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BASIC: SMH9187W MODEL: SMH9187B MODEL CODE: SMH9187B/XAA 1. Precaution 2. Product Specification 3. Disassembly and Reassembly 4. Troubleshooting 5. Exploded Views and Part List 6. PCB Diagrams 7. Wiring Diagrams 8. Schematic Diagrams Refer to the service manual in the GSPN(see rear cover) for the more information. • Contents 1. Precaution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1-1 Safety precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1-2 Special High Voltage Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2-1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2-2 Accessory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2-3 Table of Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3. Disassembly and Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3-1 Disassembly of Assembly Grille and Panel Outer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3-2 Replacement of High Voltage Transformer and HVC and Base bottom . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3-3 Replacement of Magnetron. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3-4 Replacement of Door Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3-5 Replacement of Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3-6 Replacement of Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3-7 Replacement of stirrer motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3-8 Removal of stirrer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3-9 Replacement of Control Circuit Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3-10 Replacement of Cooktop lamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3-11 Replacement of Oven Light. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4-1 Error Code Numbering Rule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4-2 Error Code List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4-3 Electrical Malfunction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5. Exploded Views and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5-1 Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5-2 Main Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 5-3 Door Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 5-4 Control Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 5-5 Standard Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6. PCB Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 6-1 PCB Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 6-2 PCB Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 7. Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 7-1 Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 8. Schematic Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 8-1 Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 1. Precaution 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 ( ) 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. 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. All repairs should be done in accordance with the procedures described in this manual. This product complies with Federal Performance Standard 21 CFR 2. Microwave emission check should be performed to prior to servicing if the oven is operative. 3. If the oven operates with the door open :Instruct the user not to operate the oven and contact the manufacturer and the center for devices and radiological health immediately. 4. Notify the Central Service Center if the microwave leakage exceeds 5 mW/cm2. 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/cm2 ,Make repairs to bring the unit into compliance at no cost to owner and try to determine cause. Instruct owner not to use oven until it has been brought into compliance. CENTRAL SERVICE CENTER 10. Service technicians should remove their watches while repairing an MWO. 11. To avoid any possible radiation hazard,replace parts in accordance with the wiring diagram. Also, use only the exact replacements for the following parts: Primary and secondary interlock switches, interlock monitor switch. 12. If the fuse is blown by the Interlock Monitor Switch: Replace all of the following at the same time: Primary, door sensing switch and power relay, as well as the Interlock Monitor Switch. The correct adjustment of these switches is described elsewhere in this manual. Make sure that the fuse has the correct rating for the particular model being repaired. 1. Precaution 1-2 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 closetolerance, safety-related components and adjustments. If the high voltage exceeds the specified limits, check each of the special components. H . V . Capacitor H . V . Diode Short PRECAUTION There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near these circuits with the oven energized. DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron. PRECAUTION Servicemen should remove their watches whenever working close to or replacing the magnetron. PRECAUTION Never touch any circuit wiring with your hand nor with uninsulated tool during operation. 