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M ICROWAVE OVEN

M 1777(W HITE)

SEF

SERVICE

Manual

MICROWAVE OVEN

CONTENTS

1. Precaution

2. Specifications

3. Operating Instructions

4. Disassembly and Reassembly

5. Alignment and Adjustments

6. Troubleshooting

7. Easy Sensor Calibration M ethods and Action Points

8. Exploded View s and Parts List

9. PCB Diagrams

10. Schematic Diagrams

Содержание M1777

Страница 1: ...CONTENTS 1 Precaution 2 Specifications 3 Operating Instructions 4 Disassembly and Reassembly 5 Alignment and Adjustments 6 Troubleshooting 7 Easy Sensor Calibration Methods and Action Points 8 Explode...

Страница 2: ...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 guid...

Страница 3: ...es 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 M...

Страница 4: ...urrent 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...

Страница 5: ...50Hz AC POWER CONSUMPTION MICROWAVE 1 250W OUTPUT POWER FROM 100 TO 850W IEC 705 TEST PROCEDURE OPERATING FREQUENCY 2 450MHz MAGNETRON OM75SH 31 COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 48...

Страница 6: ...REHEAT BUTTON START DIAL KNOB DEODORIZATION AUTO EASY SENSOR DEFROST BUTTON STOP CANCEL BUTTON BUTTON 3 Operating Instructions 3 1 Control Panel 3 2 Features External views DOOR TURNTATBLE COUPLER RO...

Страница 7: ...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 cond...

Страница 8: ...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 Insert flat screwdriver into the g...

Страница 9: ...remount it in the correct position 8 Connect all the leads to the drive motor 9 Screw the deive motor cover to the base plate with a screw driver 10 Remount the coupler in the correct position 4 4 Rep...

Страница 10: ...atic electric charge in your body and never touch the control circuit 2 Disconnect the connectors from the control circuit board 3 Remove screws securing the control box assembly 4 Remove the screw se...

Страница 11: ...tinuity check between each filament terminal and magnetron case should read open 1 The low voltage transformer is located on the control circuit board 2 Remove the low voltage transformer from the PCB...

Страница 12: ...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 smoot...

Страница 13: ...xceed 65 Output Power 49 49 Counting Time sec 52 Heating Time sec 4 187 Coefficient for Water 1000 Water cc T Temperature Rise T1 T2 To Room Temperature Wb Beaker Weight 5 9 Microwave Heat Distributio...

Страница 14: ...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 4 mW cm 2 after determining that all parts are in good condition...

Страница 15: ...g 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 cont...

Страница 16: ...oise can be heard 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 n...

Страница 17: ...r PCB Main PCB failure Repleace Main PCB Sensing voltage problem due to Replace Sensor PCB wrong parts fitted on the PCB Low power E4 Repleace Magnetron EEPROM Short or Open on the main PCB E5 Repleac...

Страница 18: ...7 4 29 da db 4 31 4 33 dc dd 4 35 4 37 de df 4 91 4 93 fa fb 4 95 4 97 fc fd 4 99 5 0 fe ff 0 03 0 05 0 07 0 09 0 11 0 13 0 15 0 17 0 19 0 21 0 23 0 25 0 27 0 29 0 31 0 33 0 35 0 37 0 39 0 41 0 43 0 4...

Страница 19: ...ter panel Note You have to use screwdriver with less than 05 and 10cm or more 2 Remove 1 screw for fastening of cover blower and disconnect cover blower 3 Remove screws for fastening of sensor PCB thr...

Страница 20: ...xploded Views and Parts List 8 1 Exploded Views 7 1 MM29 MM30 MM32 MM20 MM19 MM18 MM88 MM01 MM101 MM31 MM28 MM27 MM14 MB01 MB03 MB03 MB02 MB05 MB04 NC NO COM MM10 MM09 MM08 MM17 MM03 MM22 MM171 MM16 M...

