NE-3280 NE-2180 NE-2180C
Contents
1. B AM MONITOR S W RIGHT A51583030GP MONITOR S W LEFT A61583050GP A SECONDARY INTERLOCK S W RIGHT TYPE V 15G 3C26 6142 60 AT A SECONDARY INTERLOCK S W RIGHT 2067 3 108 AB14230G0GP LAN SECONDARY INTERLOCK S W LEFT V 15G 3C26 ANE6142 F60 A SECONDARY INTERLOCK S W LEFT A 20G7 3C 108 A61423030GP INTERLOCK U S P4942516 A00G33A40AP Sw 11 DISASSEMBLY AND PARTS REPLACEMENT CAUTION IServicemen should remove their watches whenever working close to or replacing the magnetron 11 1 Magnetrons Upper and Lower Upper magnetrons Right and Left 1 Discharge electric charge remaining on the high voltage capacitors 2 Remove the entire rear panel by removing screws as shown in figure 3 Disconnect all lead wires from magnetron and thermal cutout 4 Remove the 4 screws holding magnetron 5 Remove 2 screws holding thermal cutout 6 Remove the mounting bracket from magnetron and install it on the new magnetron Lower magnetrons Right and Left 1 Discharge electric charge remaining on the high voltage capacitors 2 Remove the entire rear panel by removing screws as shown in figure 3 Disconnect all lead wires from magnetron and thermal cutout 4 Remove the 4 screws holding magnetron 5 Re2. ee 26 F83 No voltage supply to 1 Relay failure RY 7 C is appeared when failure occured high voltage trans upper left Loose connector CN260 CN261 2 Digital programmer circuit failure NE 3280 NE 2180 2180 DISPLAY CONDITIONS POSSIBLE CAUSE TIMING OF FAILURE INDICATION F89 Shorted contacts of RY 1 Relay failure RY 9 D It is appeared when failure occured 9 2 Digital programmer circuit failure ITROUBLEJ Oven does not operate at all or oven does not start cooking NE 2180 2180 DISPLAY CONDITIONS POSSIBLE CAUSE TIMING OF FAILURE INDICATION Open temperature 1 Temperature sensor failure It is appeared when failure occured Sensor exhaust 2 Digital programmer circuit failure 3 Loose connector CN5 F34 Short temperature 1 Temperature sensor failure It is appeared when failure occured sensor exhaust 2 Digital programmer circuit failure F44 1 Shorted membrane switch It is appeared 2 minutes after failure occured F01 Exhaust temperature 1 Burning food in the oven due to over cook l is appeared when exhaust temperature With continuous exceeds 120 C exceeds above 120 C beep sounds FO3 Input voltage exceed 1 Increase in power source voltage lt is appeared when the unit is plugged in 12 596 Note that it returns normal operation mode bv tapping the STOP pad F04 Input voltage is less 1 Decrease in power source voltage It is appeared when the unit is plugged in tha
3. 3280 NE 2180 2180 Part No Part Name amp Description Pcs Set Remarks A03623560GP LEAD WIRE 1 NE 2180 C A03633560GP LEAD WIRE 1 A60403570AP SURGE ABSORBER A 1 NE 2180 A03653560GP LEAD WIRE 1 A03693560GP LEAD WIRE 1 A03703560GP LEAD WIRE 1 A03723A60BP LEAD WIRE 1 NE 2180 A60403590AP SURGE ABSORBER B 1 NE 2180 A50966520UP FERRITE CORE 4 NE 2180C A606W3560GP PROTECTOR DIODE B 2 NE 3280 A606V3580GP PROTECTOR DIODE 2 NE 2180 C A606V3560GP PROTECTOR DIODE 2 NE 3280 Ref No Part No Part Name amp Description Pcs Ser Remarks REF NO 76 P C BOARD B U AEGHPUG3640 1 A XYN3 F8S6 1 3X8 2502012 1 ERDS2TJ163T 1 NE 2180 C 16KQ 1 4W 5 C250 1 222 1 2200MF 50V CN250 AEEMMD1FF09W 1 9PIN CN251 AEEMMD7FF11N 1 11PIN CN252 AEEMMD04907W 1 7PIN CN254 AEEMMDO1FO5W 1 5PIN D250 D251 MA196 TAS DIODE SI 20 D252 D25 3 D254 D2 55 D256 D 257 D258 D259 D260 D261 D26 2 D263 D2 64 D265 D 267 D269 D271 D273 IC250 IC2 AEICPS2505 Ic 4 NE 3280 51 1 252 253 IC250 IC2 JAEICPS2505 IC 2 NE 2180 C 53 JPR250 ERDS2TJ163T CARBON FILM RESISTOR 1 NE 2180 C 16KQ 1 4W 55 JPR250 ERDS2TJ622T CARBON FILM RESISTOR 1 NE 3280 6 2KQ 1 4W 5 0251 2SD637 PORS TRANSISTOR SI 1 R250 ERDS2TJ332T CARBON FILM RESISTOR 1 3 3KQ 1 4W 5 R251 R252 ERDS1TJ104T CARBON FILM RESISTO
4. 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 released to the owner E microwave leakaqe check to verify compliance with the Federal Performance Standard should be performed on each oven prior to release to the owner Page 11 DISASSEMBLY AND PARTS REPLACEMENT 17 12 COMPONENT TEST PROCEDURE 21 13 MEASUREMENTS AND ADJUSTMENTS 23 14 PROCEDURE FOR MEASURING RADIATION LEAKAGE 24 15 TROUBLESHOOTING GUIDE M 26 16 EXPODED VIEW AND PARTS LIST 28 17 PARTS LIST 18 DOOR ASSEMBLE 19 ESCUTCHEON BASE ASSEMBLE 35 20 PACKING AND 96 NE 3280 NE 2180 2180 21 WIRING MATERIAL 37 23 DIGITAL PROGRAMMER 42 22 DIGITAL PROGRAMMER CIRCUIT 40 NE 3280 NE 2180 2180 1 CONTROL PANEL 1 2 3 16 4 5 6 7 behind Air Filter 12 11 O 19 PROG PROG LOCK Digital Display Window see below 10 Air Filter Power Le
5. Part No Part Name amp Description Pcs Set NE 3280 NE 2180 2180 XYEANE4 C16T SCREW 4x16 XYEANE4 C16T SCREW 4x16 A30853030GP DOOR C 0245 00 DHHS LABEL NE 3280 NE2180 ANE01728U0CP CAUTION LABEL NOTE Please order DHHS label together 19 ESCUTCHEON BASE ASSEMBLE Part No B 15 e Part Name amp Description Pcs Set S 3A4 APR A03613560GP TIMER A603L3590GP D P CIRCUIT U A RTL W COMPONENT A63433030GP TIMER BRACKET NE 3280 NE 2180 A64793570AP MEMBRANE SWITCH A A800D3060GP TIMER KNOB A80013060GP ESCUTCHEON A NE 3280 NE 2180 A80023030GP ESCUTCHEON B A80063030GP ESCUTCHEON D A80163030GP ESCUTCHEON SPACER A80343060GP ESCUTCHEON BASE NE 3280 NE 2180 A81263060GP SMOKE PANEL NE 3280 NE 2180 A82873030GP SPACER A NE 3280 NE 2180 A83423060GP CUSHION RUBBER B NE 3280 NE 2180 ANE0911000AB CUSHION RUBBER B NE 3280 NE 2180 09610002 CUSHION D 09610002 CUSHION RUBBER D 35 o H NE 3280 NE 2180 2180 20 PACKING AND ACCESSORIES Cut into three parts when packing OVEN WALL TRAY PACKING TRAY PACKING B MI TI S 3A
6. 10 1 Check the grounding Do not operate on a 2 wire extension cord The microwave oven is designed to be used when grounded It is imperative therefore to make sure it is grounded properly before beginning repair work 10 2 Warning about the electric charge in the high voltage capacitor Figure For about 30 seconds after the oven is turned off an electric charge remains in the high voltage capacitor When replacing or checking parts remove the power plug from 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 or near these circuits with oven energized DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron WARNING Never touch any circuit wiring with your hand nor with an insulated tool during operation 10 3 When parts must be replaced remove the power plug from the outlet When the 15 Amp NE 2180 NE 2180C or 20 Amp NE 3280 fuse is blown due to the operation of interlock monitor replace the necessary components according to the following table 10 4 TERMINAL OF HIGH VOLTAGE CAPACITORS DIODE T DIO
