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8. P.C.B Diagrams

8-1 P.C.B Diagrams

Samsung Electronics

8-1

Содержание M959

Страница 1: ... g kg 10s 1min 10min 1 min 1 2 3 Auto Auto Auto 1 2 3 1 2 3 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 BWT ...

Страница 2: ... 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 releas...

Страница 3: ...k 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 and secondary switches 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 Alteration Warn...

Страница 4: ...es this includes the filament voltage of the magnetron High voltage is present during any cook cycle Before touching any components or wiring always unplug the oven and discharge the high voltage capacitor See Figure 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 screwdrive...

Страница 5: ...M75PH 31 COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 517 W x 297 H x 395 D POWER LEVEL M959 10 90W 4 sec 26 sec 20 180W 7 sec 23 sec 30 270W 10 sec 20 sec 40 360W 13 sec 17 sec 50 450W 16 sec 14 sec 60 540W 19 sec 11 sec 70 630W 22 sec 8 sec 80 720W 25 sec 5 sec 90 810W 28 sec 2 sec 100 900W 30 sec 0 sec ON TIME OFF TIME 2 2 Comparison Chart MODEL FEATURE AUTO REHEAT O AUTO COOK O POWER LE...

Страница 6: ...in 1 min Auto Auto 1 2 3 1 2 3 1 2 3 3 Operating Instructions 3 1 Control Panel Samsung Electronics 3 1 3 2 Features External Views Door Ventilation Holes Light Safety Interlock Holes Control Panel Display Roller Ring Coupler Glass Plate Door Latches Auto M959 g Kg 10s 1min 10min 1 min 1 2 3 Auto Auto 1 2 3 1 2 3 517mm 297mm 395mm g kg 10s 1min 10min 1 min 1 2 3 Auto Auto Auto 1 2 3 1 2 3 ...

Страница 7: ...it 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 1 Replacement of High Voltage Transformer Lamp Magnetron H V Trans H V Ca...

Страница 8: ...ndling 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 Remove pin hinge from Door E Detach spring from Door E and key door 4 3 2 Removal of Door C 4 3 3 Removal of Door E 4 3 4 Removal of Key Door Spring Disassembly...

Страница 9: ...hen replacing the drive motor be sure to 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 Replacement of Fuse 4 5 Replacement of Drive Motor Disassembly and Reassembly Screw Drive Motor Cover Base Plate Drive Motor After replacement of the defective co...

Страница 10: ...emove the screw securing the ground tail of the keyboard 1 Pull the lever end of the plastic fastener and remove the Flexible Printed Circuit FPC of membrane panel 2 Remove screws securing the control circuit board 3 Lift up the control circuit board from the Ass y control box 4 When reconnecting the FPC connector make sure that the holes on the connector are properly engaged with the hooks on the...

Страница 11: ...inal 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 Filament Terminals Secondary Terminal Primary Terminals MODEL M959R Secondary Approx 130Ω Filament Approx 0Ω Primary Approx 1 700Ω Terminals Resistance 1 2 Input 1 ...

Страница 12: ...ance between each terminal and chassis should read infinite 1 Isolate the diode from the circuit by disconnecting its leads 2 With the ohm meter set at the highest resistance scale measure across the diode terminals Reverse the meter leads and read the resistance A meter with 6V 9V or higher voltage batteries should be used to check the front to back resistance of the diode otherwise an infinite r...

Страница 13: ...ional power test should be made if temperature rise is marginal NOTE 2 Output power in watts is computed by multiplying the temperature rise step E by a factor of 91 times the of centigrade temperature The microwave heat distribution can be checked indirectly by measuring the water temperature rise at certain positions in the oven 1 Prepare five beakers made of Pyrex having 100 milliliters capacit...

Страница 14: ...nt 1 After adjustment and repair 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 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 13 2 At least once a year have the microwav...

Страница 15: ...witch 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 Sequence R...

Страница 16: ...noise 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 not rotate 1 Open or loose wiring of turntable motor Replace turntable motor 2 Defective turntable motor Oven stops operation during cooking 1 Open or loose wiring of primary Adjust door and latch swi...

