860,-,-,-,-,-,-,-,

JVM-1860,SCP,T2.0,W60.

DE72-00145A CAM-LOUVER JVM-1860,POM(KEPITAL FE-22),-

DE97-00371B ASSY-DUCT UPPER(SUB) JMV8186,HUMIDITY-SE

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

DE67-00168A DUCT-UPPER SMH7175,PP,T2.0,BLK,-,-,-

DE97-00585A ASSY-SENSOR HUMIDITY SMH7175WE/XAA,-,HUM

DE39-40673F WIRE HARNESS-H

DE97-00367A ASSY-STIRRER

DE31-00023A BLADE-STIRRER

DE61-00505A HOLDER-STIRRER

SMH7175WE/XAA,-,-,-,-,-,-

SMH7175,H/STIRRER+B/STIRRER

SMH7175,ALP1050,-,-,PI82,T

SMH7175,SPS,-,-,-,-,-

DE97-00368A ASSY-GUIDE ROLLER

DE75-00036A WIRE RACK

DE97-00411A ASSY-BKT DUCT UPPER

DE97-00496A ASSY-GRILLE

SMH7175,SPS,G/ROLLER+R

SMH7175,SNC2,D5,-,-,-,-,-

SMH7175BC,BKT-DUCT U

SMH7178,-,-,-

DE61-00128A HINGE-GRILLE(R)

DE61-00129A HINGE-GRILLE(L)

DE61-00177A HINGE-GRILLE(M)

DE61-00527A SPRING-LOUVER

DE63-00244A EARTH-GRILLE

DE64-01294A GRILLE

DE97-00497A ASSY-COVER GRILLE

JVM-1860,SECC,T0.8,-,-,-

JVM-1860,SECC,T0.8,-,-,-

JVM-3660,SECC,T1.6,-,-,-

JVM-2070,HSWR,-,-,-,-,-,-,

SMV9165,STS301,T0.15,W13.5,

SMH7178,PC,T2.5,W75,L757,-,BLK,-

SMH7178,CHASSIS+BKT-C/

Remark

GRILLE

GRILLE

GRILLE

GRILLE

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

2

Q’ty SA/SNA

2 SA

1 SA

1

1

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

SA

SA

SNA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

- 26 -

7-2 Main Parts List

LEVEL No

1-3 P102

1-3

1-3

1-1

P117

P208

Code No.

DE61-00150A

DE61-00672A

DE64-01296A

Description

BRACKET-BARRIER GR

BRACKET-COVER GRILLE

CHASSIS-GRILLE

M035 OM75P(10)ERHN ASSY-MAGNETRON

Specification

JVM-1860,SECC,T0.5,-,

SMH7178,SECC,T1.2,W

SMH7178,STS430 #4,T0.5,W7

OM75P(10)ERHN

(S.N.A : SERVICE NOT AVAILABLE)

Q’ty SA/SNA

1 SA

1

1

1

SNA

SNA

SA

Remark

GRILLE

- 27 -

7-3 Control & Door Parts List

1-3

1-1

1-2

1-2

1-2

1-2

1-3

1-3

1-3

LEVEL

1-1

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-3

1-3

1-3

1-2

1-3

1-3

1-2

(S.N.A : SERVICE NOT AVAILABLE)

No Code No.

Description

D049 DE94-01118A ASSY DOOR

D060 6107-001175 SPRING-ES

D005 DE01-00127A FILM-DOOR

D090 DE63-00289A EARTH-SPRING

D006 DE64-00759A DOOR-C

D011 DE64-00760A KEY-DOOR

D019 DE64-01293A HANDLE-DOOR

D004 DE94-00882B ASSY DOOR-E(COATING)

D037 DE94-01117A ASSY DOOR-A

D024 DE64-01292A SCREEN-DOOR(B)

D002 DE64-01295A DOOR-A

D040 DE64-01299A CHASSIS-DOOR(U)

D041 DE64-01300A CHASSIS-DOOR(L)

