Table of Contents
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SERVICE
MICROWAVE OVEN
SAMTRONICS
MICROWAVE OVEN
MB6774W / MB6775G
Browner
Popcorn
One
Minute
Potoato
Diet
+
Cook
Fresh
Frozen
Dinner
Vegetable
Help
Screen
Baby
Custom
Food
Auto
Auto
Defrost
Reheat
Power
1
2
3
Level
Clock
4
5
6
Auto Start
Hold
7
8
9
Timer
More
0
Sound
Less
Pause
Start
Cancel
8. PCB Diagrams
Manual
CONTENTS
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Table of Contents
Related Manuals for Samsung MB6774W
Summary of Contents for Samsung MB6774W
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Page 1: Table Of Contents
MICROWAVE OVEN MB6774W / MB6775G SERVICE Manual CONTENTS MICROWAVE OVEN 1. Precaution 2. Specifications 3. Operating Instructions 4. Disassembly and Reassembly Browner Popcorn Minute Potoato Diet Cook 5. Alignment and Adjustments Fresh Frozen Dinner Vegetable Help Screen Baby Custom Food... -
Page 2: Precaution
CENTRAL SERVICE CENTER 16. Always connect a test instrument's ground lead to the instrument chassis ground before 10. Service technicians should remove their connecting the positive lead; always remove watches while repairing an MWO. the instrument's ground lead last. Samsung Electronics... -
Page 3: Specifications
(Use a screwdriver.) 3. High voltage is maintained within specified limits by close-tolerance, safety-related components and adjustments. If the high voltage exceeds the specified limits, check each of the special components. Fig. 1-1. Discharging the High Voltage Capacitor Samsung Electronics... -
Page 4: Specifications
2. Specifications 2-1 Table of Specifications MODEL MB6774W/MB6775G ITEM TIMER 99 MINUTES 99 SECONDS POWER SOURCE 220V/60HZ, AC POWER CONSUMPTION MICROWAVE : 1,500W HEATER : 1,080W OUTPUT POWER FROM 100W TO 1000W (10 LEVEL POWER)/(IEC-705 TEST PROCEDURE) HEATER : 1000W... -
Page 5: Operating Instructions
Metal Rack Browner Popcorn Minute Potoato Diet Cook Fresh Frozen Vegetable Dinner Help Screen Baby Custom Food Auto Auto Defrost Reheat Power Level Clock Auto Start Hold Timer More Sound Less Pause Start Cancel 260mm 402mm 556mm 444mm Samsung Electronics... -
Page 6: Disassembly And Reassembly
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. Bolts H. V. Trans Samsung Electronics... -
Page 7: Replacement Of Door Assembly
1. Insertion depth of the thin metal plate should be 0.5mm or less. 4-3-4 Removal of Key Door & Spring Remove pin hinge from Door "E" Door "E" Detach spring from Door "E" and key door. Key Door Spring Samsung Electronics... -
Page 8: Replacement Of Fuse/Drive Motor
7. When replacing the drive motor, be sure to remount it in the correct position with the Drive Motor Cover Base Plate coupler. 8. Connect all the leads to the drive motor. 9. Screw the drive motor cover to the base plate with a screw driver. Samsung Electronics... - Page 9 3. When installing new membrane key board, make sure that the surface of escutcheon base is Membrane cleaned sufficiently so that any problems Panel (shorted contacts or uneven surface) can be avoided. Samsung Electronics...
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Page 10: Alignment And Adjustments
5-1 High Voltage Transformer 1. Remove connectors from the transformer terminals Filament Terminals and check continuity. 2. Normal resistance readings are as follows: Primary Terminals MODEL MB6774W/MB6775G Secondary 75.38W ¡ Filament Shows Continuity Primary 1.185W ¡ (Room temperature = 20ûC) -
Page 11: High Voltage Capacitor
Door Open Door Closed procedures. ¥ Primary switch 5. Confirm that the gap between the switch ¥ Monitor switch (COM-NC) housing and the switch actuator is no more than ¥ Door Sensing S/W 0.5mm when door is closed. Samsung Electronics... - Page 12 5. After heating for 2 minutes, measure the water temperature in each beaker. 6. Microwave heat distribution rate can be calculated as follows: Minimum Beaker Temperature Rise Heat Distribution = X 100(%) Maximum Temperature Rise The result should exceed 80%. Cooking Tray Samsung Electronics...
