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Repair an XMDS32 assembled LCD TV to boot to see a very dark image and then black screen, you can see the image with a flashlight and the sound is normal, the judgment should be a backlight problem!

Disassemble the backlight output voltage of 50V and then slowly drop to 20V, but the backlight is not bright when 50V to 40V! Judging as a lamp bead!

Decisively dismantle the screen, open the screen and power on to see that there are only a few light bulbs with weak light, and only light up when power is on, the power supply on the measuring light strip is normal; open a few light bead covers to measure the light bulb has been significantly broken, This TV has no backlight protection, and the lamp bead can be watched with brightness TV, causing almost all the lamp beads to break! Because the hands are not the same 10 light strips have to change the lamp beads, find Skyworth 42 LCD TV disassemble light strips to remove the lamp beads to replace the original machine 30 lamp beads, long-term power test machine lamp bead brightness normal! Then clean the lamp beads with alcohol, then glue the plastic cover on the lamp beads for three seconds, and install the screen test machine perfectly!

Finally, use the RT809F programmer to copy the original data online for later use! Attach photos and data!


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