Viking VMOC205SS, DMOC205SS Test Procedures Letter Component Test KEY Unit Test, Relay Test

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DMOC205SS

VMOC205SS

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

QKEY UNIT TEST

If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon cable is making good contact, verify that the door sensing switch (stop switch) operates properly; that is the contacts are closed when the door is closed and open when the door is open. If the door sensing switch (stop switch) is good, disconnect the flat ribbon cable that connects the key unit to the control unit and make sure the door sensing switch is closed (either close the door or short the door sensing switch connecter). Use the key unit matrix indicated on the control panel schematic and place a jumper wire between the pins that correspond to the STOP/CLEAR pad making momentary contact.

If the control unit responds by clearing with a beep the key unit is faulty and must be replaced. If the control unit does not respond, it is a faulty and must be replaced. If a specific pad does not respond, the above method may be used (after clearing the control unit) to determine if the control unit or key

pad is at fault.

G 5 G 6 G 7 G 8 G 9 G10 G11 G12

G 4

ADD-A-

DEFROST

SENSOR CONVEC CONVEC

CONVEC

HIGH MIX

MINUTE

COOK BROIL ROAST

BAKE

BROIL ROAST

G3

G2

G1

POPCORN PREHEAT CONVEC

1

2

3

4

 

5

100°F

150°F

275°F

300°F

325°F

 

 

 

REHEAT

SLOW

LOW MIX

6

7

8

9

 

0

COOK

BAKE

350°F

375°F

400°F

425°F

450°F

 

HELP

 

 

TIMER

POWER

CLOCK

START

 

STOP

 

 

 

LEVEL

TOUCH ON

CLEAR

 

 

 

 

 

KEY UNIT

RRELAY TEST

Remove the outer case and check voltage between Pin Nos. 7 and 9 of the 9- pin connector (A) on the control unit an A.C. voltmeter. The meter should indicate 120 volts, if not check the oven circuitry.

Shut-off, Cook and Heater Relay Test These relays are operated by D.C. voltage

Check voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation or convection cooking operation.

DC. voltage indicated ............. Defective relay.

DC. voltage not indicated ........ Check diode which is connected to the relay coil. If diode is good, control

unit is defective.

RELAY SYMBOL

OPERATIONAL VOLTAGE

CONNECTED COMPONENTS

 

 

 

RY1

Approx. 19.0V D.C.

Oven lamp / Turntable motor

RY2(COOK)

Approx. 18.0V D.C.

Power transformer

RY3(HEATER)

Approx. 18.0V D.C.

Heating element

 

 

 

RY4

Approx. 19.0V D.C.

Damper motor

 

 

 

RY5

Approx. 19.0V D.C.

Convection motor

 

 

 

RY6

Approx. 19.0V D.C.

Cooling fan motor

S

COMPU DEFROST TEST

 

 

 

 

 

 

 

 

(1) Place one cup of water in the center of the turntable tray in the oven cavity.

 

 

 

(2) Close the door, touch the "DEFROST" pad twice and touch the Number pad "5". And then touch the

 

 

 

"START" pad.

 

 

 

 

 

 

 

 

 

(3)

After 2 sec. Now the oven is in DEFROST cooking condition.

 

 

 

 

 

(4)

The oven will operate as follows.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WEIGHT

1ST STAGE

2ND STAGE

3RD STAGE

4TH STAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEVEL

TIME

LEVEL

TIME

LEVEL

TIME

LEVEL

TIME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.5lbs

70%

47sec.

0%

52sec.

50%

32sec.

30%

40sec.

 

(5) If improper operation is indicated, the control unit is probably defective and should be checked.

