Electronic scale crystal oscillator 3.2*2.5mm 3225 16M (16.000MHZ) 12PF 10PPM 20PPM 30PPM

Brand AVX TPSE226M035R0125 Low impedance tantalum capacitor AVX 22

0603 Blu-ray factory direct sales

Huaqiang Square crystal original spot stock

A customer came in with a TV that had no sound and no image. When the power was turned on, there was a backlight but no display. The screen showed nothing, just black. I connected the cover directly to the logic board and started testing. The 12V supply was normal, as were the 3.3V and 1.8V rails. However, VGH, VDD, VGL, COM FB, and HVDD all read 0V. I noticed the boost chip was getting hot, so I immediately suspected the logic board was faulty. I bought a replacement from TB and installed it, but the result was still the same—no image, just a blank screen. I felt really confused, like I had hit a dead end. It was frustrating, and I even wondered if I had bad luck or if I had missed something obvious. I took a deep breath and decided to check again. I realized the LCD panel might not be properly connected to the two printed boards. There were a few components that could have been causing the issue. Maybe there was an unexpected problem I hadn’t considered. I went through the process step by step, disconnecting the left cable, and saw that half the screen was working while the other half was white. Then I found a shorted capacitor. After removing it, the screen worked perfectly. It was a relief to finally see a clear picture after all that troubleshooting. This experience reminded me how important it is to stay calm and methodical when dealing with complex electronics.