C082 DE94-01120D ASSY CONTROL-BOX

C089 DE39-40673A WIRE HARNESS-H

D090 DE63-00289A EARTH-SPRING

C009 DE64-00766B WINDOW-DISPLAY

Specification

SMH7178,BLK,PREMIUM

HSWR,BLUING,PI0.95,D8.5,L49.4,

JVM-1860,POLYESTER,-,L479,T0.0

SMH7178,HSWR,T0.4,OD5,L9.9,

SMH7175,PP,T1.5,-,-,-,BLK,-

SMH7175,PBT,-,-,BLK,-,-

SMH7178,AL,-,W28.3,L254.5,-,

SMH7175BC,BLK-COATI

SMH7178,BLK,SCREEN ADHESION

SMH7178,TEMP-GLASS,T3.2,W

SMH7178,PC,T2.5,L619,W327,-,BLK,-

SMH7178,STS430 #4,T0.5,W

SMH7178,STS430 #4,T0.5,W

120V/60HZ,SMH7178STE/XA

120V60HZ,OTR6 ALL MODEL,G

SMH7178,HSWR,T0.4,OD5,L9.9,

4150,SAN,T2.0,W37,L84,YEL

C001 DE94-01119A ASSY CONTROL-PANEL

C133 DE64-01297A CHASSIS-PANEL(U)

C133 DE64-01298A CHASSIS-PANEL(L)

C005 DE64-01302A PANEL-CONTROL

C073 DE97-00498B ASSY-BRACKET C/PANEL

R066 DE61-00266A BRACKET-PCB

120V/60HZ,SMH7178,BLK

SMH7178,STS430 #4,T0.5,

SMH7178,STS430 #4,T0.5,

SMH7178,PC,T2.5,W138.5,L32

SMH7178STE/XAA,C/PA

MO1650WA,SECC,T0.5,-,-,-,-

P156 DE61-00673A BRACKET-CONTROL PANEL SMH7178,SECC,T0.5,

C004 DE34-00205C SWITCH MEMBRANE SMH7178STE/XAA,-,129.1,P

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

Q’ty SA/SNA Remark

1 SA

1 SA

SA

SNA

SA

SA

SA

SA

SA

SA

SA

SNA

SNA

SA

SA

SNA

SA

SA

SNA

SNA

SNA

SA

SA

SA

SA

- 28 -

7-4 Standard Parts List

1-1

1-1

1-1

1-1

1-1

1-2

1-2

1-2

1-1

1-1

1-1

1-1

1-2

1-1

1-1

1-1

1-1

1-1

1-1

1-2

1-2

1-2

1-2

1-2

1-2

1-3

1-3

1-3

1-2

1-1

1-1

1-1

1-1

1-1

1-1

1-1

1-1

Level

1-2

1-2

1-1

1-3

1-2

Code No

DE60-20066A

DE60-20022A

DE60-30015A

DE60-30063A

DE60-30022A

DE60-10082I

DE60-10082I

DE60-10082I

DE60-10082I

DE60-10082I

DE60-10082I

DE60-10082I

DE60-10082I

Description

BOLT-FLAT

BOLT-TOGGLE

NUT-FLANGE

NUT-MOUNTING

NUT-TOGGLE

SCREW-A

SCREW-A

SCREW-A

SCREW-A

SCREW-A

SCREW-A

SCREW-A

SCREW-A

Specification

UNF1/4,L110,MSWR10,-,-,OTR6,-,

MSWR,W3/16X75,-,-,-,-,-,-,-

M5,P0.8,MSWR10,FEFZY,-,-,-,-,-

-,M6.3,S10C,ZNC,YEL,-,-,-,-

SBC1,ZPC2,WHT,-,-,-,-,-,-

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

DE60-10082I

DE60-10082I

SCREW-A

SCREW-A

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

-,-,-,-,2S-4X12,FEFZY,-,-,-,-

DE60-10111A SCREW-INCH MACH -,-,-,-,MSWR,W1/4X50,-,-,-,-

6002-000643 SCREW-TAPPING TH,+,2S,M4,L10,ZPC(YEL),SWRCH1

6002-001170

6002-001173

6002-001173

6006-001170

6006-001175

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

FH,STAR,2,M4,L12,SIL,SWRCH18A

FH,+,2S,M4,L12,ZPC(BLK),MSWR

FH,+,2S,M4,L12,ZPC(BLK),MSWR

TH,+,WT,TC,M4,L10,ZPC(YEL),SWRCH18A,-

WS,TH,+,M4,L8,ZPC(YEL)

