20 Most Recent ViewSonic N3251w 32 in. LCD HDTV - Page 3 Questions & Answers


Usually power supply problem.If you want to open it yourself,then(unplug the unit first) unscrew the backpanel,get a clear two inch wide packaging tape.As you remove the screw tape it to where you got it so as not to loose them and know where they belong.Usually the power chord is connected to the power supply board.Observe any capacitors after the transformer(hot side do of the board)which have bulged top(usually 680 to 880nf/35 volts)but try to see the values cause they differ in brands,replace them with the same values.

ViewSonic N3251w... | Answered on Oct 27, 2010


More likely to have failed power supply module.
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20N3250W/

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Please post back what you find.

ViewSonic N3251w... | Answered on Oct 23, 2010


I was told by other people that the phillips codes and the magnavox codes work for viewsonic tvs and moniters with alot of universal remotes give those a try and if it works let me know what remote you were using, My universals are not working but yours may,

ViewSonic N3251w... | Answered on Sep 12, 2010


Check this site to find the power supply for your TV.

ViewSonic N3251w... | Answered on Aug 30, 2010


Or it may have dyinf power supply due to bad caps, or shorting out backlight inverter board.
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20N3250W/

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

ViewSonic N3251w... | Answered on Aug 19, 2010


check all connections to the power supply, also check for any bad caps in the logic or mail board

ViewSonic N3251w... | Answered on Aug 12, 2010


More likely to be the main board which is expensive, try unplugging it for about an hour to let it reset itself first.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx

ViewSonic N3251w... | Answered on Aug 07, 2010


The Menu Lock is enabled or disabled by pressing Vol+ and Vol- at the same time. (The two left most buttons on the front panel of the TV.)

I hope this helps.

Cindy Wells
(Check if the Menu button works on the TV (the third button from the left). I've had some remotes lose the menu button while power, channel up and down, and volume up and down work.)

ViewSonic N3251w... | Answered on Jul 12, 2010


You may have failing power supply, check the DC filter caps, this is the same as n3250.
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20N3250W/

If you are going to DIY and have proper tools and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

ViewSonic N3251w... | Answered on Jul 04, 2010


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.....

ViewSonic N3251w... | Answered on Jul 02, 2010


Hi


Thanks for using FixYa. If you are getting power supply to the cord however, there is nothing coming up on the unit then it is the power supply section that is causing this issue. You’ll have to open the back of the unit and then check for any bulged/blown capacitors on the power supply board. Also check for any loose wires inside the unit from the power supply board. All this is only recommended to be done by someone who has electrical expertise and a basic knowledge of internal circuitry of the unit. Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

ViewSonic N3251w... | Answered on Jun 21, 2010


possible main pcb short

ViewSonic N3251w... | Answered on Jun 10, 2010


The button board or the IR board in the TV. A stuck button can cause some strange behavior. Typically, the TV has 3 control lines: POWER BUTTON, FUNCTION BUTTONS, IR (Remote). Try disconnecting the button board, it should have a connector right on the board. If that fixes it, you can leave it that way or try to find a replacement board (not sure where you should look). If it's the IR board and the button board is daisy-chained through it, you will need to either replace it or repair it. Most often the little receiver is bad when there is a problem with this type of board. You may be able to find a Receiver IC, but just know that it has to match the TV. I hope this was helpful and points you toward your destination. Best wishes.

ViewSonic N3251w... | Answered on May 07, 2010


The power supply board has failed. Very common problem on this model and especially this brand. Buy another power supply module that is compatable....different modules used in the same set.

ViewSonic N3251w... | Answered on May 05, 2010


Lots of power supply issues with Viewsonics. Out of warranty? Open up the back and have a look at the power supply if you know something about electronics, otherwise, call a repair shop.

ViewSonic N3251w... | Answered on Apr 23, 2010


Hello,

Your problem really does sound like a capacitor problem, some brands of caps will fail without any visible signs of failure. If you can post a picture or two or the power supply board to our tech site at: http://www.ccl-la.com/forum/index.php our techs will look over the board and get back with you on te steps to take it get it repaired. If you don' want to do the repair yourself we do offer a repair service, you can get more information about it here: http://www.ccl-la.com/blog/index.php/service-request-form/

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

ViewSonic N3251w... | Answered on Mar 14, 2010


With the tv on some channel (and sound working), take a strong flashlight or other light and bring it up to the screen. Do you see a faint picture? Sounds like the backlight has failed. Could be the power supply for it or the inverter board or one of the lamps. Are you qualified to open the unit and look around? Do you have a voltmeter?

ViewSonic N3251w... | Answered on Mar 10, 2010

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