Samsung CM1012B Скачать руководство пользователя страница 10 | Manualshive

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4-6 Replacement of Control Circuit Board

4-6-1 Removal of Control Box Assembly

1. Disconnect the connectors from the control

box assembly.

2. Remove screws securing the control box

assembly.

3. Remove the knobs of the control box A'ssy.

4. Remove the screw securing the timer.

Control Box

Screws

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Содержание CM1012B

Страница 1: ...EN 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 Schematic Diagrams Manual CM1012B 1 ...

Страница 2: ...s 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 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 s...

Страница 3: ... into compliance at no cost to owner and try to determine cause Instruct owner not to use oven until it has been brought into compliance CENTRAL SERVICE CENTER 10 Service technicians 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...

Страница 4: ...igure 1 1 2 The high voltage capacitor 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 PRECAUTIO...

Страница 5: ...NSUMPTION OUTPUT POWER OPERATING FREQUENCY MAGNETRON COOLING METHOD OUTSIDE DIMENSIONS NET WEIGHT 6 MINUTES 120V 60Hz AC MICROWAVE 1 450W FROM 100W TO 1000W 10LEVEL POWER IEC 705 TEST PROCEDURE 2 450MHz OM75PH 31 ESS COOLING FAN MOTOR 2011 32 W x 1111 16 H x 1411 16 D 35 3 lbs ...

Страница 6: ...ating Instructions 3 1 Control Panel 3 2 Features External Views 1 517mm 297mm 385mm 1 Door Ventilation Holes Light Safety Interlock Holes Control Panel Open Door PushButton Guide Roller Glass Tray Door Latches ...

Страница 7: ... 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 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 the...

Страница 8: ...e careful when handling Door C because it is fragile 4 3 3 Removal 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 Detach spring from Door E and key door Door E Key Door Sp...

Страница 9: ...rate 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 Remove screws securing...

Страница 10: ...4 6 1 Removal of Control Box Assembly 1 Disconnect the connectors from the control box assembly 2 Remove screws securing the control box assembly 3 Remove the knobs of the control box A ssy 4 Remove the screw securing the timer Control Box Screws ...

Страница 11: ...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 SHV 6574C2 1 Secondary Filament Primary 80 0Ω Shows Continuity 0 30Ω Terminals Resistance SLV544E 1 2 Input 4 5 Output 2 2V 7 8 Output17 5V 379 Ω 3 3 Ω 18 5 Ω Primary Terminal...

Страница 12: ...ounting 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 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 moni...

Страница 13: ...ion 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 4 187 x 1000 x T 0 55 x MC x T2 T0 Output Power 42 45 Heating Time sec 4 187 Coefficient for Water 1000 Water cc T Temperature Rise T2 T1 MC Cylindrical borosilicate glas...

Страница 14: ... at the highest power 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 10 Note on Measurement 1 Do not exceed the limited scale...

Страница 15: ... monitor switch Fuse is Open Layer short of the secondary coil of H V Transformer The fuse will not blow right away but if it blows in a few seconds then there is a layer short If the fuse blows with H V Trans secondary open the transformer may be faulty Replace H V Transformer Oven lamp does not light 1 Fuse blown out Check fuse Replace the fuse 2 Poor contact of power cord Check continuity of po...

Страница 16: ...well to the door hinge Fasten or tighten Timer does not operate 1 Defective timer motor If the timer does not operate with 21V applied to the terminals the timer motor amy be faulty Replace timer 2 Defective contacts of timer S W The lamp does not light Replace timer Cooking tray does not rotate 1 Defective drive motor Check to see if 21V exists at the motor terminals If so motor will be defective...

Страница 17: ...ON and OFF repeatedly Replace or adjust 6 Open coil of H V Trans former Check the continuity of primary coil and secondary coil If there is no continuity H V Transformer is defective Replace the H V Transformer 7 Shorted H V capacitor Check the continuity of capacitor If the capacitor shorts the fuse blows Replace the H V Capacitor 8 Monitor fuse blown out Check the monitor fuse on the noise filte...

Страница 18: ...0 MM01 MM55 MM22 MM110 MM16 MM07 MM13 MM29 MM30 MM31 MM14 MM20 MM18 MM19 MM27 MM28 MM06 MM03 MM17 MM08 MM09 MB01 MB05 MB03 MB08 MB04 MB02 MM52 MM111 MM113 MM112 MD01 MD02 MD07 MD04 MD11 MD06 MD01 MD28 MD03 MD08 MD09 MD05 MD10 MC05 MC04 MC11 MC03 MC08 MC13 OFF FO OD MIN ...

Страница 19: ... COVER DUST CM1020L PP NTR 1 MM111 DE71 00103A COVER DROP CM1020L ALCOAT 1 MM112 DE70 00159A PIN DUST COVER M CM1020L PP NTR 2 MM113 DE70 00160A PIN DUST COVER F CM1020L PP NTR 2 MM13 DE66 90113A LEVER DOOR PP TB53 GH41 T2 5 12g NTR 3RD W 1 MM14 DE26 00023A TRANS H V SHV 6574UC3 120V60HZ 2265V 3 50V DY 1 MM16 DE71 00015A COVER CEILING CE2933 T0 3 W114 2 L121 5 CE2933 1 MM17 DE47 20032B THERMOSTAT ...

Страница 20: ...G ASSY DOOR CM1022B LIGHT GRY 1 MD02 DE64 40011U DOOR A CM1022B ABS L GRAY 1 MD03 DE63 00032D SCREEN DOOR CM1022B T1 5 L GRAY 1 MD04 DE94 00075B ASSY DOOR E 3RD 1 0 BLK COATING 1 MD05 DE01 00118A FILM DOOR MW5896W L185 T0 15 W304 1 MD06 DE64 40012A DOOR C RESIN PP TB53 BLACK CE945GF 1 MD07 DE61 70128A SPRING KEY BLUING HSW3 PI0 6 PI0 6 D5 D5 D5 BLUING 1 MD08 DE61 80002A HINGE UPPER WHT SHV 745CC1 ...

Страница 21: ...OTHED 1 CV AIR DE60 10082H SCREW A 2S 4X12 TOOTHED 2 MGT TCO DE60 10082H SCREW A 2S 4X12 TOOTHED 1 N F EA DE60 10082H SCREW A 2S 4X12 TOOTHED 1 P C EA DE60 10082H SCREW A 2S 4X12 TOOTHED 1 S M EA DE60 10083A SCREW TAP TH FEFZY FA TH M4 L12 1 PO BP DE60 10098A SCREW ASSY TAP TITE GLD SWRCH18A ZPC2 PH TC M4X8 WT 2 M DRIV DE60 20063A BOLT FLANGE M4 10 ZPC3 YEL MSWR 2 HIN LOW DE60 20063A BOLT FLANGE M...

Страница 22: ... ORG RED RED BLK RED RED WHT WHT RED RED BLK MAGNETRON HIGH VOLTAGE DIODE TO CHASSIS FA F HIGH VOLTAGE TRANSFORMER SECONDARY SWITCH BOTTOM MONITOR SWITCH CENTER BLU PRIMARY SWITCH TOP HIGH VOLTAGE CAPACITOR BLK RED ORG WHT SYMBOL COLOR BLU BLK RED ORANGE WHITE BLUE BLACK ...

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