2. Specifications 2-1 Features Product Features • Professional Design Samsung New OTR with Stainless Steel, it has professional look and the design matches great with other kitchen appliances, so that it provides harmonious kitchen interior and finally completes total kitchen solution. • Turbo vent With 400CFM ventilation power, New OTR can keep the comfortable cooking condition by absorbing smoke and odor from cook-top. Moreover, it provides the silent condition that is equivalent noise level to other OTR with lower ventilation power. The Strongest power without additional noise! That’s the benefit you can feel from New OTR! • Big Interior capacity for convenience With the 1.8 cu.ft capacity, it offers enough space to cook. The big capacity combined with 1,100 watts of output achieves superior cooking results. • Sensor cook Don’t worry about failure of your cooking! New OTR’s sensor technology offers the best dish. Only thing you need to do is just select the cooking menu, and then you will be satisfied with the cooking results by sensor cook. • VFD display With more informative VFD display, the OTR helps you use all the function it has with ease. 2. Specifications 2-2 Accessory Item Description Code No. Q’ty TRAY COOKING DE74-20002A 1 ASSY-GUIDE ROLLER DE97-00368A 1 ASSY-HOOD DAMPER DE92-90242D 1 ASSY-HARD WARE DE92-90505E 1 FILTER AIR DE63-00196A 2 FILTER CHARCOAL DE63-00367D 1 RACK-WIRE DE75-00036B 1 2. Specifications 2-3 Table of Specifications Items Oven Cavity Controls Timer Power Source Power consumption Power Output Oven Cavity Outside Shipping Net/Gross Weight Export Zone Dimensions (W x H x D inches) Basic Model New Model SMH9187W/XAA SMH9187B/XAA 1.8 10 power levels, including defrost 1.8 10 power levels, including defrost 99 minutes, 99seconds 99 minutes, 99seconds 120VAC, 60Hz 120VAC, 60Hz 1650 Watts 1650 Watts 1100 Watts 207/8 x 931/32 x 149/16 1100 Watts 207/8 x 931/32 x 149/16 297/8 x 161/2 x 1515/32 297/8 x 161/2 x 1515/32 333/8 x 1915/16 x 1913/32 333/8 x 1915/16 x 1913/32 51.6Kg / 62.7lbs USA 51.6Kg / 62.7lbs USA 3. Disassembly and Reassembly MAGNETRON, MOTOR ASSEMBLY, VENT BLOWER AND HIGH VOLTAGE TRANSFORMER Oven 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. 3-1 Disassembly of Assembly Grille and Panel Outer Parts Explaination Photo Explaination 1. Disconnect oven power. 2. Remove Grille. 1) Remove 2 screws 2) Slide the Grille to the left, then pull it straght out. Grille 1. Disconnect oven power. 2. Remove Grille. 3. Remove Screw.(7) Panel Outer 4. Remove Screw.(4) 3. Disassembly and Reassembly 3-1 Disassembly of Assembly Grille and Panel Outer Parts Explaination Photo Explaination 5. Remove Screw.(4) 6. Remove Screw.(2) Panel Outer 7. Remove Screw.(2) Explaination Photo Explaination 8. Remove Panel Outer. 10 3. Disassembly and Reassembly 3-2 Replacement of High Voltage Transformer and HVC and Base bottom Parts Explaination Photo Explaination 1. Disconnect Oven Power. 2. Remove Panel Outer. 3. Discharge The High Voltage Capacitor. ATTENTION : W hen discharge must become ground terminal of HVC and metal of around. High voltage capacitor 4. Remove screw.(1) 5. Disconnect the Lead Wire. Base Bottom 1. Remove Screw.(5) 2. Disconnect Lamp Housing. 3. Remove Base bottom. HV Trans 1. Disconnect Oven Power. 2. Remove the Base bottom and Panel Outer. 3. Disassembly the Bracket Duct upper after remove screw. 11 3. Disassembly and Reassembly 3-2 Replacement of High Voltage Transformer and HVC and Base bottom Parts Explaination Photo Explaination 4. Disconnect the Lead Wire. HV Trans 5. Remove screw.(3) 6. Take out the HV Trans. 12 3. Disassembly and Reassembly 3-3 Replacement of Magnetron Parts Explaination Photo Explaination 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. 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 sure that it antenna does not hit any adjacentparts, 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. PRECAUTION During replacement, be certain R.F. anode gasket is in place around anode stub. PERFORM MICROWAVE LEAKAGE TEST 13 3. Disassembly and Reassembly 3-4 Replacement of Door Assembly Parts Removal of Door Assembly Disassembly Photo Explaination 1. Open the Assembly Door by degree 90º 2. Seperate lifting Assembly Door from Set. 90º Removal of Door C 2. Insert flat screwdriver into the gap between Door “A” and Door “C” to remove Door “C”. • B ecareful when handling Door “C” because it is fragile. Removal of Key Door & Spring 3. Detach the spring and key door from Door. 14 3. Disassembly and Reassembly 3-4 Replacement of Door Assembly Removal of Handle 4. Remove 2 screws, then handle is detached from Door “A”. Removal of Door “E” 5. 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. PRECAUTION PERFORM MICROWAVE LEAKAGE TEST 15 3. Disassembly and Reassembly 3-5 Replacement of Fuse Parts Explaination Photo Explaination The fuse is located on the noise filter. 1. Disconnect power and remove grilleand Assembly Control Box. 2. Replace the fuse. 3. When 20A fuse blows out by the operation of interlock monitor switch failure, replace the primary interlock switch, secondary interlock switch, door sensing switch, interlock monitor switch and power relay. 