DE60-10045A

DE60-10051A

DE60-10051A

DE60-10062A

DE60-10062A

DE60-10067A

DE60-10067A

DE60-10067A

DE60-10080A

6002-000643

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

-,-,FEFZY,-,PH,M3,-,L6,-,-

-,-,MSWR,-,PH,M4,-,L6,-,-

-,-,MSWR,-,PH,M4,-,L6,-,-

-,-,FEFZB,-,TH,M4,-,L12,-,-

-,-,FEFZB,-,TH,M4,-,L12,-,-

-,-,FEFZB,2-SLOT,TH,M4,-,L8,-

-,-,FEFZB,2-SLOT,TH,M4,-,L8,-

-,-,FEFZB,2-SLOT,TH,M4,-,L8,-

-,-,-,-,M5,L12,-,2S,-,-

TH,+,2S,M4,L10,ZPC(YEL),SWRCH1

DE60-10051A

6002-000630

DE60-10045A

DE60-10067A

6002-001004

DE60-10062A

6002-001169

DE60-10051A

6002-000630

6002-000643

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

SCREW-TAPPING

-,-,MSWR,-,PH,M4,-,L6,-,-

PH,+,-,2S,M3,L8,ZPC(YEL),SWRCH18A,-

-,-,FEFZY,-,PH,M3,-,L6,-,-

-,-,FEFZB,2-SLOT,TH,M4,-,L8,-

TH,+,2,M4,L30,ZPC(YEL),SWRCH18

-,-,FEFZB,-,TH,M4,-,L12,-,-

PH,+,2S,M3,L25,ZPC(YEL),MSWR10

-,-,MSWR,-,PH,M4,-,L6,-,-

PH,+,-,2S,M3,L8,ZPC(YEL),SWRCH18A,-

TH,+,2S,M4,L10,ZPC(YEL),SWRCH1

(S.N.A : SERVICE NOT AVAILABLE)

1

1

1

2

2

1

1

1

1

5

8

4

2

1

1

2

1

1

1

1

1

2

1

4

2

2

2

2

3

2

2

4

1

1

1

3

2

4

2

3

Q’ty Remark

3 SA

3 SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SNA

SA

SA

SNA

SA

SA

SA

SNA

SA

SA

SA

SA

SA

SNA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

MGT

ASSY HVC

BASE PLATE

BKT DUCT REAR

BKT MOUNTING PLATE

DUCT UPPER

FAN MOTOR

P/OUTER

VENT MOTOR

N/FILTER SCREW

CAVITY FRONT

B/D-LATCH

GRILLE

P/OUTER

P-CORD

ASSY HVD

MGT TCO

S.T MOTOR

TURNTABLE MOTOR

BKT D/UPPER

C/BOX

ASSY HOOD DAMPER

BASE BOTTOM

P/OUTER

HVT

PCB

BT-TCO

SA/SNA

MICRO-S/W

MOTOR-DRIV

HUMIDITY SENSOR

HINGE-GRILLE

- 29 -

8. P.C.B Diagrams

8-1 P.C.B Diagrams

( This Document can not be used without Samsung’s authorization )

L1

N

C 09 100nF

ZD03

UZ5.1B S B

T C O

C N05

S MW250-03V _WHT

B Z01

C B E 2220B A

- 30 -

DS P 1

S V M-07S S 25

1 1

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-2

1-1

....2

1-2

1-2

1-2

1-1

1-1

1-2

1-2

1-2

1-2

1-2

1-2

8-2 P.C.B Parts List

LEVEL

1-1

1-2

1-2

1-2

1-2

1-2

1-1

1-1

Code No.

Description

0204-001118 FLUX

0401-001002 DIODE-SWITCHING

0402-001103 DIODE-RECTIFIER

0403-000355 DIODE-ZENER

0504-001044 TR-DIGITAL

0504-001178 TR-DIGITAL

1201-001125 IC-OP AMP

1203-001037 IC-POSI.FIXED REG.

1203-001238 IC-POSI.ADJUST REG.

