Samsung MW7694W Service Manual Download Page 1

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MICROWAVE OVEN

MW7694W / MW7695G

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

SEM

Summary of Contents for MW7694W

Page 1: ...VICEManual 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 SEM ...

Page 2: ... 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 releas...

Page 3: ...nicians 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 sensi...

Page 4: ...ive terminal of the high voltage capacitor to the oven chassis Use a screwdriver 3 High voltage is maintained within specified limits by close tolerance safety related components and adjustments If the high voltage exceeds the specified limits check each of the special components 1 2 Pretaution Samsung Electronics 1 2 Special Servicing Precautions Continued 1 3 Special High Voltage Precautions PRE...

Page 5: ... SECONDS POWER SOURCE 120V 60HZ AC POWER CONSUMPTION MICROWAVE 1 500W OUTPUT POWER FROM 100W TO 1000W 10 LEVEL POWER IEC 705 TEST PROCEDURE OPERATING FREQUENCY 2 450MHz MAGNETRON OM75P 31 ESS COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 217 8 W x 125 16 H x 1613 32 D NET WEIGHT 38 6 lbs SHIPPING WEIGHT 43 lbs ...

Page 6: ...rent time Start Pause Canel Press to pause oven or correct a mistake Kitchen Timer Sound Button 1 Plate of food 2 Casserole 3 Soup Sauce Sound 0 1 2 3 4 5 6 8 7 9 Start Custom Cook Popcorn Diet Cook Potato Baby Food Frozen Breakfast Frozen Dinner Fresh Vegetable Power Level Kitchen Timer More Less One Minute Help Screen Gentle Cook Clock Auto Reheat Auto Defrost Pause Cancel MW7694W 3 Operating In...

Page 7: ...e back panel of fan motor assembly 6 Take out the fan motor assembly 7 Remove the oven lamp by pulling 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 1 Discharge...

Page 8: ... screwdriver into the gap between Door E and Door C to remove Door C Be careful when handling Door C because it is fragile 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 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 Detach spri...

Page 9: ...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 d...

Page 10: ...reconnecting the FPC connector make sure that the holes on the connector are properly engaged with the hooks on the Plastic Fastener 1 Window display should not be disassembled as its mounting tabs will be broken If repair work is difficult replace with Ass y control panel 2 The membrane key board is attached to the escutcheon base with doublefaced adhesive tape Therefore applying hot air such as ...

Page 11: ...se should read open 1 The low voltage transformer is located on the control circuit board 2 Remove the low voltage transformer from the PCB Ass y and check continuity 3 Normal resistor reading is shown in the table PRECAUTION 1 High voltage is present at the high voltage terminals during any cook cycle 2 It is neither necessary nor advisable to attempt measurement of the high voltage 3 Before touc...

Page 12: ...n 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 switche...

Page 13: ...ir the water again with the thermometer and measure the temperature T2 5 Subtract T1 from T2 This will give you the water temperature rise DT 6 The output power is obtained by the following formula 7 Normal temperature rise for this model is 9 9ûC to 10 5ûC 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 i...

Page 14: ...r of a radiarion preventing device make a repair record for the measured values and keep the data 2 If the radiation leakage is more than 5 mW cm2 after determining that all parts are in good condition functioning properly and the identical parts are replaced as listed in this manual notift that fact to CENTRAL SERVICE CENTER 5 12 2 At least once a year have the microwave energy survey meter check...

Page 15: ...r sensing switch 3 Defective monitor switch NOTE1 4 Shorted HVCapacitor 5 Shorted HVTransformer NOTE2 NOTE 1 All of these switches must be replaced at the same time refer to adjustment instructions Check continuity of power relay contacts and if it has continuity replace power relay also NOTE 2 When HVTransformer is replaced check diode and magnetron also Oven does not accept 1 Key input is not in...

Page 16: ... 1 Loose fan and fan motor Tighten screws of fan motor 2 Loose screws on H V Transformer Tighten screws of H V Transformer 3 Shorted H V Diode Replace H V Diode Turntable motor does not rotate 1 Open or loose wiring of turntable motor Check the wire of turntable motor 2 Defective turntable motor Replace turntable motor Oven stops operation during cooking 1 Open or loose wiring of primary Adjust do...

