Related Manuals for Panasonic NN-GD391S
Summary of Contents for Panasonic NN-GD391S
- Page 1 ORDER NO.PHAMOS1107076CE Microwave Oven NN-GD391S NN-GD371M KTE (UAE) PTE (Iran) ZPE (CIS Countries) © Panasonic Home Appliances Microwave Oven (Shanghai) Co., Ltd. 2011.
- Page 2 NN-GD391S / NN-GD371M...
- Page 3 NN-GD391S / NN-GD371M...
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Page 4: Table Of Contents
7.1. Primary, Secondary Latch Switch interlocks & Power 3 SCHEMATIC DIAGRAM Relay RY1 3.1. NN-GD371M KTE/PTE 7.2. Short switch & monitor 3.2. NN-GD391S ZPE, GD371M ZPE 7.3. Magnetron 4 DESCRIPTION OF OPERATING SEQUENCE 7.4. DC fan motor 4.1. Variable power cooking control 7.5. -
Page 5: Feature Chart
NN-GD391S / NN-GD371M 1 FEATURE CHART 2 CONTROL PANEL... -
Page 6: Schematic Diagram
NN-GD391S / NN-GD371M 3 SCHEMATIC DIAGRAM 3.1. NN-GD371M KTE/PTE... -
Page 7: Nn-Gd391S Zpe, Gd371M Zpe
NN-GD391S / NN-GD371M 3.2. NN-GD391S ZPE, GD371M ZPE... -
Page 8: Description Of Operating Sequence
NN-GD391S / NN-GD371M 4 DESCRIPTION OF OPERATING SEQUENCE 4.1. Variable power cooking 4.3. Turbo defrost, Auto cook control When the Auto Control feature is selected and the [Start] pad is tapped: High Voltage Inverter Power Supply (U) controls output power 1. -
Page 9: Cautions To Be Observed When Troubleshooting
NN-GD391S / NN-GD371M 5 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING Unlike many other appliances, the microwave oven is a high voltage, high current device. It is free from danger in ordinary use, though extreme care should be taken during repair. -
Page 10: Part Replacement
NN-GD391S / NN-GD371M 5.3. Part replacement. 5.7. Sharp edges When troubleshooting any part or component is to be replaced, CAUTION always ensure that the power cord is unplugged from the wall Please use caution when disassembling or reassembling outlet. internal parts. Some exposed edges may be sharp to the 5.4. -
Page 11: Disassembly And Parts Replacement Procedure
NN-GD391S / NN-GD371M 6 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 6.1. Magnetron 6. Remove 2 screws holding the magnetron. 1. Discharge the high voltage capacitor. 2. Remove 1 screw holding front plate bracket on cavity top plate. 3. Remove 2 screws holding air guide A on cavity top plate and on magnetron. -
Page 12: Low Voltage Transformer And/Or Power Relays (Ry1)
NN-GD391S / NN-GD371M 6.4. DC fan motor 2. Disconnect 1 grounding connector from cavity front plate. 1. Disconnect DC fan motor connect CN15 from DPC board 2. Remove 2 screws holding orifice assy and detach the orifice assy from oven assy. -
Page 13: Door Assembly
NN-GD391S / NN-GD371M 3. Remove door C from door A (U) & door E by carefully 6.5. Door assembly pulling outward starting from upper right hand corner using a flat blade screwdriver. 1. Support the door, remove 2 screws holding hinge A. -
Page 14: Turntable Motor
NN-GD391S / NN-GD371M 6.6. Turntable motor 9. Tighten 2 mounting screws. 1. Remove the motor cover by breaking off at the 4 spots indicated by arrows with a cutter or the like. NOTE: After removing the motor cover, be sure that cut... -
Page 15: Quartz Heater
NN-GD391S / NN-GD371M 6.8. H.V. Inverter Power Supply 6.7. Quartz heater 1. Disconnect 2 high voltage lead wires from magnetron 1. Disconnect lead wires from both side of heater terminals. filament terminals. 2. Bend back 2 locking tabs from left and right side of upper 2. - Page 16 NN-GD391S / NN-GD371M 6. Remove 2 screws holding H.V. inverter on the inverter bracket.
