Question about ViewSonic N3251w 32 in. LCD HDTV

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Where to buy the Viewsonic Main board??

I have the same problem posted here several times, my Viewsonic hdtv flat screen has no picture and the little green light flashes red. Your experts have advised to get a new main board... but where?? The Viewsonic site has none available--but lists the price at around $275 or $300... I could buy a brand new flatscreen for that. Can I get the mainboard cheaper and WHERE do I look???
THANKS

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  • ViewSonic Master
  • 34,170 Answers

Fixya is unable to suggest parts sources.

Posted on Aug 07, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 395 Answers

SOURCE: Picture goes out after 1 second, audio is fine

the problem is not the mian board but the DC to DC inverters that drive the lamps behind the panels some manufactures make them available seperate from the panel but most are a part of the panel. so the whole panel may have to be replaced.

Posted on Jan 17, 2008

  • 395 Answers

SOURCE: Scaler board and cables - where to buy???

if you have the part # try www.vancebaldwin.com for parts don't use ebay you may not get a working one.

Posted on Mar 23, 2008

  • 1 Answer

SOURCE: VIEWSONIC VPW505 Screen flickering

Got it. I was the 'guest' who posted that I had the same problem. Not the CTRL board as I earlier thought. It boils down to the Y-SUS board (right hand side as you face the back of the display) In the upper-upper left hand quadrant you'll find a small capacitor labelled "C70".

This is the naughty one.

You can verify this by removing the back of the display, powering up and then with a small extended flame lighter, GENTLY warming C70. All it takes is about 2 to 3 seconds and the display will steady up just like always.

C70 is a surface mount capacitor, most likely 33uf at 25 volts. Haven't confirmed this yet. Will post again when I've affected the repair on my VPW505.................

BTW: This is not something you want to attempt unless you have experience with electronics. No.....really!

Posted on Dec 30, 2008

  • 187 Answers

SOURCE: black screen

Your mainboard is damaged, replace it and that will solve your issue.

Posted on Jun 06, 2009

jhinsincity
  • 616 Answers

SOURCE: Viewsonic HDTV 32" Channel Issue

Might have a bad tuner, try using one of the a/v inputs and an external signal device such as a vcr. Julio milleniumtvsvc@gmail.com

Posted on Jul 23, 2009

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1 Answer

Tv problem


If you're able to see the logo on the screen, it's likely a bad main board.

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My Samsung Plasma TV screen doesnt always turn on. Often I have to turn it on and off several times before the picture appears on the screen.


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
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To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced

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Why Vizio E241A1 LED TV will turn on, but no picture or sound. Is this the Power Supply Board or the Main Board?


Fault with the main power supply regulator section. Either it will be on a separate board, or on the part of its main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

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PICTURE AND SOUND ARE FINE. TV STARTED CLICKING SEVERAL TIMES. PICTURE GOES BLACK, IT CLICKS SEVERAL TIMES, AND THE PICTURE COMES BACK ON. DOES IT ALL OVER AGAIN AFTER SEVERAL SECONDS.


Fault to the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Jul 06, 2015 | Samsung Hpt4254 42 Hdtv Plasma

1 Answer

Picture goes out on occasion


The power supply board has some electrolytic capacitors that have gone bad. Put a new power supply board in it. You can get it here : TV Parts Universal TV Stands DLP Chips ShopJimmy

May 11, 2014 | Sharp LC42D65U 42 in. LCD HDTV

2 Answers

My Viewsonic n3260w has no picture when i raised the Back light. I brought it to a technician and he told me it was the main board. Bought the mainboard and installed a new one and it didn't fix anything....


The tv T-CON board only board left could causes this problems.That the board usally sit at the middle at the botton of the LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-CON board for the replacement.

Mar 22, 2011 | ViewSonic NextVision N3260W 32 in....

1 Answer

The TV won't turn on anymore. It gets power but the button isn't lighting up and no picture or sound. It is difficult to change out the power button board?


First check the voltages on the power supply. That is the most common problem with ViewSonic in this case. If all the voltages are there and capacitor and diodes all look good, then it would be the main board.

Feb 04, 2011 | ViewSonic N3251w 32 in. LCD HDTV

1 Answer

Power is on but the screen will not turn on


Hello,

IF the backlights are on but you just get dim glowing on the screen when look at the screen in darkened room then the T-CON board is bad or it is not getting the 12vdc from the main logic board. Need to use logical troubleshooting before buying the wrong parts.
Hope this works.....

Jul 02, 2010 | ViewSonic N3251w 32 in. LCD HDTV

1 Answer

Audio OK no video


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

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1 Answer

Samsung LN-S3241D HDTV LCD snowy display


The main board may cause this problem. If it wass happened when you play DVD, so the main board needs replacing.

Aug 16, 2009 | Samsung LN-S3241D 32 in.LCD HDTV

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