Viewsonic n3752w lcd tv has goneblack,the green light is on.

yes you should get a replacement part for it

Leave it unplugged for 10 minutes (normally 1-2 minutes to clear the memory). Try turning it on again via the TV. Can you also turn it on via the remote?


If this helped, please mark this as helped.

User manual or service manual?

Service manual:
http://elektrotanya.com/?q=showresult&what=ViewSonic%20N3752w&kategoria=&kat2=all

User manual:
http://www.viewsonic.com/assets/031/8559.pdf

Watch out for fail power supply due to bad caps.
http://s807.photobucket.com/albums/yy352/budm/VIEWSONIC/

here is the service manual hope it sheds some light. look on page 49

Best of luck

You need to check and see if all the control voltages (Power supply on) and DC output voltages are present. PS pin out: http://www.fspgroupusa.com/download/specs/FSP271-5F01_DIA.pdf

Please read my guide to see how LCD TV works.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: 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.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

We have the same problem with ours. I'm suspecting it's the power supply board. I'm going to order a new one, swap it. That should fix it, I suppose.

FAULTY POWER SUPPLY CAPACITORS

AVERAGE REPAIR COST £60 TO £100

You may have bad main logic board, http://www.shopjimmy.com/catalogsearch/result/?q=n3752

The back light is working for sure, you may want to check if the Power supply on signal goes to 5v when you push the power button.

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

Check the caps and the voltage output of the power supply.
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

It sounds like the LCD panel is badly damaged, if that is the case, it will not be worth it, sceen is the most expensive part of the whole TV, you may be able to sell each parts of the TV on EBAY. Post the pictures of the screen will help.
Parts price: http://www.shopjimmy.com/catalogsearch/result/?q=ViewSonic+N3752w+