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Page 17: Component Test Procedure
NN-GD391S / NN-GD371M 7 COMPONENT TEST PROCEDURE 7.3. Magnetron WARNING 1. High voltage is present at the output terminals of the High Voltage Inverter (U) including aluminum heat sink during any cook cycle. Continuity checks can only indicate an open filament or a 2. -
Page 18: Inverter Power Supply (U)
NN-GD391S / NN-GD371M 7.5. Inverter power supply (U) d. Press Micro Power button once. DO NOT try to REPAIR H.V. Inverter power supply 5. Program oven at High power for 1 minute and press [Start] (U).Replace complete H.V. Inverter(U) Unit. -
Page 19: Measurements And Adjustments
NN-GD391S / NN-GD371M 8 MEASUREMENTS AND ADJUSTMENTS 8.1. Adjustment of Primary latch 8.2. Measurement of microwave switch, Secondary latch output switch and Short switch. The output power of the magnetron can be determined by performing IEC standard test procedures. However, due to the 1. -
Page 20: Troubleshooting Guide
NN-GD391S / NN-GD371M 9 TROUBLESHOOTING GUIDE DANGER: HIGH VOLTAGES 1. DO NOT RE-ADJUST PRESET CONTROL on the H.V.Inverter (U). It is very dangerous to repair or adjust without proper test equipment because this circuit generates very large current and high voltage. Operating a misaligned inverter circuit is dangerous. - Page 21 NN-GD391S / NN-GD371M SYMPTOM CAUSE CORRECTIONS 1. Oven is dead. 1. Open or loose lead wire harness Fuse is OK. 2. Open thermal cutout / thermistor Check thermal cutout is defective. No display and no operation at all. 3. Open low voltage transformer 4.
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Page 22: Troubleshooting Of Inverter Circuit (U) And Magnetron
NN-GD391S / NN-GD371M 9.2. Troubleshooting of inverter circuit (U) and magnetron This oven is programmed with a self diagnostics failure code system which will help for troubleshooting. H95, H97, H98 and H99 are the provided failure codes to indicate magnetron and inverter circuit problem areas. This section explains failure codes of H95, H97, H98 and H99. -
Page 23: Trouble Related To Digital Programmer Circuit
NN-GD391S / NN-GD371M 9.3. Trouble related to Digital Programmer Circuit SYMPTOM STEP CHECK RESULT CAUSE/CORRECTIONS →Step2 No display when oven is first plugged Fuse pattern of D.P.C. Normal Open Replace D.P.C. or Fuse Pattern Low voltage transforment (L.V.T.) Abnormal 0V L.V.T. -
Page 24: Simple Way Of H.v. Inverter/Magnetron Troubleshooting
NN-GD391S / NN-GD371M 9.4. Simple way of H.V. Inverter/magnetron troubleshooting Purpose: Simple way (3/23 seconds rule) of identifying whether it’s Magnetron, Inverter, or others. Set-up: The unit under question is connected through the Ammeter as shown below. Procedure: Follow the matrix table below to identify the problem source. -
Page 25: Inverter Main Parts List (F606Yba00Gp)
NN-GD391S / NN-GD371M 9.6. H.V. INVERTER MAIN PARTS LIST (F606YBA00GP) Ref. No. Part No. Part Name & Description Pcs/Set Remarks Q701 Z1JAEV000003 IGBT C701 ZCWHC3B104JA FILM CAPACITOR 0.1µF,1000VDC C702 ZCWF4305N851 FILM CAPACITOR 3µF,250VDC DB701 Z0FBBQ000006 RECTIFIER BRIDGE L701 Z5020W100AP CHOKE COIL... -
Page 26: Exploded View And Parts List
NN-GD391S / NN-GD371M 10 EXPLODED VIEW AND PARTS LIST 10.1. EXPLODED VIEW... -
Page 27: Parts List
NN-GD391S / NN-GD371M 10.2. PARTS LIST NOTE: 1. When ordering replacement part(s), please use part number(s) shown in this part list. Do not use description of the part. 2. Important safety notice: Components identified by mark have special characteristics important for safety. - Page 28 NN-GD391S / NN-GD371M Ref. No. Part No. Part Name & Description Pcs/Set Remarks F0007BB20SZP NAME PLATE GD371M ZPE F0007BB20SKT NAME PLATE GD371M KTE F0007BB20SPT NAME PLATE GD371M PTE MKPX2335K CAPACITOR KTE,PTE...
