Panasonic NE-2140 Service Manual Download Page 22 | Manualshive

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14.2. 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.

14.3. 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,

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Summary of Contents for NE-2140

Page 1: ...Mod NE3240 Production code NE3240 09 2012 ...

Page 2: ...NE 3240 NE 2180 NE 2140 SPECIFICATIONS 2001 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law 1 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 3: ...1 OUTLINE DIAGRAM 2 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 4: ...2 OPERATION PROCEDURE NE 3280 2180 3 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

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Page 7: ...3 OPERATION PROCEDURE NE 3240 2140 6 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 8: ...4 SCHEMATIC DIAGRAM NE 3280 7 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 9: ...5 SCHEMATIC DIAGRAM NE 3240 8 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 10: ...6 SCHEMATIC DIAGRAM NE 2180 9 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 11: ...7 SCHEMATIC DIAGRAM NE 2140 10 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 12: ...8 WIRING DIAGRAM NE 3280 11 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 13: ...9 WIRING DIAGRAM NE 3240 12 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 14: ...10 WIRING DIAGRAM NE 2180 13 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 15: ...11 WIRING DIAGRAM NE 2140 14 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 16: ...F time of the power relays contacts in order to vary the output power of the microwave oven The relation between indications on the control panel and the output power of the microwave oven is as shown in table NOTE ON OFF time of power relays are changed by digital programmer circuit when remaining cooking time or selected cooking time are within 8 minutes at MED LOW and Defrost cooking mode 15 Cr...

Page 17: ...elay ON OFF time is controlled at Low power mode by DPC 3 During Standing periods power relay is always open 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 seconds as programmed The total number of seconds is divided into 8 time periods The remainder seconds not equally divisible by 8 are added to t...

Page 18: ...epairs are made If the oven is operated with any of these parts in imperfect condition hazardous microwave leakage might occur WARNING Never operate the oven until the following are confirmed 1 The door is tightly closed 2 There is no broken hinge or door arm 3 The door seal is not damaged 4 The door is not bent or warped 5 There is no other visible damage 13 3 Warning about the electric charge in...

Page 19: ...after repairs or replacement WARNING Never touch any circuit wiring with your hand nor with an insulated tool during operation 13 4 When parts must be replaced always remove the power plug from the outlet and discharge the high voltage capacitor 13 5 Confirm after repair 1 After repair or replacement of parts make sure that the screws of the oven etc are neither loose nor missing Microwave might l...

Page 20: ...s removed 14 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE CAUTION Serviceman should remove their watches whenever working close to or replacing the magnetron 14 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 magnetro...

Page 21: ...erly 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 20 Created with novaPDF Printer www novaPDF com Please register to r...

Page 22: ...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 14 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 21 Created with novaPDF Printer www novaPDF com Pl...

Page 23: ... 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 t...

Page 24: ...enna as shown in figure 14 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 figure 23 Created with no...

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Page 26: ...cting 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 Upper Antenna Motor PART NO ANE61446030AP RATED 120V Lower...

Page 27: ...should be as follows Secondary winding Approx 40 100 Filament winding Approx 0 Primary winding Approx 0 3 15 2 High voltage capacitor 1 Check continuity of capacitor with meter on highest OHM scale 2 A normal capacitor will show continuity for a short time and then indicate 9M once the capacitor is charged 3 A shorted capacitor will show continuous continuity 4 An open capacitor will show constant...

Page 28: ... open 15 4 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 27 Created with novaPDF Printer www novaPDF com Pl...

Page 29: ...otector diode terminals Reverse the meter leads and again observe the resistance reading A normal protector diode s resistance will be infinite in both directions It is faulty if it shows continuity in one or both directions 15 7 Temp sensor Thermal protector A temp sensor is mounted on exhaust guide Its purpose is to automatically shut off the oven in case the cavity overheats for any reason The ...

Page 30: ...tch B bracket to the bracket of the oven assembly and then adjust the safety switch B bracket by moving it to either direction as shown in figure 16 2 Adjustment of the Short 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...

Page 31: ...g position shown as liter of the switch when it opens the circuit is specified as follows SAFETY SWITCH A liter 1mm 3mm When safety switch A opens the circuit NOTE Make sure that safety switch A turn off prior to the safety switch B when the door is gradually opened 2 How to adjust safety switch A Loosen 2 screws which secure the safety switch A bracket to the bracket of the oven assembly and then...

Page 32: ...ating 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 thermomet...

Page 33: ...ground any static electric charge built up in your body before handling the D P C 6 A 230 240V 400V 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 describe...

Page 34: ...3 Digital programmer circuit failure F81 No voltage supply to high voltage trans lower left 1 Relay failure RY 3 A 2 Loose connector CN256 CN257 3 Digital programmer circuit failure It is appeared when failure occurred F82 No voltage supply to high voltage trans lower right 1 Relay failure RY 5 B 2 Loose connector CN258 CN259 3 Digital programmer circuit failure It is appeared when failure occurre...

