Samsung 138FM Service Manual Download Page 1

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MICROWAVE OVEN

CK135M / 138FM

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

Auto

/ C

GB/F/D/E/I/NL/R

1min+

Summary of Contents for 138FM

Page 1: ...E 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 Auto Auto Auto C GB F D E I NL R 1min ...

Page 2: ...ce test 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...

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: ...erminals 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 Servicemen should remove their watches whenever working close to or replacing the magnetron Fig 1 1 Discharging the High Voltage Capacitor PRECAUTION There exists HIGH VOLTAGE ELECTRICITY with high cur...

Page 5: ...ER SOURCE 230V 50HZ AC POWER CONSUMPTION MICROWAVE 1 500W GRILL 1 300W CONVECTION 1700W OUTPUT POWER FROM100 TO 900W 6 LEVEL POWER IEC 705 TEST PROCEDURE OPERATING FREQUENCY 2 450MHz MAGNETRON OM75PH 31 COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 625 W x 390 H x 575 D NET WEIGHT 26 Kg SHIPPING WEIGHT 28 Kg ...

Page 6: ...e Temperature Selection Start Cooking Time Adjustment Button Combined Mode Selection Microwave Convection Clock Setting Language Mode Selection Auto Auto Auto C GB F D E I NL R 1min 3 Operating Instructions 3 1 Control Panel 3 2 Features External Views Door Ventilation Holes Light Safety Interlock Holes Control Panel Guide Roller Coupler Grill Rack Glass Plate Door Latches Auto Auto Auto C GB F D ...

Page 7: ...enna 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 the high voltage capacitor 2 Disconnect all the leads 3 Remove the mounting bolts 4 Reconnect the leads correctly and firmly 4 2 Replacement of High Voltage Transformer Lamp Cover Air M...

Page 8: ...e correct position with the coupler 8 Connect all the leads to the drive motor 9 Screw the drive motor cover to the base plate with a screw driver 4 4 Replacement of Drive Motor Screw Drive Motor Cover Base Plate Drive Motor 4 3 Replacement of Fuse 1 Disconnect the oven from the power source 2 When 15A fuse blows out by the operation of interlock monitor switch failure replace the primary interloc...

Page 9: ...static electricity from your body and avoid touching the Touch control clrcuitry 2 Disconnect the connectors from the control circuit board 3 Remove screws securing the control circuit bord 4 Lift up the control circuit board from right side and remove the hooks holding the contol circuit board to the box assembly SCREWS ...

Page 10: ...ween 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 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 m...

Page 11: ... 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 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 swi...

Page 12: ...ONDUCTING MICROWAVE ENERGY The output power of the magnetron can be measured by performing a water temperature rise test Equipment needed Two 1 liter cylindrical borosilicate glass vessel Outside diameter 190 mm One glass thermometer with mercury column NOTE Check line voltage under load Low voltage will lower the magnetron output Make all temperature and time tests with accurate equipment 1 Fill ...

Page 13: ...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 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 checked...

Page 14: ...sing 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 Sequ...

Page 15: ...d 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 d...

Page 16: ... MM30 MM29 MM14 MM22 MD01 MM18 MM19 MM20 MM641 MM91 MM642 MM16 MM35 MM65 MM53 MM582 MM28 MM102 MM63 MM61 MM60 MM68 MM69 MM72 MM66 MM73 MM07 MM55 MM03 MM06 MM10 MM71 MM17 MM17 MM56 MM25 MM581 MC01 MM05 MM59 MM57 MM21 MB01 MB05 MB03 MB02 MB04 NC NO COM MM031 MM88 MM105 MM103 MM104 MM106 MM100 CK138FM CK138FM CK138FM CK138FM CK138FM ...

Page 17: ...US M2LJ24Z702 ST 16F 220 240V 2 5 1 MM25 DE65 20014A CABLE CLAMP DA 6N NY 66 1 P CORD MM27 DE61 40065A FOOT PP BLK T2x22x17mm 4 MM28 DE80 10002G BASE PLATE SGCC T0 8 W404 L633 CK135 1 MM29 2501 001019 C OIL 1 10uF 2100V BK 35X54X90 20mm 1 MM30 DE61 50106A BRACKET HVC SECC T0 8 W31 L125 8 1 MM31 DE59 40001A DIODE H V HVR 1X 32B 12 1 MM32 DE91 70061A ASSY H V FUSE THV060T 0800 H 5KV 0 80A WHT 1 MM33...