4. When the above four switches operate properly, check if any other part such as the control circuit board, blower motor or high voltage transformer is defective. Fuse Fuse Fuse 3-6 Replacement of Drive Motor Parts Explaination Photo Explaination 1. Disconnect power and remove Base bottom screws(5). 2. Remove Base bottom and disconnect the turntable motor drive. 3. Remove turntable motor screws(1) 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. Drive Motor 16 3. Disassembly and Reassembly 3-7 Replacement of stirrer motor Parts Explaination Photo Explaination 1. Disconnect power and remove Grille screws(3). 2. Remove the bracket duct upper. Stirrer Motor 3. Disconnect the stirrer motor wire. 4. Remove stirrer motor screws(1) and after turn to arrow direction pull the stirrer motor. 17 3. Disassembly and Reassembly 3-8 Removal of stirrer Parts Explaination Photo Explaination The 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. Stirrer 2. Remove the clip and turn the stirrer cover left. 3. Remove stirrer cover and the stirrer will come with it. 18 3. Disassembly and Reassembly 3-9 Replacement of Control Circuit Board Parts Explaination Photo Explaination 1. Disconnect power and remove Grille. 2. Be sure to ground any static electric charge in your body and never touch the control circuit. Removal of Control Box Assembly 3. Remove a screw securing the control box assembly. 4. Disconnect the connectors from the control circuit board. 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. Removal of P.C.B Assembly 19 3. Disassembly and Reassembly 3-10 Replacement of Cooktop lamp When replacing the night light, make sure that you are wearing gloves to avoid injury from the heat of the bulb. Parts Explaination Photo Explaination 1. Unplug the oven or turn off the power at the main power. 2. Remove the bulb cover, and mounting screws. 3. Replace the bulb with a 40 watt appliance bulb. Cooktop Lamp 4. Replace the bulb cover and mounting screws. 5. Turn the power back on at the main power supply. 20 3. Disassembly and Reassembly 3-11 Replacement of Oven Light Parts Explaination Photo Explaination 1. Disconnect Oven power. 2. Remove the Grille Oven Light 3. Remove the bracket Duct upper by remove 1 screw. 4. Replace the bulb with a 40 watt appliance bulb. 21 4. Troubleshooting 4-1 Error Code Numbering Rule 1. ERROR CODE NUMBERING RULE is applied to a microwave oven and an oven.(CMO, OTR, Grill, Convection, Commercial etc.) 2. All sensors and devices have their own number. ex) Gas Sensor = 1, Temp. Sensor = 2, ... 3. Of each device, No.1 and No.2 refer to “Open Error” (not sensed) and “Short Error”, respectively. 4. This numbering rule has been applied to models to have been developed since January, 1, 2005. (But, GE or Customize model are excluded.) DEVICE ERROR CASE 0- Others 1- Open 1- Gas Sensor 2- Short 2- Temp. Sensor • 3- Weight Sensor • 4- Easy/PH Sensor • 5- EEPROM • • • 4-2 Error Code List Error Code -SE- Others (E-0X, Letter) Key Short Error (10 seconds) 22 Solution Page Turn off set and restart. 21 Page 4. Troubleshooting 4-2-1 Key Short Error “- SE -” is displayed. YES Is the key not recognized at all? NO YES Is the key recognized intermittently? NO Is a specific key not recognized? YES NO The membrane is defective. Replace the Control Panel. S/W Error After Power > On, does the symptom continue? NO YES Replace the PCB. Perform the operation again and check if it is working properly. 23 4. Troubleshooting PRECAUTION 1. 2. 3. 4. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT. DISCHARGE THE HIGH VOLTAGE CAPACITOR. 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. 4-3 Electrical Malfunction Oven is dead. (No display and no operation at all.) Open or loose lead wire harness Fuse is OK Open thermal cutout (Magnetron) Check fan motor when thermal cutout is defective. Open low voltage transformer Check Ass’y PCB when L.V.T is defective. Defective Ass’y PCB Shorted lead wire harness Defective primary latch switch (NOTE (NOTE 1) 1) Defective monitor switch (NOTE (NOTE 1) 1) Check adjustment of primary, interlock monitor, power relay, door sensing switch. Shorted H.V.Capacitor Shorted H.V.Transformer (NOTE (NOTE 2) 2) 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 H.V.Transformer is replaced, check diode and magnetron also. Oven does not accept key input (Program) Oven does not accept key input Key input is not in-Sequence Refer to operation procedure. Open or loose connection of membrane key pad to Ass’y PCB Shorted or open membrane panel Timer starts countdown but no microwave Defective Ass’y PCB Replace PCB main. Off-alignment of latch switches 24 Adjust door and latch switches. Open or loose connection of high Check high voltage component according to Oven does not accept key input Open or loose connection of membrane key pad to Ass’y PCB 4. Troubleshooting Shorted or open membrane panel Defective Ass’y PCB Replace PCB main. Timer starts countdown but no microwave oscillation. (No heat while oven lamp and fan motor turn on.) Timer starts countdown but no microwave oscillation Off-alignment of latch switches Adjust door and latch switches. Open or loose connection of high voltage