Question about MSI Microstar KT6 Delta (MS-6590) Motherboard

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I have vfd b 380v invertor some body repalced his

I have delts,s vfd b 380v invertor some body repalced his mother board he is not taking 380v parametors .i think that mother board is set as 220v paramerters can i convert his programing into 380v without replacing mother board

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You will have to check your specs, some will and some won't.

Posted on Nov 20, 2009

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Dv4000 screen is on for a few seconds then goes black. Replaced screen balast and worked for 10 minutes, then went black again as before replacement. Should I replace the lcd screen?

No. The bulb is good. It could be the DC/DC invertor - that little curcuit board just beneath the in the LCD - or the video off the notebooks motherboard. - personal experiance points to that invertor

Feb 25, 2011 | HP Pavilion dv4000 Notebook

2 Answers

Hi can the acer 7720g graphics card be replaced

The whole mother board will have to be repalced, the video card is integrated into the mother board.
Service manual:

Please leave rating if it helps.

Feb 03, 2011 | Acer Aspire 7720 Notebook

1 Answer

We have a Telemecanique _ Schneider VSD Altivar 21 and no service manual how to operate it. 5.5kW/7.5 HP, 380V/480V ATV21 HU55N4- V1.9 IE04 Please advise where to optain one. Regards Dieter

We have a Telemecanique _ Schneider VSD Altivar 21 and no service manual. 5.5kW/7.5 HP, 380V/480V ATV21 Showing E-17 on VFD display, want to know the reason

Nov 18, 2010 | Heating & Cooling

2 Answers

Terminels of potenchometer

You better buy a multi turn potentiometer about 4,7 - 5,1 kOhm.

Connect its ends to "+10 V" and "ACM". The Slider connect to "AVI".

The multi turn pot can make small steps of adjustment.

Hope that it will help.

Jul 11, 2010 | Inverter Delta Vfd150b43a Ac Drive Vfd B ...

1 Answer

No picture just sound

its the invertor board/open back ull see about 10 little plugs going into invertor get number on board or get repaired only takes one to fail for no picture

Nov 17, 2009 | Westinghouse LTV-46w1 HD 46 in. LCD...

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My laptop is only 4 months old and my screen is very dark. I can hardly read the screen.

The connector that goes from the mother board or the invertor may be bad. Or the inverter board itself.
The wire is very delicate and goes from the motherboard and the invertor wire is also delicate. Repeated opens and closing of the screen can make the conections at the plug get weak and break.
Try connecting a LCD monitor alongside the laptop. Select the LCD and see if you get a video feed. If so then the wire connector and / or inverter is probably the sourse of your problems.

Sep 13, 2009 | Toshiba Computers & Internet

1 Answer

Hp pavilion dv1000 backlight invertor

Hi and welcome to FixYa,

Appreciate the direct "Ask Me"

The inverter would the the elongated PCB below the LCD screen.


They would be available here, here or here.

Good luck and Thank you for using FixYa. Happy New Year.

Jan 02, 2009 | HP Pavilion dv1000 Notebook

1 Answer

Insignia ns-lcd32


There is two reasons to have no display on your screen.
1.LCD panel itself is deffective.
2.Main board(mother board is Deffective)

How to recoganize the problem?

There is 5VDC going from main board to LCD invertor ( different model different pin so I am not able to tell which pin or Jack is)
Check while unit is ON mode it should read in between 3VDC to 5 VDC.If this volt is correct your LCD panel is Deffective.If no voltage appear in this pin Simply change Main board(mother board)

Dont forget to rate!!


Oct 21, 2008 | Televison & Video

1 Answer

Mvp overstove micro display dim any way to brighten up

It depends...

If the display is a VFD type, and if a new VFD tube is available as a separate part, then it can be replaced for $39.95 plus parts. We do that.

If it is an LCD type, the backlights can be replaced. We do that, too.

If it's a VFD type but the VFD tube is not available as a separate part, they can usually be brightened up a little.

You would need to remove the control panel assembly, then take the circuit board out of the frame.

(At our site, we have a video available showing how to remove a typical control panel assembly in under 5 minutes)

Then use a soft cloth (not a paper towel) with a non-ammonia cleaner and wipe off the front of the glass VFD and the rear of the display window in the plastic frame.

Feel free to contact me directly with your brand and model if you would like me to check into a new VFD tube for yours (if so equipped).

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller

Jul 31, 2008 | Maytag Microwave Ovens

1 Answer

Still having the problem with the LCD screen

two items come to mind

lcd panel sounds like it's unhappy

also, mother board, with video, may need some attention

Mar 18, 2008 | Dell Inspiron 6400 Notebook

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