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Page 29: Escutcheon Base Assembly
NN-GD391S / NN-GD371M 10.3. ESCUTCHEON BASE ASSEMBLY 10.3.1. NN-GD391S Ref. No. Part No. Part Name & Description Pcs/Set Remarks F603LBB20ZP D.P.CIRCUIT (AU) GD391S ZPE F603YBB10BP D.P.CIRCUIT (DU) GD391S ZPE F800LBB00SZP ESCUTCHEON BASE (U) GD391S ZPE F891PBA00SEP DOOR OPENING BUTTON (U) - Page 30 NN-GD391S / NN-GD371M 10.3.2. NN-GD371M Ref. No. Part No. Part Name & Description Pcs/Set Remarks F603LBB20ZP D.P.CIRCUIT (AU) GD371M ZPE F603LBB20KT D.P.CIRCUIT (AU) GD371M KTE,GD371M PTE F603YBB10BP D.P.CIRCUIT (DU) GD371M ZPE F603YBB20HP D.P.CIRCUIT (DU) GD371M KTE,GD371M PTE F8034BA10SBP ESCUTCHEON BASE...
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Page 31: Door Assembly
NN-GD391S / NN-GD371M 10.4. DOOR ASSEMBLY Ref. No. Part No. Part Name & Description Pcs/Set Remarks F30189V00XP DOOR KEY A F302KBA00EP DOOR E (U) F30215G10XN DOOR KEY SPRING F30859V00XP DOOR C F3145BB10EP DOOR SCREEN A F302ABB10SEP DOOR A (U) GD391S... -
Page 32: Wiring Materials
NN-GD391S / NN-GD371M 10.5. WIRING MATERIALS Ref. No. Part No. Part Name & Description Pcs/Set Remarks F030ABB00ZP LEAD WIRE HARNESS F030ABB20HP LEAD WIRE HARNESS KTE,PTE F030EBA00EP H.V.LEAD WIRE... -
Page 33: Packing And Accessories
NN-GD391S / NN-GD371M 10.6. PACKING AND ACCESSORIES Ref. No. Part No. Part Name & Description Pcs/Set Remarks F0003BB00ZP INSTRUCTION MANUAL GD391S ZPE,GD371M ZPE F0003BB20KT INSTRUCTION MANUAL GD371M KTE,GD371M PTE F0102BB00SZP PACKING CASE, PAPER GD391S ZPE F0102BB20SZP PACKING CASE, PAPER GD371M ZPE... -
Page 34: Digital Programmer Circuit
NN-GD391S / NN-GD371M 11 DIGITAL PROGRAMMER CIRCUIT 11.1. SCHEMATIC DIAGRAM... - Page 35 NN-GD391S / NN-GD371M...
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Page 36: Parts List
NN-GD391S / NN-GD371M 11.2. PARTS LIST Ref. No. Part No. Part Name & Description Pcs/Set Remarks BZ210 L0DDEA000014 BUZZER 2.0KHz F2A1C471B626 AL CHEM CAPACITOR 470µF/16V F2A1C220B624 AL CHEM CAPACITOR 22µF/16V F2A2W220A034 AL CHEM CAPACITOR 22µF/450V F2A1H1R0B574 AL CHEM CAPACITOR 1µF/50V...