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General| Microwave Power | 900W |
|---|---|
| Turntable | Yes |
| Control Type | Touch Control |
| Auto Cook Menu | Yes |
| Grill | No |
| Convection | No |
| Color | White |
| Power Output | 1200 Watts |
| Capacity | 27 L |
Service information is for experienced technicians; improper repair can cause injury or death.
Precautions for using lead-free solder, including melting point and handling.
Dangers associated with the inverter power supply, including high voltage and heat.
Specific DO NOT instructions for working with the inverter circuit to avoid shock or burns.
Illustrates wiring connections for various components within the oven.
Symbols and color codes for wires, connectors, and components.
How the inverter power supply controls output power using PWM signals.
Details on how the inverter circuit generates high voltage for the magnetron.
Sequence for Auto Control features like Turbo Defrost and Auto Cook.
Function of the thermistor in detecting magnetron temperature and preventing overheating.
How the digital programmer controls oven cavity temperature using the heater.
Operation of grill cooking using upper heaters and power relay cycling.
General warnings for servicing, including grounding, high voltage, and component handling.
Guidelines for part replacement, fuse issues, and avoiding microwave leakage.
Checks required after repairs, including screw tightness and leakage tests.
Caution regarding sharp internal edges during assembly and disassembly.
Testing primary/secondary latch switches, short switch, and power relay RY1 continuity.
Testing magnetron continuity and membrane switch assembly.
Procedures to test the HV inverter unit for correct function and failure codes.
Testing the thermistor's resistance and checking its displayed level.
Adjusting door hook assembly and checking switch continuity after mounting.
Procedure to measure microwave output power using a simple water heating test.
Essential safety precautions for troubleshooting high voltage circuits.
Diagnostic steps for when the oven stops operation unexpectedly during cooking.
Troubleshooting common issues like no display, fan operation, or low microwave output.
Diagnosing H95, H97, H98, H99 codes related to magnetron and inverter.
Using AC ampere meter for quick diagnosis of inverter/magnetron issues.
Procedures for testing semiconductors like diodes, transistors, and IGBTs.
Visual representation of all microwave oven components and their assembly.
Comprehensive list of parts, including part numbers and safety notices.
Diagram and list of parts for the microwave oven door assembly.
Parts list for escutcheon base specific to NN-A574SF and NN-CT579S models.
Parts list for escutcheon base specific to NN-A554WF, NN-A524MF, CT569M, CT559W models.
Identification and part numbers for various lead wire harnesses used in the oven.
List of packing cases and filler materials used for product packaging.
List of accessories included with the microwave oven, such as trays and racks.
Detailed schematic of the digital programmer circuit for NN-A574SF and CT579S models.
Detailed schematic of the digital programmer circuit for NN-A554WF, A524MF, CT569M, CT559W models.
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