Page 35: ...hen the unit is plugged in Note that it returns normal operation mode by tapping the RESET pad F05 Memory failure 1 Digital programmer circuit failure No display 1 25 3A fuse blown 1 Switch failure short switch 2 Low Voltage transformer failure No display 1 25 3A fuse is OK 1 Thermal cutout failure 2 Low voltage transformer failure 3 Digital programmer circuit failure F81 No voltage supply to high...

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Page 37: ...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 manufacturere s specified parts 36 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 38: ... PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH 9 XYD4 EE12F SCREW 19 NE 3240 NE 2140 2180 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH 9 XYD4 EE12F SCREW 19 NE 3240 NE 2140 2180 4X12 FOR TERMINAL PLATE ANTENNA MOTOR COVER SWITCH HOLDER DIODE CAPACITOR BRACKET ESCUTCHEON BASE DPC EARTH 9 XYD4 ...

Page 39: ...AV CUSHION RUBBER C 2 17 ANE0923000AV CUSHION RUBBER C 2 17 ANE0923000AV CUSHION RUBBER C 2 18 ANE0924000AB CUSHION RUBBER C 2 18 ANE0924000AB CUSHION RUBBER C 2 18 ANE0924000AB CUSHION RUBBER C 2 19 A100A3560BP BASE 1 NOTE 20 A100Q3560GP BACK PANEL 1 21 A1008 3280 RUBBER FOOT 4 21 A1008 3280 RUBBER FOOT 4 21 A1008 3280 RUBBER FOOT 4 21 A1008 3280 RUBBER FOOT 4 22 A10093030GP CABINET BODY U 1 23 A...

Page 40: ...34 A16163060GP PANEL B U 1 NE 2180 39 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 41: ...30203030GP 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 2 NE 3280 NE 2180 50 A31123030GP DOOR HOOK B 2 NE 3240 NE 2140 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 ANE3...

Page 42: ...2180 76 A603M3A70EU P C BOARD B U 1 NE 2140 77 A603Y3560GP L V TRANSFORMER U 1 78 ANE6030Q50GN INCANDESCENT LAMP 1 240V 25W 79 A60403030GP OVEN LAMP SHEET 1 80 A60403040AP OVEN LAMP SHEET 1 81 A605Q3030GP PUSH SWITCH 1 82 A605S3030GP PC BOARD H U 1 83 2M210 M1GL MAGNETRON 4 NE 2180 NE 2140 83 2M244 M1GL MAGNETRON 4 NE 3280 NE 3240 83 2M244 M1GL MAGNETRON 4 NE 3280 NE 3240 83 2M244 M1GL MAGNETRON 4...

Page 43: ... V T MOUNTING 2 106 A65513030GP H V T MOUNTING 2 107 A65613030GP BUZZER CASE 1 108 A66623170GP EARTH SPACER 1 109 A65953170GP FUSE B 1 NE 3280 NE 2180 1 25A 109 A65963030GP FUSE B 1 NE 3240 NE 2140 3A 110 A66033030GP OVEN LAMP BRACKET 1 111 A66263040AP THERMAL CUTOUT MOUNT 2 112 A692Y3560GP NOISE FILTER U 1 NE 2140 112 A692Y3A40BP NOISE FILTER U 1 NE 3280 112 A692Y3A60BP NOISE FILTER U 1 NE 2180 1...

Page 44: ...RACKET 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 XTWA4 12CFN SCREW 1 NE 3280 FOR CORD EARTH 130 XWA4BV WASHER 1 NE 3280 FOR CORD EARTH 131 XWA5BV WASHER 1 NE 3280 FOR CORD EARTH 132 ANE09610...

Page 45: ...X8 FOR FOOT 148 XTWANE3 8EX SCREW 4 3X8 FOR FOOT 148 XTWANE3 8EX SCREW 4 3X8 FOR FOOT 148 XTWANE3 8EX SCREW 4 3X8 FOR FOOT 148 XTWANE3 8EX SCREW 4 3X8 FOR FOOT 148 XTWANE3 8EX SCREW 4 3X8 FOR FOOT 149 ANE6004P60GN POWER RELAY 1 NE 3240 NE 2140 150 A60823030GP POWER RELAY BRACKET 1 NE 3240 NE 2140 151 ANE6082P10GN POWER RELAY BRACKET 1 NE 3240 NE 2140 NOTE Please order name label together 20 DOOR A...