7. High voltage transformer 1 Remove connections from the transformer terminals and 21 NE 3280 NE 2180 2180 FILAMENT WINDING TERMINALS PRIMARY WINDING SECONDARY WINDING TERMINALS CHASSIS 08 066M HIGHEST VOLTAGE CAPACITOR ANTENNA HIGHEST OHM SCALE 12 6 Diode 1 Isolate the diode from the circuit by disconnecting the leads 2 With the ohmmeter set on the highest resistance scale measure the resistance across the diode terminals Reverse the meter leads and again observe the resistance reading Meter with 6V 9V or higher voltage batteries should be used to check the front to back resistance of the diode otherwise an infinite resistance may be read in both directions A normal diode s resistance will be infinite in one direction and several hundred in the other direction 22 12 7 Membrane key board Membrane switch assembly Check continuity between switch terminals by tapping an appropriate pad on the key board The contacts assignment of the respective pads on the key board is as shown in digital programmer circuit 12 8 Protector diode 1 lsolate the protector diode assembly from the circuit by disconnecting its leads 2 With the ohmmeter set on the highest resistance scale measure the resistance across the protector diode terminals Reverse the meter leads and again observe the resistance reading A normal protector diode s resistance will be infinite in both dire
8. INTERLOCK SWITCH SAFETY SWITCH A 08 069M OVEN 08 068M To measure 2 use stainless steel ruler is convenient which available from spare part route Part No A13005 150 14 PROCEDURE FOR MEASURING RADIATION LEAKAGE WARNING Check for radiation leakage after every servicing Should the leakage be more than 2 mW square centimeter 1mW square centimeter for Canada infrorm PASC PSC or PCI immediately Aftr repairing or replacing any radiation safety device keep a written record for future reference as required by D H H S and Health and Welfare Canada regulation This requirement must be strictly observed In addition the leakage reading must be recorded on the service repair ticket while in the customer s home 24 NOTE The U S government standard is 5mw square centimeter while in the customer s home 2mw square centimeter stated here is Panasonic s own voluntarv standard 14 1 Equipment Electromagnetic radiation monitor NE 3280 NE 2180 2180 Glass thermometer 212 F or 100 C 600cc glass beaker 14 4 Atleast once a year have the radiation monitor checked for 14 2 Procedure for measuring calibration by its radiation leakage manufacturer Note before measuring 1 Do not exceed meter full scale deflection Leakage monitor WARNING initi high le should ni LS SEE Tohe highest scale AVOID CONTACTING ANV HIGH VOLTAGE PARTS 2 To prevent false readings the test probe sho
9. POWER RELAY D POWER RELAY C POWER RELAY B POWER RELAY A POWER RELAY D POWER RELAY C POWER RELAY B POWER RELAY A NE 2180 NE 2180C POWER RELAY D POWER RELAY A POWER RELAY D POWER RELAY A POWER RELAY D POWER RELAY A resulting in no microwave power NOTE Defrost time selected is converted into seconds by the DPC but display will show selected time in minutes and 9 1 Defrost control When defrost power and defrosting time is selected and Start pad is touched 1 The digital programmer circuit DPC divides the total seconds as programmed The total number of seconds defrosting time into 8 equal periods consisting of four is divided into 8 time periods The remainder seconds defrosting periods each followed by a standing period not equally divisible by 8 are added to the last standing See figure time period 2 During defrosting power periods power relay ON OFF time is controlled at Low power mode by DPC 3 During Standing periods power relay is always open 15 NE 3280 NE 2180 2180 TOTAL DEFROSTING TIME T 96 004M 10 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING Unlike manv other appliances the microwave oven is high voltage high current equipment Though it is free from danger in ordinarv use extreme care should be taken during repair CAUTION Servicemen should remove their watches whenever working close to or replacing the magnetron
10. 2 NE 2180 C 50 A31123030GP DOOR HOOK B 2 NE 3280 51 A31363030GP HOOK SPACER A 2 51 A31363030GP HOOK SPACER A 2 52 ANE3155 610 SPRING 2 52 ANE3155 610 SPRING 2 53 ANE3157 610 PACKING RUBBER 2 53 ANE3157 610 PACKING RUBBER 2 54 A31863A40BP DOOR PANEL 1 NE 3280 54 A31863A60BP DOOR PANEL 1 NE 2180 54 A31863A60CP DOOR PANEL 1 NE 2180C 55 A32493030GP DOOR SWITCH LEVER 2 55 A32493030GP DOOR SWITCH LEVER 2 56 A32523030GP DOOR ARM SPACER 2 56 A32523030GP DOOR ARM SPACER 2 57 A33373030GP DOOR ARM LEVER 2 31 NE 3280 NE 2180 2180 Ref No Part No Part Name amp Description Pcs Set Remarks 57 A33373030GP DOOR ARM LEVER 2 58 A400B3040AP AIR FILTER FLAME U 2 59 A400C3040AP EXHAUST GUIDE B 1 60 A402N3030GP EXHAUST GUIDE A 1 61 A40253030GP AIR GUIDE 2 61 A40253030GP AIR GUIDE A 2 62 A40263030GP AIR GUIDE B 1 63 A40313030GP AIR GUIDE C 1 64 A40423040AP AIR GUIDE F 2 64 A40423040AP AIR GUIDE F 2 65 A40473560GP AIR GUIDE E 1 66 A40923030GP FILTER HANDLE 2 66 A40923030GP FILTER HANDLE 2 67 A40963030GP INSULATION SHEET 1 68 ANE42408U0AP FILTER HANDLE B 2 68 4240800 FILTER HANDLE 2 69 A490W3570AP FAN MOTOR 1 3280 69 A490W3590AP FAN MOTOR A 1 NE 21
11. 3280 NE 2180 2180 4 WIRING DIAGRAM NE 3280 USA NOTE When replacing check the lead wire colour as shown RELAYS AND CONNECTOR WIRING ON TOP OF OVEN CN263 CN262 CN261 CN260 RY11 RY12 RY13 RY14 CN259 ce ja at SIE CN257 CN256 SWITCH WIRING Safetv Switch A Safetv Switch A PRIMARY PRIMARY Short Switch Short Switch MONITOR MONITOR Safety Switch B Safety Switch B SECONDARY SECONDARY oR ORANGE BR BROWN BL BLUE Ww 3280 NE 2180 2180 5 SCHEMATIC DIAGRAM 2180 0101 10 EZ L mm 199 888 39V11OA vavNv2 20812 3 WVHOVIQ DLLVWN3HOS NE 3280 NE 2180 2180 6 WIRING DIAGRAM NE 2180C CANADA NOTE When replacing check the lead wire colour as shown RELAYS AND CONNECTOR WIRING ON TOP OF OVEN CN263 CN262 261 260 RY11 RY12 RY13 RY14 CN259 CN258 c O 257 256 SWITCH WIRING Safety Switch Safety Switch A PRIMARY PRIMARY GR eX Short Switch SYMBOL B BLACK Safety Switch B Safety Switch B R RED OR _ ORANGE SECONDARY SECONDARY GR GREY BR BROWN BL BLUE Ww WHITE 3280 NE 2180 2180 7 SCHEMATIC DIAGRAM NE 2180 USA JDVLIOA H9IH NOLLAVO VSN 0812 3
12. BLOWN DISTINGUISHED BV COLOR OF PLASTIC BLACK WHITE BLACK WHITE TERMINAL HOUSING A A Fuss TYPEMDANRATED204250V ANE6595P40AP AX AN FUSE TYPE MDARATED 15A 250V ANE6230PS0AP B woNrTOR E SW B A A MONTORSW RIGHT TYPE303GP A61583030GP 2 A C LAL TA L MONITOR SW LEFT TYPE30SGP A61583050GP L I AN SECONDARY INTERLOCK S W RIGHT TYPE V 15G 3C26 ANE6142 F60 A SECONDARY INTERLOCK S W RIGHT A 20G7 3C 108 A61423030GP AX AX SECONDARY INTERLOCK S W LEFT V 15G 3C26 ANE6142 F60 A SECONDARYINTERLOCK S W LEFT A 20G7 3C 108 A51423030GF INTERLOCK U S P4942516 A00333A40AP sw 23 NE 3280 NE 2180 2180 13 3 Adjustment of the primary interlock switch SAFETY SWITCH Right and Lett side 1 Switch operation When the door is slightly opened the contacts of primary interlock switch opened to give digital programmer circuit the information that the door is opend The allowable movement of the door from the closed position to the operating position shown as liter of the switch when it opens the circuit is specified as follows PRIMARY INTERLOCK SWITCH liter 1 mm 3 mm When primary interlock switch opens the circuit NOTE Make sure that primary interlock switch turn off prior to the secondary interlock sw