Страница 17: ... 7 1 Exploded Views 7 1 M1 M2 M21 M22 M23 M24 M25 M26 M15 M14 M16 M18 M19 M20 M3 M30 M4 M5 M6 M7 M8 M30 M9 M10 M12 M13 M11 M29 M27 M28 M17 D1 D12 D2 D3 D4 D5 D6 D7 D9 D8 D10 D11 C2 C1 C3 C7 C5 C15 C8 C6 C10 C9 C11 C4 B1 B2 B2 B3 B4 NC NO COM C12 C13 C14 ...

Страница 18: ...HERMOSTAT MW5574W 160 60 187 HORIZ 1 M 15 DE26 10100A TRANS H V SHV 945EG1 230V 50HZ 2310V DPC 1 M 16 DE61 50106A BRACKET HVC SECC T0 8 W31 L125 8 1 M 17 2501 001019 C OIL 1 01uF 2100V BK 35x54x90 20mm 1 M 18 DE59 40001A DIODE H V HVR 1X 32B 12 1 M 19 DE91 70061A ASSY H V FUSE THV060T 0800 H 5KV 0 8A WHT 1 M 20 DE61 40017A FOOT PP A353 BLK MW5630T 2 M 21 DE31 10154A MOTOR DRIVE M2HJ49ZR02 ST 16 1V...

Страница 19: ...0178 SWITCH MICRO 250V 15A 200gf SPST NO 2 B 3 3405 000175 SWITCH MICRO 250V 15A 200gf SPST NO 1 B 4 DE66 90054A LEVER SWITCH POM F20 02 15G NTR RE 330 1 7 5 Body Latch Parts List Ref No Parts No Description Specification Q ty Remarks C 1 DE71 60366F COVER PANEL ABS HR0370U 45G WHT M95 1 C 2 DE67 40145A WINDOW DISPLAY ACRYL T2 W40 L77 SMOG 30G 1 C 3 DE72 70171K CONTROL PANEL ABS WHT M959 BWT 1 C 4...

Страница 20: ...0A SCREW WASHER M5 L12 2S 4 TNS HV DE60 10082H SCREW A 2S 4X12 TOOTHED 5 PN OUT DE60 10082H SCREW A 2S 4X12 TOOTHED 2 B PLTE DE60 10082H SCREW A 2S 4X12 TOOTHED 2 BD LAT 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 10098A SCREW ASSY TAP TITE PH TC M4X8 SWRCH18A ZPC2 GLD W 1 CV TCO DE60 10098A SCREW ASSY ...

Страница 21: ...8 P C B Diagrams 8 1 P C B Diagrams Samsung Electronics 8 1 ...

Страница 22: ... TR06 TR08 2001 000273 R CARBON 100Kohm 5 1 8W AA TP 1 8x3 2m 1 R15 2001 000290 R CARBON 10Kohm 5 1 8W AA TP 1 8x3 2mm 9 R05 R07 R10 R12 R13 R19 R21 2001 000429 R CARBON 1Kohm 5 1 8W AA TP 1 8x3 2mm 5 R01 R02 R08 R11 R17 2001 000502 R CARBON 20ohm 5 1 4W AA TP 2 4x6 4mm 7 R22 R28 2001 000577 R CARBON 2Kohm 5 1 8W AA TP 1 8x3 2mm 2 R03 04 2001 000613 R CARBON 3 9Kohm 5 1 8W AA TP 1 8x3 2m 3 R09 R14...

Страница 23: ...RELAY POWER RELAY INRUSH RELAY DOOR SENSING SWITCH DOOR SENSING SWITCH RESISTOR POWER RELAY MAIN RELAY F FA MAGNETRON NO COM NO NO BLU YEL BRN BRN BRN BLK BLU BLK COM 0V LAMP 230V40W L V TRANS PRIMARY LATCH SWITCH NO COM ORG ORG MONITOR SWITCH L FM H V T H V D H V C H V FUSE 1mH BRN BROWN BLU BLUE ORG ORANGE RED RED WHT WHITE BLK BLACK YEL YELLOW GRN GREEN Y G YELLOW GREEN SYMBOL COLOR NOTE MAIN F...

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