Panasonic NN-GD371M Service Manual Download Page 31 | Manualshive

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10.4. DOOR ASSEMBLY

Ref. No.

Part No.

Part Name & Description

Pcs/Set

Remarks

D1

F30189V00XP

DOOR KEY A

1

D3

F302KBA00EP

DOOR E (U)

1

D4

F30215G10XN

DOOR KEY SPRING

1

D5

F30859V00XP

DOOR C

1

D6

F3145BB10EP

DOOR SCREEN A

1

D8

F302ABB10SEP

DOOR A (U)

1

GD391S

D8

F302ABB20SZP

DOOR A (U)

1

GD371M

31

NN-GD391S / NN-GD371M

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Summary of Contents for NN-GD371M

Page 1: ... Panasonic Home Appliances Microwave Oven Shanghai Co Ltd 2011 NN GD391S NN GD371M KTE UAE PTE Iran ZPE CIS Countries Microwave Oven ORDER NO PHAMOS1107076CE ...

Page 2: ...2 NN GD391S NN GD371M ...

Page 3: ...3 NN GD391S NN GD371M ...

Page 4: ...ter 15 6 8 H V Inverter Power Supply 15 7 COMPONENT TEST PROCEDURE 17 7 1 Primary Secondary Latch Switch interlocks Power Relay RY1 17 7 2 Short switch monitor 17 7 3 Magnetron 17 7 4 DC fan motor 17 7 5 Inverter power supply U 18 7 6 Temperature thermistor 18 8 MEASUREMENTS AND ADJUSTMENTS 19 8 1 Adjustment of Primary latch switch Secondary latch switch and Short switch 19 8 2 Measurement of micr...

Page 5: ...1 FEATURE CHART 2 CONTROL PANEL 5 NN GD391S NN GD371M ...

Page 6: ...3 SCHEMATIC DIAGRAM 3 1 NN GD371M KTE PTE 6 NN GD391S NN GD371M ...

Page 7: ...3 2 NN GD391S ZPE GD371M ZPE 7 NN GD391S NN GD371M ...

Page 8: ...k to the microcomputer in the DPC to determine operating conditions and output necessary to control PWM signal to the Inverter Power Supply for control of the output power 4 3 Turbo defrost Auto cook When the Auto Control feature is selected and the Start pad is tapped 1 The digital programer circuit determines the power level and cooking time to complete cooking and indicates the operating state ...

Page 9: ...pply circuit grounding The high voltage inverter power supply circuit board must have a proper chassis ground The inverter grounding bracket must be connected to the chassis If the inverter board is not grounded it will expose the user to very high voltages and cause extreme DANGER Be sure that the inverter circuit is properly grounded via the inverter earth bracket WARNING DISCHARGE THE HIGH VOLA...

Page 10: ...repair 1 After repair or replacement of parts make sure that the screws of the oven etc are neither loose nor missing Microwave energy 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 3 Check for microwave energy leakage CAUTION OF MICROWAVE RADIATION LEAKAGE USE CAUTION NOT TO BECOME EXPOSED TO RAD...

Page 11: ...emove 2 screws holding the magnetron NOTE After replacement of the magnetron tighten mounting screws properly making sure there is no gap between the waveguide and the magnetron to prevent microwave leakage CAUTION When replacing the magnetron be sure the antenna gasket is in place 6 2 Digital programmer circuit D P C CAUTION Be sure to ground any static electric charge built up in your body befor...

Page 12: ...ower relays NOTE Do not use a soldering iron or desoldering tool of more than 30 watts on D P C contacts 2 With all the terminal pins cleaned and separated from D P C contacts remove the defective transformer power relays Replace components making sure all terminal pins are inserted completely resolder all terminal contacts carefully 6 4 DC fan motor 1 Disconnect DC fan motor connect CN15 from DPC...

Page 13: ... reassemble it properly and adjustment so as to prevent an excessive microwave leakage Adjustment of the door assembly Refer page 18 7 Place the hole of hinge A into the door s upper hinge pin 8 Use your left index finger to support the door s lower hinge pin while guiding the door s hinge A into the cavity slot Then lower your finger to seat the door onto the hinge NOTE Door alignment is crucial ...

Page 14: ...fter removing the motor cover be sure that cut portions are properly trimmed off or bent to the inside so that no sharp edges will be exposed to outside 2 Disconnect 2 lead wires connected to the turntable motor 3 Remove the turntable motor by removing 1 screw NOTE After reinstalling the new turntable motor and reconnecting the 2 lead wires reinstall the motor cover by rotating it around 180 tucki...

