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ORDER NO.PHAMOS0603017A2
Microwave Oven
NN-GD566M
NN-GD556W
NN-GD546W
NN-SD466M
NN-SD456W
NN-SD446W
BPQ(U.K.)
EPG(France, Italy, Finland, Spain, Portugal, Greece, Poland, Holland)
WPG(Switzerland)
SPG(Norway, Finland, Sweden, Denmark)
Please file and use this specified manual together with the service manual for Model NN-V653WF (ORDER NO.
SIMMC0303012C2).
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Table of Contents
Troubleshooting
Related Manuals for Panasonic NN-SD466M
Summarization of Contents
Safety and Precautions
General Warnings
Important safety warnings for service technicians and users regarding potential hazards.
Lead-Free Solder Handling
Guidelines for working with lead-free solder due to its higher melting point.
Inverter Power Supply Information
High Voltage & Temperature Dangers
Critical warnings about high voltage and temperature hazards associated with the inverter.
Inverter Operational Warnings
Essential precautions and prohibitions for servicing the inverter power supply unit.
Troubleshooting Procedures
Grounding Checks
Ensuring proper grounding of the microwave oven is crucial for safety.
Inverter Specific Warnings
Detailed warnings regarding high voltage, heat, and capacitor discharge in the inverter.
Service and Replacement Guidelines
Part Replacement Procedures
Steps and precautions for replacing components within the microwave oven.
Fuse Replacement and Switch Checks
Procedure for replacing a blown fuse and checking related switches.
Cavity Hole Safety
Warning against inserting foreign objects into the oven cavity to prevent microwave leakage.
Post-Repair Confirmation
Essential checks after repair to ensure safe operation and prevent microwave leakage.
Measurements and Adjustments
Sharp Edges Caution
Precautionary note about sharp edges during handling and installation.
Latch Switch Adjustment
Procedure for adjusting door latch switches for proper operation and safety.
Microwave Output Measurement
Measuring Microwave Output
Method for measuring the magnetron's output power using a simple water test.
Parts Identification
Exploded View and Parts List
Visual guide to microwave components and their corresponding part numbers.
Component Parts List
Detailed list of all replaceable parts with part numbers and descriptions.
Component Details
H.V. Inverter Main Parts
Specific parts list for the High Voltage Inverter unit.
Assembly and Material Details
Wiring Materials
List of wiring harnesses and cables used in the microwave oven.
Escutcheon Base Assembly
Components related to the escutcheon base and its assembly.
Accessory and Packing Information
Packing and Accessories List
Details on packaging materials and included accessories for the microwave oven.
Digital Programmer Circuit Information
Schematic Diagram
Schematic diagram for the digital programmer circuit of the microwave.
Parts List
List of parts for the digital programmer circuit.
Schematic Diagrams
Schematic for Grill Models
Wiring schematic specifically for microwave ovens with grill functionality.
Schematic for Solo Models
Wiring schematic for microwave ovens without grill functionality.
Inverter System Warnings
High Voltage Inverter Dangers
Critical warnings about high voltage and temperature hazards associated with the inverter.
Inverter Operational Warnings
Essential precautions and prohibitions for servicing the inverter power supply unit.
General Safety and Handling
Service Information Warnings
Important safety disclaimers and warnings for service personnel.
Lead-Free Solder Caution
Guidance on handling lead-free solder, including temperature settings.
Microwave Leakage Testing
Equipment for Leakage Testing
Tools required for measuring microwave energy leakage.
Radiation Leakage Measurement Procedure
Step-by-step instructions for measuring microwave energy leakage.
Leakage Measurement Protocols
Outer Panel Removed Measurement
Procedure for measuring leakage with the outer panel detached.
Assembled Oven Measurement
Procedure for measuring leakage on a fully assembled microwave oven.
Record Keeping and Calibration
Guidelines for recording leakage readings and calibrating test equipment.
Troubleshooting Common Issues
Oven Stops During Cooking
Diagnosing and correcting issues where the oven stops unexpectedly during cooking.
Inverter and Programmer Troubleshooting
Inverter Circuit Troubleshooting
Diagnosing problems related to the inverter circuit and magnetron using failure codes.
Digital Programmer Circuit Troubleshooting
Troubleshooting steps for the digital programmer circuit based on symptoms.
Troubleshooting Symptoms and Causes
Semiconductor Checks
Guide to testing semiconductor components like diodes and transistors with an ohmmeter.
Parts and Assembly Diagrams
Exploded View and Parts List
Diagram showing exploded parts and their reference numbers for assembly.
Component Parts Listing
General Parts List
Comprehensive list of all parts with part numbers, descriptions, and remarks.
Assembly Specifics
Door Assembly
Instructions and diagrams for assembling or disassembling the microwave oven door.
Material and Interface Details
Wiring Materials
List of wiring harnesses and lead wires used in the unit.
Control Panel Assembly
Escutcheon Base Assembly
Components and diagrams for the escutcheon base assembly.
Packaging and Accessories
Packing and Accessories List
Details of packing materials and accessories included with the product.
Digital Programmer Circuit (BPQ & GPG Models)
Schematic Diagram
Schematic diagram for the digital programmer circuit (BPQ & GPG models).
Digital Programmer Circuit (EPG Models)
Schematic Diagram
Schematic diagram for the digital programmer circuit (EPG models).
Digital Programmer Circuit (BPQ & GPG Models)
Parts List
Parts list for the digital programmer circuit (BPQ & GPG models).
Digital Programmer Circuit (EPG Models)
Parts List
Parts list for the digital programmer circuit (EPG models).
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