13. D H H S U S A models or Radiation Emitting Devices Act Health and Welfare Canada Canadian models It is very important all repairs should be made in accordance with procedures described in this manual to avoid being exposed to excessive microwave radiation 3 Check for radiation leakage before and after every servicing according to the procedure for measuring radiation leakage 4 If the unit cannot be repaired on site advise the customer not to use until unit be repaired 5 Any serviceman who learns of any accident pertaining to microwave radiation leakage including the oven operating with open door should immediately notify the appropriate address listed below and Center for Devices and Radiological Health DHHS IN U S A Panasonic Services Company PASC 50 Meadowland Parkway Secaucus New Jersey 07094 Attention Technical Service Division 201 348 7000 IN CANADA PCI IN PUERTO RICO PSC PSC San Gabriel Industrial Park 65th Infantry Ave Km 9 5 Carolina Puerto Rico 00985 809 750 4300 Panasonic Canada Inc 5770 Ambler Drive Mississauga Ontario L4W2T3 905 624 5010 6 There are special components used in the microwave oven which are important for safety These parts are marked with a N on the replacement parts list It is essential that these critical parts should be replaced with manufacturer s specified parts to prevent microwave leakage shock fire or other hazards Do not modify the origin
14. DISPLAY 1 Follow steps 1 to 4 for memory setting for single stage 2 Tap POWER pad twice Set to MED power 3 Set the desired heating time by turning the timer dial Set to 2 minutes 4 Touch PROG pad again Heating time is displayed by adding single and 2nd stage heating time n n HI MED 5 3 seconds after the display window will become blank NOTE For a 3rd stage heating cycle select a further power level and dial in a time between steps 3 and 4 above NE 3280 NE 2180 2180 5 Memory pad heating 6 To Read the Cycle Counter OPERATION OPERATION 1 Plug the power supply cord into wall receptacle 2 Open the door Place a water load in the oven and close the door PROG switch The display shows the number of times the oven has been used 3 Tap 5 pad 3 3 seconds later the display will go 12 nin blank HI MED 4 Tap pad tiet otage 5 c NOTE Total cumulative number includes programming memory RE heating and manual heating number of times has been used Cooking times over 99 999 times will be back 0 5 2nd stage 7 To Activate Program Lock MEI 1 Plug the power supply cord into wall receptacle 6 When the time is up you hear 3 beeps Do not open the door sounds 2 Press and hold switch until the display show PROG P and 7 Open the door and take out the water load for more than 5 seconds 3 Program lock feature now activated 8 Close
15. FILTER COIL NE 2180C 22 DIGITAL PROGRAMMER CIRCUIT SCHEMATIC DIAGRAM 40 NE 3280 NE 2180 2180 ololol0101 10 GOOG ge m Si av 9 mis oy awe E wo H 3 Pike Do il ms ono 90 uv ist faepe qne ww WES t ee Cae wee cue 41 NE 3280 NE 2180 2180 IC1 M38121FP EXPLERE 0 EE SPS CS ae O riis p 7727708 12 0280 0270 0271 RY12 RY13 AEGSJTEMTAB AEGSJIEMISB 23 DIGITAL PROGRAMMER CIRCUIT PARTS LIST 42 Ref No Part No Description Pcs set NE 3280 NE 2180 2180 Remarks 10 12 13 15 16 17 19 22 26 29 50 1042 CERAMIC CAPACITOR 10 0 1MF 50V ECA1HM221B ELECTROLYTIC CAPACITOR AL 220MF 50V 1 100 ELECTROLYTIC CAPACITOR AL 10MF 16V ECEAIHKA2R2B ELECTROLYTIC CAPACITOR AL 2 2MF 50V C20 C21 C23 C24 C2 1 1032 5 CERAMIC CAPACITOR 0 01MF 25V C25 ECBT1H101KB5 CERAMIC CAPACITOR 0 0001MF 50V C30 C31 C32 C33 ECBT1H681KB5 CERAMIC CAPACITOR 680PF CN1 AEEMMFOOF04W CONNECTOR APIN CN2 AEEMMD1FF09W CONNECTOR 9PIN CN3 AEEMMD7FF11N CONNECTOR 11PIN C
16. Increase in power source voltage It is appeared when the unit is plugged in 12 5 Note that it returns normal operation mode by tapping the STOP pad 0 Input voltage is less 1 Decrease in power source voltage It is appeared when the unit is plugged in than 12 5 Note that it returns normal operation mode by tapping the STOP pad 4 5 Memory failure 1 Digital programmer circuit failure No display 1 25A fuse blown 1 Low Voltage transformer failure No display 1 25A fuse is 1 Thermal cutout failure 2 Low voltage transformer failure 3 Digital programmer circuit failure No voltage supply to 1 Relay failure RY 3 It is appeared when failure occured high voltage trans 2 Loose connector CN256 CN257 lower left 3 Digital programmer circuit failure No voltage supplv to 1 Relav failure RY 5 B is appeared when failure occured high voltage trans lower right 2 Loose connector CN258 CN259 3 Digital programmer circuit failure No voltage supply to 1 Relay failure RY 9 C is appeared when failure occured high voltage trans upper right Loose connector CN262 CN263 2 Digital programmer circuit failure Shorted contacts of RY 1 Relay failure RY 3 It is appeared when failure occured Shorted contacts of RY 1 Relay failure RY 5 It is appeared when failure occured Shorted contacts of RY 1 Relay failure RY 7 C It is appeared when failure occured
17. V T MOUNTING 2 106 A65513030GP H V T MOUNTING 2 107 A65613030GP BUZZER CASE 1 108 A05103040AP CAUTION LABEL 1 NE 3280 NE 2180 108 A05103570CP CAUTION LABEL 1 NE 2180C 109 A65953170GP FUSE B 1 A 1 25A 110 A66033040AP OVEN LAMP BRACKET 1 111 A66263040AP THERMAL CUTOUT MOUNT 2 112 A692Y3570AP NOISE FILTER 0 1 A NE 3280 NE 2180 112 A692Y3570CP NOISE FILTER U 1 NE 2180C 113 ANE01728U0CP CAUTION LABEL 1 113 ANE01728U0CP CAUTION LABEL 1 114 A83613030GP SWITCH SPACER 115 A900C3A40AP AC CORD W PLUG U 1 A NE 3280 115 B900C3570AP AC CORD W PLUG U 1 NE 2180 C 116 XTC4 10FC SCREW 4X10 FOR ESCUTCHEON BASE 117 XYN4 F18S SCREW 4 4X18 FOR DOOR HOOK B 117 XYN4 F18S SCREW 4 4X18 FOR DOOR HOOK B 118 XYN4 F12S SCREW 4 4X12 FOR DOOR SWITCH 118 XYN4 F12S SCREW 4 4X12 FOR DOOR SWITCH 119 ANE9080 730 CLIP YELLOW 2 NE 2180 C 119 ANE9080 730 CLIP YELLOW 3 NE 3280 119 9080 730 CLIP YELLOW 2 NE 2180 C 119 ANE9080 730 CLIP YELLOW 2 NE 2180 C 119 ANE9080 730 CLIP YELLOW 2 NE 2180 C 120 ANE90828U0AP CLIP BLACK 2 120 ANE90828U0AP CLIP BLACK 2 121 ANE9082930AP CLIP 8 121 ANE9082930AP CLIP 8 121 ANE9082930AP CLIP 8 121 ANE9082930AP CLIP 8 121 ANE9082930AP CLIP 8 121 ANE9082930AP CLIP 8 122 A98363030GP CASE 1 123 A02433560GP TERMINAL LABEL 1 NE 3240 NE 2140 124 XST4 6VS SCREW 8 4X6 FOR ANTENNA 124 XST4 6VS SCREW 8 4X6 FOR ANTENNA 124 XST4 6VS SCREW 8 4X6 FOR ANTENNA 124 XST4
18. normal capacitor will show continuity for a short time and then indicate 9MQ once the capacitor is charged Secondary Interlock Switch SAFETY SWITCH B and shorted capacitor will show continuous continuity Power Relay 4 An open capacitor will show constant 5 Resistance between each terminal and chassis should be 1 Unplug the power cable infinite 2 Unplug lead wire connectors to Power Relay RY2 16 and verify continuity of the power relay terminals 12 5 Mag netron 3 Unplug lead wire connectors to Primary Interlock Switch ntinuitv checks can only indicate an open filament a and Secondarv Interlock Switch Continuity P shorted magnetron diagnose for openfilament 4 Test the continuity of switches with the door in both open shorted magnetron and closed positions with ohm meter low scale Normal continuity readings should be as follows 2 continuity check across magnetron filament terminals Primary open 00 should indicat 4 Switch uld indicate one ohm or less close continuity check between each filament terminal and Switch magnetron case should read open Power Relays 0 open 00 close 12 2 Short Monitor Switch Both Right and Lett Door Opened Door Closed NO Terminals open 00 close 1 lsolate magnetron from the circuit by disconnecting the leads Terminals 00 close Q open 12 3
