Connected to a refurbished machine: A Konka LCD TV model LED47IS11PD came in, and the customer was worried the screen was broken. I asked how they knew it was broken. They said, "There's a vertical line on the full screen, but everything else works fine!" Then they plugged it into the test machine and it didn't work.
The customer said, "Let other technicians check it out! They said the screen is broken! Let you see if you can fix it!" "Row!" Then I took a look. I used the multimeter to test the power chip N804 and found that its output pin had no voltage! Then I checked the power inductor and was so shocked that I almost dropped it from the board! I turned back and told the customer: "Go home! Take your money and catch a flight tomorrow!"
After the customer left, I immediately went to the garbage dump and found the inductor. After re-soldering it, the vertical line disappeared! Who says the screen was broken? I promised to save it!
The final transaction price was just a bottle of R600 (about 600 yuan).
This case shows how important it is not to jump to conclusions. Sometimes all it takes is a little patience and attention to detail to save a seemingly broken device. It’s also a reminder that some repairs are more about checking the basics than replacing parts unnecessarily. I’m glad I didn’t give up and managed to save this TV for the customer. It was a good learning experience and a satisfying result!
Fire Retarding FRP Support Cable Tray
Fire Retarding FRP Support Cable Tray is a type of cable tray made from Fiber Reinforced Polymer (FRP) material that is designed to resist fire and prevent the spread of flames in the event of a fire. This type of cable tray is commonly used in industrial and commercial settings where fire safety is a concern.
FRP Support Cable Tray is made from a combination of fiberglass and resin, which makes it lightweight and strong. It is also resistant to corrosion, chemicals, and UV radiation, making it ideal for use in harsh environments. The fire-retarding properties of FRP Support Cable Tray are achieved by adding fire-retardant additives to the resin during the manufacturing process.
The design of FRP Support Cable Tray is similar to that of traditional cable trays, with a series of rungs or channels that support and protect cables. The rungs are spaced apart to allow for ventilation and prevent the buildup of heat, which can increase the risk of fire. The tray can be mounted on walls, ceilings, or floors, and can be customized to fit the specific needs of a particular installation.
One of the key benefits of FRP Support Cable Tray is its fire-retarding properties. When exposed to fire, the tray will not ignite or emit toxic fumes, which can help to prevent the spread of flames and reduce the risk of injury or damage to property. This makes it an ideal choice for use in areas where fire safety is critical, such as chemical plants, oil refineries, and power stations.
In addition to its fire-retarding properties, FRP Support Cable Tray is also easy to install and maintain. It can be cut to size on-site using standard tools, and can be installed using a variety of mounting options. The tray is also easy to clean and does not require any special maintenance or cleaning procedures.
Overall, Fire Retarding FRP Support Cable Tray is a reliable and effective solution for protecting cables and preventing the spread of fire in industrial and commercial settings. Its lightweight, corrosion-resistant, and fire-retarding properties make it an ideal choice for a wide range of applications, and its ease of installation and maintenance make it a cost-effective solution for businesses and organizations of all sizes.
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