Re: VX910 Backlight Inverter Issue

I received the new power supply this afternoon from Hong Kong. It is a used board which looked like it had gotten hot around the T1 inverter transformer and none of the caps appeared to have been been replaced, some were even rated at 85°C. I installed the board into the monitor for a comparison and the backlights came on and remained, now I know that the CCFL lamps are ok.

For the next test, I installed the good T2 transformer from my original board into the T1 socket where the shorted transformer had been. I left the T2 socket...

Re: VX910 Backlight Inverter Issue

I have searched for a replacement transformer, but the closest I can find to the required SPI 8TJ00029 is an SPI 8T00013 at [URL="http://lcdparts.net/TransformerDetail3D.aspx?ProductID=3283"]http://lcdparts.net/TransformerDetail3D.aspx?ProductID=3283[/URL], unfortunately the pin schematic is different. I'll keep an eye out for the correct model, but I may end up giving in for now and buying a cheap board off of eBay so I can at least use the monitor.

How close do the resistance values need to be if I replace both transformers...

Re: VX910 Backlight Inverter Issue

Thank you Retiredcaps! I failed to mention in my first post that at least two of the electrolytic caps were bulged.

I will look for a replacement transformer to see if that fixes the problem.

This is my first post on this forum, so here it goes. I have a VX910 monitor that has an issue with the first backlight inverter circuit. When connected via DVI and turned on, the screen lights up with a good picture for ~2 seconds and then goes black. I have verified using a flashlight on the screen that the logic board is working. The power light remains a steady green, and the screen does not reappear if the monitor is left on.

After reading several threads regarding this issue with the VX910, I proceeded to replace all of the electrolytic capacitors (including the large 400V...

Re: New Members - please post your introductions here

Hello,

I am a Manufacturing Engineer with a moderate self-taught background in electronics. I found this forum while searching for information on repairing my VX910 monitor. After several days of reviewing this site, I am impressed with the knowledge shown by many of the frequent users. I am confident that their advice will help determine the issue with my monitor.