power the LCD board with a computer ATX power???

Mar 07, 2007 3 Replies

I have a lcd monitor with bad internal power supply. The power supply is responsible for 12V to the video board. And then the video board gives 12V to the inveter.



The voltage on the power board is not very stable, it jumps around



11.56- 12.45V and causes the LCD to shut down and restart every 0.5 second.

Question: Can i use a computer PC ATX power supply 12V to power the video board and turn on the LCD and verify the condition of video board ?



Thanks!



You could try hooking the inverter up to the computer psu without any problems so long you get the polarity correct but more than likely your problem is with the inverter itself. Inverters seem to be the most common failure in LCD displays.

You can get a cheap replacement for the original inverter by buying one of those PC case mod light sets that use 2 CCFL lamps. They are usually about $15 and a cheap source for an inverter and CCFL lamps.

- Mike

A quick search on google turned up this..

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That should get you started if you need a new inverter or ccfl lamps depending on the size of your monitor..

- Mike

Sure, but that voltage range you're seeing shouldn't be a problem. Sounds like there's another fault in the monitor causing the load to fluctuate.

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