Question about ViewSonic N2750w 27 in. HD-Ready LCD Television

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I need a Main board for a viewsonic N2750W - ViewSonic N2750w 27 in. HD-Ready LCD Television

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Hi. can you list the symptoms so the people here can confirm that the main board is the problem?
do you have the back off of the tv? is it a VS10576-1M?
with a bit more info it may be possible to make less costly repairs .


Posted on Jul 01, 2009


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Hi there,
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Posted on Jan 02, 2017


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I do not have my remote for my viewsonic N2750w. And i cannot find a universal remote that works. Can you tell me one that will work?


You could order a substitute remote ( as original is not available any longer ) from :-

If you want to buy universal remote, be advised that for Viewsonic it would not be too successful and moreover, the one which is compatible ( Harmony ) would be expensive.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Jan 10, 2011 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

Audio OK no video

Ur LCD inverter board is dead.Replaced this inverter board will get ur picture back.Tries, to buy a refurbish LCD inverter board for the replacement.It a long shape board.

Apr 21, 2010 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

I have a problem with a gift from my sister, she gave me a viewsonic n2750w that she gave up on once it started to turn on and shut off on its own, i took it to my place, turned it on, the screen turns on...

Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board will solved this problems.Tries Websites, to buy a refurbish LCD inverter backlight board for the replacement.The board is a long in shape.

Mar 22, 2010 | ViewSonic N2750w 27 in. HD-Ready LCD...

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Plug tv in red light on ,press on button green light on but no picture then can not turn tv off

Look at the power supply first; look for burnt parts, bad capacitors, etc. Look for 5vdc, 12vdc, and 24dvc.
If you do have the voltages then the problem can be the main controller board.
Please post back what you find

Dec 22, 2009 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

When turned on, it make a ripple sound

The class D sound amp circuits are bad, it is part of the main board, very expensive, this is a common problem with this model, I fixed two of them, usually after 30 minutes it will soud like motor boat.

Dec 09, 2009 | ViewSonic N2750w 27 in. HD-Ready LCD...

2 Answers

Viewsonic n2750w inverter board, can i get new

Go here for an invertor you seek. Is from a different make/model, but is the correct part,
Thanks for using FixYa. Good luck with your repair.
regards robotek

Jul 08, 2009 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

Your Information

apollo did you fix your bug?
is it a on/off issue?

Jun 12, 2008 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

Viewsonic n2750w

these boards are not componet level repaired so any componet could be at fault. almost all of the componets are SMT and are difficult to replace. it's easier to replace the board. some of the DC to DC inverters are not sold seperately and are a part of the whole panel.

Jun 01, 2008 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

Owners Manual

Go to ViewSonic at:

Enter your serial number or "n2750w".
Provides PDF document.
Save to your computer by clicking the "disc" icon at the top left of the Adober Reader screen.

Mar 31, 2008 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

ViewSonic N2750w 27 in Volume turns down by itself tv can be on for a couple of minutes then turns down completely try to turn the volume up with the remote. will turn back down

Could be a problem with the down volume button on the tv. the board it's on ir its harness. Check them all. Make sure the volume buttons plastic actuator moves freely and is not stuck.

If these parts are all good, you have a problem on the main board. You may have to trace the control lines as far as you can and check any capacitors along the way. If you have an oscilliscope you can test the lines to see if the up volume is working correctly. If there is noise on it, you might find a bad capacitor if you can trace it back far enough. Schematic helps here.

Of course, make sure nothing is shining on the sensor window on the TV. You might want to scope that line as well (IR sensor line).

If none of that helps, get hold of Viewsonic and find your closest service provider. You can order a main board from them.

Of course, you could try just using the audio out jacks to an amplifier or a surround sound amplifer. Then you would use the remotecontrol for the surround sound system to control your volume.
Bet you were going to buy one anyway right?

Dec 27, 2007 | ViewSonic N2750w 27 in. HD-Ready LCD...

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