Страница 21: ...0V 40W ORG 25x71mm 1 MM101 DE96 00069A ASSY EZI SENSOR 0 7 ALL M1738 eZi SENSOR 1 MM14 DE26 00014A TRANS H V SHV 175EC 230V50HZ 2275V 3 40V DY 1 MM16 DE71 60450B COVER MGT PP T2 W110 5 L109 28G 3RD 0...

Страница 22: ...ANCEL M1777 ABS P WHT 1 MC31 DE64 00111C BUTTON SENSOR M1777 S ABS CRYSTAL BLUE 1 MD01 DE94 00307A ASSY DOOR M1727 XEF PURE WHT SEF XEC 1 MD02 DE64 00092A DOOR A ABS HR0370 P WHT M1727 XEF 1 MD03 DE63...

Страница 23: ...2S 4X12 TOOTHED 2 B LATCH DE60 10082H SCREW A 2S 4X12 TOOTHED 4 B PLATE DE60 10082H SCREW A 2S 4X12 TOOTHED 1 C BLOWER DE60 10082H SCREW A 2S 4X12 TOOTHED 2 C BOX DE60 10082H SCREW A 2S 4X12 TOOTHED...

Страница 24: ...9 P C B Diagrams 9 1 P C B Diagrams Samsung Electronics 9 1...

Страница 25: ...89 3P SINGLE 0V P 1 IC03 1203 001037 IC VOLTAGE REGULATOR 78L05 SOT 89 3P 185MIL PLASTIC 1 IC02 1404 001194 THERMISTOR PTC 39ohm 20 220 240V 270Vac 1 2A TP 1 PTC1 2007 000282 R CHIP 100KOHM 5 1 10W DA...

Страница 26: ...G SWITCH INRUSH RELAY POWER RELAY SECONDARY INTERLOCK MAIN RELAY L V TRANS 2200pF 0 1uF 1mH 2200pF 250V10A FUSE 500K P T C YEL 21V 0V BRN BRN BROWN RED RED BLU BLUE YEL YELLOW Y G YELLOW GREEN ORG ORA...

Страница 27: ...ELECTRONICS Samsung Electronics Co Ltd May 2000 Printed in Korea DE68 01203A...

Страница 28: ...CONTENTS 1 Precaution 2 Specifications 3 Operating Instructions 4 Disassembly and Reassembly 5 Alignment and Adjustments 6 Troubleshooting 7 Easy Sensor Calibration Methods and Action Points 8 Explode...

Страница 29: ...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 guid...

Страница 30: ...es 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 M...

Страница 31: ...urrent 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...

Страница 32: ...50Hz AC POWER CONSUMPTION MICROWAVE 1 250W OUTPUT POWER FROM 100 TO 850W IEC 705 TEST PROCEDURE OPERATING FREQUENCY 2 450MHz MAGNETRON OM75SH 31 COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 48...

Страница 33: ...REHEAT BUTTON START DIAL KNOB DEODORIZATION AUTO EASY SENSOR DEFROST BUTTON STOP CANCEL BUTTON BUTTON 3 Operating Instructions 3 1 Control Panel 3 2 Features External views DOOR TURNTATBLE COUPLER RO...

Страница 34: ...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 cond...

Страница 35: ...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 Insert flat screwdriver into the g...

Страница 36: ...remount it in the correct position 8 Connect all the leads to the drive motor 9 Screw the deive motor cover to the base plate with a screw driver 10 Remount the coupler in the correct position 4 4 Rep...

Страница 37: ...atic electric charge in your body and never touch the control circuit 2 Disconnect the connectors from the control circuit board 3 Remove screws securing the control box assembly 4 Remove the screw se...

Страница 38: ...tinuity check between each filament terminal and magnetron case should read open 1 The low voltage transformer is located on the control circuit board 2 Remove the low voltage transformer from the PCB...

Страница 39: ...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 smoot...

