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NE-C1275

NE-C1475

Microwave Oven

・

CORDER NO. MOD0510275C2

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Summary of Contents for NE-C1275

Page 1: ... 2005 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law NE C1275 NE C1475 Microwave Oven CORDER NO MOD0510275C2 ...

Page 2: ... AND PARTS REPLACEMENT PROCEDURE 15 8 COMPONENT TEST PROCEDURE 18 9 MEASUREMENTS AND ADJUSTMENTS 20 10 TROUBLESHOOTING GUIDE 21 11 EXPLODED VIEW AND PARTS LIST 26 12 PARTS LIST 28 13 DOOR ASSEMBLY 31 14 ESCUTCHEON BASE ASSEMBLY 32 15 PACKING AND ACCESSORIES 33 16 WIRING MATERIAL 34 17 DIGITAL PROGRAMMER CIRCUIT 35 18 DIGITAL PROGRAMMER CIRCUIT 37 CONTENTS Page Page 2 NE C1275 NE C1475 ...

Page 3: ...1 CONTROL PANEL 3 NE C1275 NE C1475 ...

Page 4: ...2 OPERATION PROCEDURE 4 NE C1275 NE C1475 ...

Page 5: ...5 NE C1275 NE C1475 ...

Page 6: ...6 NE C1275 NE C1475 ...

Page 7: ...7 NE C1275 NE C1475 ...

Page 8: ...8 NE C1275 NE C1475 ...

Page 9: ...3 SCHEMATIC DIAGRAM 9 NE C1275 NE C1475 ...

Page 10: ...4 WIRING DIAGRAM 10 NE C1275 NE C1475 ...

Page 11: ...The relation between indictions on the control panel and the output of the microwave oven is as shown in table NOTE 1 The ON OFF time ratio does not correspond with the percentageof microwave power since approximately 2 seconds are required for heating of magnetron filament NOTE 2 ON OFF time of power relays are changed by digital programmer circuit when remaining cooking time or selected cooking ...

Page 12: ...al programmer circuit generates the power relays control signals at a specific timing as shown in figure 2 When the oven temperature reaches the predetermined temperature the digital programmer circuit stops supplying power relays control signas resulting in both upper to turnoff 3 When the oven temperature drops below the predetermined temperature the digital programmer circuit generates power re...

Page 13: ...lying power relays control signals resulting in heaters to turn off During this digital programmer circuit continues supplying power relay 1 3 contol signal so that microwave activity continue at predetermined duty ratio as shown in figure The microwave activity continue to cycle until entire cooking programme is completed 3 When the oven temperature drops below the selected temperature the digita...

Page 14: ...m the outlet and short the terminal of the high voltage capacitor terminal of lead wire from diode to chassis ground with and insulated handle screwdriver or insulated jumper lead wire to discharge WARNING There is high voltage present with high current capabilities in the circuits of the high voltage winding and filament winding of the high voltage transformer It is extremely dangerous to work on...

Page 15: ...ws of the oven etc are neither loose nor missing Microwave might leak if screws are not properly tightened 2 Make sure that all electrical connections are tight before inserting the plug into the wall outlet 6 6 Avoid inserting nails wire etc through holes in unit during operation Never insert a wire nail or any other metal object through the lamp holes on the cavity or any other holes or gaps bec...

Page 16: ...use a soldering iron or desoldering tool of more than 30 watts on DPC contacts 1 Using solder wick or a desoldering tool and 30W soldering iron carefully remove all solder from the terminal pins of the power relays 2 With all the terminal pins cleaned and separated from DPC contacts remove the defective power relay s and install new power relay s making sure all terminal pins are inserted complete...

Page 17: ... 7 5 Antenna motor 1 To remove the antenna motor carefully place the unit on its left side 2 Remove 2 screws holding motor cover 3 Remove 2 screws holding antenna motor 4 Disconnect motor lead wire 7 6 Floor shelf and or moving antenna 1 Insert a philips type screwdriver or equivalent approx 2 5cm in shaft length in the hole of left side oven wall as shown in Figure 2 Carefully lift up the floor s...

Page 18: ...voltage terminal of the high voltage transformer during any cook cycle 2 It is neither necessary nor advisable to attempt measurement of the high voltage 3 Before touching any oven components or wiring always unplug the oven from its power source and discharge the high voltage capacitor 8 1 High voltage transformer 1 Remove connections from the transformer terminals and check continuity 7 8 Upper ...

