Panasonic NN-G335WF Service Manual
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Summary of Contents for Panasonic NN-G335WF
- Page 1 ORDER NO.PHAMOS0812054C3 Microwave Oven NN-G335WF TUE (India) © Panasonic Home Appliances Microwave Oven (Shanghai) Co., Ltd. 2008.
- Page 2 NN-G335WF...
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Page 3: Table Of Contents
NN-G335WF CONTENTS Page Page 1 SCHEMATIC DIAGRAM 5.1. Primary, Secondary Latch Switch Interlocks 2 DESCRIPTION OF OPERATING SEQUENCE 5.2. Short Switch & Monitor 2.1. Variable power cooking control 5.3. High voltage transformer 2.2. Turbo Defrost, Auto Reheat, Auto Cook control 5.4. -
Page 4: Schematic Diagram
NN-G335WF 1 SCHEMATIC DIAGRAM... -
Page 5: Description Of Operating Sequence
NN-G335WF 2 DESCRIPTION OF OPERATING SEQUENCE 2.1. Variable power cooking 2.2. Turbo Defrost, Auto Reheat, control Auto Cook control The coil of power relay B (RY1) is energized intermittently by When those Auto Control feature is selected and the Start Pad... -
Page 6: Cautions To Be Observed When Troubleshooting
NN-G335WF 3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING Unlike many other appliances, the microwave oven is high- 3.3. When parts must be replaced, voltage, high-current equipment. Though it is free from danger unplug the power cord from in ordinary use, extreme care should be taken during repair. -
Page 7: Disassembly And Parts Replacement Procedure
NN-G335WF 4 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 4.1. Magnetron 4.2. Digital Programmer Circuit (DPC) and membrane key 1. Discharge the high voltage capacitor. board. 2. Remove 1 screw holding air guide A & reinforce bracket. 3. Disconnect 2 high voltage lead wires from magnetron NOTE: filament terminals. -
Page 8: Low Voltage Transformer And/Or Power Relays (Ry1, Ry2)
NN-G335WF 4.4. Fan motor 4.3. Low voltage transformer and/or power relays (RY1, 1. Disconnect 2 lead wires from fan motor terminals. RY2) 2. Remove 1 screw holding diode (U) on side of the oven. 3. Disconnent 2 H.V. lead wires which linking to H.V. -
Page 9: Door Assembly
NN-G335WF 4.5. Door assembly 4.6. Turntable motor 1. Remove door C from door E by carefully pulling outward 1. Remove the motor cover by breaking off at the 4 spots starting from upper right hand corner using a flat blade indicated by arrows with a cutter or the like. -
Page 10: Quartz Heater
NN-G335WF 4.7. Quartz heater 1. Disconnect lead wires from heater terminals. 2. Remove 1 screw holding heater supports. 3. Remove the heater by pulling it out. -
Page 11: Component Test Procedure
NN-G335WF 5 COMPONENT TEST PROCEDURE 5.3. High voltage transformer WARNING 1. High voltage is present at the high voltage terminal of the high voltage transformer during any cook cycle. 1. Remove connectors from the transformer terminals and 2. It is neither necessary nor advisable to attempt measurement of the check continuity. -
Page 12: Magnetron
NN-G335WF 5.5. Magnetron 5.6. Diode (U) Continuity checks can only indicate an open filament or a 1. Isolate the diode (U) from the circuit by disconnecting the shorted magnetron. To diagnose for an open filament or leads. shorted magnetron: 2. With the ohmmeter set on the highest resistance scale, 1. -
Page 13: Measurements And Adjustments
NN-G335WF 6 MEASUREMENTS AND ADJUSTMENTS 6.1. Adjustment of Primary latch 6.2. 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 14: Troubleshooting Guide
NN-G335WF 7 TROUBLESHOOTING GUIDE DANGER: HIGH VOLTAGES 1. Ensure proper grounding before troubleshooting. 2. Be careful of high voltage circuit. 3. Discharge high voltage capacitor. 4. 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. -
Page 15: Trouble Related To Digital Programmer Circuit
NN-G335WF 7.1. Trouble related to Digital Programmer Circuit... -
Page 16: How To Check The Semiconductors Using An Ohm Meter
NN-G335WF 7.2. How To CHECK THE SEMICONDUCTORS USING AN OHM METER... -
Page 17: Exploded View And Parts List
NN-G335WF 8 EXPLODED VIEW AND PARTS LIST 8.1. EXPLODED VIEW... -
Page 18: Parts List
NN-G335WF 8.2. 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 19: Door Assembly
NN-G335WF 8.3. DOOR ASSEMBLY Ref. No. Part No. Part Name & Description Pcs/Set Remarks F30186S10XP DOOR KEY A F301A6S10HXP DOOR A (U) F302K6S40XP DOOR E (U) F30216S10XP DOOR KEY SPRING F30856S10XP DOOR C F31455G10XN DOOR SCREEN A F31466S10XP DOOR SCREEN B... -
Page 20: Wiring Materials
NN-G335WF 8.4. WIRING MATERIALS Ref. No. Part No. Part Name & Description Pcs/Set Remarks F030A6R60XP LEAD WIRE HARNESS... -
Page 21: Packing And Accessories
NN-G335WF 8.5. PACKING AND ACCESSORIES Ref. No. Part No. Part Name & Description Pcs/Set Remarks F00036R60HP INSTRUCTION MANUAL F01026R60HYT PACKING CASE, PAPER F01048L50XP UPPER FILLER F01056S10XP LOWER FILLER F01068100XN P.E BAG F01075G10XN DOOR SHEET F06016D00XN COOKING TRAY F01924T00AP SHEET F01085G50XN... -
Page 22: Escutcheon Base Assembly
NN-G335WF 8.6. ESCUTCHEON BASE ASSEMBLY Ref. No. Part No. Part Name & Description Pcs/Set Remarks F603L6R60HP D.P.CIRCUIT (AU) F630Y6R60HTU MEMBRANE SWITCH (U) F80346S20HXP ESCUTCHEON BASE F67006S20XP RUBBER CONNECTOR L5AAAEC00062 DISPLAY... -
Page 23: Digital Programmer Circuit
NN-G335WF 9 DIGITAL PROGRAMMER CIRCUIT 9.1. SCHEMATIC DIAGRAM... - Page 24 NN-G335WF...
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Page 25: Parts List
NN-G335WF 9.2. PARTS LIST Ref. No. Part No. Part Name & Description Pcs/Set Remarks BZ310 L0DDEA000014 BUZZER 2.0KHz F2A1C220B624 AL CHEM CAPACITOR 22µF/16V CX320 H2B800400007 CERAMIC RESONATOR 8.00MHz D14,D220-D225,D228 MA2C19600E DIODE MN101C78ADG L.S.I. IC350 C0EBE0000401 CMOS CHIP B1BAAJ000003 TRANSISTOR Q223...