Page 17: ... 7 Exploded Views and Parts List 7 1 Exploded Views 7 1 M1 M2 M21 M28 M22 M25 M26 M11 M13 M14 M15 M12 M16 M17 M18 M19 M20 M5 M6 M7 M27 M8 M9 M10 B1 B2 B2 B4 B3 M23 C1 C2 C3 C4 C5 C6 C7 M24 D1 D2 D3 D5 D6 D7 D4 D8 D9 M3 M4 ...

Page 18: ...1 120V 2260V 3 42V 60HZ UL923 EARSE 1 M13 2501 001105 C OIL 950nF 2 1KV BK 54x35x80 20 1 M14 DE61 50106A BRACKET HVC SECC T0 8 W31 L125 8 1 M15 DE59 40001A DIODE H V HVR 1X 32B 12 1 M16 DE74 20002A TRAY COOKING GLASS T6 PI360 1 2CUFT NEG 1 M17 DE97 00009A ASSY GUIDE ROLLER MW7896W D16 5 BLK XARAC 1 M18 DE67 60082A COUPLER PPS T5 3XL24 1 BRN 3RD W 1 3 MW7896W 1 M19 DE61 40066A FOOT PP BLK 3RD W 2 M...

Page 19: ...3 26 77 ZPC3 WHT CE945 1 7 4 Control Parts List Ref No Parts No Description Specification Q ty Remarks C 1 DE66 20286A BUTTON PUSH ABS 25Zg 77x29 WHT MW5694W 1 MW7694W C 1 DE66 20286B BUTTON PUSH ABS D GRY MW5695G 1 MW7695G C 2 DE61 70076A SPRING BUTTON HSWR PI0 6 1 C 3 DE72 00022A CONTROL PANEL 1 3CU FT IDEO W107 3 L300 P WHT 1 MW7694W C 3 DE72 00022B CONTROL PANEL MW7695GS XAC D GRY 3RD IDEO 1 M...

Page 20: ... A 2S 4X12 TOOTHED 1 MGT B TCO DE60 10082H SCREW A 2S 4X12 TOOTHED 2 MO FAN DE60 10082H SCREW A 2S 4X12 TOOTHED 1 P C EA DE60 10082H SCREW A 2S 4X12 TOOTHED 5 PN OUT DE60 10082H SCREW A 2S 4X12 TOOTHED 1 S M EA DE60 10088A SCREW TAP PH PH M3 L8 FEFZY PLAIN 1 MGT TCO DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 2 M DRIV DE60 10082J SCREW TAPPING TH 2S 4X8 MSWR3 ZPC YEL WS 1 B HVC ...

Page 21: ...8 P C B Diagrams 8 1 P C B Diagrams Samsung Electronics 8 1 ...

Page 22: ...03 R04 R06 R07 R12 P17 2001 000435 R CARBON 1MOHM 5 1 8W AA TP 1 8X3 2MM 1 R25 P18 2001 000515 R CARBON 220OHM 5 1 8W AA TP 1 8X3 2MM 1 R15 P19 2001 000577 R CARBON 2KOHM 5 1 8W AA TP 1 8X3 2MM 2 R05 R13 P20 2001 000613 R CARBON 3 9KOHM 5 1 8W AA TP 1 8X3 2MM 1 R11 P21 2001 000780 R CARBON 470OHM 5 1 8W AA TP 1 8X3 2MM 3 R09 R29 R30 P22 2001 001107 R CARBON S 220ohm 5 1 2W AA TP 2 4x6 4mm 3 R01 R0...

Page 23: ...DITION DOOR IS OPENED 120V15A PCB PATTERN WARNING NOTE CIRCUIT SHOWN WITH DOOR IS OPENED POSITION NOTE FOR SERVICE REPLACEMENT USE 16 GA 105 C THERMOPLASTIC COVERED WIRE EXCEPT FOR HIGH VOLTAGE LEADS OR AS NOTED ON SPECIAL LEADS POWER MUST BE DISCONNECTED BEFORE SERVICING THIS APPLIANCE BLK BLU BLK R RED RED ORG RED BLK BLU RED ORG ORG BLU BLK MAGNETRON HIGH VOLTAGE DIODE TO CHASSIS FA F HIGH VOLT...

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