Panasonic NN-ST678S, NN-SD698S manual Measurements and Adjustments, Measurement of microwave output

Page 16

NN-SD698S / NN-ST678S / NN-ST658W

6 MEASUREMENTS AND ADJUSTMENTS

6.1.Adjustment of primary latch switch, secondary latch switch and monitor interlock switch.

1.Mount the Primary latch switch, the Secondary latch switch and the Monitor interlock switch to the door hook assembly as shown in illustration.

NOTE:

No specific individual adjustments during installation of the Primary latch switch, Secondary latch switch or Monitor interlock switch to the door hook are required.

2.When mounting the door hook assembly to the oven assembly, adjust the door hook assembly by moving it in the direction of the arrows in the illustration so that the oven door will not have any play in it. Check for play in the door by pulling the door assembly. Make sure that the latch keys move smoothly after adjustment is completed. Completely tighten the screws holding the door hook assembly to the oven assembly.

3.Reconnect the monitor interlock switch and check the continuity of the monitor circuit and all latch switches again by following the component test procedures.

6.2.Measurement of microwave output

The output power of the magnetron can be determined by performing IEC standard test procedures. However,due to the complexity of IEC test procedures, it is recommended to test the magnetron using the simple method outlined below.

Necessary Equipment:

*1 liter beaker *Glass thermometer *Wrist watch or stopwatch

NOTE:

Check the line voltage under load.Low voltage will lower the magnetron output. Take the temperature readings and heating time as accurately as possible.

1.Fill the beaker with exactly one liter of tap water.Stir the water using the thermometer and record the water’s temperature. (recorded as T1).

2.Place the beaker on the center of glass tray.

Set the oven for High power and heat it for exactly one minute.

3.Stir the water again and read the temperature of the water. (recorded as T2).

4.The normal temperature rise at High power level for each model is as shown in table.

TABLE (1L-1min. test)

RATED OUTPUT

TEMPERATURE RISE

1200W

Min. 18.5°F(10.3°C)

1300W

Min. 19.8°F(11.1°C)

16

Image 16
Contents NN-SD698S NN-ST678S NN-ST658W NN-SD698S / NN-ST678S / NN-ST658W NN-SD698S / NN-ST678S / NN-ST658W Contents Schematic Diagram Variable power cooking control Inverter power supply circuitDescription of Operating Sequence Inverter defrostSensor reheat ThermistorExplanation of the Auto Sensor Cooking process Balance of cooking time T2 timeCheck the grounding Inverter warningsInverter warning Grounding of the inverter circuit boardPart replacement Verification after repairSharp edges Discharging the high voltage capacitorsDisassembly and Parts Replacement Procedure MagnetronDigital programmer circuit D.P.C To replace membrane key boardLow voltage transformer and/or power relays RY1, RY2 Door assemblyTo re-install components Fan motorTurntable motor Steam sensorInverter power supply Component Test Procedure Monitor Interlock SwitchTemperature thermistor Inverter power supply UTest Measurements and Adjustments Measurement of microwave outputProcedure for Measuring Microwave Energy Leakage EquipmentNN-SD698S / NN-ST678S / NN-ST658W Troubleshooting Guide Troubleshooting Oven stops operation during cookingTroubleshooting Other problems Troubleshooting of inverter circuit U and magnetron Alternate way to troubleshoot oven with AC Ampere meter usedSimple WAY of H.V. INVERTER/MAGNETRON Troubleshooting H.V.INVERTER Board Main Parts List F606Y8M00APProcedure PurposeHow to check the semiconductors using an OHM meter Exploded View and Parts List Exploded ViewParts List Inverter Bracket Wiring Materials Door Assembly Escutcheon Base Assembly NN-SD698SNN-ST678S NN-ST658W Packing and Accessories Digital Programmer Circuit NN-SD698SNN-SD698S / NN-ST678S / NN-ST658W NN-ST678S NN-SD698S / NN-ST678S / NN-ST658W NN-ST658W NN-SD698S / NN-ST678S / NN-ST658W NN-SD698S 01/08
Related manuals
Manual 60 pages 50.3 Kb

NN-ST658W, NN-ST678S, NN-SD698S specifications

The Panasonic NN-SD688S and NN-SD698S are two high-performance microwave ovens designed to meet the needs of modern households. With cutting-edge technology and innovative features, these models offer a convenient way to heat, cook, and defrost a variety of foods.

At the heart of both models is the Inverter Technology, which provides consistent and precise cooking power throughout the microwave's cooking time. Unlike traditional microwaves that use a turn-on, turn-off method to regulate cooking power, the inverter system delivers a steady stream of energy. This allows for evenly cooked meals, reduces the chances of overcooking, and ensures delicate items like fish and vegetables retain their texture and flavor.

Both the NN-SD688S and NN-SD698S boast a spacious 1.2 cubic feet capacity, allowing users to easily accommodate large dishes and multiple servings. The sleek and modern stainless steel design ensures these microwaves fit seamlessly into any kitchen décor, while also being easy to clean and maintain.

The microwaves come equipped with an array of smart cooking features, including the Sensor Cook function. This technology automatically detects the steam released from food and adjusts cooking time and power levels accordingly. This feature takes the guesswork out of microwave cooking, ensuring perfectly cooked meals without constant monitoring.

Another standout feature is the Keep Warm function, which helps maintain food temperature without cooking it further. This can be especially useful when preparing multiple dishes or when meals need to be served at different times.

Both models also include a variety of pre-programmed cooking options, providing quick access to commonly prepared items. With one-touch settings for popcorn, pizza, and more, users can select their desired food type and let the microwave handle the rest.

In terms of safety, Panasonic has integrated a child safety lock to prevent accidental operation, which offers peace of mind for families with young children.

In summary, the Panasonic NN-SD688S and NN-SD698S microwaves reflect the brand's commitment to innovative cooking solutions. With features such as Inverter Technology, Sensor Cook, and a sleek design, these models are perfect for those seeking efficiency, convenience, and ease of use in their kitchen appliances. Whether reheating leftovers, cooking fresh meals, or defrosting ingredients, these microwaves offer versatility and reliability, making them essential tools for any modern kitchen.