circuit especially magnetron filament circuit (NOTE) Check high voltage component according to component test procedure and replace if it is defective. Defective high voltage components H.V.Transformer H.V. Capacitor H.V.Diode, H.V.Fuse Magnetron Open or loose wiring of power relay Defective primary latch switch Defective power relay or Ass’y PCB Replace PCB main. NOTE: Large contact resistance will bring lower magnetron filament voltage and cause magnetron to lower output and/or intermittent oscillation. Oven can program but timer does not start. Oven can program but timer does not start Oven can program but timer does not start Oven can program but timer does Oven not canstart program but timer output does Microwave not start Microwave output is low is low. Microwave output is low Microwave output is low Microwave output is low Fan motor turns on when plugged in Open or loose wiring of secondary interlock switch Adjust door and interlock switches. Open or looseof wiring of secondary Off-alignment primary interlock interlock switch Adjust door and interlock switches. Open or loose wiring interlock of secondary Defective secondary S/W Off-alignment of primary interlock interlock switch Open or loose wiring of secondary interlock Off-alignment of primary interlock Defectiveswitch secondary interlock S/W Decrease power source voltage (Oven takesinlonger time to cook Off-alignment of primary interlock Defective secondary interlock S/W Open or loose wiring of magnetron Decrease in power source voltage filament Defectivecircuit. secondary interlock S/W (Intermittent oscillation) Open or loose wiring of magnetron Decrease in power source voltage filament Aging of circuit. magnetron (Intermittent Decrease in oscillation) power source voltage Open or loose wiring of magnetron filament circuit. Aging or of loose magnetron Open wiring of magnetron (Intermittent oscillation) filament circuit. (Intermittent oscillation) Aging magnetron Loose of wiring of door sensing switch Adjust door and interlock switches. Fan motor turns on when plugged in. Aging of magnetron Fan motor turns on when plugged in Fan motor turns on when plugged in Fan motor Oven doesturns not on when plugged operate and return in to the plugged Oven does not in mode operate and return to Oven does not operate the plugged Oven does not in mode operate and return to Oven does not the plugged operateinand return to mode Loud buzzing noise the plugged can be heard in mode Loud buzzing noise can be heard Loud buzzing noise can be heard Loud buzzing noise can be heard Turntable motor does not rotate. Adjust door and interlock switches. Consult electrician. food.) Consult electrician. Consult electrician. Consult electrician. Consult electrician. Loose wiring of door sensing switch Consult electrician. Loose wiring of door sensing switch Consult electrician. Loose wiring of door sensing switch Defective Ass’y PCB Consult electrician. Replace PCB main. Defective and return to Ass’y the PCB plugged in mode. Replace PCB main. Defective Ass’y PCB Loose fan and fan motor Defective Ass’y PCB Replace PCB main. Tighten screws of fan motor. Replace PCB main. Loose Loose screws fan and on fanH.V.Transformer motor Tighten screws screws of of fan H.V.Transformer. Tighten motor. Shorted H.V.Diode Loose screws fan and on fanH.V.Transformer motor Replace H.V.Diode. Tighten screws of fan motor. H.V.Transformer. Loose fan and fan motor Loose screws on H.V.Transformer Shorted H.V.Diode Tighten screws of fan motor. Tighten of H.V.Transformer. Replacescrews H.V.Diode. Loose screws H.V.Transformer Open or loose on wiring of Shorted H.V.Diode turntable motor. 25 Tighten of H.V.Transformer. Replacescrews turntable motor. Replace H.V.Diode. Shorted Open or H.V.Diode loose wiring of Defective turntable motor Replace H.V.Diode. Replace turntable motor. Loose wiring of door sensing switch (Intermittent oscillation) on when plugged in Aging of magnetron Fan motor turns Loose wiring of door sensing switch on when plugged in Aging of magnetron Fan motor turns Loose wiring of door sensing switch on when plugged in Oven does not Fan motor turns to operate and return Loose wiring of door Defective Ass’y PCB sensing switch onOven when plugged does not in the plugged Fan motor turns operateinand return to mode Loose wiring of door Defective Ass’y PCB sensing switch onOven when plugged does not in the plugged Loud buzzing noise operate return to can be heard. inand mode Defective Ass’y PCB Oven does not the plugged operateinand return to mode Defective Ass’y PCB the plugged Loose fan and fan motor Oven does not inand mode Loud buzzing noise operate return to Defective PCB Loose fan Ass’y and fan motor can be heard Oven does not the plugged Loose screws on H.V.Transformer Loud buzzing noise operate return to inand mode Defective Ass’y PCB Loose fan and fan motor can be heard the plugged Loose screws on H.V.Transformer Loud buzzing Shorted H.V.Diode in mode noise Loose fan and fan motor can be heard Loose screws on H.V.Transformer Loud buzzing noise Shorted H.V.Diode can be heard Loose screws fan and on fanH.V.Transformer motor Shorted H.V.Diode