19. 000 CUSHION RUBBER 0917000 CUSHION RUBBER ANE0921000CG CUSHION RUBBER 0002000 CUSHION RUBBER 0002000 CUSHION RUBBER 0002000 CUSHION RUBBER 0002000 CUSHION RUBBER 0002000 CUSHION RUBBER 0002000 CUSHION RUBBER 0002000 CUSHION RUBBER 0002000 w w t u w w w w w CUSHION RUBBER 30 NE 3280 NE 2180 2180 Ref No Part No Part Name amp Description Pcs Set Remarks 15 ANE000Z000AA CUSHION RUBBER C 14 15 0002000 CUSHION RUBBER 14 15 0002000 CUSHION RUBBER 14 15 0002000 CUSHION RUBBER 14 16 ANE0922000JE CUSHION RUBBER C 1 17 0002000 CUSHION RUBBER 2 17 0002000 CUSHION RUBBER 2 17 0002000 CUSHION RUBBER 2 18 ANE0924000AB CUSHION RUBBER C 2 18 ANEO924000AB CUSHION RUBBER C 2 19 A100A3560BP BASE 1 NOTE 20 A10003560GP BACK PANEL 1 21 A10083030GP RUBBER FOOT 2 21 A10083030GP RUBBER FOOT 2 22 A10093030GP CABINET BODY U 1 23 A10133030GP LEFT SIDE SAS
20. 2180 C 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F NE 2180 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F 2180 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F NE 2180 C 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F 2180 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F NE 2180 C 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F NE 2180 C 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH ANEO911000EG CUSHION RUBBER 0911000 CUSHION RUBBER NE 2180 C 0911000 CUSHION RUBBER 3280 0911000 CUSHION RUBBER NE 2180 C 0911000 CUSHION RUBBER NE 2180 C ANEO911000MG CUSHION RUBBER NE 3280 0911000 CUSHION RUBBER 3280 0917000 CUSHION RUBBER 0917000 CUSHION RUBBER 0917
21. 220T RESISTOR 220 1 4W 5 R23 R28 R29 R33 R3 5 R45 R48 R51 R56 R57 R58 R59 R61 ERDS2TJ102T RESISTOR 1 0KQ 1 4W 5 R32 R52 R53 R54 R5 ERDS2TJ104T CARBON FILM RESISTOR 100KQ 1 4W 5 ERDS2TJ333T CARBON FILM RESISTOR 33KQ 1 4W 5 ERDS2TJ332T CARBON FILM RESISTOR 3 3kKQ 1 4W 5 ERDS2TJ472T CARBON FILM RESISTOR 4 7KQ 1 4W 5 AEDZ4R7ES3T1 ZENER DIODE SI RD4 7ES3 AEDZ5R6ES2T1 ZENER DIODE SI RD5 6ES2 AEDZ24ES3T1 ZENER DIODE SI 43 RD24ES3 WP 593 F S 3A4 APR Printed in Japan
22. 4 APR Part No Part Name amp Description Pcs Set A00033A40AP INSTRUCTION BOOK NE 3280 NE 2180 A00033A60CP INSTRUCTION BOOK NE 2180C A00873040AP MENU CARD A01023570CP PACKING CASE PAPER NE 3280 A01023590CP PACKING CASE PAPER NE 2180 C A01033030GP BOTTOM CASE A01043030GP UPPER FILLER A01053030GP LOWER FILLER A01063040AP VINYL COVER A01073030GP DOOR SHEET A01083030GP TRAY PACKING A01173030GP TRAY PACKING B A012D3050GP SHELF B A04203570AP OPERATING GUIDE SOE OOO ODO EO HE O HEE HP 601W FASTENER 36 NE 3280 NE 2180 2180 21 WIRING MATERIAL W7 Temp sensor W9 J a n RED RED W10 r W12 103 W13 far m W14 YELLOW YELLOW S 3A4 APR 37 NE 3280 NE 2180 2180 2180 2180 UPPER 4 H V CAPACITOR H V CAPACITOR To chassis W13 W13 MAGNETRON H V TRANSFORMER LOWER H V TRANSFORMER S 3A4 UPPER MAGNETRON H V TRANSFORMER H V TRANSFORMER To chassis DIODE H V CAPACITOR H V CAPACITOR DIODE To chassis To chassis MAGNETRON H V TRANSFORMER LOWER H V TRANSFORMER Part No Part Name amp Description Pcs Set A030A3A40AP LEAD WIRE HARNESS NE 3280 A030A3A60AP LEAD WIRE HARNESS NE 2180 A030A3590CP LEAD WIRE HARNESS NE 2180C A03603560GP LEAD WIRE A03623A40AP LEAD WIRE NE 3280 38
23. 6VS SCREW 8 4X6 FOR ANTENNA 124 XST4 6VS SCREW 8 4X6 FOR ANTENNA 124 XST4 6VS SCREW 8 4X6 FOR ANTENNA 125 XTC4 10BC SCREW 9 4X10 FOR CABINET BODY LAMP COVER SASH 125 XTC4 10BC SCREW 9 4X10 FOR CABINET BODY LAMP COVER SASH 125 XTC4 10BC SCREW 9 4X10 FOR CABINET BODY LAMP COVER SASH 125 XTC4 10BC SCREW 9 4X10 FOR CABINET BODY LAMP COVER SASH 125 XTC4 10BC SCREW 9 4X10 FOR CABINET BODY LAMP COVER SASH 125 XTC4 10BC SCREW 9 4X10 FOR CABINET BODY LAMP COVER SASH 126 XTC4 12BK SCREW 3 4X12 FOR BASE 126 XTC4 12BK SCREW 3 4X12 FOR BASE 127 XTEANE5 10B SCREW 4 5X10 FOR ROLLER BRACKET 127 XTEANE5 10B SCREW 4 5X10 FOR ROLLER BRACKET 128 XTWANE4 10RU SCREW 8 4X10 FOR LOWER MAGNETRON 128 XTWANE4 10RU SCREW 8 4X10 FOR LOWER MAGNETRON 128 XTWANE4 10RU SCREW 8 4X10 FOR LOWER MAGNETRON 128 XTWANE4 10RU SCREW 8 4X10 FOR LOWER MAGNETRON 129 A608E3560GP P C BOARD Q 1 NE 3280 130 ANE0962000ZE CUSHION RUBBER D 2 131 A80163060GP CUSHION SPACER 1 132 096100021 CUSHION RUBBER D 2 132 096100021 RUBBER 2 133 ANE0963000AS CUSHION RUBBER D 2 134 A10493030GP CUSHION RUBBER 2 134 A10493030GP CUSHION RUBBER 2 135 A18593560GP SHELF SUPPORT 2 136 A91433040AP CLIP A 4 NE 2180 C 136 A91433040AP CLIP A 4 NE 2180 C 136 A91433040AP CLIP A 4 NE 2180 C 137 XNW5EFN NUT 2 FOR SHELF SUPPRT 137 XNW5EFN NUT 2 FOR SHELF SUPPRT 33 NE 3280 NE 2180 2180 Part Name am
24. 80 C 70 A490Y3570AP FAN MOTOR B 1 NE 3280 70 A490Y3590AP FAN MOTOR B 1 NE 2180 C 71 5032800 MAGNETRON BRACKET 2 71 ANE50328U0AP MAGNETRON BRACKET 2 72 A622A3A40AP H V TRANSFORMER 4 A 3280 72 A622A3A60AP TRANSFORMER 2 A NE 2180 C 72 A622A3A40AP H V TRANSFORMER 4 A NE 3280 72 A622A3A40AP H V TRANSFORMER 4 A NE 3280 73 A600E3030GP TERMINAL PLATE 1 73 A600E3030BP TERMINAL PLATE 1 74 A600S3030GP CAPACITOR BRACKET 2 NE 2180 C 74 A600S3A40BP CAPACITOR BRACKET 2 NE 3280 75 A601L4000AP TEMP SENSOR 1 76 A603M3560BP P C BOARD B U 1 3280 76 A603M3580GP P C BOARD B U 1 NE 2180 C 77 A603Y3570AP L V TRANSFORMER U 1 A 78 A60304080BP INCANDESCENT LAMP 1 240V 20W 79 6040 730 LAMP 5 2 80 A61143040AP MOUNTING BRACKET 1 80 A61143040AP MOUNTING BRACKET 1 81 A60503030GP PUSH SWITCH 82 A605S3030GP PC BOARD H U 1 83 2M210 M1GL MAGNETRON 4 A NE 2180 C 83 2M244 M1GL MAGNETRON 4 A NE 3280 83 2M210 M1GL MAGNETRON 4 A NE 2180 C 83 2M210 M1GL MAGNETRON 4 NE 2180 C 84 A60733030GP OVEN LAMP COVER 85 A60903050GP H V CAPACITOR 4 A NE 2180 C 0 63MF AC2700V 85 A63903330GP H V CAPACITOR 4 A NE 3280 1 0MF AC2700V 86 A61073030GP PARTS BRACKET B 1 87 ANE6142 F60 MICROSWITCH 2 A NE 2180 C V 15G 3C26 SECONDARY INTERLOCK SWITCH 87 A61423030GP MICROSWITCH 2 A NE 3280 A20G7 3C108 SECONDARY LATCH SWITCH 88 A61424L0AG MICROSWITCH 2 A V 15G 3C26 PRIMARY INTERLO
25. CK SWITCH 88 A61424L0AG MICROSWITCH 2 A V 15G 3C26 PRIMARY INTERLOCK SWITCH 89 A6144 3280 ANTENNA MOTOR 2 A LOWER 2 5W 89 A6144 3280 ANTENNA MOTOR 2 A LOWER 2 5W 90 A61446030AP ANTENNA MOTOR 2 A UPPER 2 5W 91 A61454000AP THERMAL CUTOUT 1 A FOR OVEN 92 A61454050AP THERMAL CUTOUT 2 A FOR ANTENNA MOTOR 92 A61454050AP THERMAL CUTOUT 2 A FOR ANTENNA MOTOR 93 A61453570CP THERMAL CUTOUT 4 FOR MAGNETRON 93 A61453570CP THERMAL CUTOUT 4 A FOR MAGNETRON 93 A61453570CP THERMAL CUTOUT 4 FOR MAGNETRON 93 A61453570CP THERMAL CUTOUT 4 N FOR MAGNETRON 94 A61524210AA SOCKET 1 A 95 A61583030GP DOOR SWITCH A 1 A RIGHT MONITOR SWITCH 96 A61583050GP DOOR SWITCH B 1 A LEFT MONITOR SWITCH 97 A61703030GP INSULATION SHEET B T 98 A6202 3280 DIODE SI 4 NE 3280 98 A62024000AP DIODE SI 4 NE 2180 C 99 A62303A60BP FUSE 1 A NE 2180C 30A 100 A6231 F50 FUSE HOLDER 1 NE 2180C 101 A62383030GP SPACER 2 101 A62383030GP SPACER 2 32 NE 3280 NE 2180 2180 Ref Part Part Name amp Description Pcs Set Remarks 102 XYN5 C8BN SCREW 2 NE 3280 5X8 FOR NOISE FILTER 103 A64083040AP WASHER 2 103 A64083040AP WASHER 2 104 A65313030GP SWITCH HOLDER 1 105 6408600 WASHER 1 106 A65513030GP H
