Viking CVMOS200, CDMOS200 service manual Sensor Cooking Condition, Cooking Sequence

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SENSOR COOKING CONDITION

Using the SENSOR function, food is cooked without figuring time, power level or quantity. When the oven senses enough steam from the food, it relays the information to its microprocessor which will calculate the remaining cooking time and power level needed for best results. When the food is cooked, water vapor is developed. the sensor "senses" the vapor and its resistance increase gradually. When the resistance reaches the value set according to the menu, supplementary cooking is started.

The time of supplementary cooking is determined by experi- ment with each food category and inputted into the LSI. An example of how sensor works: (Potatoes)

1.Potatoes at room temperature. Vapor is emitted very slowly.

2.Heat Potatoes. Moisture and humidity is emitted very rapidly. You can smell the aroma as it cooks.

3.Sensor detects moisture and humidity and calculates cooking time and variable power.

Cooking Sequence.

1. Touch one of the SENSOR pads.

NOTE: The oven should not be operated on sensor immediately after plugging in the unit. Wait two minutes before cooking on SENSOR.

CDMOS200

DMOS200

VMOS200

CVMOS200

2.The coil of shut-off relay (RY-1) is energized, the turntable motor are turned on, but the power transformer is not turned on.

3.After about 16 seconds, the cook relay (RY-2) is energized. The power transformer is turned on, microwave energy is produced and first stage is started. The 16 seconds is the cooling time required to remove any vapor from the oven cavity and sensor.

NOTE: During this first stage, do not open the door or touch STOP/CLEAR pad.

4.When the sensor detects the vapor emitted from the food, the display switches over to the remaining cooking time and the timer counts down to zero.

At this time, the door may be opened to stir, turn or season food.

5.When the timer reaches zero, an audible signal sounds. The shut-off relay and cook relay are de-energized and the power transformer, oven lamp, etc. are turned off.

6.Opening the door or touching the STOP/CLEAR pad, the time of the day will reappear on the display and the oven will revert to an OFF condition. When the timer reaches zero, an audible signal sounds.

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Contents Models CDMOS200 VMOS200 Table of ContentsBefore Servicing CDMOS200 VMOS200 CVMOS200 Before Servicing When the testing is completedLeakage test without enclosure Microwave Measurement Procedure CanadaLeakage test with enclosure installed RequirementsLeakage test Microwave Measurement Procedure USAMicrowave Ovens DMOS200 CDMOS200 VMOS200 CVMOS200 Foreword If provided, Vent Hood, Fan assembly, Cooling Fan MotorViking Range Corporation Grounding Instructions SpecificationGeneral Information DescriptionVMOS200 model shown Oven DiagramMove the Round Grounding Prong from this Plug OFF Condition Power Level P-0 to P-90 CookingOperation Description of Operating SequenceCooking Sequence Sensor Cooking ConditionImar Y IT C H C O Ndar Y S W IT C H Schematic Door Closed Clock Appears on DisplayDescription and Function of Components Troubleshooting Guide Procedure Letter Component Test Magnetron Assembly Test Test ProceduresTest Procedure ProblemPower Transformer Test Procedure Letter Component TestMicrowave Output Power High Voltage Capacitor Test Procedure Letter Component Test High Voltage Rectifier TestCavity Temperature Fuse Test Magnetron Temperature Fuse TestSecondary Interlock Relay RY2 Door Sensing SwitchMonitor Switch Test Secondary Interlock System TestBlown Monitor Fuse Test Touch Control Panel Assembly TestBefore testing KEY Unit Test Test ProceduresCompu Defrost Test Weight 1ST Stage 2ND Stage Level TimeRelay Test Steps Occurrence Cause or Correction Occurrence Cause or CorrectionWater load cooking test Testing Method for AH Sensor and /OR Control UnitAH Sensor Test Checking the initial sensor cooking conditionProcedure Letter Component Test Checking Control Unit Measuring Point Indication of OHM-METER Procedure Letter Component Test Noise Filter TestTouch Control Panel Assembly LSIIXA098DR Signal similar to P17 Signal synchronized with commercial power source frequencyKey strobe signal Signal coming from touch keyAH sensor input Power source voltage GND0VInternal clock oscillation frequency control input setting Pin NoCOM7 OUT Segment data signalCommon data signal COM10 SEGStructure of Absolute Humidity Sensor Absolute Humidity Sensor CircuitServicing Tools Other PrecautionsTouch Control Panel Servicing Outer Case Removal Component Replacement and Adjustment ProcedureMagnetron Removal Power Transformer RemovalRe-install High Voltage Rectifier and High Voltage Capacitor RemovalTurntable Motor Removal Positive Lock Connector NO-CASE Type RemovalControl Panel Assembly Removal Oven Lamp and Lamp Socket RemovalRemoval AH Sensor ReplacementRE-INSTALL Cooling FAN Motor RemovalAfter adjustment, check the following Door ReplacementSealer Film After any service, make sure of the followingInstallation HIG H Voltag E C Ompone DiagramFigure S-2 Power Unit Circuit Figure S-3 CPUUnit CircuitFigure S-5 Printed Wiring Board of Power Unit Control Panel Parts Parts ListElectric Parts Cabinet PartsSCREWS,NUTS and Washers Door PartsMiscellaneous Oven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Packing and Accessories Copyright 2002 by Viking
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CVMOS200, CDMOS200, DMOS200, VMOS200 specifications

The Viking VMOS200, DMOS200, CDMOS200, and CVMOS200 are advanced products designed for telecommunications and power management applications. Each model showcases unique features and technologies that make them stand out in their respective fields.

The VMOS200 is built on the vertical MOSFET technology, allowing for optimized performance in high-power applications. This device excels in switching capabilities and minimizing conduction losses, leading to improved efficiency. The VMOS200 is ideal for use in power amplifiers and high-frequency applications, where reliable performance and thermal stability are crucial. Its rugged design ensures that it can withstand harsh environments, making it a preferred choice for industrial and aerospace applications.

Next, the DMOS200 employs a double-diffused MOSFET technology, which enhances its thermal performance and power handling capabilities. This model is particularly effective in low-voltage applications where efficiency is paramount. The DMOS200 features a low on-resistance characteristic, allowing for reduced energy loss during operation. Its fast switching speed enables high-frequency operation, making it suitable for RF amplifiers and motor drives.

The CDMOS200 introduces a charge-balanced design, optimizing the allocation of charge carriers within the device to minimize heat generation and improve efficiency. This model is tailored for demanding applications in communications where signal integrity and power efficiency are critical. With its high breakdown voltage and robust construction, the CDMOS200 can handle more demanding operational conditions, making it popular in cellular and satellite communication systems.

Lastly, the CVMOS200 combines the advantages of vertical and charge-balanced technologies, offering a versatile solution for a broad range of applications. This hybrid design provides high efficiency, exceptional reliability, and enhanced thermal management. The CVMOS200 is particularly well-suited for switching power supplies and audio amplification. Its compact footprint allows for integration into space-constrained designs while maintaining high performance.

In summary, the Viking series of devices—VMOS200, DMOS200, CDMOS200, and CVMOS200—offer a range of features, technologies, and characteristics tailored to meet the demands of modern power electronics and telecommunications. With their robust designs, high efficiency, and adaptability to various applications, these devices are integral components for engineers and designers looking to create cutting-edge technological solutions.