Страница 40: ...xceed 65 Output Power 49 49 Counting Time sec 52 Heating Time sec 4 187 Coefficient for Water 1000 Water cc T Temperature Rise T1 T2 To Room Temperature Wb Beaker Weight 5 9 Microwave Heat Distributio...

Страница 41: ...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 4 mW cm 2 after determining that all parts are in good condition...

Страница 42: ...g 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 cont...

Страница 43: ...oise can be heard 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 n...

Страница 44: ...r PCB Main PCB failure Repleace Main PCB Sensing voltage problem due to Replace Sensor PCB wrong parts fitted on the PCB Low power E4 Repleace Magnetron EEPROM Short or Open on the main PCB E5 Repleac...

Страница 45: ...7 4 29 da db 4 31 4 33 dc dd 4 35 4 37 de df 4 91 4 93 fa fb 4 95 4 97 fc fd 4 99 5 0 fe ff 0 03 0 05 0 07 0 09 0 11 0 13 0 15 0 17 0 19 0 21 0 23 0 25 0 27 0 29 0 31 0 33 0 35 0 37 0 39 0 41 0 43 0 4...

Страница 46: ...ter panel Note You have to use screwdriver with less than 05 and 10cm or more 2 Remove 1 screw for fastening of cover blower and disconnect cover blower 3 Remove screws for fastening of sensor PCB thr...

Страница 47: ...xploded Views and Parts List 8 1 Exploded Views 7 1 MM29 MM30 MM32 MM20 MM19 MM18 MM88 MM01 MM101 MM31 MM28 MM27 MM14 MB01 MB03 MB03 MB02 MB05 MB04 NC NO COM MM10 MM09 MM08 MM17 MM03 MM22 MM171 MM16 M...

Страница 48: ...0V 40W ORG 25x71mm 1 MM101 DE96 00069A ASSY EZI SENSOR 0 7 ALL M1738 eZi SENSOR 1 MM14 DE26 00014A TRANS H V SHV 175EC 230V50HZ 2275V 3 40V DY 1 MM16 DE71 60450B COVER MGT PP T2 W110 5 L109 28G 3RD 0...

Страница 49: ...ANCEL M1777 ABS P WHT 1 MC31 DE64 00111C BUTTON SENSOR M1777 S ABS CRYSTAL BLUE 1 MD01 DE94 00307A ASSY DOOR M1727 XEF PURE WHT SEF XEC 1 MD02 DE64 00092A DOOR A ABS HR0370 P WHT M1727 XEF 1 MD03 DE63...

Страница 50: ...2S 4X12 TOOTHED 2 B LATCH DE60 10082H SCREW A 2S 4X12 TOOTHED 4 B PLATE DE60 10082H SCREW A 2S 4X12 TOOTHED 1 C BLOWER DE60 10082H SCREW A 2S 4X12 TOOTHED 2 C BOX DE60 10082H SCREW A 2S 4X12 TOOTHED...

Страница 51: ...9 P C B Diagrams 9 1 P C B Diagrams Samsung Electronics 9 1...

Страница 52: ...89 3P SINGLE 0V P 1 IC03 1203 001037 IC VOLTAGE REGULATOR 78L05 SOT 89 3P 185MIL PLASTIC 1 IC02 1404 001194 THERMISTOR PTC 39ohm 20 220 240V 270Vac 1 2A TP 1 PTC1 2007 000282 R CHIP 100KOHM 5 1 10W DA...

Страница 53: ...G SWITCH INRUSH RELAY POWER RELAY SECONDARY INTERLOCK MAIN RELAY L V TRANS 2200pF 0 1uF 1mH 2200pF 250V10A FUSE 500K P T C YEL 21V 0V BRN BRN BROWN RED RED BLU BLUE YEL YELLOW Y G YELLOW GREEN ORG ORA...

Страница 54: ...ELECTRONICS Samsung Electronics Co Ltd May 2000 Printed in Korea DE68 01203A...

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