Samsung C109STR Service Manual Download Page 1

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SERVICE

MICROWAVE OVEN

CONTENTS

MICROWAVE OVEN

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

Manual

C109STR

Summary of Contents for C109STR

Page 1: ...TS MICROWAVE OVEN 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 Manual C109STR ...

Page 2: ...citor 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 close tolerance safety related components and adjustments If the high voltage exceeds the specified limits check each of the special components PRECAUTION There exists HIGH VOLTAGE ELECT...

Page 3: ... POWER OPERATING FREQUENCY MAGNETRON COOLING METHOD OUTSIDE DIMENSIONS SHIPPING WEIGHT 99 MINUTES 230V 50Hz AC MICROWAVE 1 400W GRILL 1 300W CONVECTION 1 700W FROM 100 TO 900W 6 LEVEL POWER IEC 705 TEST PROCEDURE 2 450MHz OM75PH 31 COOLING FAN MOTOR 517 W x 310 H x 511 D mm 24 5 kg 27 5 kg ...

Page 4: ...ting Instructions 3 1 Control Panel 3 2 Features External Views Ventilation Holes Door Light Safety Interlock Holes Control Panel Coupler Guide Roller Grill Rack Glass Door Latches 517mm 369mm 310mm 216mm 511mm ...

Page 5: ... adjacent parts or it may be damaged NOTE2 When replacing the magnetron be sure to remount the magnetron gasket inthe correct position and make sure the gasket is in good 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 PRECAUTION Servicemen should remove their watche...

Page 6: ...of Door E 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 Datach spring from Door E and key door 4 3 5RemovalofScreen Door Deco Door 1 Remove Door E from Door A 2 Remove Door Screen ...

Page 7: ...bove three switches operate properly check if any other part such as the control circuit board blower motor or high voltage transformer is defective 4 5 Replacement of Drive Motor 1 Take out the glass tray guide roller and coupler from cavity 2 Turn the oven upside down to replace the drive motor 3 Remove a screw securing the drive motor cover 4 Disconnect all the lead wires from the drive motor 5...

Page 8: ...ur body and avoid touching the touch control circuitry 2 Disconnect the connectors from the control circuit board 3 Remove screws securing the control box assembly 4 Lift up the control circuit board from right side and remove the hooks holding the control circuit board to the box assembly SCREWS ...

Page 9: ...2 Isolate the magnetron from the circuit by disconnecting its leads 3 A continuity check across the magnetron filament terminals should indicate one ohm or less 4 A continuity check between each filament terminal and magnetron case should read open Filament Terminals Primary Terminals PRECAUTION 1 High voltage is present at the high voltage terminals during any cook cycle 2 It is neither necessary...

Page 10: ...o Latch Body consult the figure 2 No specific adjustment during installation of Primary switch and Monitor switch to the latch body is necessary 3 When mounting the Latch Body to 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 smoothly after adjustment ...

Page 11: ...tion 4 When heating is finished stir the water again with the thermometer and measure the temperature T2 5 Subtract T1 from T2 This will give you the water temperature rise T 6 The output power is obtained by the following formula Output Power 4 187 x 1000 x T 0 88 x Mc x T2 T0 49 Heating Time sec 46 4 187 Coefficient for Water 1000 Water cc T Temperature Rise T1 T2 Mc Cylindrical borosilicate gla...

Page 12: ... level 4 Set survey meter dual ranges to 2 450MHz 5 Using the survey meter and spacer cone as described above measure near the opening of magnetron the surface of the air guide and the surface of the wave guide as shown in the following photo but avoid the high voltage components The reading should be less than 4mW cm2 5 11 Note on Measurement 1 Do not exceed the limited scale 2 The test probe mus...

Page 13: ...er NOTE2 Check adjustment of primary interlock monitor power relay door sensing switch 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 1 Key input is n...

Page 14: ...ain Loud buzzing noise can be heard 1 Loose fan and fan motor 2 Loose screws on H V Transformer 3 Shorted H V Diode Tighten screws of fan motor Tighten screws of H V Transformer Replace H V Diode Turntable motor does not rotate 1 Open or loose wiring of turntable motor 2 Defective turntable motor Replace turntable motor Oven stops operation during cooking 1 Open or loose wiring of primary interloc...

Page 15: ...MM08 MM09 MM62 MM31 MM32 MM125 MM106 MM105 MM103 MM104 MM93 MM27 MM30 MM29 MM14 MM22 MM18 MM19 MM20 MM64 MM64 MM16 MM35 MM65 MM87 MM58 MM28 MM17 MM63 MM61 MM68 MM60 MM69 MM72 MM66 MM73 MM07 MM03 MM05 MM55 MM06 MM10 MM71 MM17 MM88 MM56 MM59 MM57 MB01 MB05 MB03 MB02 MB04 MM50 MM33 ...