Page 19: ...teries should be used to check the front to back resistance of the diode otherwise infinite resistance may be read in both directions A normal diode s resistance will be infinite in one direction and several hundred KΩ in the other direction 8 4 Magnetron Continuity checks can only indicate an open filament or a shorted magnetron To diagnose for an open filament or shorted magnetron 1 Isolate magn...

Page 20: ...ets specifications Low voltage condition will cause a reduction in magnetron output Temperature readings and 8 7 To test the oven temp sensor thermistor This sensor monitors the heat produced by the heater circuit and maintains the oven temperature the user has selected Normal room temperature especially in a kitchen can vary anywhere from 10 C to 32 C The reading across the oven sensor thermistor...

Page 21: ... in a false reading or damage to your meter 5 Do not touch any parts of the circuitry on the digital programmer circuit since static electric discharge may damage this control panel Always touch yourself to ground while working on this panel to discharge any static charge in your body 6 A 230 240V AC is present at the shaded area of the digital programmer circuit Terminals of power relays and swit...

Page 22: ...22 NE C1275 NE C1475 ...

Page 23: ...23 NE C1275 NE C1475 ...

Page 24: ...24 NE C1275 NE C1475 ...

Page 25: ...25 NE C1275 NE C1475 ...

Page 26: ...11 EXPLODED VIEW AND PARTS LIST 26 NE C1275 NE C1475 ...

Page 27: ...27 NE C1275 NE C1475 ...

Page 28: ...C 1 15 ANE0922000JQ CUSHION RUBBER C 1 16 ANE000Z000AB CUSHION RUBBER C 8 17 ANE0924000AJ CUSHION RUBBER C 1 18 ANE0926000CE CUSHION RUBBER 2 19 ANE0927000BK CUSHION RUBBER 1 20 A100A 3B40 BASE 1 21 A100L3230BP BACK PANEL COVER 1 22 A100Q3230BP BACK PANEL 1 23 A1007 3280 RUBBER FOOT A 4 24 A1008 3280 RUBBER FOOT 4 25 A10263030GP OVEN LAMP COVER U 1 26 ANE10288U0AP ANTENNA MOTOR COVER 1 27 A1047323...

Page 29: ...3030GP PC BOARD H U 1 81 A605Y3880BP OVEN TEMP SENSOR 1 82 A610A3230BP SAFETY SWITCH A 1 V 16G 3E6 83 A61413230BP LATCH SWITCH A 1 V 15G 3C26 84 ANE61448V0AP ANTENNA MOTOR 1 3W 85 A61455850GP THERMAL CUTOUT 2 FOR MAGNETRON 86 A61523230BP SOCKET 1 87 A61983230BP MOTOR BRACKET 1 88 A620X3230BP CHANGE OVER SWITCH 1 V 15G 1E5 M 89 A6202 3X2 DIODE SI 0 35A 2 90 J621B3C50BP H V TRANSFORMER 2 1 4kVA NE C...

Page 30: ...P RING 1 HEATER FAN MOTOR 128 XWA4BV WASHER 1 HEATER FAN MOTOR 129 XWC4BPN WASHER 1 OVEN LAMP COVER 130 XWG4BV WASHER 1 HEATER FAN MOTOR 131 XTEANE3 6BJ SCREW 4 3 6 THERMAL CUTOUT 132 A2387 3810 ADIABATIC MATERIAL J 1 133 XYCA4 EE8J SCREW 6 4 8 CAPACITOR BRACKET FAN MOTOR DIODE WASHER 134 XYC4 F16XN SCREW 4 4 16 HEATER SUPPORT 135 XYD4 EE12FJ SCREW 2 4 12 EARTH 136 XYE6 F20FJ SCREW 1 6 20 EARTH 13...

Page 31: ...EY SPRING 1 D9 ANE30562Q0AP HANDLE PIN 2 D10 ANE3070P60AP HANDLE PEICE A 1 D11 A30853C50BP DOOR C 1 D12 ANE3134P60AP HANDLE PIECE B 1 D13 A31463230BP DOOR SCREEN B U 1 D14 A31473230BP HANDLE PIECE C 1 D15 XYN4 J30FN SCREW 2 4 30 D16 A32133230BP DOOR HANDLE SPACER 2 D17 A32163230BP HANDLE SPACER 2 D18 XTBANE4 12FKJ SCREW 4 4 12 BLACK D19 XYN4 F25FN SCREW 2 4 25 D20 A33343C50BP DOOR GASKET RUBBER 1 ...

