Viking CDMOS200, CVMOS200 service manual Procedure Letter Component Test Noise Filter Test

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CDMOS200

DMOS200

VMOS200

CVMOS200

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

NNOISE FILTER TEST

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.Disconnect the leads to the primary of the power transformer.

5.Using an ohm-meter, check between the terminals as described in the following table:

NOISE FILTER UNIT

MONITOR

FUSE

NOISE SUPPRESSION COIL

LINE CROSS CAPACITOR 0.22uF/ AC 250V

LINE BYPASS CAPACITORLINE BYPASS CAPACITOR

0.0033uF/AC125V0.0033uF/AC125V

GRY

RED

MEASURING POINT INDICATION OF OHM-METER

Between N and H

Open Circuit

Between terminal N and GRY

Short Circuit

Between terminal H and RED

Short Circuit

If incorrect readings are obtained, replace the noise filter.

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.Run the oven and check all functions.

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Contents Models CDMOS200 VMOS200 Table of ContentsBefore Servicing CDMOS200 VMOS200 CVMOS200 Before Servicing When the testing is completedLeakage test with enclosure installed Microwave Measurement Procedure CanadaRequirements Leakage test without enclosureLeakage test Microwave Measurement Procedure USAViking Range Corporation If provided, Vent Hood, Fan assembly, Cooling Fan MotorMicrowave Ovens DMOS200 CDMOS200 VMOS200 CVMOS200 Foreword General Information SpecificationDescription Grounding InstructionsMove the Round Grounding Prong from this Plug Oven DiagramVMOS200 model shown Operation Power Level P-0 to P-90 CookingDescription of Operating Sequence OFF ConditionCooking 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 Test Procedure Test ProceduresProblem Procedure Letter Component Test Magnetron Assembly TestMicrowave Output Power Procedure Letter Component TestPower Transformer Test Cavity Temperature Fuse Test Procedure Letter Component Test High Voltage Rectifier TestMagnetron Temperature Fuse Test High Voltage Capacitor TestMonitor Switch Test Door Sensing SwitchSecondary Interlock System Test Secondary Interlock Relay RY2Before testing Touch Control Panel Assembly TestBlown Monitor Fuse Test KEY Unit Test Test ProceduresRelay Test Weight 1ST Stage 2ND Stage Level TimeCompu Defrost Test Steps Occurrence Cause or Correction Occurrence Cause or CorrectionAH Sensor Test Testing Method for AH Sensor and /OR Control UnitChecking the initial sensor cooking condition Water load cooking testProcedure Letter Component Test Checking Control Unit Measuring Point Indication of OHM-METER Procedure Letter Component Test Noise Filter TestTouch Control Panel Assembly LSIIXA098DR Key strobe signal Signal synchronized with commercial power source frequencySignal coming from touch key Signal similar to P17Internal clock oscillation frequency control input setting Power source voltage GND0VPin No AH sensor inputCommon data signal COM10 Segment data signalSEG COM7 OUTStructure of Absolute Humidity Sensor Absolute Humidity Sensor CircuitTouch Control Panel Servicing Other PrecautionsServicing Tools Outer Case Removal Component Replacement and Adjustment ProcedureRe-install Power Transformer RemovalHigh Voltage Rectifier and High Voltage Capacitor Removal Magnetron RemovalControl Panel Assembly Removal Positive Lock Connector NO-CASE Type RemovalOven Lamp and Lamp Socket Removal Turntable Motor RemovalRE-INSTALL AH Sensor ReplacementCooling FAN Motor Removal RemovalAfter adjustment, check the following Door ReplacementInstallation After any service, make sure of the followingSealer Film 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 Electric Parts Parts ListCabinet Parts Control Panel PartsMiscellaneous Door PartsSCREWS,NUTS and Washers 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.