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MICROWAVE OVEN

CE745GR

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

BWT

GRILL

CE745GR

l b s

oz.

1min+

10min

min

1min

1-2-3

Auto

10s

Содержание CE745GR

Страница 1: ...recaution 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 GRILL CE745GR lbs kg oz g 1min h 10min min 1min 1 2 3 Auto Auto 10s ...

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: ...ondary 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 12 Design Alteration Warning Use exact replacement parts only i e only those that are specified in the drawings and parts lists of this manual This is especially important for th...

Страница 4: ...ges 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 the oven chassis Use a screwdriver ...

Страница 5: ...ROM85 TO 850W 10 LEVEL POWER IEC 705 TEST PROCEDURE OPERATING FREQUENCY 2 450MHz MAGNETRON OM75PH 31 COOLING METHOD COOLING FAN MOTOR OUTSIDE DIMENSIONS 191 4 W x 1027 32 H x 143 8 D NET WEIGHT 36 3 LBS SHIPPING WEIGHT 39 6 LBS 2 2 Comparison Chart MODEL FEATURE MORE LESS O AUTO REHEAT O AUTO DEFROST O TIME COOK O POWER LEVEL O INSTANT COOK O MEMORY O BOOST CHILD LOCK O CLOCK O GRILL O COMBI O CE7...

Страница 6: ...g Button More Less Button Auto Cook Button Instant Cook Button 3 Operating Instructions 3 1 Control Panel Samsung Electronics 3 1 3 2 Features External Views Door VentilationSlot Light SafetyInterlockHoles ControlPanel OpenDoorPushButton GuideRoller GRILLWIRERACK GlassPlate DoorLatches CE745GR lbs kg oz g 1min h 10min min 1min 1 2 3 Auto Auto 10s 489mm 357mm 275mm 200mm 365mm GRILL CE745GR lbs kg ...

Страница 7: ...t parts or it may be damaged 11 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 Magnetron H V Trans H V Cap...

Страница 8: ...or A and Door C to remove Door C Be careful when handling 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 4 3 2 Removal of Door C 4 3 3 Removal of Door E Disassembly and Reassembly Upper Hinge Lower Hinge Screw Scre...

Страница 9: ... replacing the 10A fuse be sure to use an exact replacement part If new 10A fuse blows out again after replacement check the primary interlock switch door sensing switch and interlock monitor switch 4 When the above three switches operate properly check if any other part such as the control circuit board blower motor or high voltage transformer is defective 1 Take out the glass tray guide roller a...

Страница 10: ...cting the FPC connector make sure that the holes on the connector are properly engaged with the hooks on the Plastic Fastener 1 Window display should not be disassembled as its mounting tabs will be broken If repair work is difficult replace with Ass y control panel 2 The membrane key board is attached to the escutcheon base with doublefaced adhesive tape Therefore applying hot air such as using o...

Страница 11: ...ament 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 measurement of...

Страница 12: ...e 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 sw...

Страница 13: ... line voltage under load Low voltage will lower the magnetron output Make all temperature and time tests with accurate equipment 1 Fill the one liter glass vessel with water 2 Stir water in glass vessel with thermometer and record glass vessel s temperature T1 10 1ûC 3 After moving the water into another glass vessel place it in the center of the cooking tray Set the oven to high power and operate...

Страница 14: ...r into each beaker 3 Measure the temperature of each water load Readings shall be taken to the first place of decimals 4 Put each beaker in place on the cooking tray as illustrated in figure below Start heating 5 After heating for 2 minutes measure the water temperature in each beaker 6 Microwave heat distribution rate can be calculated as follows Minimum Temperature Rise Heat Distribution X 100 M...

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: ...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...

