CDMOS200

DMOS200

VMOS200

CVMOS200

CK = Check / RE = Replace

TEST PROCEDURE

POSSIBLE CAUSE

AND

DEFECTIVE PARTS

CONDITION

PROBLEM

 

 

Home fuse or circuit breaker blows

 

when power cord is plugged into

 

wall receptacle

 

Monitor fuse blows when power

OFF

cord is plugged into wall receptacle.

All letters and indicators do not

CONDITION

 

appear in display when power cord

 

is first plugged into wall outlet.

 

Display does not operate properly

 

when STOP/CLEAR key is

 

touched. (Buzzer should sound and

 

":" or time of day should appear in

 

display.)

 

Oven lamp does not light when door

 

is opened.

 

Oven lamp does not go out when

 

door is closed.

 

Oven lamp lights but fan motor

 

and turntable motor do not operate.

 

Oven does not go into cook cycle

 

when START pad is touched

 

Oven seems to be operating but

 

little or no heat is produced in oven

 

load. (Food incompletely cooked or

 

not cooked at all at end of cook

 

cycle.)

COOKING

Oven goes into a cook cycle but

CONDITION

extremely uneven heating is

 

 

produced in oven load (food).

 

Oven does not cook properly when

 

programmed for Cooking Power 5

 

mode. (Operates properly on

 

Cooking Power 10 (HIGH) mode.)

 

Oven goes into COMPU DEFROST

 

but food is not defrosted well.

 

AH sensor does not end during

SENSOR

sensor cooking condition. (Oven

does not shut off after a cup of water

COOKING

is boiling by sensor cooking)

CONDITION

 

Oven stops at 16 sec. after starting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RE

RE

A

B

C

D

E

E

F

F

G

H

RE

RE

CK

I

CKCKCK

J

K

L

M

N

 

SHORT IN POWER CORD

SHORT OR OPENED WIRING

MAGNETRON

POWER TRANSFORMER

H.V. RECTIFIER ASSEMBLY

HIGH VOLTAGE CAPACITOR

CAVITY TEMPERATURE FUSE

MAGNETRON TEMPERATURE FUSE

PRIMARY OR DOOR SENSING SWITCH

SECONDARY INTERLOCK SYSTEM

MONITOR SWITCH

MONITOR FUSE

OVEN LAMP OR SOCKET

COOLING FAN MOTOR

TURNTABLE MOTOR

TOUCH CONTROL PANEL

WRONG OPERATION

LOW VOLTAGE

DIRTY OVEN CAVITY

KEY UNIT

RELAY (RY1)

COMPU DEFROST

FOIL PATTERN ON PWB.

NOISE FILTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

AMAGNETRON ASSEMBLY 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.

13

Page 15
Image 15
Viking CVMOS200, DMOS200 Test Procedures, Problem, Ckckck, Procedure Letter Component Test Magnetron Assembly Test

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.