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Page 13: Procedure For Measurement Of Microwave Energy Leakage
; CENTRAL SERVICE CENTER 5-13-2 At least once a year have the microwave energy survey meter checked for accuracy by its manufacturer. Samsung Electronics... -
Page 14: Troubleshooting
H.V.Transformer component test procedure and replace if it is H.V.Capacitor defective. H.V.Diode Magnetron 4. Open or loose wiring of power relay 5. Defective primary latch switch 6. Defective power relay or Ass'y PCB Replace PCB main. Samsung Electronics... - Page 15 Use plastic wrap or cover with a lid. Stir once or twice while cooking foods such as soup, cocoa, or milk. Noise from the turntable motor Noise may result from the motor. Replace turntable motor. when it starts to operate. Samsung Electronics...
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Page 16: Exploded Views And Parts List
D ie Sc re Fr es ta bl Fr oz Di nn A ut D ef st om ro st w er A ut Cl oc St ar H ol Ti m M or us e S ta Samsung Electronics... -
Page 17: Main Parts List
MB6775G M 37 DE74-20002A TRAY-COOKING;GLASS T6 PI360 1.2CUFT NEG M 38 DE92-90189B ASSY-GUIDE ROLLER;D16.5 STD M 39 DE67-60002A COUPLER;PPS 5GR BRN M97G45 M 40 DE74-70038B RACK-WIRE;MSWR10 PI3 D268 H140 MB6774W : Warning : Option Parts :Electrostatically Sensitive Devices Samsung Electronics... -
Page 18: Door Parts List
Description/Specification Q'ty Remarks DE66-20006A BUTTON-PUSH;RESIN-ABS(HR-0370U) P/WHT M9 MB6774W DE66-20006B BUTTON-PUSH;ABS(HR-0370) GRAY MW5575G IDEO MB6775G DE61-70076A SPRING-BUTTON;HSWR PI0.6 DE34-10206T SWITCH-MEMBRANE;PET 220V/60HZ MB6774W(SAM) MB6774W DE34-10206U SWITCH-MEMBRANE;PET 220V/60HZ MB6775GSAM) MB6775G DE72-70005A CONTROL-PANEL;ABS(VH0853) 164G PURE-WHT MB6774W DE72-70005D CONTROL-PANEL;ABS(VH0853) 164G GRAY T2.5 MW MB6775G DE67-40002A WINDOW-DISPLAY;RESIN-ACRYLIC T2.3 M945(I... -
Page 19: Standard Parts List
P/EART DE60-10082A SCREW-A;M4 L12 2S TOOTHED OPANEL DE60-10082A SCREW-A;M4 L12 2S TOOTHED MEM-PN DE61-50279A BRACKET-TCO;STS304 CA/UPP DE60-10088A SCREW-TAP PH;PH M3 L8 FEFZY PLAIN CON-PA DE69-30021C BAG-PP;PE-FILM T0.03 C/BOOK DE02-00029A TAPE-SCOTCHPAR;POLYESTER 3M-893 W50 DE60-10082A SCREW-A;M4 L12 2S TOOTHED C/D-M Samsung Electronics... - Page 20 8. P.C.B Diagrams 8-1 P.C.B Diagrams Samsung Electronics...
- Page 21 IC-MCU;MB89144AP-167 12K DIP 64PIN IC01 DE13-20009A IC;KA7533 DIP IC02 DE26-20144A TRANS-L.V;DN-5574W,CE-5574W 120V 60HZ AC LVT1 DE30-20016A BUZZER;CBE2220BA STICK BUZ1 DE39-60001A WIRE-SO COPPER;PI0.6 SN T 52MM TAPING_WI J1~25 DE60-60012A PIN-EYELET;ID2.1 OD2.5 L3.0 SN BSP T0.25 DE61-90164A HOLDER-DIGITRON;NYLON#66 T1.8 BLK MW4370 Samsung Electronics...
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Page 22: Schematic Diagrams
FOR HIGH VOLTAGE LEADS OR AS NOTED ON SPECIAL LEADS. : P.C.B IN/OUT POINT MAGNETRON HIGH VOLTAGE DIODE TO CHASSIS PRIMARY SWITCH HIGH VOLTAGE CAPACITOR DOOR SENSING SWITCH MONITOR SWITCH BOTTOM CENTER SYMBOL COLOR ORANGE HIGH VOLTAGE WHITE TRANSFORMER BLACK BLUE YELLOW POWER RELAY Samsung Electronics...