XMDS32LED LCD TV for lamp beads (uploading lamp beads photos and data)! - appliance repair - Huaqiang Electronic Network

0603 white LED chip, SMD LED lamp beads, 0603 patch LED

Excellent micro LED manufacturer, 0603 white light LED SMD patch

I recently repaired an XMDS32 assembled LCD TV that would boot up but show a very dark image, then go completely black. However, the image was visible when using a flashlight, and the sound was working normally. Based on this, I concluded it was a backlight issue. After checking the backlight output voltage, it started at 50V and gradually dropped to 20V. But even when the voltage was between 50V and 40V, the backlight wasn’t bright. This led me to suspect a faulty LED chip. I decided to dismantle the screen and power it on. I noticed only a few LEDs were dimly lit, and they only turned on briefly when powered. The power supply for the light strip was normal. I opened a few LED covers and measured the bulbs, which had significantly failed. Since the TV didn't have any backlight protection, the remaining LEDs were still being used, causing almost all of them to burn out. There were 10 light strips, and each had different numbers of failed LEDs. I replaced the original 30 LEDs with ones from a Skyworth 42-inch LCD TV. After a long-term power test, the brightness of the new LEDs was normal. I cleaned the LEDs with alcohol, applied a small amount of glue to the plastic covers for about three seconds, and reinstalled the screen. The final result was a perfectly working display. To ensure future recovery, I used the RT809F programmer to copy the original data online for later use. Attached are the photos and the backup files.


XMDS CT32A002369 data V59 motherboard memory W25Q32.part1.rar
XMDS CT32A002369 data V59 motherboard memory W25Q32.part2.rar