Turntable motor does not rotate. Loud buzzing noise Open or loose of Loose fan and wiring fan motor can be heard Loose screws on H.V.Transformer Shorted H.V.Diode turntable motor. Loud buzzing noise Turntable motor does Open or loose wiring of can heard notbe rotate. Loose screws on H.V.Transformer turntable motor. Defective turntable motor Shorted H.V.Diode Turntable motor does Open or loose wiring of not rotate. turntable motor. Defective turntable motor Shorted H.V.Diode Turntable motor does Open or loose wiring of not rotate. turntable motor. Defective turntable motor Turntable motor does Open wiring of not rotate. Open or or loose loose wiring of primary Defective turntable motor turntable motor. interlock switch Turntable motor does Oven stops operation during cooking. Oven stops operation Open or loose wiring Open or loose wiring of of primary not rotate. during cooking turntable motor. Defective turntable motor Turntable motor does interlock switch Operation of thermal cutout (Magnetron) Oven stops operation Open or loose wiring of primary not rotate. during cooking Defective turntable motor interlock switch Operation of thermal cutout (Magnetron) Oven stops operation Open or loose wiring of primary during cooking interlock switch Operation of thermal cutout (Magnetron) Oven stops operation Open or loose wiring of primary during cooking Metallic ware or cooking dishes Operation of thermal cutout (Magnetron) interlock switch Oven stops operation touching on thewiring oven of wall Open or loose primary Sparks Metallic ware or cooking dishes during cooking interlock switch Operation ofthe thermal (Magnetron) Sparks. Oven stops operation touching ware on oven cutout wall Ceramic trimmed with gold or Sparks Metallic ware or cooking during cooking silver powder also causesdishes sparks 4. Troubleshooting Sparks Sparks Uneven cooking Sparks Uneven cooking Sparks Uneven cooking Uneven cooking. Uneven cooking Uneven cooking Uneven cooking Noise from the turntable motor when Noiseto from the it starts operate. turntable motor when Noiseto from the it starts operate. turntable motor when Noiseto from the it starts operate. turntable motor Noise from thewhen turntable it starts operate. Noiseto from the turntable motor when Noiseto from the it starts operate. turntable motor when it starts to operate. Operation ofthe thermal (Magnetron) touching ware on oven cutout wall Ceramic trimmed with gold or Metallic ware or cooking silver powder also causesdishes sparks touching ware on thetrimmed oven wall Ceramic with gold or silver powder also causesdishes sparks Metallic ware or cooking Ceramic ware trimmed with golddue or Uneven intensity of microwave touching on the oven wall silver powder also causesdishes sparks Metallic ware or cooking to its characteristics Uneven intensity of microwave touching on thetrimmed oven wall Ceramic ware with golddue or to its characteristics silver powder also causes sparks Uneven intensity of microwave Ceramic ware trimmed with golddue or to its characteristics silver powder also causes sparks Uneven intensity of microwave due to its characteristics Uneven intensity of microwave due to its characteristics Uneven intensity of microwave due to its characteristics Noise may result from the motor Noise may result from the motor Noise may result from the motor Consult electrician. Consult electrician. Consult electrician. Consult Replaceelectrician. PCB main. Consult Replaceelectrician. PCB main. Replace PCB main. Replace PCB main. Tighten screws of fan motor. Replace PCB main. Tighten screws of fan motor. Tighten screws of H.V.Transformer. Replace PCB main. Tighten screws of fan motor. Tighten screws of H.V.Transformer. Replace H.V.Diode. Tighten screws of fan motor. Tighten screws of H.V.Transformer. Replace H.V.Diode. Tighten motor. Tighten screws screws of of fan H.V.Transformer. Replace H.V.Diode. Tighten of fan motor. Replacescrews turntable motor. Tighten of H.V.Transformer. Replacescrews H.V.Diode. Replace turntable motor. Tighten screws of H.V.Transformer. Replace H.V.Diode. Replace turntable motor. Replace H.V.Diode. Replace turntable motor. Replace turntable motor. Adjust door and latch switches. Replace turntable motor. Adjust door and latch switches. Adjust door and latch switches. Adjust door and latch switches. Adjust door and latch switches. Inform the customer: Do not use any type of cookware with trimming Adjust door andmetallic latch switches. Inform the customer: Do not use any type of cookware with metallic trimming Inform the customer: Do not use any type of cookware with metallic trimming Inform the customer: Do not use any type of cookware with metallic trimming Inform the customer: Do not use any type of Wrap thinner of the food with aluminum foil. cookware withparts metallic trimming Inform the customer: Do not use any type of Wrap thinner of the food with aluminum foil. cookware withparts metallic trimming se plastic wrap or cover with a lid. Wrap thinner parts of the food with aluminum foil. se plastic wrap or cover with a lid. Stir once or twice while cooking foods such as Wrap thinner parts of the food with