Panasonic NE-3280, NE-2180C manual Check the grounding

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NE-3280 / NE-2180 / NE-2180C

10 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING

Unlike many other appliances, the microwave oven is high- voltage, high-current equipment. Though it is free from danger in ordinary use, extreme care should be taken during repair.

CAUTION

Servicemen should remove their watches whenever working close to or replacing the magnetron.

10.1. Check the grounding

Do not operate on a 2-wire extension cord. The microwave oven is designed to be used when grounded. It is imperative, therefore, to make sure it is grounded properly before beginning repair work.

10.2.Warning about the electric charge in the high voltage capacitor (

Figure).

For about 30 seconds after the oven is turned off, an electric charge remains in the high voltage capacitor. When replacing or checking parts, remove the power plug from the outlet and short the terminal of the high voltage capacitor (terminal of lead wire from diode) to chassis ground with and insulated handle screwdriver or insulated jumper lead wire to discharge.

WARNING

There is high-voltage present, with high-current capabilities in the circuits of the high voltage winding and filament winding of the high voltage transformer. It is extremely dangerous to work on or near these circuits with oven energized.

DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron.

WARNING

Never touch any circuit wiring with your hand nor with an insulated tool during operation.

10.3.When parts must be replaced, remove the power plug from the outlet.

10.4.When the 15 Amp. (NE- 2180/NE-2180C) or 20 Amp. (NE-3280) fuse is blown due to the operation of interlock monitor, replace the necessary components according to the following table.

10.5.Avoid inserting nails, wire, etc. through any holes in the unit during operation.

Never insert a wire, nail or any other metal object through the lamp holes on the cavity or any other holes or gaps, because such objects may work as an antenna and cause microwave leakage.

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Contents NE-3280 NE-2180 NE-2180C Contents Wiring Material Digital Programmer Circuit Control Panel Operation Procedure NE-3280 / NE-2180 / NE-2180C NE-3280 / NE-2180 / NE-2180C NE-3280 / NE-2180 / NE-2180C Schematic Diagram NE-3280 USA Wiring Diagram NE-3280 USA Schematic Diagram NE-2180C Canada Wiring Diagram NE-2180C Canada Schematic Diagram NE-2180 USA Wiring Diagram NE-2180 USA Description of Operating Sequence Defrost controlCheck the grounding Confirm after repair Disassembly and Parts ReplacementMagnetrons Upper and Lower Disassembly of door assembly Digital programmer circuit boardLower antenna Right and Left Upper antenna Right and LeftVoltage selection 208V→ Component Test Procedure Short/Monitor Switch Both Right and LeftHigh voltage capacitor MagnetronProtector diode DiodeTemp sensor Thermal protector Measurements and Adjustments Switch operationMeasurement of microwave output Procedure for Measuring Radiation LeakageEquipment Procedure for measuring radiation leakage Troubleshooting Guide Beep sounds Expoded View and Parts List NE-3280 / NE-2180 / NE-2180C Parts List Base AIR Filter Flameu XYN5+C8BN Screw NE-32805X8FOR Noise Filter Door Assemble Escutcheon Base Assemble Packing and Accessories Wiring Material Lead Wire Harness Surge Absorber a Digital Programmer Circuit NE-3280 / NE-2180 / NE-2180C Parts List 3A4 APR

NE-2180C, NE-2180, NE-3280 specifications

Panasonic's commercial microwaves, including the NE-3280, NE-2180, and NE-2180C, are designed to meet the demanding needs of the foodservice industry. Each model is engineered to ensure optimal performance, efficiency, and durability, making them ideal for restaurants, cafes, and catering services.

Starting with the Panasonic NE-3280, it features a powerful 1800 watts of cooking power. This industrial-grade microwave offers a spacious 0.9 cubic feet interior, allowing for larger dishes and more significant quantities of food to be heated at once. The NE-3280 is equipped with a user-friendly touch control panel that provides easy access to multiple power levels and cooking times, which can be stored in memory for quick recalls. A key feature is its inverter technology, which delivers a steady stream of power for even cooking and defrosting, ensuring food retains its texture and flavor without overcooking.

Next, the NE-2180 model also showcases cutting-edge inverter technology but with a slightly lower wattage of 1,200 watts. This model maintains a compact design while providing a substantial 0.8 cubic feet of cooking capacity. It's tailored for smaller kitchens or operations looking for efficiency without compromising quality. The NE-2180 comes with programmable menus enabling quick selection of common cooking tasks, improving speed during busy service periods. Furthermore, the stainless-steel exterior makes the unit easy to clean and resistant to wear over time.

The NE-2180C variant is similar to the NE-2180 but is designed with specific features for enhanced versatility in food preparation. It includes a reliable cooking timer and a convenient one-touch control for reheating items quickly. The NE-2180C also sports a robust construction tailored for high-volume use. All three models boast a design that enhances safety with features like a cooling fan to prevent overheating and a child safety lock.

In summary, Panasonic's NE-3280, NE-2180, and NE-2180C microwaves represent a blend of innovation, reliability, and versatility. Each model is geared toward improving efficiency in commercial kitchens while ensuring the quality of heated food. With their durable design, user-friendly controls, and advanced technologies, these microwaves are essential tools for any foodservice operation looking to enhance its meal preparation process.
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