Early this morning, my friend called me and said, "I accidentally broke my TV last night." He asked me to help fix it, so I agreed. At 9 a.m., he brought a (CURIS) 32-inch LCD TV to my store, model: LCD3235A, made in China. I turned it on for testing, but the screen didn’t light up. There were slight signs of impact on the screen. Since we are good friends, I decided to take the TV. I told him to come pick it up tomorrow, and he left. Then I quickly removed the back cover and carefully examined the internal structure and components. I tested the power board offline and found that the high-voltage power supply board was damaged. Also, the backlight was partially lit—three of the tubes weren’t working at all. I realized I needed to replace the backlight. So I came up with a full repair plan.
The original TV used EEFL lamps, driven by a high-voltage transformer in parallel. The power supply also used a high-voltage integrated board. Since I didn’t have the original parts, I decided to do a major overhaul: replacing the EEFL tubes with CCFL tubes and using multiple high-voltage transformers to drive them. This required adding a high-voltage driver board, which effectively gave the backlight system a new life.
Interestingly, I had a spare screen in stock from a previous disassembly. That meant all the necessary parts were available, and everything was ready except for the time. This project involved quite a bit of work. Below, I’ve included some photos to document the process and share it with my colleagues. Replacing the screen required both confidence and care. Fortunately, I made no mistakes in any of the steps. Thank you! !
heat shrinkable cap
heat shrinkable cap,Heat-shrink tube,Heat shrinkable tubing,thermal contraction pipe,Shrink tube
Mianyang Dongyao New Material Co. , https://www.mydyxc.com