Samsung G639C Service Manual Download Page 1

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MICROWAVE OVEN

G639C

SERVICE

Manual

MICROWAVE OVEN

CONTENTS

GRILL

400

560

800W

120

240

1. Precaution

2. Statements

3. Operating Instructions

4. Disassembly and Reassembly

5. Alignment and Adjustments

6. Troubleshooting

7. Exploded Views and Parts List

8. Wiring Diagrams

SEF

Summary of Contents for G639C

Page 1: ...CONTENTS GRILL 400 560 800W 120 240 0 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 1 Precaution 2 Statements 3 Operating Instructions 4 Disassembly and Reassembly 5 Alignment and Adjustments 6 Troubleshooting 7 Exploded Views and Parts List 8 Wiring Diagrams SEF ...

Page 2: ...hes 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 Alteratio...

Page 3: ...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 1 2 Pretaution Samsung Electronics 1 2 Special Servicing Precautions Continued 1 3 Special High Voltage Precautions Fig 1 1 Discharging the H...

Page 4: ...N MICROWAVE 1 350W GRILL 1 000W OUTPUT POWER FROM 120W TO 800W 9 LEVEL POWER IEC 705 TEST PROCEDURE OPERATING FREQUENCY 2450MHz TIMER 60 MINUTES COOLING METHOD AIR COOLING MAGNETRON OM75SH 31 ESST OUTSIDE DIMENSIONS 489 W x 365 D x 275 H mm OVEN CAVITY DIMENSIONS 306 W x 322 D x181 H mm SHIPPING WEIGHT APPROX 16 5 Kg ...

Page 5: ...3 1 Samsung Electronics 3 Operating Instructions 3 1 Control Panel G639C 400 560 800W 120 240 0 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 DEFROST INSTANT COOK ...

Page 6: ...evel to 100 maximum by turning COOKING POWER CONTROL knob 3 Set the time to 4 to 5 minutes by turing TIMER knob Important If any problem is experienced in the operation of the oven please refer to the section on page 4 what to do if you are in doubt or have a problem Operating Instruction 3 3 Checking That Your Oven is Operating Correctly 3 2 Features External Views Door VentilationHoles Heater Li...

Page 7: ... LOW 15 120W GRILL 1000W 3 5 Adjusting the Cooking Time During Cooking Stopping the Cooking Adding Extra Time To stop the cooking Press Temporarily Open Door To resume cooking close the door Completely Turn the TIMER knob to O Simply move the timer knob to any increased setting that you require 3 6 Manual Defrosting Food 800W 400 560 120 240 1 Place the food in the oven and close the door 2 Turn t...

Page 8: ...r H V Trans Screws 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 Never touch any circuit wiring...

Page 9: ...rewdriver 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 spring ...

Page 10: ...fter 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 alignmen...

Page 11: ...onnectors from the transformer terminals and check continuity 2 Normal resistance readings should be as follows Secondary Approx 123Ω Filament Approx 0Ω Primary Approx 2 15Ω Room temperature 20 C Magnetron Antenna Gasket Plate Cooling Fins 5 Alignment and Adjustments PRECAUTION 1 High voltage is present at the high voltage terminal of the high voltage transformer during any cook cycle 2 It is neit...

Page 12: ...es and the interlock monitor switch 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 Door Open Door Closed Primary switch 0 Monitor switch COM NC 0 Monitor switch COM NO 0 Secondary switch 0 Alignment and Adjustments 5 3 High Voltage Capacitor 1 Isolate the diode from the ...

Page 13: ... and time tests with accurate equipment 1 Fill the one liter glass vessel with one liter of water 2 Stir water in glass vessel with thermometer and record glass vessel s temperature as T1 10 1 C 3 After moving the water into another glass vessel place it on the center of the cooking tray Set the oven to high power and operate for 54 seconds exactly 2 seconds included as a holding time of magnetron...

Page 14: ...device make a repair record for the measured values and keep the data 2 If the radiation leakage is more than 4 mW cm2 after determining that all parts are in good condition functioning properly and the identical parts are replaced as listed in this manual notift that fact to CENTRAL SERVICE CENTER 5 11 2 At least once a year have the microwave energy survey meter checked for accuracy by its manuf...