Page 18: ...TE CORE NI ZN T13 8 W21 0 L28 0 BNF 14 1 MM91 DE74 20025C TRAY CONVENTION SPP TO 8 W12 L325 9 CE104CF 1 MM93 DE60 60025A PIN FOOT PP JI350 BLK 4 MM100 DE92 90534A ASSY TRAY BROILER CE118KF TEFLON COATING 1 CK138FM MM103 DE67 60074A COUPLER BARBECUE PTFE 29G WHT CE104CF 1 CK138FM MM104 DE72 80062A SHAFT BARBECUE STS304 D3 L149 W60 25 CE97 6 CK138FM MM105 DE74 40001A SPIT BARBECUE MSWR CE945G SNC2 1...

Page 19: ...DOOR A CK135M PC TRIREX 1 MD04 DE94 00300A ASSY DOOR E CK135T BLK SEALING 1 MD06 DE64 00087A DOOR C PBT 1 3 CONV CK135T BLK 1 MD07 DE61 70148A SPRING KEY HSWR3 PI6 0 D0 8 L34 4 BLUING 1 MD08 DE61 80002A HINGE UPPER SCP1 T2 3 26 77 ZPC3 WHT CE945 1 MD09 DE61 80003A HINGE LOWER SCP1 T2 3 26 77 ZPC3 WHT CE945 1 MD10 DE64 40264B DOOR KEY NYLON 66 2021SW 40G M959 XS 1 MD15 DE64 00085C DECORATION DOOR C...

Page 20: ...135T 1 MC07 RC 135T 00 ASSY PCB PARTS CK135 1 MC10 DE64 00123C KNOB COVER CK135M BROWN 1 MC13 DE94 00318F ASSY CONTROL PANEL CK135M BROWN 1 CK135M MC15 DE67 00060C BUTTON START BROWN CK135M 1 MC27 DE67 00055C BUTTON CANCEL PC BROWN CK135M 1 MC28 DE67 00047C BUTTON DEFROST PC BROWN CK135M 1 MC32 DE97 00137C ASSY BUTTON SELECT CK135M BROWN 1 MC33 DE97 00139C ASSY BUTTON CLOCK CK135M BROWN 1 MC01 DE9...

Page 21: ...250 1 MM76 DE47 70077A HEATER CONVECTION 230V 1680W 30 7 7 1 MM77 DE60 30016B NUT FLANGE M4 MSWR10 FEFN 3 MM78 DE60 40026A WASHER PLAIN ID5 5 OD12 T1 0 SBC1 1 MM81 DE62 00008A ADIABATIC CASING T3 0 W241 L336 8 CK135 SUPER FINE INSULATIO 1 MM82 DE72 30016B BUSH MOTOR MSWR3 D5 6 L15 7 CE115K ZP3 1 MM83 DE92 90487A ASSY COVER CASING CE115K 230V50HZ 1 MM88 DE73 90027A FERRITE CORE NI ZN T13 8 W21 0 L2...

Page 22: ...W A 2S 4X12 TOOTHED 2 C CASING DE60 10082H SCREW A 2S 4X12 TOOTHED 1 CN BOX DE60 10082H SCREW A 2S 4X12 TOOTHED 2 CO A RIG DE60 10082H SCREW A 2S 4X12 TOOTHED 2 CV BACK DE60 10082H SCREW A 2S 4X12 TOOTHED 2 GRILL TCO DE60 10082H SCREW A 2S 4X12 TOOTHED 1 GUIDE AI DE60 10082H SCREW A 2S 4X12 TOOTHED 2 LATCH DE60 10082H SCREW A 2S 4X12 TOOTHED 5 PN OUT DE60 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRC...

Page 23: ...8 P C B Diagrams 8 1 P C B Diagrams Samsung Electronics 8 1 ...

Page 24: ...3 R03 04 05 2001 003132 R CARBON S 620ohm 5 1 2W AA TP 26mm 2 4 2 R22 23 2007 000277 R CHIP 100KOHM 1 1 10W DA TP 2012 1 R33 2007 000300 R CHIP 10KOHM 5 1 10W DA TP 2012 8 R08 10 12 13 16 17 21 2007 000468 R CHIP 1KOHM 5 1 10W DA TP 2012 7 R06 07 15 18 19 31 35 2007 000572 R CHIP 220OHM 5 1 10W DA TP 2012 1 R11 2007 000671 R CHIP 2KOHM 5 1 10W DA TP 2012 1 R14 2007 000868 R CHIP 4 7KOHM 1 1 10W DA...

Page 25: ... 1 9 Schematic Diagrams 9 1 Schematic Diagrams MAGNETRON FA F RED RED RED RED SYMBOL COLOR BRN BROWN BLK BLACK RED RED BLU BLUE BRN BLU HIGH VOLTAGE TRANSFORMER HIGH VOLTAGE CAPACITOR HIGH VOLTAGE DIODE TO CHASSIS H V FUSE ...

Page 26: ...ELECTRONICS Samsung Electronics Co Ltd Aug 2000 Printed in Korea Code No DE68 01379A ...

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