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

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Viewsonic n2750w i was just reading your post on the problem with the DC to DC converters in the model set can you give me a idea what component maybe gone and might be able to be replace. I live in Canada so shipping new board from California doesn't seem like an option

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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.

Posted on Jun 01, 2008

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Remote code for ur5u-8400A and Viewsonic N2750w


0493,0491,0275,0273. Try these codes. If you wish to get more information, check these links. Setup procedure, and setup code list to many popular remote controls are given. Pull up older posts.
http://electro-medical.blogspot.com/
http://electrohelponline.blogspot.com/

Dec 20, 2013 | ViewSonic N2750w 27 in. HD-Ready LCD...

3 Answers

Popping noise from speakers.


Does this noise happen on all inputs? such as tv, cable, vcr, dvd player or just some of them. By letting me know, we can further figure out this problem, thanks

May 10, 2008 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

How to connect digital converter box to viewsonic n2750w lcd tv


You can use the RCA cables to the input of the LCD TV so that the HD can be viewed. If HDMI is available it can be used to connect. The cable line must be connected to the box.

Nov 26, 2011 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

Picture goes black


It can be due to bad caps in the power supply (24vdc) or failing backlight inverter boards. You need to check the power supply caps and the DC voltages first.
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20N2750W_MARCH%202005/

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.

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

1 Answer

Turn tv on, it loses power immdiately and wont come on


Check DC filter caps in the power supply first:
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20N2750W_MARCH%202005/

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 19, 2010 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

Viewsonic N2750W...wheres the inverter?


I'd say it's more than likely built into the power supply on this model, take the back off, the inverter plugs into the back of the panel on both the left and right, if not, you can take photos of it with the back off and send it to me and I'll identify it for you

May 04, 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

N2750W intermittent power on problems


Success follow up.

So it wasn't the PSU board but Viewsonic Parts was kind enough to give me an RMA# and I shipped it back. After hearing about dc inverter problems on other posts and trying the "hold down both volume buttons on the top of the set at the same time check" and noticed that I got a big blue square in the center of the screen it was easier to see why it wasn't the PSU. Something was powering the LCDs blue pixels so obviouosly the 120V to 12V and 5V PSU conversions were happening. Wish I new of this button test before I ordered the PSU. So I ordered, received and installed the main board a week ago and it has been working just like new. I would highly recommend this to anyone comfortable swapping out motherboards or the battery in your first generation ipod. I just did this a couple of months back and this helped me in being able to remove the back case of the TV set off without damaging, or scratching it. This is probably the hardest step of the repair. See my other post for details on opening the LCD-TV. The main board is behind the shealding in the center back of the the screen. You have to unscrew the support screws that help reinforce the RCA connectors and remove the post screws from the VGA and DVI connectors. There are some cable connectors that also need to be disconnected. Again, if you've swapped out a motherboard before (other than a snap-in and screwless Dell) this should be no problem.

There are two main boards listed on the web-site so call and confirm for your set. Mine was a B-00001786 Main Board priced at USD218.59 for an N2750W manufactured in Feb 2005

Good Luck. I was glad to get my 2 yr old set back for about a fouth what I would pay for a new set.

Mar 20, 2008 | ViewSonic N2750w 27 in. HD-Ready LCD...

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