aluminum foil. soup, cocoa, or or milk. se plastic wrap cover with a lid. Stir once or twice while cooking foods such as Wrap thinner parts of thewith fooda with soup, cocoa, or milk. se plastic wrap or cover lid. aluminum foil. Stir once or twice while cooking foods such as Wrap parts of the food with aluminum foil. soup, thinner cocoa, or milk. se wrap or while covercooking with a lid. Stirplastic once or twice foods such as soup, cocoa, or milk. Replace turntable motor. se plastic wrap or cover with a lid. Stir once or twice while cooking foods such as Replace turntable motor. soup, cocoa, or milk. Stir once or twice while cooking foods such as Replace turntable motor. soup, cocoa, or milk. may it result from the motorNoise when starts to motor operate. Replace turntable motor. Noise may result from the motor Replace turntable motor. Noise may result from the motor Replace turntable motor. 26 5. Exploded Views and Parts List 5-1 Exploded Views P090 M060 P088 P087 U008 P007 P089 P091 M061 P012 T017 P013 T001 T030 P014 P032 M015 P097 M068 P024 P025 P034 P039 M036 P124 P015 P016 P122 P030 M024 M001 M050 W002 U003 M040 P001 M206 P086 T036 M042 T037 M039 M041 M017 M059 C081 M087 M034 H018 M059 M036 U004 U003 M023 M049 P059 U007 M035 P121 M029 B018 B006 M038 B001 U005 U012 P123 P122 B002 B001 U001 M048 27 M155 B013 P109 M021 5. Exploded Views and Parts List 5-2 Main Parts List (S.N.A : SERVICE NOT AVAILABLE) No. Code No. Description Specification Q’ty SA/SNA Remark B001 3405-001034 SWITCH-MICRO 125/250VAC,16A,200GF,SPST-N 2 SA - B002 3405-001033 SWITCH-MICRO 125/250VAC 16A,200GF,SPSTNC 1 SA - B006 DE66-00168A LATCH-BODY MODULAR-2,PP,-,-,-,-,- 1 SA - B013 DE66-90106B LEVER-SWITCH LOWER PP,T1.4,-,-,2.0g,OTR 1 SA - B018 DE96-00414A ASSY BODY LATCH RVM-1625BJ,- 1 SA - C081 DE66-20095B BUTTON-LOCK -,-,OTR5,-,-,TB53) 1 SA - H018 DE31-90051A BLADE-FAN P.P,T,D130,-,-,-,- 1 SA - M001 DE64-00754J PANEL-OUTER MAYTAG2.0,SECC,T0.4,-,-,-,BL 1 SA - M015 DE96-00218A ASSY-POWER CORD OTR9,120V60HZ,GE,SJT3/14 1 SA - M017 DE96-00400B ASSY NOISE FILTER SN-UF12B,250V20A,OTR10 1 SA - M021 DE97-00365C ASSY-COVER MOTOR SMH7175/SMH7178,ASSY-NO 1 SA - M023 DE31-00044B MOTOR FAN SMF-U4205A,-,-,-,-,120V/60HZ,2 1 SA - M024 DE31-00029C MOTOR VENTILATION SMV-460UA1-AL,-,120V,6 1 SA - M029 DE47-20007A THERMOSTAT PW-2N(160/60)187Z,250V7.5A,16 1 SA MGT M034 DE67-00179A COUPLER SMH7175,SPS,BRN,-,-,- 1 SA - M035 OM75P(10)ESGN ASSY-MGT 1 SA - M036 4713-001013 LAMP-INCANDESCENT 130V,-,40W,ORG,E17/20, 1 SA - M036 4713-001013 LAMP-INCANDESCENT 130V,-,40W,ORG,E17/20, 2 SA - M038 DE26-00126A TRANS H.V SHV-U1870C,120V,60HZ,2480/2240 1 SA - M039 2501-001011 C-OIL 910nF,2100V,BK,54x35x75mm,20mm 1 SA - M040 DE61-00115A BRACKET-HVC SMH7175,SECC,T0.6,-,-,-,- 1 SA - M041 DE91-70063D ASSY-HVD HV03-12,MWO-GE,RED 1 SA - M042 DE59-00002A DIODE-H.V 2CL4512H,450mA, 13KV,MWO ALL, 1 SA - M048 DE61-00905A BASE-PLATE MAYTAG2.0,SECC,T0.6,-,-,-,- 1 SA - M049 DE31-10172A MOTOR-SYNCHRONOUS M2HJ24Z709,ST-16F,21V, 1 SA TURNTABLE M050 DE31-10173A MOTOR-SYNCHRONOUS M2HJ29A709,ST-16F,21V, 1 SA STIRRER M059 DE61-00375A HOLDER-RACK OTR-1.5CUFT,PP,-,-,-,-,- 4 SA - M060 DE92-90505E ASSY-HARD WARE SMH7175,-,-,- 1 SA - M061 DE63-00367D FILTER-CHARCOAL MODULAR-2,AL,CARBON,T9,W 1 SA - M068 DE64-02067A GRILLE CYMA,PC,-,-,-,-,-,- 1 SA - M087 DE71-60121A COVER-STIRRER -,PP,T2.0,W7,L198,-,85G,- 1 SA - M155 DE97-00677A ASSY-BASE PLATE AMV5206,-,BASE-PLATE T0. 1 SA - M206 DE96-00269A ASSY-HVC SMH7175,0.91UF HVC 1 SA - P001 DE97-00367A ASSY-STIRRER SMH7175,H/STIRRER+B/STIRRER 1 SA - P007 DE70-00561A PLATE-MOUNTING GE 1.6 NEW APPEARANCE,GI, 1 SA - P012 DE92-90242D ASSY-HOOD DAMPER JVM-1870,JVM250BL OTR4, 1 SA - P013 DE71-60051B COVER-DAMPER JVM-1870,-,0.22,68,248.4,-, 1 SNA - P014 DE72-40022A DAMPER-MAIN -,SECC,-,W28,L650,OTR4,-,T0. 1 SNA - P015 DE97-00411A ASSY-BKT DUCT UPPER SMH7175BC,BKT-DUCT U 1 SA - P016 DE61-00410A BRACKET-DUCT UPPER SMH7175,SECC,T0.5,W20 1 SA - P024 DE32-60011A SENSOR-GAS ST-MWO,-,-,-,-,-,- 1 SA - P025 DE61-90111A HOLDER-SENSOR -,POM(DURACON-M90-02),-,-, 1 SA - P030 DE59-50002A CAPACITOR-MOTOR SH-M 10UF,220V10UF,-,DMB 1 SA - P032 DE92-90508A ASSY-HOLDER NUT OTR6,-,-,-,-,- 1 SA - 28 5. Exploded Views and Parts List 5-2 Main Parts List (Continued) (S.N.A : SERVICE NOT AVAILABLE) No. Code No. Description Specification Q’ty SA/SNA Remark SMH7175,SENSOR+HALOGEN,- 1 SA - P034 DE97-00366A ASSY-DUCT UPPER P036 DE39-40678D WIRE HARNESS-S SMH7185WG/XAA,-,-,-,-,-,- 1 SNA - P039 DE67-00168A DUCT-UPPER SMH7175,PP,T2.0,BLK,-,-,- 1 SA - P059 DE63-00419A COVER-FRONT MAYTAG2.0,SECC,T0.6,-,-,-,MA 1 SA - P086 DE61-01008A BRACKET-BARRIER MHC4/5,SECC,0.5,-,-,-,- 1 SA - P087 DE60-10111A SCREW-LAG -,-,-,-,MSWR,W1/4X50,-,-,-,- 1 SNA - P088 DE60-20022A BOLT-TOGGLE MSWR,W3/16X75,-,-,-,-,-,-,- 3 SNA - P089 DE60-20066A BOLT-FLAT UNF1/4,L110,MSWR10,-,-,OTR6,-, 3 SNA - P090 DE60-30022A NUT-TOGGLE SBC1,ZPC2,WHT,-,-,-,-,-,- 3 SNA - P091 DE63-10011A GROMMET -,MS,-,-,-,DACB-16,-,-,- 1 SNA - P097 DE97-00371A ASSY-DUCT UPPER(SUB) SMH7175,D/UPPER+GAS 1 SA - P109 DE63-00141A COVER-MOTOR SMH7175,PP(FB53),T2.5,-,-,-, 1 SA - P121 DE61-00411B BRACKET-DUCT REAR NEW WAVE / MT 2.0,SECC 1 SA - P122 DE47-20059A THERMOSTAT PW-2N(8XV),125V15A,V,120/0,23 1 SA - P122 DE47-20059A THERMOSTAT PW-2N(8XV),125V15A,V,120/0,23 1 SA - P123 DE47-20034A THERMOSTAT 40/70,M5,-,-,-,-,-,- 1 SA - P124 DE60-30063A NUT-MOUNTING -,M6.3,S10C,ZNC,YEL,-,-,-,- 2 SA - T001 DE74-20002A TRAY-COOKING GLASS,T6,-,- 1 SA - T017 DE97-00368A ASSY-GUIDE ROLLER SMH7175,SPS,G/ROLLER+R 1 SA - T030 DE75-00036B RACK-WIRE SMH7175,SNCR,-,W315,-,-,-,D4 1 SA - T036 DE31-00023A BLADE-STIRRER SMH7175,ALP1050,-,-,PI82,T 1 SNA - T037 DE61-00505A HOLDER-STIRRER SMH7175,SPS,-,-,-,-,- 1 SNA - U001 DE97-00675A ASSY-BASE BOTTOM SMH7174BE,BLK,-,- 1 SA - U003 DE47-00006A HOLDER-LAMP 250V,75W,250X187 2POLE,OTR 1 SA - U003 DE47-00006A HOLDER-LAMP 250V,75W,250X187 2POLE,OTR 2 SA - U004 DE61-00407A BRACKET-BOTTOM LAMP SMH7175,SECC,T0.4,-, 1 SA - U005 DE64-00911A GLASS-COOKTOP LAMP SMH7175,TEMP-GLASS,T2 1 SA - U007 DE61-00406F BASE-BOTTOM MAYTAG2.0,SECC,T0.4,-,-,BLK, 1 SA - U008 DE63-00196A FILTER-AIR SMH7175,AL-MESH,T2.0,W150,L34 2 SA - U012 DE63-00137B COVER-GLASS COOKTOP SMH7175,SECC,T0.5,W9 1 SA - W002 DE96-00533F ASSY WIRE HARNESS-A SMH9187,120V/60HZ 1 SNA - 29 5. Exploded Views and Parts List 5-3 Door Parts List D005 D004 D002 D006 D003 D011 D020 D026 D007 D019 D049 D059 (S.N.A : SERVICE NOT AVAILABLE) No. Code No. Description Specification Q’ty SA/SNA Remark D002 DE64-02065A DOOR-A CYMA,PC,-,-,-,-,-,- 1 SA - D003 DE64-02231A SCREEN-DOOR SMH9187,REINFORCE GLASS,T3.2 1 SA - D004 DE94-01470B ASSY DOOR-E SMH7175,-,COATING 1 SA - D005 DE01-00127A FILM-DOOR JVM-1860,POLYESTER,-,L479,T0.0 1 SA - D006 DE64-00759A DOOR-C SMH7175,PP,T1.5,-,-,-,BLK,- 1 SA - D007 DE61-00048A SPRING-KEY BLUING,HSWR,PI1.95,D8.75,L43 1 SA - D011 DE64-01308A DOOR-KEY MODULAR-2,POM,-,-,-,-,BLK,- 1 SA - D019 DE64-02068A HANDLE-DOOR CYMA,PC,-,-,-,-,-,- 1 SNA - D020 DE94-01998A ASSY HANDLE SMH9187,PC,BLACK,- 1 SA - D026 DE63-00526A COVER-HANDLE CYMA,PC,-,-,-,-,-,-,- 1 SNA - D049 DE94-01997A ASSY DOOR SMH9187,PC,BLACK,- 1 SA - D059 DE64-02228A BADGE-LOGO SMH9187,AL1070 H16,T1.3,W10,L 1 SNA - 30 5. Exploded Views and Parts List 5-4 Control Parts List P156 C001 P157 C009 C082 C005 C004 (S.N.A : SERVICE NOT AVAILABLE) No. Code No. Description Specification Q’ty SA/SNA Remark C001 DE94-02001A ASSY CONTROL PANEL SMH9187,BLACK,PC,- 1 SNA - C004 DE34-00330A SWITCH MEMBRANE SMH9187B,-,-,PET,-,120V/ 1 SA - C005 DE64-02066A CONTROL-PANEL CYMA,PC,-,-,-,-,-,- 1 SA - C009 DE64-02086A WINDOW-DISPLAY CYMA,SAN,-,-,-,-,-,- 1 SA - C082 DE94-01999A ASSY CONTROL BOX SMH9187,120V60HZ,BLACK, 1 SNA - P156 DE61-01045A BRACKET-CONTROL PANEL CYMA,SECC,T0.4,-,- 1 SNA - P157 DE94-02002A ASSY BRACKET C/PANEL SMH9187,SECC,T0.4,- 1 SA - 31 5. Exploded Views and Parts List 5-5 Standard Parts List (S.N.A : SERVICE NOT AVAILABLE) Level Code No. Description 1-1 6002-000643 SCREW-TAPPING 1-1 6002-001173 1-1 6003-001568 1-1 1-1 Specification Q’ty SA/SNA Remark TH,+,2S,M4,L10,ZPC(YEL),SW 2 SNA C.FRONT+C.UPPER,CVT FRONT+B. PLATE SCREW-TAPPING FH,+,2S,M4,L12,ZPC(BLK),MS 8 SNA GRILLE,O/PANEL SCREW-TAPTITE FH,TORX,-,B-TITE,M4,L14,NI 2 SNA BODY LATCH 6006-001170 SCREW-ASSY TAPP WS,TH,+,M4,L10,ZPC(YEL) 2 SA N.FILTER E.& BKT.HVC,P.CORD DE60-10045A SCREW-TAP PH -,-,FEFZY,-,PH,M3,-,L6,-,- 2 SA MGT-TCO 1-1 DE60-10051A SCREW-TAP PH -,-,MSWR,-,PH,M4,-,L6,-,- 2 SA STIRRER MOTOR,TURNTABLE MOTOR 1-1 DE60-10062A SCREW-TAP TH -,-,FEFZB,-,TH,M4,-,L12,-,- 3 SNA 1-1 DE60-10067A SCREW-TAP TH -,-,FEFZB,2-SLOT,TH,M4,-,L8 9 SA 1-1 DE60-10080A SCREW-WASHER -,-,-,-,M5,L12,-,2S,-,- 3 SA HVT BRACKET BARRIER,BRACKET D/ UPPER,CONTROL BOX BASE BOTTOM,P.OUTER+V. MOTOR,PANEL OUTER 1-1 DE60-10082I SCREW-A -,-,-,-,2S-4X10,FEFZY,-,-,-,- 16 SA B.PLATE & CVT.BACK,BKT DUCT REAR,DUCT UPPER,FAN MOTOR,MOUNTING PLATE,PANEL OUTER,VENT-MOTOR 1-1 DE60-30015A NUT-FLANGE M5,P0.8,MSWR10,FEFZY,-,-,-,-, 4 SA MGT 1-2 DE60-10111A SCREW-LAG -,-,-,-,MSWR,W1/4X50,-,-,-,- 1 SNA - 1-2 DE60-20022A BOLT-TOGGLE MSWR,W3/16X75,-,-,-,-,-,-,- 3 SNA - 1-2 DE60-20066A BOLT-FLAT UNF1/4,L110,MSWR10,-,-,OTR6,-, 3 SNA - 1-2 DE60-30022A NUT-TOGGLE SBC1,ZPC2,WHT,-,-,-,-,-,- 3 SNA - 1-1 DE92-90508A ASSY-HOLDER NUT OTR6,-,-,-,-,- 1 SA - 1-2 DE60-10072A SCREW-TAP TH -,-,FEFZY,2-SLOT,TH,M4,-,L1 2 SNA HANDLE+DOOR E 1-2 6002-000630 SCREW-TAPPING PH,+,2S,M3,L8,ZPC(YEL),SWR 3 SNA PCB 1-2 6006-001170 SCREW-ASSY TAPP WS,TH,+,M4,L10,ZPC(YEL) 1 SA ASSY DIODE 1-2 6002-001004 SCREW-TAPPING TH,+,2,M4,L30,ZPC(YEL),SWR 2 SA - 1-2 DE60-10082I SCREW-A -,-,-,-,2S-4X10,FEFZY,-,-,-,- 1 SA N/FILTER SCREW 1-3 DE60-30063A NUT-MOUNTING -,M6.3,S10C,ZNC,YEL,-,-,-,- 2 SA - 1-2 DE60-10067A SCREW-TAP TH -,-,FEFZB,2-SLOT,TH,M4,-,L8 1 SA - 1-2 DE60-10045A SCREW-TAP PH -,-,FEFZY,-,PH,M3,-,L6,-,- 1 SA BT-TCO 32 6. PCB Diagrams 6-1 PCB Diagrams (This Document can not be used without Samsung’s authorization) Parts No. Number CN201 CN202 CN301 CN401 CN601 RY201 RY202 RY203 RY204 RY205 RY206 RY207 RY209 1 2 3 4 5 6 7 9 9 10 11 12 13 A Terminal for connecting with SMPS Power Supply A Terminal for connecting with T/T and Vent A Terminal for connecting with Gas-Sensor A Terminal for connecting with Door A Terminal for connecting with Connector Main Relay Inrush Relay