Page 15: ...eater by pulling it out from the cavity left side 6 8 H V Inverter Power Supply 1 Disconnect 2 high voltage lead wires from magnetron filament terminals 2 Unplug connector CN701 CN702 from H V Inverter board 3 Remove 1 screw holding grounding plate on the base 4 Remove 1 screw holding inverter bracket on the base 5 Slide 2 locking tabs of inverter bracket at the bottom of the base in direction of ...

Page 16: ...6 Remove 2 screws holding H V inverter on the inverter bracket 16 NN GD391S NN GD371M ...

Page 17: ...switch monitor 1 Unplug lead wires from Inverter Power Supply U primary terminals 2 Connect test probes of ohm meter to the disconnected leads which were connected to Inverter Power Supply U 3 Test the continuity of short switch with door opened and closed positions using lowest scale of the ohm meter Normal continuity readings should be as follows Door Opened Door Closed 0Ω Close Ω Open 7 3 Magne...

Page 18: ...AC power supply cord into outlet 4 Program DPC a Press Clock button once b Press Timer button once c Press Start button once d Press Micro Power button once 5 Program oven at High power for 1 minute and press Start button a After approximately 3 seconds oven stops operating b During oven operation the input current is approximately 0 4A INPUT CURRENT FAILURE CODE Unplug CN701 0 4A Oven stops in 3 ...

Page 19: ... following the component test procedures 8 2 Measurement of microwave output The output power of the magnetron can be determined by performing IEC standard test procedures However due to the complexity of IEC test procedures it is recommended to test the magnetron using the simple method outlined below Necessary Equipment 1 liter beaker Glass thermometer Wrist watch or stopwatch NOTE Check the lin...

Page 20: ...ge this control panel Always touch ground while working on this panel to discharge any static charge in your body 7 220V AC is present on the digital programmer circuit Terminals of power relay s and primary circuit of Digital Programmer Circuit When troubleshooting be cautious of possible electrical shock hazard Before troubleshooting operate the microwave oven following the correct operating pro...

Page 21: ...ge and cause magnetron to have lower output and or be intermittent 3 Defective high voltage component H V Inverter Power Supply U Magnetron Check high voltage component according to component test procedure and replace if it is defective 4 Open or loose wiring of power relay RY1 5 Defective primary latch switch 6 Defective DPC or power relay RY1 Refer to DPC troubleshooting 5 Oven can program but ...

Page 22: ...you must program the DPC into TEST MODE press Clock button once press Timer button once Press Start button once press Micro Power button once Program unit for operation H95 H97 H98 H99 appears in display window a short time after Start button is pressed and there is no microwave oscillation Alternate way to troubleshoot oven with AC Ampere meter used H95 H97 H98 H99 appears in display window a sho...

Page 23: ... Collector of Q220 voltage Abnormal Q220 and or Q221 Q222 Q225 Q227 Normal 0 7V Step3 3 Short circuit between collector and emitter of Q220 Still not turn on RY1 RY1 turns on Q220 and or Q221 Q222 Q225 Q227 Dark or unclear display 1 Replace display and check operation Normal Display Abnormal IC1 Missing or lighting of unnecessary segment 1 Replace IC1 and check operation Normal IC1 Abnormal Displa...

Page 24: ... procedure Power will Ammeter reading is To do Remedy Shut off in 23 seconds after Start 1 Between 0 5A and 1 0A Check and repair open magnetron circuit Open magnetron wiring between Inverter and magnetron terminal 2 Between 1 0A and 2 0A Check continuity of D702 in Inverter PCB 1 D702 shorted Replace H V Inverter F606YBA00GP 2 D702 is OK Replace magnetron Shut off in 3 seconds after Start 1 Less ...

Page 25: ...1000VDC C702 ZCWF4305N851 FILM CAPACITOR 1 3µF 250VDC DB701 Z0FBBQ000006 RECTIFIER BRIDGE 1 L701 Z5020W100AP CHOKE COIL 1 R702 Z0CM562JA002 SAND BAR RESISTOR 1 T701 Z609ABA00GP TRANSFORMER 1 INCLUDING D701 D702 C706 C707 D701 D702 Z0FBAZ000003 DIODE 2 C706 Z0C3F562A002 FILM CAPACITOR 1 5600PF 3KV C707 Z0C3F822A002 FILM CAPACITOR 1 8200PF 3KV 25 NN GD391S NN GD371M ...

Page 26: ...10 EXPLODED VIEW AND PARTS LIST 10 1 EXPLODED VIEW 26 NN GD391S NN GD371M ...

Page 27: ... F61785U30XN MICRO SWITCH 1 SHORT SWITCH 22 2M236 M36R MAGNETRON 1 23 F606YBA00GP H V INVERTER U 1 24 F6585BA00EP INVERTER BRACKET 1 25 F66629W40HP GROUNDING PLATE 1 27 F62306V60BP FUSE 1 10A ZPE 27 F62309W40HP FUSE 1 10A KTE PTE 28 F62319V00XP FUSE HOLDER 1 KTE PTE 29 F63269W00XP TURNTABLE MOTOR 1 30 F900C9V20HP AC CORD W PLUG 1 KTE 30 F900C9V20ZP AC CORD W PLUG 1 ZPE PTE 31 F61456N60AP THERMAL C...

