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Inverter board How did you know it was the inverter board? I am pretty sure thats what it is and want to fix it... but I don't want to order the expensive part without some way of trouble shooting? Any ideas.

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My problem matched the description on here and on and from a seller on ebay. So I took a gamble and tried it and it worked. It seemed such a specific problem and matched so well I thought it was a pretty good chance of working.

The problem that I saw was that the TV would come on fine for a short time (a few seconds to a few minutes) then the screen would go black (no picture or even backlight glow). The sound would continue and the TV responds to the remote, but no picture. If turned off and back on the picture would reappear for a short time.

If I was wrong I thought I could probably resell the part, so I wasn't really risking the $150-$180, but something closer to the $50-$75 diagnostic fee that most of the repair places were quoting me. Good luck with your problem.

Posted on Aug 12, 2008


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Posted on Jan 02, 2017


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I have satellite m305d laptop. I think i burnt the inverter by touching two lines with screwdriver. It came a small spark and laptop turned off. Then i tried to power it up, it didnt. Is inverter that much...

First of all I hope you learned the lesson of making sure the power is unplugged and battery pulled before you start working on a laptop, the batter is easy to forget about.

If you have a volt meter you can check to see if power is making it out of the inverter. I have found that inverters can be pretty cheap and pretty expensive. If yours is cheap it might be worth just buying one to see if that fixes it. When you short things that could lead to domino affect of what gets burnt out so you could have a band inverter with a lot of other things broken as well.

You might be able to buy a non functioning m305d on ebay really cheap to pull the inverter/other parts from that to get yours up and running.

Oct 20, 2012 | Computers & Internet

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My Philips X58 Freevents laptop's screen has stopped lighting up, however I can just see that there are my programmes on the screen if I shine a torch onto it. Can you advise the fault and how best...

A faint and barely visible image on the screen indicates that the backlight(s) that illuminates the display isn't powering on. A device called an inverter board takes DC power from the laptop motherboard and converts it to AC power to power the screen backlight.
Before attempting anything below, be sure and remove the laptop battery and unplug the laptop
You need to take the screen apart and check to make sure that no cables are loose that are connected to the inverter board. If everything is secure, the next thing I would do is try to test the inverter board by hooking up an LCD from another laptop to the inverter and turning the laptop on to see if it lights up. If the other screen does light up, then the inverter board is likely good and your backlight needs to be replaced. Backlight replacement, unfortunately, can be very tricky for even an experienced technician, and many will opt to just replace the entire screen.
If you can't test the inverter board, then it might be worth it to order one and see if installing it fixes the problem.
Youtube is a great place to check for instructional videos on laptop repair, such as this one:
Finally, if you can't or don't want to repair the display problem, then you can always hook an external monitor or a television up to the video port and use your laptop that way.

Good luck!

Sep 24, 2011 | Computers & Internet

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On my Acer AL1916W monitor the screen comes on for a few seconds then goes off but the power light is still green.


That is often an inverter failure. Try turning off the room light, and point a flashlight sticking to the dark screen. If you can see a very faint picture, then the inverter has failed.
Before replacing the inverter, the PSU must also be tested. If the PSU does not supply power to inverter, then the PSU and not the inverter is the part to be tested.

If the screen is not dark, but there is backlight and no picture, then the problem is not the inverter. In that case check the source and the connection cable. If the cable is OK, then it is usually the main controller board inside the monitor. Once again the part must be tested.



Mar 10, 2011 | Acer AL1916W 19" LCD Monitor

1 Answer

I have a Polaroid 42" TLX-04244B. When turning the power on the polaroid logo comes on for a sec. then screen goes black with the blue power LED staying solid. Im pretty sure the power suply board isnt...

The Inverter is trying to produce the high voltage to light the backlight. It looks like it cannot hold the charge to maintain the high voltage level in order for it to stay on - you get a momentary display at initial power-up thus see the logo. Replace the Inverter board.

Sep 08, 2010 | Polaroid Televison & Video

2 Answers

I changed my macbook screen, and the backlight now will not work. Everything else works fine, just no light. My real question is what voltage should be coming from the inverter board. I read no AC or DC...

Apple doesn't provide voltage information for the Inverter Board.
If you are getting external video then check to see if there is a dim (un-backlit) image on the display to ensure it is a backlight problem. If so then the chances are good you have a failed inverter board.

Jan 21, 2009 | Apple MacBook Air

1 Answer

Audiovox fpe2705 inverter board replacement

You need to verify first that you do have 24vdc feeding the inverter boards, if you do have 24vdc then we can be sure it is the inverter boards. The inverter board will have very small surface mounted fuses, check for that also.

Dec 27, 2008 | Audiovox FPE3206 32 in. LCD Television

2 Answers

ProView PL926WBi

bad capacitors on the board, replace these and the inverters should get there power.

Dec 01, 2008 | Proview PL926WBi 19" LCD Monitor

1 Answer


yes, but i don´t know if a dealer will sale it to u, if u have one it´s pretty easy to replace it. make sure that u mark the cables before u disconnect them, and frist of all unpluged the batteries.
anyway normaly the board will cost almost as much as a new ups.
good luck

Jun 21, 2008 | Powerware 9120 UPS System

2 Answers

Replacing Inverter Board

I did some poking around and only found a few places that sold inverter boards for this monitor. Ebay has one that sells for about $80: I wasn't able to find any specific instructions posted, however, taking a typical LCD panel apart and replacing the board shouldn't be too difficult. The only hard part is not getting shocked, which is why this is not a job for the typical user. Anyway to disassemble the typical LCD you remove the pedestal from the back of the LCD then remove the screws around the back of the LCD, remove the back and look for the inverter board. Typically it is covered with a metal shield; again the hard part is knowing how to correctly handle the parts. Considering you can buy a new 17" LCD for $120 to $150 (and has a 1 year warranty) you might want to consider investing in a new monitor instead. If you have any other questions let us know, otherwise please don?t forget to rate this posting.

Feb 03, 2007 | Gateway FPD1760 17" LCD Monitor

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