26. DES 08 072 Discharge the 4 High Voltage Capacitors Right and Left Touch chassis side first then short to the high voltage capacitor terminal 10 5 Avoid inserting nails wire etc through any holes in the 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 because such objects may work as an antenna and cause microwave leakage NE 3280 NE 2180 2180 2 Make sure that all electrical connections are tight before inserting the plug into the wall outlet 10 6 Confirm after repair 1 After repair or replacement of parts make sure that the 3 Check for microwave energy leakage Refer to procedure screws of the oven etc are neither loose nor missing for measuring microwave energy leakage For USA models only WARNING FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION EMISSION REPLACE ONLY WITH THE SAME TYPE COMPONENT MARKED BY AN WHEN REPLACING FUSE CHECK OPERATION OF DOOR INTERLOCK AND INTERLOCK MONITOR CIRCUIT AS MARKED BY N AND REPLACE ANY FAULTY COMPONENTS LOCATION OF B SECONDARY FUSE sss 9 TERMINAL HOUSING TERMINAL HOUSING CHECK WHICH FUSE IS BLOWN DISTINGUISHED BY COLOR OF PLASTIC BLACK WHITE BLACK WHITE TERMINAL HOUSING A _ FUSE TYPE MDARATED 20 250V ANE SOSPAOAP AN FUSE TYPE MDARATED 15 250V ANE amp 230P30AP
27. H 1 24 A10143030GP RIGHT SIDE SASH 1 25 A10203030GP SASH RUBBER B 1 LEFT 26 A10263030GP LAMP COVER 1 27 A10283030GP ANTENNA MOTOR COVER 2 27 A10283030GP ANTENNA MOTOR COVER 2 28 A10503030GP SASH RUBBER A 1 RIGHT 29 A10583560GP BACK PANEL COVER A 1 30 A10593560GP BACK PANEL COVER B 1 31 A10943030GP RUBBER FOOT B 2 31 A10943030GP RUBBER FOOT B 2 32 ANE11548U0AP BACK PANEL COVER 1 33 A11743060GP SPACER 1 34 A16163040AP PANEL B U 1 35 A200A3A40AP OVEN 1 36 A200P3030GP ROLLER BRACKET A 1 RIGHT 37 A20003030GP ROLLER BRACKET B 1 LEFT 38 A20103030GP CEILING PLATE B 2 39 A20113030GP CEILING PLATE 1 40 A20193030GP ANTENNA STOPPER 8 40 A20193030GP ANTENNA STOPPER 8 40 A20193030GP ANTENNA STOPPER 8 40 A20193030GP ANTENNA STOPPER 8 40 A20193030GP ANTENNA STOPPER 8 40 A20193030GP ANTENNA STOPPER 8 40 A20193030GP ANTENNA STOPPER 8 40 A20193030GP ANTENNA STOPPER 8 41 A202R3560GP ANTENNA U 4 41 A202R3560GP ANTENNA U 4 42 A22173030GP BARRIER SHEET A 1 43 A22183030GP BARRIER SHEET B 2 NE 3280 43 A22183030GP BARRIER SHEET B 2 NE 3280 44 A22193030GP BARRIER SHEET C 1 NE 2180 C 44 A22193030GP BARRIER SHEET C 2 NE 3280 45 ANE3008POORN HINGE PIN 2 45 ANE3008POORN HINGE PIN 2 46 XWNANE53GV SPACER 1 47 A30203030GP DOOR HOOK A 2 47 A30203030GP DOOR HOOK A 2 48 ANE3033 560 DOOR ROLLER PIN 2 48 ANE3033 560 DOOR ROLLER PIN 2 49 ANE3034 560 DOOR GUIDE ROLLER 2 49 ANE3034 560 DOOR GUIDE ROLLER 2 50 A31123050GP DOOR HOOK B
28. N WvH5VIG DILVW3HOS 13 NE 3280 NE 2180 2180 8 WIRING DIAGRAM NE 2180 USA NOTE When replacing check the lead wire colour as shown RELAYS AND CONNECTOR WIRING ON TOP OF OVEN CN263 CN262 GR CN261 260 RY11 RY12 RY13 RY14 CN259 CN258 CN257 CN256 SWITCH WIRING Safety Switch A Safety Switch A PRIMARY PRIMARY eu j E Short Switch Short Switch MONITOR MONITOR Safety Switch B Safety Switch B SECONDARY SECONDARY DN ik Ele 55 8 RY15 16 DAO elo Bm NE 3280 NE 2180 2180 9 DESCRIPTION OF OPERATING SEQUENCE Variable power cooking control shown in table The coil of power relays are energized intermittently by the NOTE digital programmer circuit when the oven is set at any power ON OFF time of power relays are changed by digital selection except for High power position The digital programmer circuit when remaining cooking time or programmer circuit controls the time of the power selected cooking time are within 8 minutes at MED relays contacts in order to vary the output power of the LOW and Defrost cooking mode microwave oven The relation between indications on the control panel and the output power of the microwave oven is as NE 3280 POWER POWERRELAV ON OFF TIMING OF POWER RELAY POWER RELAY D POWER RELAY C POWER RELAY B POWER RELAY A
29. N4 01 05 5 CN5 AEEMMD07D07W CONNECTOR 7PIN CN6 AEEMMFO0703W CONNECTOR 3PIN CN7 AEEMMFO0703R CONNECTOR 3PIN RED CN8 AEEMBOABPOK CONNECTOR 4PIN CN9 AEEM08FDZOTN CONNECTOR CX1 4194 4 RESONATOR 4 19MHZ D10 D11 D13 AEDNERA1502 DIODE SI 1 0A D12 D18 D22 D23 D2 4 MA700A TA DIODE SI MA700A 0 03A D14 D15 D16 D17 D1 9 D20 D21 D25 MA196 TA5 DIODE SI MA196 0 1A A64563030GP FLUORESCENT TUBE CPR2406C A82843030GP SPACER CUSHION AEIC38121472 Ic M38121 AEIC102977AN Ic SN102977AN AN6752 24 04 24 04 AEICU2004GR IC A2004G 2SD2012 TRANSISTOR SI 2W 3MHZ 2SA720PRTA TRANSISTOR SI 400MW 200MHZ 03 04 05 06 25 1321 TRANSISTOR SI 600MW 200MHz Q7 UNA21F TRANSISTOR SI 300MW 2SD1991A TRANSISTOR SI 400MW 150MHz UN4111 TA TRANSISTOR SI 300MW R10 R11 ERDS2TJ151T CARBON FILM RESISTOR 1500 1 4W 5 R12 17 20 21 22 24 25 26 27 38 39 40 ERDS2TJ103T CARBON FILM RESISTOR 10 1 4 5 ERDS2TJ823T RESISTOR 82 0 1 4 5 ERDS2TJ390T RESISTOR 39Q 1 4W 5 ERDS2TJ152T RESISTOR 1 5KQ 1 4W 5 ERDS2TJ222T RESISTOR 2 2KQ 1 4W 5 ERDS2TJ
30. ORDER NO MOD0108247C1 E10 Service Manual Microwave Oven NE 3280 O NE 2180 NE 2180C Specifications NE 3280 NE 2180 NE 2180C 230 208 V AC Single Phase 60Hz High frequency Output Oscillation Frequency 2450 MHz Timer 15 min HIGH and MED power for single stage 60 min LOW DEFROST and HOLD power for single stage Outside Dimensions 25 9 16 W X 20 3 4 D X 18 9 16 H 650 mm W X 526 mm D X 471 mm H Oven Cavity Dimensions 21 1 16 W X 13 D X 9 7 8 H kc apuray ss 2001 Matsushita Electric Industrial Co Ltd All e rights reserved Unauthorized copying distribution is a violation of law NE 3280 NE 2180 2180 WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death WARNING 1 This product should be serviced only by trained qualified personnel 2 Though this product has been manufactured in compliance with Federal Performance Standard 21 Subchapter J
31. R 8 NE 3280 R253 R25 4 R255 R2 56 R257 R 258 R251 R252 ERDS1TJ104T CARBON FILM RESISTOR 4 NE 2180 C 100KQ 1 2W 55 R257 R25 8 R259 R260 JERF15ZXJ240 RESISTOR 2 240 15 5 261 ERDS2TJ684T CARBON FILM RESISTOR 1 680KQ 1 4W 5 RY1 AEBG5B18P 1 POWER RELAY 1 A G5B 1 ER18 18V RY2 RY3 R AEG5J1EM18B POWER RELAY 7 A NE 2180 C G5J 1 TP M ER18 Y9 RY11 R Y14 RY16 RY2 RY3 R AEG5J1EM18B POWER RELAY 11 A NE 3280 G5J 1 TP M ER18 Y5 RY7 RY 9 RY11 RY 12 RY13 R Y14 RY15 RY16 REF NO 82 P C BOARD H U BZ EFBRL37C20 BUZZER 1 3 7 2 CN551 AEEMMB00703R CONNECTOR 1 3PIN D551 196 5 DIODE SI 1 0551 250639 5 TRANSISTOR SI 1 R551 ERDS2TJ681T CARBON FILM RESISTOR 1 680Q 1 4W 5 CN551 ERDS2TJ184T CARBON FILM RESISTOR 1 180KQ 1 4W 5 CN551 ERDS2TJ103T CARBON FILM RESISTOR 1 10KQ 1 4W 5 REF NO 112 NOISE FILTER U ECQU2A224MNA POLYESTER CAOACITOR 1 NE 2180 C 0 22MF 250V C2 C3 472 CERAMIC CAPACITOR 2 A NE 2180 0 0047MF 250V 02 03 A6169A20GN CAPACITOR 2 NE 3280 0 022MF 250V CN1 CN3 A61663560BP TERMINAL BOARD 2 NE 3280 CN9 AEEMMD00703W CONNECTOR 1 3PIN D1 ERZC10DK621F VARISTOR 1 99 NE 3280 NE 2180 2180 Part No Part Name amp Description Remarks ERZC10DK112R VARISTOR A62316010BP FUSE HOLDER A6116 1740 TERMINAL BOARD NE 3280 A62314000AP FUSE HOLDER NE 3280 NE 2180 A62316010BP FUSE HOLDER A621A3570CP