1203-001238 THERMISTOR-PTC

1405-000001 VARISTOR

2001-000009 R-CARBON

2001-000062 R-CARBON

2001-000273 R-CARBON

2001-000290 R-CARBON

2001-000429 R-CARBON

2001-000446 R-CARBON

2001-000577 R-CARBON

Specification

SV-95-1F,C19H29COOH,C3H7OH,-,1

1N4148M,100V,200mA,DO-34,TP

1T4,400V,1A,SOD-106,TP

UZ5.1BSB,5-5.2V,500MW,DO-35,TP

KRA226M,PNP,400MW,2.2K/10K,TO-92M,TP

KRC246M,NPN,400mW,2.2K/10Kohm,TO-

92M,TP

75S01,SOP,5P,63MIL,SINGLE,100d

78L05,SOT-89,3P,185MIL,PLASTIC

78L15,TO-92,3P,-,PLASTIC,14.4/

27ohm,20%,-,265V,1.5A,360mA,BK

470V,1250A,14x7.5mm,TP

20KOHM,5%,1/8W,AA,TP,1.8X3.2MM

470OHM,5%,1/4W,AA,TP,2.4X6.4MM

100KOHM,5%,1/8W,AA,TP,1.8X3.2MM

10KOHM,5%,1/8W,AA,TP,1.8X3.2MM

1KOHM,5%,1/8W,AA,TP,1.8X3.2MM

2.2KOHM,5%,1/2W,AA,TP,3.3X9MM

2KOHM,5%,1/8W,AA,TP,1.8X3.2MM

2001-000780 R-CARBON

2001-000786 R-CARBON

2004-000218 R-METAL

2004-000517 R-METAL

2004-001978 R-METAL

2004-004255 R-METAL

2004-005091 R-METAL

2004-005092 R-METAL

2011-000777 R-NET

2203-000192 C-CER,CHIP

2203-000260 C-CER,CHIP

2203-000889 C-CER,CHIP

2401-000244 C-AL

2401-000911 C-AL

2401-001415 C-AL

2401-001573 C-AL

2401-002075 C-AL

2401-002216 C-AL

470OHM,5%,1/8W,AA,TP,1.8X3.2MM

47KOHM,5%,1/8W,AA,TP,1.8X3.2MM

10Kohm,1%,1/8W,AA,TP,1.8x3.2mm

200Kohm,1%,1/8W,AA,TP,1.8x3.2m

300ohm,1%,1/8W,AA,TP,1.8x3.2mm

3.32Kohm,1%,1/8W,AA,TP,1.68x3.81mm

249Kohm,1%,1/8W,AA,TP,1.8x3.2mm

348Kohm,1%,1/8W,AA,TP,1.8x3.2mm

47Kohm,5%,1/8W,A,SIP,8P,TP

100nF,+80-20%,50V,Y5V,TP,2012,

10nF,10%,50V,X7R,2012

4.7nF,10%,50V,X7R,TP,2012

100uF,20%,10V,GP,TP,6.3x7,5

22uF,20%,16V,GP,TP,5x7,5

470uF,20%,35V,GP,TP,10x20,5

47uF,20%,50V,GP,TP,6.3x11,2.5

4.7uF,20%,50V,GP,TP,5x11,5

2200uF,20%,35V,GP,TP,16x25,7.5

2802-000188 RESONATOR-CERAMIC

3501-000256 RELAY-POWER

8MHz,0.5%,TP,10.0x5.0x8.0mm

24VDC,1200VA,22MA,-,9MS,5MS

3501-001155 RELAY-MINIATURE 24VDC,200MW,3000MA,1FORMA,10MS,1

0MS

3708-001550 CONNECTOR-FPC/FFC/PIC 16P,1.25MM,STRAIGHT,SN,ZIF,-,SINGLE

3711-000024 CONNECTOR-HEADER BOX,3P,1R,2.5MM,STRAIGHT,SN,WHT

(S.N.A : SERVICE NOT AVAILABLE)

6

1

1

1

1

1

1

4

2

1

1

1

2

9

1

1

1

1

2

1

Q’ty SA/

SNA

1 SNA

Remark

23 SNA D04~D14,D16~D24,

D26~D28

5 SNA D01~D03,D15,D25

4

1

SNA ZD01,ZD03~ZD05

SNA TR10

14 SNA TR01,TR02,TR05~TR09,T

R11~TR17

1

1

SA IC04

SNA IC05

1

1

2

2

1

1

1

1

SNA IC02

SNA PTC1

SA ZNR1

SNA R12

SNA R22

SNA R27

SNA R03,R44

SNA R18,R19

1 SNA R10

19 SNA R04~R06,R11,R13~R15,R

20,R21,R28,R35~R43

2 SNA R01,R02

SNA R31~R34

SNA R23,R24

SNA R26

SNA R45

SNA R25

SNA R29

SNA R30

SNA AR01

SNA C04,C07~C10,C15

SNA C13

SNA C11

SNA C05

SNA C06

SNA C03

SNA C02

SNA C12,C14

SNA C01

SNA XTL1

SNA RY03,RY04

SA RY01,RY02,RY05~RY11

1

1

SNA CN01

SNA CN04

- 31 -

8-2 P.C.B Parts List(continued)

LEVEL Code No.