Page 15: ...e fuse 2 Poor contact of Check continuity of power supply cord Also check Adjust or replace the power cord whether the power cord is securely wired power supply cord 3 Defective lamp The fan motor rotates but lamp does not light Replace the lamp Oven lamp 4 Defective timer Check the terminals of timer for continuity Replace the timer does not contacts turning the timer knob ON and OFF repeatedly l...

Page 16: ...loose screw 1 Defective If the timer does not operate with 230V applied to the Replace timer Timer does timer motor terminals the timer motor amy be faulty not operate 2 Defective The lamp does not light Replace timer contacts of timer S W Cooking tray 1 Defective Check to see if 230V exists at the motor terminals Replace drive motor does not drive motor If so motor will be defective rotate 1 Bloc...

Page 17: ...eck the continuity of primary coil and secondary Replace the H V Trans coil If there is no continuity H V Transformer is H V Transformer former defective 7 Shorted H V Check the continuity of capacitor Replace the capacitor If the capacitor shorts the fuse blows H V Capacitor 8 Monitor fuse Check the monitor fuse Replace the blown out on the noise filter Monitor fuse 6 2 Unsatisfactory Cooking Sym...

Page 18: ...rts List 7 1 Main Exploded View M1 M3 M27 M29 M35 C6 C5 C4 C7 C2 C8 C1 C3 M32 M31 M34 M33 M18 M21 M22 M23 M19 M36 M37 M38 M25 M26 M2 M5 M28 M6 M9 M10 M13 M39 M15 M16 M17 B1 B2 B2 B3 B4 M7 M8 M30 M24 M14 M4 M11 M12 D1 D2 D3 D5 D6 D9 D4 D7 D8 M20 D10 ...

Page 19: ...G45 M9745 1 M18 DE66 90013A LEVER DOOR POM F20 01 NTR MW5630T 1 M19 DE26 10121B TRANS H V SHV 745EC1 230V 50HZ KEC 2230V 1 M20 DE92 40170Z ASSY DOOR G639C XEF PURE WHT SEF 1 M21 DE61 50106A BRACKET HVC SECC T0 8 W31 L125 8 1 M22 2501 001105 C OIL 950nF 2 1KV BK 54x35x80 20 1 M23 DE91 70063A ASSY HVD V2M6 PI9 0 0 05MT 1 M24 DE91 70061B ASSY H V FUSE THV060T 0750 H 5KV0 75A RED 1 M25 DE61 40017A FOO...

Page 20: ...embly Door Parts List Exploded Views and Parts List Ref No Parts No Description Specification Q ty Remarks C 1 DE66 20171A BUTTON PUSH ABS WHT G643C 1 C 2 DE61 70076A SPRING BUTTON HSWR PI0 6 1 C 3 DE64 10122A KNOB ABS WHT 5G G633C 2 C 4 DE72 70165P CONTROL PANEL ABS HR 0370 G639C XEF P WHT W950 SEF 1 C 5 DE45 10075A TIMER ASSY TMFF60MTN1 220 240V 240 GRILL 1 C 6 3501 000309 RELAY POWER 240V 3750V...

Page 21: ...LAT DE60 10082H SCREW A 2S 4X12 TOOTHED 1 BKT GRI DE60 10082H SCREW A 2S 4X12 TOOTHED 2 CN BOX DE60 10082H SCREW A 2S 4X12 TOOTHED 1 CV AIR DE60 10082H SCREW A 2S 4X12 TOOTHED 2 MO FAN DE60 10082H SCREW A 2S 4X12 TOOTHED 5 PN OUT DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 CV TCO DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 2 M DRIV DE60 10098A SCREW ASSY TAP...

Page 22: ...MGT TCO LAMP DRIVE MOTOR FAN MOTOR TIMER MOTOR GRILL HEATER GRILL TCO PRIMARY SWITCH MONITOR SWITCH FUNCTION ROTARY MWO MODE CYCEL MODE GRILL MODE PRIMARY LATCH SWITCH SECONDARY LATCH SWITCH MONITOR SWITCH L TM DM FM H V T H V D H V C 0 95uF H V FUSE 0 75A 1mH S W1 S W2 S W3 S W1 S W2 S W3 S W1 S W2 S W3 BRN BROWN BLU BLUE ORG ORANGE RED RED WHT WHITE BLK BLACK YEL YELLOW GRN GREEN Y G YELLOW GREE...

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Samsung G639C, Service Manual

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