LCD TV maintenance skills assessment training device

 

"Home Approval Audio and Video Rep--r Skills Tr--ning Device" is based on the "Household Electronic Product M--ntenance Works" vocational skills tr--ning and appr--sal equipment technology specifications based on the Ministry of Labor and Social Security of the People's Republic of China. Products that require research and development are suitable for tr--ning and teaching in high vocational colleges and vocational schools to apply electronic technology, electronic appliances application and m--ntenance and other professional TV principles and m--ntenance, household electronic product principles and m--ntenance.

 

2. Technical performance

 

1. Input power supply: single -phase three -line system AC220V ± 10% 50Hz 50Hz

 

2. Working environment: temperature -10 ℃ ～+40 ℃ relative humidity <85%(25 ℃)

 

3. The capacity of the whole machine: <300VA

 

4. Safety protection: action current ≤30mA, action time ≤0.1S

 

5. Dimensions: 160cm × 80cm × 135.5cm

 

Third, system composition

 

1. Control and AC power part

 

(1) Provide single -phase AC power supply and direct short -circuit automatic protection device. Control the working power of the tr--ning desk.

 

(2) Provide 1 ~ 220V socket to provide work power for external instruments.

 

2. DC power supply part

 

(1) Switching power supply:+5V,+24V, 12V.

 

(2) Color TV signal generator: Using large -scale programming logic controllers and high -definition color signal sources with pixel -grade algorithm. It has a clear image and accurate timing (high graphics, sampling rate, accurate color, and graphic selection of 16 channel TV signals: divided into 16 forms such as round, dot, grid, black and white grid, color, monochrome, etc., you can directly pass the button directly. Selected (output signal: video, voice (medium frequency 6.5m), RF output interface) signal system: PAL-D/K.

1. Scope and principle of application:

MBBR was developed and applied in the mid -1990s. It also has the advantages of traditional fluidized beds and biological contact oxidation methods. It is a new and efficient sewage treatment method. So far, MBBR has been applied abroad for life pollution

Small tests, middle trials and productive experiments of water treatment, industrial wastewater, and productive experiments have achieved good results.

Among them, the CAPTOR technology in the United States and the German Linport process are currently two more mature porous suspended suspended body systems. Add polyurethane foam blocks to a complete hybrid reactor for microorganisms to grow.

It is used to deal with urban domestic sewage treatment and study its removal and nitrification of BOD.

The results show that nitrifying bacteria prioritize the growth and grow on the carrier, and the nitrification activity reaches 0.33 mgn/H • block carrier (the volume of the carrier is 8cm3/block). In 4H, the BOD can be completely removed, and the nitrification effect will occur. Completed within 10h. In the past L0 years, mobile bed biofilm technology has developed in Norway. Now more than 100 sewage treatment plants based on this technology have been put into use or under construction in L7 countries. They are m--nly used to remove municipalities. Organic substances and ammonia nitrogen in sewage or industrial wastewater.

2. M--n technical indicators and parameters:

1. Environmental temperature: 0.5 ～ 40 ℃

2. Treatment of water: 20 L/H

3. Total size of the device: 1600 mm × 400 mm × 1400mm,

4. Work power: AC220V ± 10%, 50Hz, single -phase three -line system, 500W power, safety protection: ground protection, leakage protection, overcurrent protection