1-2

1-1

1-1

1-2

1-2

1-1

1-1

1-1

1-1

1-1

1-2

1-2

1-1

1-1

1-1

Description

3711-000879 CONNECTOR-HEADER

3711-000999 CONNECTOR-HEADER

3711-004200 CONNECTOR-HEADER

3711-004201 CONNECTOR-HEADER

DE07-10035A VF DISPLAY

DE09-00499A IC MICOM

DE13-20009A IC

DE26-20144A TRANS L.V

DE30-20016A BUZZER

DE39-60001A WIRE-SO COPPER

DE41-00309A PCB-MAIN

DE60-60012A PIN-EYELET

DE61-90164A HOLDER-DIGITRON

DE68-02628A LABEL-PCB ADHESIVE

DE92-01674A ASSY PCB AUTO

Specification

BOX,3P,1R,2.5mm,STRAIGHT,SN

BOX,5P,1R,2.5mm,STRAIGHT,SN

BOX,4P/7P,1R,2.5MM,STRAIGHT,SN,RED

BOX,6P/9P,1R,2.5MM,STRAIGHT,SN

SVM-07SS10,SEA,-,-,-

TMP87CM14F-CHUN,SMH7178,64 PIN,+5V,-

,-,-,-,-,QFP,TRAY,-,-,-20 ~ +85

KA7533,DIP,-,-,-,-,-

SLV-5574U,120V,60HZ,AC17V/2.7V,-,-,-,-

CBE2220BA,STICK,-,-,-,-,-,-,-

,PI0.6,SN,T,52MM TAPING_WIRE,

RAS-OTR7HV,FR-1,1,-,T1.6,197*197,-,2

ARRAY,-,-

ID2.1,OD2.5,L3.0,SN,BSP,T0.25,

BLK,NYLON#66,-,BLK,MW4370W,-

,MW4370W

-,-,-,-,W10,L30,WHT,-,-,-

-,-,RAS-OTR7HV-04,120V60HZ

(S.N.A : SERVICE NOT AVAILABLE)

Q’ty SA/

SNA

1 SNA CN05

1 SNA CN02

1 SNA CN03

1 SNA CN06

1 SA DSP1

1 SNA IC01

Remark

1 SNA IC03

1 SA LVT1

1 SNA BZ01

19 SNA J01~J19

1 SNA

3 SNA

1 SNA

1 SNA

1 SA

- 32 -

9. Schematic Diagrams

9-1 Schematic Diagrams

( This Document can not be used without Samsung’s authorization )

- 33 -

10. Reference

10-1 Model name standard

Baoad

Classification

Distinguisher

USA CMO

USA RV

USA Junior

USA OTR

EUROPE Epoxy Cavity

EUROPE Ceramic Enamel

EUROPE

Quartz GRILL

M

R

SJ

SM

M

CE

G2

Middle

Classfication

CMO (Countertop MWO)

UTC (Under The

Cabinet)

Browner, Grill

Convection

Sensor

DC MWO

Hospital MWO

Ceramic Enamel

SOLO

CONVECTION

BUILT-IN

Distinguisher

Product

Code

W

U

G

D

H

C

S

E

M

C

B

MW

MU

SOLO

CONVECTION

SOLO

GRILL

SOLO

GRILL

H

V

1

2

1

2

USA UTC

Full Nane

USA CMO(EPOXY CAVITY)

MG USA GRILL

MC

MS

MD

MH

USA CONVECTION

USA CMO SENSOR

USA DC MWO

USA Hospital MWO

ME

RM

RC

RB

USA CMO(CERAMIC ENAMEL)

USA RV SOLO

USA RV CONVECTION

USA RV BUILT-IN

SJ USA Junior MWO

SMH USA OTR SOLO

SMV USA OTR CONVECTION

M1

M2

EUROPE SOLO(EPOXY

CAVITY)

EUROPE GRILL(EPOXY CAVITY)

CE1 EUROPE SOLO(CERAMIC ENAMEL)

CE2 EUROPE GRILL(CERAMIC ENAMEL)

G2 EUROPE Quartz GRILL

EUROPE

Power Grill

EUROPE Convection

EUROPE Fully

Built-In

PG

CK

C

F SOLO

GRILL

W

G

PG

CK

C

FW

FG

POWER GRILL

EUROPE CONVECTION

EUROPE CONVECTION

EUROPE SOLO FULLY BUILT-IN

EUROPE GRILL FULLY BUILT-IN

CONVECTION C FC EUROPE CONVECTION

FULLY BUILT-IN

- 34 -

10-2 Customer inquiry cases and countermeasures

Symptom

Air is evacuated from the oven.