32. al design PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGV A Do not operate or allow the oven to be operated with the door open B Make the following safetv checks on all ovens to be serviced before activating the magnetron or other microwave source and make repairs as necessarv 1 Interlock operation 2 Proper door closing 3 Seal and sealing surfaces arcing wear and other damage 4 Damage to or loosening of hinges and latches 5 Evidence of dropping or abuse CONTENTS Page 1 CONTROL PANEL 4 2 OPERATION PROCEDURE 5 3 SCHEMATIC DIAGRAM NE 3280 5 9 4 WIRING DIAGRAM NE 3280 USA 10 5 SCHEMATIC DIAGRAM NE 2180C CANADA 11 6 WIRING DIAGRAM NE 2180C CANADA 12 7 SCHEMATIC DIAGRAM NE 2180 USA 13 8 WIRING DIAGRAM 2180 USA 14 9 DESCRIPTION OF OPERATING SEQUENCE 15 10 CAUTIONS BE OBSERVED WHEN TROUBLESHOOTING16 Before turning on microwave power for service test or inspection within the microwave generating compartments check the magnetron waveguide or transmission line and cavity for proper alignment integrity and connections
33. by turning the timer dial Set to 1 minute 4 Tap pad 1st stage p 39 5 When the 151 stage time is up you hear 1 beep sound 2nd stage 6 When the time is up you hear 3 beeps sound 7 Open the door and take out the water load The display goes back to previously setting time HI MED 8 Close the door 1 minute later display will return blank NOTE For a 3rd stage heating cycle select a further power level and time between steps 3 and 4 above NE 3280 NE 2180 2180 3 Memory setting for single stage OPERATION DISPLAY 1 Display must be blank before programming can begin Touch PROG pad 2 Tap 5 pad Set to memory pad 5 NOTE Previously selected power and time will appear 3 Tap pad once Set to High power 4 Set the desired heating time by turning the timer dial Set to 1 minute 5 Touch PROG pad again 6 3 seconds after the display window will go blank TO PROGRAM MEMORY AREA B Follow steps 1 above Touch the Memory Shift pad and small B will appear beneath the flashing PROG Touch the memory pad you wish to program and the previously selected time and power level will appear in the display window NOTE Once the Memory area B has been selected it cannot be changed back to Memory area A If you do not require Memory area B cancel it by touching the cancel pad and begin again 4 Memory setting for 2nd or 3rd stage OPERATION
34. ctions It is faulty if it shows continuitv in one or both directions 12 9 Temp sensor Thermal protector A temp sensor is mounted on exhaust guide Its purpose is to automatically shut off the oven in case the cavitv overheats for any reason The thermal protector will operate at 257 125 C The device is connected to the DPC on touch control models When thermal protector exceeds its temperature it will turn off the power to oven cavity and display will go to reset mode The cooking program can be reset after cool down THERMISTOR RESISTANCE VALUE 30K 120K at 10 C 30 50 F 86 F NOTE OHMMETER SHOULD HAVE A MINIMUM 6 VOLT BATTERY FORWARD REVERSE SEVERAL FORWARD REVERSE con NE 3280 NE 2180 2180 13 MEASUREMENTS AND ADJUSTMENTS 13 1 Adjustment of the secondary interlock switch SAFETY UTE 4 SECONDARY SWITCH B Right and Left INTERLOCK SWITCH side SAFETY SWITCH B 1 Switch operation When door is slightly opened the secondary interlock switch opens the main circuit The movement of the door from the closed position to the operation position shown as liter of the switch when it opens the main circuit must maintain within following tolerances SECONDARY INTERLOCK SEITCH liter 3 mm 5 mm When secondary interlock switch opens the main circuit NOTE Make sure that primary interlock switch turns of
35. e ANTENNA FLAT BLADE SCREWDRIVER OR STAINLESS STEEL RULER PART NO A13005 150 CEILING g e1 PLATE 0 0 0 0 1 0 0 0 C3 C3 C3 C3 G 11 5 Upper antenna Right and Left Upper antenna Right and Left 1 Remove 8 plastic clips holding ceiling plate and exhaust guides by using flat screwdriver or the like 19 NE 3280 NE 2180 2180 Upper PART Antenna ANE61446030AP Motor RATED 120V Lower PART NO Antenna A6144 3280 Motor RATED 120V 11 9 Program Beep and Program Lock switches board P C Board F assy 1 Remove air filters 2 Place the unit on its left side carefully 3 Peel off panel B 4 Remove 1 screw holding cover Figure 5 Remove 2 screws holding switch assv 6 Remove connector and remove 2 screws holding switch board 11 10 Voltage selection 208 gt 230 1 Remove 1 screw holding voltage selection connector cover FLOOR SHELF 2 Plug the connector out from white 208V socket and plug the connector into the black 230V socket SCREW DRIVER TEMP SENSOR 02 048M 11 7 Replacement of temperature sensor Thermal protector 1 Cut 2 lead wires at the top of sensor terminals EXHAUST GUIDE 2 Remove 2 screws holding temp sensor and replace with new one 08 040M 3 Solder
36. ead wire may be open or the connector cannot be removed 5 Be sure to ground any static electric charge built up in your body before handling the D P C 6 A 208 230V AC is present at the shaded area of the power supply circuit board Terminals of power relays and primary circuit of low voltage transformer When troubleshooting be cautious of possible electrical shock hazard First of all operate the microwave oven following the correct operating procedures described on pages 4 of this service manual in order to find the exact cause of any trouble NOTE If the unit shows faulty symptom as shown below check the parts listed in possible cause column depending on failure indication e g F81 F82 in the display ITROUBLEJ Oven does not operate at all or oven does not start cooking NE 3280 DISPLAY CONDITIONS POSSIBLE CAUSE TIMING OF FAILURE INDICATION Open temperature 1 Temperature sensor failure It is appeared when failure occured sensor exhaust 2 Digital programmer circuit failure 3 Loose connector CN5 F34 Short temperature 1 Temperature sensor failure It is appeared when failure occured sensor exhaust 2 Digital programmer circuit failure F44 1 Shorted membrane switch It is appeared 2 minutes after failure occured F01 Exhaust temperature 1 Burning food in the oven due to over cook is appeared when exhaust temperature With continuous exceeds 120 C exceeds above 120 C beep sounds F03 Input voltage exceed 1
37. f prior to the secondary interlock switch when the door is gradually opened 2 How to adjust secondary interlock switch Loosen 2 screws which secure the secondary interlock switch bracket to the bracket of the oven assembly and then adjust the secondary interlock switch bracket by moving it to either direction as shown in figure 13 2 Adjustment of the Short Switch MONITOR SWITCH Right and Left side 1 When the door is slightly opened the Short Switch opens the main circuit and closes the contacts for short circuit The movement of door from its closed position to open position at which the Short Switch contacts open the main circuit shown as liter must maintain within 8 mm 11 mm and at which the switch contacts close the short circuit should 08 068M be 20mm 35 mm 2 How to adjust To measure use stainless steel ruler is convenient which Loosen the 2 screws holding the short switch to the short available from spare part route Part No A13005 150 switch bracket and then adjust the safety switch A by moving it to either direction as shown in figure For USA models only WARNING FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION EMISSION REPLACE ONLY WITH THE SAME TYPE COMPONENT MARKED BY A WHEN REPLACING FUSE CHECK OPERATION OF DOOR INTERLOCK AND INTERLOCK MONITOR CIRCUIT AS MARKED BY N AND REPLACE ANY FAULTY COMPONENTS LOCATION OF D SECONDARY FUSE a si sss mm 9 CHECK WHICH FUSE IS