Page 46: ...RN DOOR ARM PIN 2 D6 ANE3036P00RN DOOR ARM PIN 2 D7 A30703030GP HANDLE PIECE A 1 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 D12 XYEANE4 C16T SCREW 4 4X16 D12 XYEANE4 C16T SCREW 4 4X16 D13 A30853030GP DOOR C 1 21 ESCUTCHEON BASE ASSEMBLE 45 Created with novaPDF Print...

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Page 48: ...1 A80023030GP ESCUTCHEON B 1 E11 A80023030GP ESCUTCHEON B 1 E12 A80063030GP ESCUTCHEON D 1 E12 A80063030GP ESCUTCHEON D 1 E13 A80163030GP ESCUTCHEON SPACER 1 E13 A80163030GP ESCUTCHEON SPACER 1 E14 ANE8024P00RN COOK BUTTON 1 NE 3240 NE 2140 E15 A80343030GP ESCUTCHEON BASE 1 NE 3240 NE 2140 E15 A80343060GP ESCUTCHEON BASE 1 NE 3280 NE 2180 E16 ANE8037P00RN COOK BUTTON SPRING 2 NE 3240 NE 2140 E17 A...

Page 49: ... PACKING CASE PAPER 1 NE 3280 P3 A01023A50EU PACKING CASE PAPER 1 NE 3240 P4 A01033030GP BOTTOM CASE 1 P5 A01043030GP UPPER FILLER 1 P6 A01053030GP LOWER FILLER 1 P7 A01063040AP VINYL COVER 1 P8 A01073030GP DOOR SHEET 1 P9 A01083030GP TRAY PACKING 1 P10 A01173030GP TRAY PACKING B 1 P11 A012D3050GP SHELF B 1 P12 A04203590BP OPERATING GUIDE 1 NE 3280 NE 2180 P13 HP 601W FASTENER 4 23 WIRING MATERIAL...

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Page 52: ...NE 2140 W16 A03753030GP NOISE KILLER 1 NE 3240 Ref No Part No Part Name Description Pcs Ser REF NO 76 P C BOARD B U AEGHPUG3640 1 XYN3 F8S6 1 3X8 2SD2012 1 ERDS2TJ163T 1 NE 2180 NE C250 ECA1HHG222E 1 2200MF 50V CN250 AEEMMD1FF09W 1 9PIN CN251 AEEMMD7FF11N 1 11PIN CN252 AEEMMD04907W 1 7PIN CN254 AEEMMD01F05W 1 5PIN D250 D251 D252 D253 D254 D255 D256 D257 D258 D259 D260 D261 D262 D263 D264 D265 D267...

Page 53: ...ARBON FILM RESISTOR 1 180K 1 CN551 ERDS2TJ103T CARBON FILM RESISTOR 1 10K 1 4W 5 REF NO 112 NOISE FILTER U C1 ECQU2A224MNA POLYESTER CAOACITOR 1 NE 3280 0 22MF C1 C6 ECQU2A224MNA POLYESTER CAOACITOR 2 NE 3240 NE C2 C3 ECKMNA472ME CERAMIC CAPACITOR 2 NE 2180 C2 C3 A6169A20GN CAPACITOR 2 NE 3280 0 022MF CN1 CN3 A61663560BP TERMINAL BOARD 2 NE 3280 CN9 AEEMMD00703W CONNECTOR 1 3PIN D1 ERZC10DK621F VA...

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Page 55: ...25 DIGITAL PROGRAMMER CIRCUIT PARTS LIST 54 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

Page 56: ...5 D16 D17 D19 D20 D21 D25 MA196 TA5 DIODE SI 8 MA196 0 1A DISP A64563030GP FLUORESCENT TUBE 1 CPR2406C SPACER A82843030GP SPACER CUSHION 2 IC1 AEIC38121472 IC 1 M38121 IC2 AEIC102977AN IC 1 SN102977AN AN6752 IC3 AEICAT24C04N IC 1 AT24C04N C4 C5 AEICU2004GR IC 2 A2004G Q1 2SD2012 TRANSISTOR SI 2W 1 3MHZ Q2 2SA720PRTA TRANSISTOR SI 400MW 1 200MHZ Q3 Q4 Q5 Q6 2SB1321A TRANSISTOR SI 600MW 4 200MHz Q7 ...

Page 57: ...1 4W 5 R37 R42 ERDS2TJ332T CARBON FILM RESISTOR 2 3 3K 1 4W 5 R41 ERDS2TJ472T CARBON FILM RESISTOR 1 4 7K 1 4W 5 ZD1 AEDZ4R7ES3T1 ZENER DIODE SI 1 RD4 7ES3 ZD2 AEDZ5R6ES2T1 ZENER DIODE SI 1 RD5 6ES2 ZD3 AEDZ24ES3T1 ZENER DIODE SI 1 RD24ES3 WP 592 F S 3A4 BPQ Printed in Japan 56 Created with novaPDF Printer www novaPDF com Please register to remove this message ...

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