I suspected that the PSU capacitors had failed and as long as the TV would attempt to power up there was unlikely to be damage to the semiconductors, IC's and transistors so it would be worthwhile trying to repair it by replacing them. A simple repair that would take just a couple of hours to complete would avoid all the plastic and metal being recycled, a significant proportion of which, particularly the plastic would end up in landfill or being washed out to sea. Click here to find out more about this project.
I recently repaired a neighbours 32 inch LCD TV which had started to behave erratically. It was difficult to get it to power on and when powered on it would switch off after 10 minutes.
I suspected that the PSU capacitors had failed and as long as the TV would attempt to power up there was unlikely to be damage to the semiconductors, IC's and transistors so it would be worthwhile trying to repair it by replacing them. A simple repair that would take just a couple of hours to complete would avoid all the plastic and metal being recycled, a significant proportion of which, particularly the plastic would end up in landfill or being washed out to sea. Click here to find out more about this project.
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I recently set up the propagator ready to bring on the seedlings for this year. Some of the seedlings such as Begonia and Lobelia require light to germinate. In Scotland around December and January light is in pretty short supply so you have to resort to artificial means to get an early start. This is the set up i have used for a number of years. The propagator is set up, covered with insulating silver bubbly film cut to the shape of the propagator cover. Holes are cut in the film to allow LED lights to be directed into the propagator. I have covered the development of these in previous articles. The silvered bubble film provides two functions, insulate the propagator but primarily to trap and bounce the light around inside to maximise the illumination of the seeds to help germination. Using the LED lights and silver film means that the LED lights can be used consuming less power for the same amount of light output compared to a standard grow lamp which has to be kept a safe distance from the seedlings to avoid heat damage. This photograph shows the progress of the Begonia seedlings so far. These were sown on the 10th January 2018 and both trays have shown good progress. The first germination was seen around the 18th January and since then the seedlings have developed well. |
AuthorAllan Faulds is an Electronic Design Engineer who develops Hardware and Software on a professional basis. He has a strong interest in applying his design and development skills to his areas of interest such as bicycle lighting and plant growing and greenhouse and garden control technology. Archives
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