The oven works automatically whenever the power is turned on.

Heating

Cause

The vent of the oven is designed to be placed on the bottom of the product, and air is evacuated from the oven.

It may happen due to power failure or abnormal voltage.

It may happen when the door does not close completely.

In many cases, it may happen when the power level is incorrectly set.

It may happen when the door does not close completely.

It may happen when the oven is out of order.

Countermeasures

In the past, the vent was placed on the back panel of the oven. Since the oven was placed near the wall of a kitchen, the wall behind the oven was discolored. Thus, the vent of a new oven is placed on the bottom of the product, and air is evacuated from the oven.

Connect the power plug three seconds after disconnecting the power plug.

Close the door completely => Press the Cancel button

=> Press the Start button.

Select HIGH by rotating the Cooking Power Control knob.

- KEEP WARM: This function is used to warm the cooked food for a certain time period, not to heat the food.

- MEDIUM/LOW: This function is used to cook the food slowly.

Close the door completely. => Press the Cancel button. => Press the Start button.

Contact the nearest Samsung after-sales service center.

Ground

Turn table occasionally rotates in reverse order.

The oven sometimes beeps.

Ground problem may happen when the oven is placed in a humid area and the over is not grounded.

Ground is not provided by an extended electric outlet.

Turntable has been designed to rotate in either direction since 1994.

The oven beeps every minute unless the food is in the oven after the food is cooked completely.

The oven occasionally beeps during cooking.

If the oven is placed in a humid area, buy an electric wire in a store selling electrical products. (Electric wires for home use are also allowed) Ground the oven through the electric wire.

Buy an electric wire in a store selling electrical products. (Electric wires for home use are also allowed)

Ground the oven through the electric wire.

In the past, the gear of the turntable was easily worn by turning it during cleaning. Now, the turntable of the oven is designed to rotate in both directions to prevent damage during cleaning. (Rotation direction is set when the oven initially operates.)

Open and close the door again. (Beeping sounds indicate that the food is ready to be removed from the oven after cooking is complete.)

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10-2 Customer inquiry cases and countermeasures (Continued)

Symptom

Strange popping sounds are produced while fish is cooked.

Strange smell is produced in the oven.

Error

Accessory

Cause

Since fish is salty and maintains its moisture, it is cooked while making a series of soft popping sounds. (The liquid may come out of the fish when the fish is cooked.)

It may happen when food particles stuck to oven walls or floor.

Food with bones such as fish (e.g. mackerel) and pork

(e.g. pork chops) is cooked while making a series of soft popping sounds. Wrap the food completely so that food particles or spattered oils do not stick to the oven walls or floor.

Countermeasures

Errors are classified into the case which is out of order and the case which is not out of order.

Clean the inside of the oven. => Remove strange smell through the Deodorant button => If the strange smell still remains, place a piece of lemon on the turntable and operate the oven for 5 minutes by pressing the

Deodorant button.(However, the smells produced from the food exposed such as herbal remedies are not removed.)

Clean the inside of the oven. => Remove strange smell through the Deodorant button => If the strange smell still remains, place a piece of lemon on the turntable and operate the oven for 5 minutes by pressing the

Deodorant button. (However, the smells produced from the food exposed such as herbal remedies are not removed.)

Visit the nearest Samsung Service Center or local dealer to buy accessories. Before visiting, check the model name printed on the lower right side of the front panel of the oven.

Number does not appear on the display screen.

It happens when the power saving function is activated.

Since the government recommends the reduction of electricity, the power saving function is performed for number display like that power cord is unplugged when the oven is not used. (Numbers are displayed when another button is pressed or when the door opens.)

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This Service Manual is a property of Samsung Electronics Co.,Ltd.

Any unauthorized use of Manual can be punished under applicable

International and/or domestic law.

© Samsung Electronics Co., Ltd. June 2005

Printed in Korea

Code No. : DE68- 03949A

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