Power-High Relay Power-Low Relay Night Relay Bright Relay Louver Relay Vent-High Relay Part Name A Terminal for Connecting with Inrush Relay, Lamp, Louver and SMPS Power Supply A Terminal for Connecting with T/T, Vent and SMPS Power supply A Terminal for Detecting Gas-Sensor and SMPS Power supply A Terminal for Connecting Door and SMPS Power supply A Terminal for Connecting with Connector and SMPS Power Supply Power Supply Relay Inrush Electric Current Decrease Device MWO Control Relay (Power High) MWO Control Relay (Power Low) Lamp Control Relay Lamp Control Relay Louver Control Relay Vent Control Relay (Vent high) Function and Rule 33 6. PCB Diagrams 6-2 PCB Diagrams (This Document can not be used without Samsung’s authorization) 34 7. Wiring Diagrams 7-1 Wiring Diagrams (This Document can not be used without Samsung’s authorization) 35 7. Wiring Diagrams 7-1 Wiring Diagrams (This Document can not be used without Samsung’s authorization) 36 8. Schematic Diagrams 8-1 Schematic Diagrams (This Document can not be used without Samsung’s authorization) D103 D102 D101 1N4007 1N4007 1N4007 1N4007 PC102 PC817 3 4 R401 10K 2K R109 R108 20K +5V INTERRUPT D104 1 2 C402 100nF +5V C102 22uF R402 2K 2K C103 1nF C104 1nF POWER-L T-TABLE BRIGHT NIGHT VT-LOW (VT-HIGH) LOUVER 1 2 3 4 MAIN INRUSH POWER-H 7 8 1 2 POWER SUPPLY R101 100K R102 100 B S8 E S5 S7 IC102 TNY276P S6 D D105 1N4007 4 5 6 INRUSH POWER-H POWER-L DOOR R403 D203 MM4148 D202 1N4148M D201 1N4148M TR401 KRC246M +12V NIGHT BRIGHT LOUVER (VT-HIGH) T-TABLE MAIN ST101 ST-SM3GV C105 100nF +12V 10 6 8 9 7 11 4 3 D106 UF4007 D107 UF4007 D108 UF4007 D109 SB140 PC101 PC817 1 2 +12V C106 470uF C109 47uF C110 470uF R104 330 R105 1K BZ C201 100nF TR209 KRC246M F1 L102 3.9uH F2 C107 470uF P-R-L +5V C108 220uF C114 10uF R111 2K ZD101 UZ5.1BSB -24V +5V DGND IC103 7033P DGND +5V R110 2K C111 100nF RESET CN402 SMW250-03V_WHT 2 3 1 +5V INT R303 200K R301 26.1K +5V LOUVER CIRCUIT 3 1 4 2 LOW-R CB-R GAS SENSOR CIRCUIT CN301 SMW250-04V_RED TT-R CN-R LV-R (HIGH-R) P-R-H I-R M-R TR210 KRC246M D214 1N4148M D213 1N4148M D212 1N4148M BZ-S BZ-N BZ-L ZD102 MTZJ4.3B TR501 KRC246M TR208 KRC246M C202 10uF TR504 KRC246M TR203 KRC246M R501 2K TR207 KRC246M R201 100 TR204 KRA226-AT +5V TR202 KRC246M TR503 KRC246M R503 470 R103 1K TR206 KRC246M TR205 KRC246M D211 1T4 TR201 KRC246M TR502 KRC246M R502 2K BZ501 CBE2220BA L101 1mH C101 22uF INT C401 100nF RY204 DU12D1-1P RY203 DU12D1-1P RY202 G5T-1A-12VDC RY205 G5T-1A-12VDC D204 MM4148 D205 MM4148 D206 MM4148 D207 MM4148 D208 MM4148 D209 MM4148 VENT VT-LOW TR211 KRA226-AT +5V R202 470 TT-R RESET BZ BZ-L BZ-N BZ-S TCO DOOR P-R-L P-R-H I-R CN-R CB-R 2K 2K R306 100K LV-IN2 LV-IN1 XTL101 8MHz C112 100nF +5V R409 VEE IC301 KIA75S358 VCC +12V R408 R407 470 +5V Vm Ladder-2 Ladder-1 LOW-R VENT M-R LV-R (HIGH-R) C113 1nF R406 470 +5V +5V R302 19.1K R304 100K 5 VDD 30 VAREF 64 VDD-1 1 VSS 4 TEST 23 AVSS XOUT XIN 20 INT0 8 RESET 2 3 11 PDO4 28 29 32 12 13 14 15 16 17 18 19 21 22 26 27 7 9 10 24 R305 2K C301 10uF -24V F1 F2 VFD-S3 VFD-S2 VFD-S1 8 P9 7 P2 6 P8 5 P7 4 P6 NP-1 20 NP-2 21 NP-3 22 NP-4 23 32 33 F21 F22 VFD-S4 9 P11 1 2 F11 F12 VFD-S2 VFD-S5 VFD-S1 VFD-S3 VFD-S6 11 P1 10 P12 VFD-S13 VFD-S11 VFD-S10 VFD-S15 VFD-S14 VFD-S13 VFD-S12 VFD-S11 24 1G 19 P14 18 P10 17 P5 16 P3 15 P15 14 P4 VFD-S12 VFD-S14 VFD-S16 VFD-S15 VFD-G2 25 2G VFD-S16 1N4148M D607 3 27 4G 6 26 3G Auto/Time VFD-G3 LV-IN1 5 DEFROST 28 5G TIME VFD-G4 4 COOK1,2 VFD-G1 3 0 29 6G 2 9 VFD-G5 1 8 #7 OPTION #6 OPTION #5 #4 OPTION #3 OPTION OPTION #1 #2 OPTION OFF START CLEAR TIMER 30SEC ADD HELP ON/OFF OPTION REMINDER LEVEL START DELAYED ON/OFF TIMED BEVERAGE POPCORN TIMED T-TABLE POWER CLOCK night/off bright/ LIGHT TIMED AM/PM VENT hi/lo/off REHEAT CN601 12516HS-16 16 15 14 13 12 11 10 7 VFD-G2 2K 2K 2K 2K 2K 2K 30 7G R607 R606 R605 R604 R603 R602 VFD-G6 KEY-2 KEY-3 KEY-4 KEY-5 KEY-6 KEY-7 1N4148M D608 VFD-G1 VFD-S9 VFD-S4 VFD-S5 VFD-S7 1N4148M D606 4 VFD-S8 1N4148M D605 5 VFD-S6 1N4148M D604 6 VFD-S7 1N4148M D603 7 13 P13 1N4148M D602 8 12 P16 1N4148M D601 9 VFD-S9 2K VFD-S8 R601 VFD-S10 KEY-1 22K AR601 VFD-G7 VFD-G3 VFD-G5 VFD-G4 VFD-G7 VFD-G6 Vs KEY-1 KEY-2 KEY-3 KEY-4 KEY-5 KEY-6 KEY-7 25 39 38 37 36 35 34 33 Vs LV-IN2 C302 100nF 6 63 56 57 58 59 60 61 62 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 VKK 31 ZD301 UZ5.6BSB 2 1N4148M D609 DSP101 SVM-07SS10 R106 51K R107 51K R405 2K PTC201 270M D210 1T4 RY206 G5T-1A-12VDC RY207 G5T-1A-12VDC RY208 G5T-1A-12VDC RY201 G5T-1A-12VDC RY209 G5T-1A-12VDC PT201 TLP-560J IC101 TMP86CM72FG-CHUN PTC101 390M ZNR101 10D471 +12V +5V R404 470 N L1 N 4 3 1 5 L202 72uH R203 1K R204 3.3K 1 37 2 CN401 SMW250-05V_WHT 1 CN201 SMW250-09AV_RED 3 5 7 9 1 VT-C L1-1 R205 470K C203 100nF CN202 SMW250-07AV_RED 3 5 7 L1-1 VT-C T835-600B TAC201 TCO L1 GSPN (Global Service Partner Network) Contry Web Site North America service.samsungportal.com Latin America latin.samsungportal.com CIS cis.samsungportal.com Europe europe.samsungportal.com China china.samsungportal.com Asia asia.samsungportal.com Mideast & Africa mea.samsungportal.com ©Samsung Electronics Co., Ltd. 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