Page 28: ...o Part Name Description Pcs Set Remarks 60 F0007BB20SZP NAME PLATE 1 GD371M ZPE 60 F0007BB20SKT NAME PLATE 1 GD371M KTE 60 F0007BB20SPT NAME PLATE 1 GD371M PTE 64 MKPX2335K CAPACITOR 1 KTE PTE 28 NN GD391S NN GD371M ...

Page 29: ...S ZPE E3 F800LBB00SZP ESCUTCHEON BASE U 1 GD391S ZPE E4 F891PBA00SEP DOOR OPENING BUTTON U 1 GD391S ZPE E5 F8256BA00EP DOOR OPENING LEVER 1 E6 F80375K00AP COOK BUTTON SPRING 1 E7 F9009BA00EP GROUNDING PANEL 1 GD391S ZPE E8 F803GBA00SEP POP OUT DIAL U 1 GD391S ZPE E9 F8018BA00EP DIAL SUPPORT 1 E10 F8298BA10KBP BUTTON 1 GD391S ZPE E13 F66168J00XP FLAT CABLE 1 29 NN GD391S NN GD371M ...

Page 30: ... OPENING BUTTON U 1 GD371M E25 F8256BA00EP DOOR OPENING LEVER 1 E26 F80375K00AP COOK BUTTON SPRING 1 E28 F803G9M60SBP POP OUT DIAL U 1 GD371M E29 F8018BA00EP DIAL SUPPORT 1 E30 F8298BA10SBP BUTTON 1 GD371M E33 F66168J00XP FLAT CABLE 1 E34 F8126BB20ZP DISPLAY WINDOW 1 GD371M ZPE E34 F8126BB20PT DISPLAY WINDOW 1 GD371M KTE GD371M PTE E36 F8127BA10BP BACK PANEL 1 GD371M E37 F8257BA10BP LEVER BRACKET ...

Page 31: ...tion Pcs Set Remarks D1 F30189V00XP DOOR KEY A 1 D3 F302KBA00EP DOOR E U 1 D4 F30215G10XN DOOR KEY SPRING 1 D5 F30859V00XP DOOR C 1 D6 F3145BB10EP DOOR SCREEN A 1 D8 F302ABB10SEP DOOR A U 1 GD391S D8 F302ABB20SZP DOOR A U 1 GD371M 31 NN GD391S NN GD371M ...

Page 32: ... WIRING MATERIALS Ref No Part No Part Name Description Pcs Set Remarks W1 F030ABB00ZP LEAD WIRE HARNESS 1 ZPE W1 F030ABB20HP LEAD WIRE HARNESS 1 KTE PTE W2 F030EBA00EP H V LEAD WIRE 1 32 NN GD391S NN GD371M ...

Page 33: ...391S ZPE P2 F0102BB20SZP PACKING CASE PAPER 1 GD371M ZPE P2 F0102BB20SKP PACKING CASE PAPER 1 GD371M KTE GD371M PTE P3 F01049V00XP UPPER FILLER 1 P4 F01059V00XP LOWER FILLER 1 P5 F01068100XN P E BAG 1 P6 F01075G10XN DOOR SHEET 1 P7 A0601BA00EP COOKING TRAY 1 P8 F01924T00AP SHEET 1 P9 F01085G50XN RACK PACKING 1 P10 F060V8H00BP OVEN RACK 1 P16 F01099V20HP FOAM 1 KTE P17 F0445BB20BKT OVERLAY 1 GD371M...

Page 34: ...11 DIGITAL PROGRAMMER CIRCUIT 11 1 SCHEMATIC DIAGRAM 34 NN GD391S NN GD371M ...

Page 35: ...35 NN GD391S NN GD371M ...

Page 36: ...LCD HOLDER 1 F67525E20XN DIFFUSION SHEET 1 D40 D41 D220 D227 D228 D229 B0AACK000004 DIODE 6 D11 AESB2100TLRC DIODE 1 D28 B0HAMT000018 DIODE 1 D29 B0HAMM000106 DIODE 1 D490 B0AADM000003 DIODE 1 D491 B0JAAE000001 DIODE 1 D30 B0EDKR000014 BRIDGE DIODE 1 IC1 MN69F009AK1 L S I 1 IC24 IC27 B3PAA0000387 IC 2 IC10 C0DBAHD00013 IC 1 IC26 MIP2K30MSSCF IC 1 D25 D4EAY511A036 ZENER RESISTOR 1 510V KTE PTE D26 ...

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