38. itch when the door is gradually opened How to adjust primary interlock switch Loosen 2 screws which secure the primary interlock switch bracket to the bracket of the oven assembly and then adjust the primary interlock switch bracket by moving it to either direction as shown in figure 13 4 Measurement of microwave output The output power of the magnetron can be determined by performing IEC standard test procedures However it is possible to test the magnetron by following procedure outlined below Necessary equipement 1 litre beaker Glass thermometer Wrist watch or stopwatch NOTE Check the line voltage under load to ensure it meets specifications Low voltage condition will cause a reduction in magnetron output Temperature readings and heating time should be as accurate as possible Output power performance test procedure 1 Fill the beaker with exactly one litre of tap water Stir the water using the thermometer and note the temperature Record as T1 2 Place the beaker in the center of cook plate Set the oven for High power and heat for exactly one minute 3 After completion of the heating cycle stir the water again with the thermometer and note the temperature Record as T2 The normal temperature rise T2 T1 at High power position for each models is as shown in following table Model Temperature Rise 1 liter 1 Min NE 3280 Min 27 4 C NE 2180 Min 18 C NE 2180C PRIMARY
39. ith all the terminal pins cleaned and separated from DPC contacts remove the defective transformer power relays and install new transformer power relays making sure all terminal pins are inserted completely Resolder all terminal contacts carefully 11 4 Disassembly of door assembly 1 Detach the door spring ends from right and left door arms 2 Remove the arm lever right and left by removing 2 screws each on both sides 3 Remove the sashes right and left by removing 1 screw each on both sides 4 By holding the door assembly remove the right and left sides door hinge pins The door assembly is now free from the oven 5 Remove 3 screws holding the door A 6 Remove the door C by using a flat screwdriver as figure 7 Remove 4 screws holding door handle 8 Separate door A and door E 9 Remove the door arms by removing 1 pin each on both sides RIGHT AND LEFT BOTH SIDE NE 3280 NE 2180 2180 2 Remove 2 screws holding upper antenna assy by inserting screwdriver through the opening on the antenna as shown in figure 11 6 Lower antenna Right and Left Lower antenna Right and Left 1 To remove the floor shelf insert a screwdriver through the openings on the right and left sides of the oven cavity and carefully lift the floor shelf as shown in figure 2 Remove 2 screws holding lower antenna assy by inserting screwdriver through the opening on the antenna as shown in figur
40. move 2 screws holding thermal cutout 6 Remove the air guide from magnetron and install it on the new magnetron NOTE To prevent microwave leakage tighten mounting screws properly making sure there is no gap between the waveguide and the magnetron CAUTION When connecting 2 filament lead wires to the magnetron terminals be sure to connect the lead wires in the correct position The lead wire with blue connector should be connected to FA terminal and white one should be connected to F terminal See Figure 17 NE 3280 NE 2180 2180 MAGNETRONS MOUNTING BRACKET SLIDE IN OUT 11 2 Digital programmer circuit board 1 Remove grounding screw for membrane switch and D P C ground 2 Remove 2 screws holding control panel assembly to detach it from main unit then remove connectors 3 Remove 2 screws holding the D P C board and remove the board by freeing catch hooks NOTE Please use care in handling the power supply P C B and D P C board to avoid damage 11 3 Low voltage transformer and or power relays NOTE Be sure to ground any static electric charge built up on your body before handling the DPC 1 Using solder wick or a desoldering tool and 30W soldering iron carefully remove all solder from the terminal pins of the low voltage transformer and or power relays 18 NOTE Do not use a soldering iron or desoldering tool of more than 30 watts on DPC contacts 2 W
41. n 12 5 Note that it returns normal operation mode by tapping the STOP pad No display 1 25A fuse blown 1 Low Voltage transformer failure No display 1 25A fuse is OK 1 Thermal cutout failure 2 Low voltage transformer failure 3 Digital programmer circuit failure F No voltage supply to 1 Relay failure RY 3 A It is appeared when failure occured high voltage transformer left 2 Loose connector CN256 CN257 3 Digital programmer circuit failure No voltage supply to 1 Relay failure RY 9 C It is appeared when failure occured high voltage transformer right 2 Loose connector CN262 CN257 3 Digital programmer circuit failure Memory failure 1 Digital programmer circuit failure 81 F84 F86 Shorted contacts of RY 1 Relay failure RY 3 It is appeared when failure occured 2 Digital programmer circuit failure F89 Shorted contacts of RY 1 Relay failure RY 9 D It is appeared when failure occured 9 2 Digital programmer circuit failure 27 NE 3280 NE 2180 2180 16 EXPODED VIEW AND PARTS LIST S 3A4 APR 28 lt NE 3280 NE 2180 2180 17 PARTS LIST NOTE When ordering replacement part s please use part number s shown in this parts list Do not use description of the part Importan safety notice Components identified by mark have special characteristics important for safety When replacing any of these components use only manufact
42. ng the outer panel are fully assembled measure for radiation leakage around the door periphery the door viewing window the exhaust opening and air inlet openings 14 3 Record keeping and notification after measurement 1 After any adjustment or repair to a microwave oven leakage reading must be taken Record this leakage reading on the repair ticket even if it is zero A copy of this repair ticket and the microwave leakage reading should be kept by repair facility 2 Should the radiation leakage be more than 2mw square centimeter after determining that all parts are in good MOVE PROBE ALONG SHADED AREA AROUND EXHAUST condition functioning properly and genuine replacement OPENINGS as shown AND AROUND parts as listed in this manual have been used immediately AIR INLET OPENING notify PASC or PSC 25 NE 3280 NE 2180 2180 15 TROUBLESHOOTING GUIDE CAUTION Check grounding before checking for trouble Be careful of the high voltage circuit Discharge high voltage capacitor When checking the continuity of the switches or the high voltage transformer disconnect one lead wire from these parts and then check continuity with the AC plug removed To do otherwise may result in a false reading or damage to your meter When disconnecting a plastic connector from a terminal you must hold the plastic connector instead of the lead wire and then disconnect it otherwise l