Page 16: ...SGCC T0 8 W345 L 1 MM29 2501 001015 C OIL 1 0uF 2100V BK 35X54X80 20mm 1 MM30 DE61 50106A BRACKET HVC SECC T0 8 W31 L125 8 1 MM31 DE91 70065A ASSY HVD BMP28 SEMA 12KV SUMI 1 MM32 DE91 70061A ASSY H V FUSE THV060T 0800 H 5KV 0 80A W 1 MM33 DE26 20152A TRANS L V SLV 105E 230V 50HZ AC17V 3V 1 MM35 DE32 10013A SENSOR THERMISTOR PT 312 K2 1 MM42 DE39 00042A WIRE HARNESS B C100 230V50HZ AMFO 1 MM52 DE63...

Page 17: ...OR C CK95 PBT BLK 1 MD07 DE61 00199A SPRING KEY M1977 HSWR D6 25 1 4 25 1 1 MD08 DE61 80002A HINGE UPPER WHT SHV 745CC1 SSEC T2 3 26 1 MD09 DE61 80003A HINGE LOWER WHT TN 5630T SSEC T2 3 26 77 1 MD10 DE64 00547A KEY DOOR C100 NYLON 66 GV10 V0 1 MD12 DE64 00194A DOOR SUB C109ST PC LEXAN 141 GR 1 MD24 DE94 00744A ASSY DOOR A C109ST STAINLESS 1 MD12 MD24 MD07 MD01 MD06 MD10 MD04 MD08 MD09 ...

Page 18: ... ASSY CONTROL PANEL C109STR STS RUSSIA 1 MC141 DE64 00450A BUTTON SELECT A CK3D79ST PC SILVER 1 MC142 DE64 00451A BUTTON SELECT B CK3D79ST PC SILVER 1 MC143 DE64 00452A BUTTON SELECT C CK3D79ST PC SILVER 1 MC15 DE64 00453A BUTTON START CK3D79ST PC SILVER 1 3 1 MC27 DE64 00454A BUTTON CANCEL CK3D79ST PC SILVER 1 3 1 MC55 DE63 00079A COVER LED CK3D79ST ABS 1 3 C 1 S N A SERVICE NOT AVAILABLE MC141 M...

Page 19: ...E47 70077A HEATER CONVECTION SHC 118E1 1680W 1 MA04 DE60 40026B WASHER PLAIN ID5 5 OD12 T1 0 SBC1 ZNC3 1 MA05 DE62 90098B ADIABATIC CASING T8 W245 L336 8 CK95 1 MA06 DE72 30016A BUSH MOTOR MSWR3 L11 2 D5 6 RE 1300 1 MA07 DE92 90487A ASSY COVER CASING CE115K 230V50HZ 1 MA08 DE60 40014B WASHER C MOTOR M16 T1 0 SECC ZNC3 1 MA09 DE61 50484A BRACKET HEATER STS430 T0 8 W27 2 L26 C 2 MA08 MA02 MA01 MA02 ...

Page 20: ...LATCH DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12 1 B UPPER DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12 1 C AIR DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12 2 C BOX DE60 10070A SCREW TAP TH FEFZY 2 SLOT TH M4 L12 2 M FAN DE60 10080B SCREW WASHER 2S SWRCH18A ZP2 PH PI5 L10 4 MAGNETRON DE60 10080B SCREW WASHER 2S SWRCH18A ZP2 PH PI5 L10 4 TRANS HV DE60 10082H SCREW A 2S 4X12 TOOTHED 5 P O...

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

Page 22: ...7 000033 R CHIP 0OHM 5 1 8W DA TP 3216 53 J11 J63 2007 000277 R CHIP 100KOHM 1 1 10W DA TP 2012 1 R18 2007 000300 R CHIP 10KOHM 5 1 10W DA TP 2012 5 R10 R14 R15 R31 R32 2007 000300 R CHIP 10KOHM 5 1 10W DA TP 2012 3 R35 R36 R41 2007 000468 R CHIP 1KOHM 5 1 10W DA TP 2012 5 R08 R09 R12 R13 R33 2007 000468 R CHIP 1KOHM 5 1 10W DA TP 2012 5 R34 R37 R40 2007 000575 R CHIP 220OHM 5 1 4W DA TP 3216 6 R2...

Page 23: ...tic Diagrams 9 1 Schematic Diagrams MAGNETRON FA F RED RED RED RED SYMBOL COLOR BRN BROWN BLK BLACK RED RED BLU BLUE WHT BLK HIGH VOLTAGE TRANSFORMER HIGH VOLTAGE CAPACITOR HIGH VOLTAGE DIODE TO CHASSIS H V FUSE ...

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