Viking CVMOS200, CDMOS200 AH Sensor Test, Checking the initial sensor cooking condition

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CDMOS200

DMOS200

VMOS200

CVMOS200

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

N

AH SENSOR TEST

Checking the initial sensor cooking condition

Warning: The oven should be fully assembled before following procedure.

1)The oven should be plugged in at least two minutes before sensor cooking.

2)Room temperature should not exceed 95oF(35oC).

3)The unit should not be installed in any area where heat and steam are generated. The unit should not be installed for example, next to conventional surface unit. Refer to the "INSTALLATION INSTRUCTIONS" of the operational manual.

(4)Exhaust vents are provided on the back of the unit for proper cooling and air flow in the cavity. To permit adequate ventilation, be sure to install so as not to block these vents. There should be some space for air circulation.

(5)Be sure the exterior of the cooking container and the interior of the oven are dry. Wipe off any moisture with dry cloth or paper towel.

(6)The Sensor works with food at normal storage temperature. For example, chicken pieces would be at refrigerator temperature and canned soup at room temperature.

(7)Avoid using aerosol sprays or cleaning solvents near the oven while using Sensor settings. The sensor will detect the vapor given of by the spray and turn off before food is properly cooked.

(8)If the sensor has not detected the vapor of the food, ERROR will apear and the oven will shut off.

Water load cooking test

Warning: The oven should be fully assembled before following procedure.

Make sure the oven the oven has been plugged in at least two minutes before checking sensor cook operation . the cabinet should be installed and screws tightened.

(1)The oven should be plugged in at least two minutes before sensor cooking

(2)Fill approximately 200 milliliters (7.2 oz) of tap water in 1000 milliliters measuring cup.

(3)Place the container on the center of tray in the oven cavity.

(4)Close the door.

(5)Touch the Timer/Clock pad once, the Power Level pad twice, the Start pad once and the number pad once. Now, the oven is in the sensor cooking condition and "TEST", "SENSOR" and "COOK" will appear in the display.

(6)The oven will operate for the first 16 seconds, without generating microwave energy.

NOTE: ERROR will appear if the door is opened or STOP/CLEAR pad is touched during the first stage of sensor cooking.

(7)After approximately 16 seconds, microwave energy is produced.

If ERROR is displayed, replace the AH sensor or check the control unit, refer to explaination below. If the oven stops after 5 minutes and ERROR is displayed, check the parts except for the AH sensor.

TESTING METHOD FOR AH SENSOR AND /OR CONTROL UNIT

To determine if the sensor is defective, the simplest method is to replace it with a new replacement sensor.

(1)Disconnect the power supply cord, and then remove outer case.

(2)Open the door and block it open.

(3)Discharge high voltage capacitor.

(4)Remove the AH sensor. (5)Install the new AH sensor.

(6)Reconnect all leads removed from components during testing. (7)Re-install the outer case (cabinet)

(8) Reconnect the power supply cord after the outer case is installed.

(9)Reconnect the oven to the power supply and check the sensor cook operation as follows: 9-1. Fill approximately 200 milliliters (7.2 oz) of tap water in a 1000 milliliter measuring cup.

9-2. Place the container on the center of tray in the oven cavity.

9-3. Close the door.

9-4. Touch the Timer/Clock pad once, the Power Level pad once and the number pad once.

9-5. The control panel is in automatic sensor operation.

9-6. The display will start to count down the remaining cooking time, and the oven will turn off automatically after the water is boiling (bubbling).

If new sensor does not operate properly, the problem is with the control unit, and refer to explanation below.

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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.
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