Page 32: ...NT E4 A605Q3C50BP PC BOARD F U 1 SD CARD SLOT E5 RP SD016BCS0 SD MEMORY CARD 1 W MEMORY WROTE E6 A83373C50BP ESCUTCHEON SHEET 1 E7 XTW3 10BJ SCREW 8 3 8 E8 A64793C50BP MEMBRANE SWITCH 1 E9 A4898 3B40 SCREW 1 SD SLOT COVER E10 A800N 3B40 ESCUTCHEON A 1 NOTE 1 E11 A80343C50BP ESCUTCHEON BASE 1 E12 ANE0962000DE CUSHION RUBBER D 1 E13 A80023C50BP ESCUTCHEON B 1 SD SLOT COVER E14 A8032 3B40 SD BRACKET ...

Page 33: ...R SHEET 1 P7 A01083C50BP TRAY PACKING A 1 P8 A01173230BP TRAY PACKING B 1 P9 A01453230BP DOOR SHEET B 1 P10 A01173C50BP TRAY PACKING B 1 P11 A04243C60EU INSTRUCTION BOOK B 1 NE C1475EUG P12 A04203C50BP OPERATING GUIDE 1 NE C1275BPQ P12 A04203C60EU OPERATING GUIDE 1 NE C1475EUG P13 A06023C50BPS WIRE RACK SHELF U 1 P14 A06033230GP CERAMIC INSULATING TRAY 1 P15 A02843560BP NUMBER LABEL 1 P16 A400B384...

Page 34: ...1 2SD06390Q TRANSISTOR SI 0 6W 1 2SD639 PQRS R551 ERDS2TJ681T CARBON FILM RESISTOR 1 680Ω 1 4W 5 R552 ERDS2TJ184T CARBON FILM RESISTOR 1 180KΩ 1 4W 5 R553 ERDS2TJ103T CARBON FILM RESISTOR 1 10KΩ 1 4W 5 REF NO 106 NOISE FILTOR U A692Y3C60EU C1 ECQU2A105MLA POLYESTER CAPACITOR 1 l 0MF 250V C2 3 ECQU2A472MLA POLYESTER CAPACITOR 2 0 0047MF 250V C4 ECQU2A684MLA POLYESTER CAPACITOR 1 0 68MF 250V CN1 K1K...

Page 35: ...17 DIGITAL PROGRAMMER CIRCUIT SCHEMATIC DIAGRAM 35 NE C1275 NE C1475 ...

Page 36: ...36 NE C1275 NE C1475 ...

Page 37: ... 2W 5 CN6 K1KA03A00387 Connector 1 Red 3 pin AEEMMF00703R CN5 K1KA03AA0086 Connector 1 White 3 pin B03B XASS 1 T LF SN CN3 K1KA05A00237 Connector 1 White 5 pin AEEMMF01F05W Q180 Q213 Q220 Q222 Q223 Q224 Q225 Q226 Q227 Q228 Q229 Q230 Q231 Q232 Q233 B1ABCF000010 Chip Transistor Si 0 2W 15 2SC2412KT146 Q211 Q311 B1ADCF000001 Chip Transistor Si 0 2W 2 2SA1037AKT Q314 B1CBGD000001 Chip Transistor Si 0 ...

Page 38: ...MN101C66GDB1 LSI 1 MEC MN101C66G DISP110 A67523C50BP Display sheet 1 D10 B0JAMK000017 Diode Si 1 5A 1 AESSRK19 IC26 IC27 B3PAA0000387 IC 2 AEICP25011HL IC230 B3PAC0000128 Photo Coupler IC 1 TLP665J D4 S C25 ECA2WHG220E Electric Capacitor Al 1 22MF 450V 105C C230 ECQU2A104MNA MP Capacitor 1 0 1MF 250V R230 ERG1SJ101P Metal Oxcide Resistor 1 100Ω 1W 5 R231 ERQ12AJ201P Fuse Resistor 1 200Ω 1 2W 5 R23...

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