Question about ViewSonic N3250W Television

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ViewSonic N3250W will not turn on

I never remember seeing a red standby light. But I know that right now there is none. This would be if the unit is plugged in but not on, I guess.

There is no fuse from the outside but I opened the back and found a fuse inside on the (what looks like) the power supply board. It checked OK when checking it in circuit.

Taddypole

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  • taddypole Jul 03, 2008

    Found a power Online my MoniServ. Not sure if this is the right one but looks simular. $140. Now if I could be sure if the only one is truly bad.



    Taddypole.

  • taddypole Jul 03, 2008




    This is the power supply..

  • taddypole Jul 03, 2008

    Just tried to remove the connectors. Can get the AC power connecter removed but not the others. There's some sort of locking mechanism but I can't figure it out. Don't want to break them.



    Also, tired measuring for any voltages at the pins that supply voltages to the TV but nothing. Do get the 115VAC coming into the board.



    Taddypole.

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  • 6 Answers

Check out this website:
http://pagesperso-orange.fr/alain.mionnet/enii3210j.htm

I got one of these tvs from a co-worker who didn't want to try to fix it. I stumbled across this brilliant person's work and ordered the small chip from a place in san fran. it was here in 3 days, i carefully soldered in the new chip (not at all easy, be careful not to pull up the contacts on the circuit board when you remove the burnt one) and the tv has been working fine ever since. only $20 with shipping.

Posted on Aug 06, 2008

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1 Answer

My Viewsonic N3250w tv I have had for 4 years no longer powers up. If you hit the button it lights up around the switch but then almost immediately powers back down. Does this sound like a power supply...


Power supply module will be the first thing to check, look for bad caps, find out if it has standby 5vdc and other voltages.
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.

Oct 05, 2010 | ViewSonic N3250W Television

1 Answer

ViewSonic N3250W will not turn on


Do you get a red standby light at all? If not, I'd look first for the standby transformer as being defective. There may also be a fuse right by the AC power cord. Look around inside and update this with your results. Post whether or not there is a standby. We'll need to go step by step on this one.

Dan

Jul 03, 2008 | ViewSonic N3250W Television

1 Answer

Viewsonic N3250w. Power supply went out and I replaced the bad capacitors. TV worked for a week then now when I turn it on, the screen just turns on and off


Check to see if the 24vdc disappear when the screen black out, it is always there then you have problem in the backlight inverter board. Did you replace the caps in the 24vdc supply also? I replace the whole set.
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20N3250W/

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

Sep 05, 2010 | ViewSonic N3250W Television

1 Answer

My television (viewsonic n3250w) started turning itself on and off from time to time and then much more frequently. Now the tv will not turn on at all. The light on the front of the tv comes on like normal...


You may ahve either the main logic board problem or the power supply module problem, look at the power supply first since it is easy to do without much tools needed, look at the DC filter caps fopr leaking/bulging tops (notes: cap can look OK but may have high ESR whcih you will need caps meter taht can measure ESR).
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

Please post back what you find.

Jul 22, 2010 | ViewSonic N3250W Television

2 Answers

Viewsonic N3250W I replaced the power supply board but when I turn on, the screen flashes real quick and there is no picture.


it was not the power supply its the invertor board that controls the back lighting/switch on screen flashes lights go off/shine torch into screen ull see picture/get new invertor board 7 or 8 little plugs go into it

part or repairs in uk ohm supplies

Jan 08, 2010 | ViewSonic N3250W Television

1 Answer

ViewSonic N3250w


The defective power supply module will cause the following symptoms:
No Display and no Sound, Then Power indicate light changes from Green to Red.
Turns OFF by itself.
Needs to be unplug to make it work.
Works for a few minutes then turns OFF.
I repair these power supplies, if you need further assistance jah2mil@hotmail.com

Aug 22, 2009 | ViewSonic N3250W Television

1 Answer

ViewSonic N3250W Locked


Yeah, my 19 year old daughter did the same thing. I found a solution on the 2750W thread
http://www.fixya.com/support/t115143-tv_just_flashes_different_colors

Solution - just press Menu, Enter and Power buttons at once.

Jan 28, 2008 | ViewSonic N3250W Television

1 Answer

ViewSonic N3250w has black line


Unfortunately, my experience with LCDs says that when you see something like this, it usually indicates that the LCD screen is cracked. If you press gently in the area of deformity and it goes clear then returns to black when you remove pressure, it's a tell-tale sign of a cracked screen. Go to e-bay and see if you can get a replacement screen if you're mechanically up to changing it yourself, else an electronics repair shop might be your only hope.

Dec 08, 2007 | ViewSonic N3250W Television

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