43. p Description Pcs Set Remarks XWG5BV WASHER FOR SHELF SUPPRT XWG5BV WASHER FOR SHELF SUPPRT A90273A40AP CORD BUSHING NE 3280 A90273040AP CORD BUSHING NE 2180 C A90353A40AP CORD BRACKET NE 3280 A90353570CP CORD BRACKET NE 2180 C XTT4 8E SCREW 4X8 FOR BACK PANEL COVER XYEANE5 C16T SCREW 5X16 FOR UPPER MAGNETRON XYEANE5 C16T SCREW 5X16 FOR UPPER MAGNETRON XYEANE5 C16T SCREW 5X16 FOR UPPER MAGNETRON XYEANE5 C16T SCREW 5X16 FOR UPPER MAGNETRON A30183030GP DOOR KEY A A30183030GP DOOR KEY A 04115020 0 5 LABEL NOTE Please order name label together 18 DOOR ASSEMBLE D10 D8 FR N NN o o P N N NE 2180C S 3A4 APR Ref No Part No Part Name amp Description Pcs Set Remarks D1 A30033030GP DOOR FRAME 1 D2 A30043030GP DOOR ARM 2 2 A30043030GP DOOR ARM 2 D3 A301A3030GP DOOR A 1 NOTE D4 A302K3030GP DOOR E U 1 D5 ANE3009POORN DOOR SPRING 2 D5 ANE3009POORN DOOR SPRING 2 D6 ANE3036POORN DOOR ARM PIN 2 D6 ANE3036POORN DOOR ARM PIN 2 D7 A30703030GP HANDLE PIECE A T D8 A31343030GP HANDLE PIECE B 1 D9 A31463030GP DOOR SCREEN B 1 D10 A31473030GP HANDLE SHEET C 1 D11 XTC4 10BC SCREW 3 4X10 D11 XTC4 10BC SCREW 3 4X10 D11 XTC4 10BC SCREW 3 4X10 34
44. the door Display will return blank after 1 minute 8 To Release Program Lock NOTE When program is locked heating can be started OPERATION automatically by tapping memory pad 1 Plug the power supply cord into wall receptacle 2 Press and hold switch until the display will show PROG and for than 5 seconds 3 Program lock feature is now deactivated NE 3280 NE 2180 2180 9 To Select Beep Tone Options 4 Select the desired sound loudness level by pressing BEEP switch Repeated pressing of BEEF switch will lower the loudness and all the way to silent 5 Press PROG switch again 6 3 seconds later display window will go blank To select length of tone at end of heating cycle there are 2 options A 3 beeps factory setting B 60 seconds of short beeps To set for 60 seconds of short beeps OPERATION DISPLAY 1 Complete steps 1 4 above 1 2 Press PROG switch and quickly select the desired tone length by pressing Switch 1 illuminated 3 beeps 2 illuminated 60 seconds of beeps 3 Press Switch again 4 3 seconds later the display will go blank NE 3280 NE 2180 2180 3 SCHEMATIC DIAGRAM NE 3280 USA ji lt a 9 0 L s LINDEN H31 13 3SION W3HW 3DVLIOA HDIH NOLL YSN 086 3 WVHDVIQ SILVWSHOS NE
45. the lead wires securelv to the sensor terminals 11 8 Replacement of antenna motors upper and lower 1 The upper antenna motor mav be removed bv disconnecting the lead wire connectors and removing its 2 mounting screws 2 To remove the lower antenna motor carefully place the unit on its left side 3 Remove the motor cover by removing 2 screws and follow same procedure as for upper antenna CAUTION There are two types of antenna motors Therefore please replace with correct one as showing below 20 NE 3280 NE 2180 2180 CONNECTOR FOR 208V WHITE N CONNECTOR FOR 230V ANTENNA MOTOR COVER 03 051M 12 COMPONENT TEST PROCEDURE CAUTION check continuity 1 High voltage is present at the high voltage terminal of the high 2 Normal cold resistance readings should be as follows voltage transformer during any cook cycle ndary winding Approx 40 1000 2 lt is neither necessary nor advisable to attempt measurement of secondary ding Appro p 9 the high voltage Filament winding Approx 00 3 Before touching anv oven components or wiring alwavs unplug Primary winding Approx 30 the oven from its power source and discharge the high voltage pc 5 gt 5 gt 124 High voltage capacitor 12 1 Primarv Interlock Switch 1 Check continuity of capacitor with meter on highest OHM scale SAFETY SWITCH 2 A
46. uld be held by the grip portion of the handle only and moved along the shaded area shown in Figure right no faster than 1 inch sec 2 5cm sec MAGNETRON 3 Leakage with the outer panel removed less than WAVE GUIDE 5mw square centimeter 4 Leakage for a fully assembled oven with door normally closed less than 2mw square centimeter 5 Leakage for a fully assembled oven Before the interlock switch primary is interrupted while pulling the door less than 2mw square centimeter 1 Pour 275 15cc 9ozs 1 20z of 20 5 C 68 9 F water in a beaker which is graduated to 600cc and place the beaker in the center of the oven 2 Set the radiation monitor to 2450MHz and use it following the manufactuer s recommended test procedure to assure correct results 3 When measuring the leakage always use the 2 inch bcm spacer supplied with the probe WAVE GUIDE 03 053M 4 Press the start button and with the magnetron oscillating measure the leakage by holding the probe perpendicular to the surface being measured 1 Measurement with the outer panel removed Whenever you replace the magnetron measure for radiation leakage before the outer panel is installed and after all necessary components are replaced or adjusted Special care should be taken in measuring around the magnetron WARNING Avoid contacting any high voltage parts 2 Measurements with a fully assembled oven After all components includi
47. urere s specified parts Part No Part Name amp Description Pcs Set Remarks ANE00068U0CP CAUTION LABEL NE 2180C A00063040AP CAUTION LABEL 3280 2180 A00333A40AP FUSE LABEL 3280 2180 A00333570CP FUSE LABEL NE 2180C A010T3030GP SHELF A02393A80BP CORD LABEL NE 3280 NE 2180 A05243A40AP NAME LABEL NE 3280 A05243A60AP NAME LABEL NE 2180 A05243A60CP NAME LABEL NE 2180C ANE6595P40AP FUSE A NE 2180 15A ANE6230P30AP FUSE NE 3280 20A ANE0911000DC CUSHION RUBBER B NE 3280 ANE0911000DC CUSHION RUBBER B NE 3280 ANE0911000DF CUSHION RUBBER B p XYD4 EE12F SCREW 2180 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F NE 3280 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F NE 2180 C 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F NE 2180 C 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH XYD4 EE12F NE
48. vel Selector Pad 11 Program Entrv Button Memorv Shift Pad behind Air Filters Memorv Pad 12 Beep Control Button behind Air Filters Stop Clear Time Pad 13 Program Lock Button behind Air Filters Start Pad 14 Control Panel Timer Dial 15 Middle Shelf Door Handle 16 Voltage Adjustment Cover Oven Lamp Cover rear side of the oven 17 Rating Plate Location Digital Displav Window Indicator Locations 123 Hill Hill 1111 M STAGE MED LOW DEF HOLD A Program Display B Memory Code Display C Memory Pad Number Display D Stage Heating Indicator E Heating Time Display min sec F Power Level Indicator HI HIGH MED MEDIUM LOW DEF DEFROST HOLD 2 OPERATION PROCEDURE 1 Manual heating for single stage 1 Plug the power supply cord into wall receptacle 2 Open the door Place a water load in the oven and close the door 3 Tap pad once Set to High power 4 Set the desired heating time by turning the timer dial Set to 2 minutes 5 Tap START pad 6 When the time is up you hear 3 beeps sound 7 Open the door and take out the water load The display goes back to previously setting time 8 Close the door 1 minute later display will return blank NE 3280 NE 2180 NE 2180C 2 Manual heating for 2nd or 3rd stage OPERATION DISPLAY 1 Follow step 1 to 4 for single stage 2 Tap POWER pad twice Set to MED power 3 Set the desired heating time
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