Страница 17: ...List 7 1 Exploded Views 7 1 M1 M6 M30 M32 M38 C1 C2 C3 C4 C5 C6 M37 D1 D2 D3 D5 D6 M33 M34 M22 M26 M24 M25 M27 M28 M29 M3 M7 M8 M9 M10 M11 M4 M2 M14 M20 M5 M15 M18 M16 M17 M19 M21 B1 B2 B4 B3 B5 M12 D4 D7 M35 M36 M31 M39 M40 M41 M43 M42 M44 M23 M13 ...

Страница 18: ...ACKET MOUNTING SECC T0 8 W24 L316 M624 1 73013 0342 00 M 21 DE93 20001A ASSY BODY LATCH 2ND W1 M97G45 M9745 1 M 22 DE66 90013A LEVER DOOR POM F20 01 NTR MW5630T 1 71533 0015 00 M 23 DE91 70061B ASSY H V FUSE THV060T 0750 H 5KV0 75A RE 1 79163 0252 01 M 24 DE61 50106A BRACKET HVC SECC T0 8 W31 L125 8 1 73013 0194 00 M 25 DE91 70065A ASSY HVD BMP28 SEMA 12KV SUMI 1 79169 0153 00 M 26 2501 001014 C O...

Страница 19: ...s No C 1 DE66 20006A BUTTON PUSH RESIN ABS HR 0370U P WHT M9 1 C 2 DE61 70076A SPRING BUTTON HSWR PI0 6 1 76674 239 310 C 3 DE34 10007C SWITCH MEMBRANE PET 230V50HZ W89 7 L161 1 C 4 DE72 70003A CONTROL PANEL ABS VH 080 WHT 1 C 5 DE67 40002A WINDOW DISPLAY RESIN ACRYLIC T2 3 M945 I 1 C 6 DE91 10377A ASSY P C B MAIN 230V50HZ NS V F D CE945G 1 7 5 Body Latch Parts List Ref No Parts No Description Spe...

Страница 20: ...02 00029A TAPE SCOTCHPAR POLYESTER 3M 893 W50 1 TR CUS 70859 800 311 DE60 10069A SCREW TAP TH TH M4 L10 FRFZY 3 B UPP 77128 540 101 DE60 10012A SCREW TAP TITE TH 3 M4 L10 SWR10 ZPC2 2 HI LOW 70504 0002 00 DE60 10098A SCREW ASSY TAPTITE PH TC M4X8 SWRCH18A Z 1 MEM PN A0103 0010 DE60 10098A SCREW ASSY TAPTITE PH TC M4X8 SWRCH18A Z 1 CV TCO A0103 0010 DE60 10082J SCREW TAPPING TH 2S 4X8 MSWR3 ZPC YEL...

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

Страница 22: ...16V GP 5 1 C05 2401 001412 C AL 1SG1VFB477MAN 470UF 20 35V GP 10X1 1 C01 3501 001014 RELAY POWER OM1F S 124LM 24V 21 8MA 17A 1 RY01 3501 001015 RELAY POWER OZF S 124LM1P 24V 21 8MA 16A 1 RY04 3501 001016 RELAY MINIATURE JV24 KT 24V 12 5MA 5A 1F 2 RY02 03 3708 000528 CONNECTOR FPC FC PIC FCZ254 13SL BLK 13P 1 CN02 3711 000203 CONNECTOR HEADER YW396 03AV WHT STRAIGHT 1 CN01 3711 000881 CONNECTOR HEA...

Страница 23: ...BLUE ORG ORANGE YEL YELLOW COOK OFF WIRING COLOR A S S Y M A I N P C B BLK POWER CORD 230V 50HZ 250V10A C1 1ND C3 RESISTOR GRILL RELAY BLK CAVITY TCO BLK BLK COM COM NC NO BLU BLU 230V40W LAMP MONITOR FUSE 250V1 6A YEL ORG ORG YEL YEL F MOTOR INRUSH RELAY RESISTOR POWER RELAY SECONDARY INTERLOCK WHT WHT WHT 0V 0V 21V 230V C2 CAVITY TCO BLK 230V H V TRANS H V DIODE H V FUSE 0 75A CE745G 0 8A CE945G...

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