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Contents Table of Contents Models DMOC205SS VMOC205SSBefore Servicing DMOC205SS VMOC205SS When the testing is completed Before ServicingRequirements Microwave Measurement Procedure CanadaLeakage test with enclosure installed Leakage test without enclosureMicrowave Measurement Procedure USA Leakage testViking Range Corporation If provided, Vent Hood, Fan assembly, Cooling Fan MotorMicrowave Ovens DMOC205SS VMOC205SS Foreword Description SpecificationHigh MIX. Roast Oven Diagram VMOC205SSDescription of Operating Sequence Power Level P-0 to P-90 CookingOperation OFF ConditionSensor Cooking Condition Convection Cooking ConditionAutomatic MIX Cooking Condition Preheating ConditionCompu BROIL/ Compu ROAST/ Compu Bake Fire Sensing Feature Microwave ModeCompu Defrost Cooking Cooking SequenceSchematic Diagram Figure O-1. Oven Schematic-OFF ConditionFigure O-3. Oven Schematic-Automatic Mix Cooking Condition Description and Function of Components Microwave Cooking Troubleshooting GuideDamper OPEN-CLOSE Mechanism Damper OperationTest Procedure ProblemHigh Voltage Rectifier Test Power Transformer TestHigh Voltage Capacitor Test Monitor Switch Test Procedures Letter Component TestPrimary Interlock Switch and Third Door Switch Test Secondary Interlock System TestHeating Element Test Damper Switch TestChecking Temperature in the Convection Mode Thermistor TestTouch Control Panel Assembly Test Noise Filter TestRelay Test Test Procedures Letter Component Test KEY Unit TestWeight 1ST Stage 2ND Stage 3RD Stage 4TH Stage Level Time Compu Defrost TestChecking the initial sensor cooking condition Steps Occurrence Cause or CorrectionAH Sensor Test Water load cooking testTesting Method for AH Sensor AND/OR Control Unit Checking Control UnitThermistor Touch Control Panel AssemblyDescription of LSI LSIIXA103DRConvection motor driving signal Temperature measurement input Oven ThermistorDigit selection signal Cooling fan motor driving signalTOR Segment data signal Segment data signalsKey strobe signal Absolute Humidity Sensor Circuit Structure of Absolute Humidity SensorServicing Outer Case Removal Component Replacement and Adjustment ProcedurePower Transformer Removal Magnetron RemovalDamper Assembly Removal High Voltage Rectifier Assembly RemovalPositive Lock Connector NO-CASE Type Removal High Voltage Capacitor RemovalThermistor Removal Oven Lamp and Lamp Socket RemovalFAN Motor Removal Heating Element RemovalControl Panel Assembly and Control Unit Removal Power Supply Cord ReplacementControl Unit and KEY Unit After adjustment, check the following Door Replacement and AdjustmentAdjustment RemovalDoor Adjustment Door DisassemblyAfter adjustment, make sure of the following Leakage test Leakage Test with Enclosure Installed Microwave Measurement ProcedurePreparation For Testing RequirementFigure S-1. Pictorial Diagram SFigureControl Panel DIP Cabinet Parts Parts ListElectrical Parts Control Panel PartsMiscellaneous Door PartsScrews Nuts and Washers LX-NZ0029YBE0 Oven and Cabinet Parts Control Panel Parts Door Parts Packing and Accessories DMOC205SS VMOC205SS Copyright 2004 by Viking

VMOC205SS, DMOC205SS specifications

The Viking DMOC205SS and VMOC205SS are two state-of-the-art microwave ovens that redefine cooking convenience and efficiency. Designed for modern kitchens, these appliances come equipped with a range of features and technologies that enhance their usability and performance.

One of the most notable aspects of the Viking DMOC205SS and VMOC205SS is their powerful cooking capabilities. Both models utilize an advanced cooking system that ensures even heat distribution, resulting in perfectly cooked meals every time. With a robust wattage of up to 1,200 watts, these microwaves can quickly and efficiently prepare a wide variety of dishes.

The DMOC205SS features a spacious interior, offering 2.1 cubic feet of cooking space, making it ideal for larger families or those who frequently entertain guests. The VMOC205SS variant also shares a similar capacity but comes with additional features tailored for versatility. The interior design of both models includes a stainless steel finish that not only enhances durability but also adds a touch of elegance to any kitchen.

Functionality is at the forefront of the Viking DMOC205SS and VMOC205SS. Both models are equipped with multiple cooking modes, including microwave, convection, and grilling options. This multi-functional capability allows users to seamlessly switch between cooking methods, ensuring optimal results for various recipes. The intuitive control panel features easy-to-read buttons and a digital display, making it user-friendly for all cooking levels.

In terms of technology, these Viking microwaves incorporate sensor cooking, which automatically detects the moisture and temperature of food, adjusting cooking times accordingly. This feature not only prevents overcooking but also ensures consistently delicious results. The models also come with pre-programmed cooking settings for popular dishes, making meal preparation simpler and quicker.

Energy efficiency is another critical aspect of the Viking DMOC205SS and VMOC205SS. Both models are designed to minimize energy consumption while maximizing performance, which is beneficial for both the environment and the homeowner’s energy bills.

Safety features are embedded within the design of these microwaves. They include a child lock function to prevent accidental use, as well as a timer that ensures food is cooked for the precise amount of time needed.

In summary, the Viking DMOC205SS and VMOC205SS are exceptional microwave ovens that combine advanced technology, practical features, and stylish design. Their powerful cooking capabilities, user-friendly controls, and energy-efficient operation make them a perfect addition to any modern kitchen. These appliances empower users to explore a wide range of cooking possibilities, bringing convenience and quality to meal preparation.