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

1 Answer

N2750W intermittent power on problems

Worked great for a year, noticed recently that sometimes it comes on and only displays a deep blue full screen and doesnt respond to any controls, remote or onboard. After cycling off the main power switch, it will sometimes come on normal. It is getting harder & harder to get it to come on and work however. Seems like if it has been sitting for a couple of days, it tends to turn on better.

Posted by on

  • 2000Intruder Mar 27, 2008

    I had the same problem and now it won't turn on at all. I suspect it is a power supply module. I found three different part #s on the viewsonic website that all describe a PSU power supply unit. I'm going to try to confirm the right one and take a chance at swapping it out. The part is between 70 and 90 USD so it might be worth a gamble as I can swap it out myself.

    Anyone else have this problem or a solution?

  • lanmangler Mar 29, 2008

    When I first called Viewsonic the 1st person on the phone said it might be a power supply board, and then proceeded to send me to tech support, which was no help at all once they found out I was a second owner and that it was out of warranty. The phone triage person that was initially helpful also made it a point to let me know all parts could be ordered directly by consumers as noteed. So, anybody know the trick to opening up the casings on the N2750W?

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 3 Answers

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.

Posted on Apr 18, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I recently purchased the 42 inch LCD and the picture is beautiful. The problem is, I will get these intermittent, yet frequent flashes of BLUE screen. Sometimes it is like the blink of an eye, other times...


Hi:
If you recently purchased this unit, i suggest you take it back to the vendor, this is an indication of a bad main or intermittent T-Con board. You should still be under the one year manufacture warranty and they will send someone out to check or replace the boards.

Mar 28, 2011 | Hannspree ST42DMSB 42 in. LCD TV

1 Answer

Kitchenaid Superba freezer side cuts out sometimes


Hi,

As the weather is getting warmer for many people their freezer2_bing.gif and/or refrigerator do not work right because of a dirty condenser coil...

Check out this tip that I wrote about that... it is a great place to start trouble shooting your unit...and something that you can do rather then calling a repair person to do a simple thing for you...

Refrigerator2_bing.gif Condenser Coil Cleaning Refrigerator Repair
http://www.fixya.com/support/r4024657-refrigerator_condenser_coil_cleaning

Refrigerator Troubleshooting2_bing.gif Refrigerator Compressor
http://www.fixya.com/support/r3885294-refrigerator_troubleshooting

Refrigerator Compressor Start Capacitor and Start Relay
http://www.fixya.com/support/r4023749-refrigerator_compressor_start_capacitor

heatman101

Jun 05, 2010 | KitchenAid KSCS25FKSS Side by Side...

2 Answers

Hi, I have a Vizio P42. Worked fine for 5 years. Today is has a vertical blue stripe 1.25" wide, 4" from left side of screen. Blue stripe remains even if all inpust cables are removed. Problem is...


it's burning out. that's a sign of tv failing. there is no repair for that if you used it for 5 years, i doubt you would have warranty for that by now, best option is to replace it.

Oct 17, 2009 | Televison & Video

3 Answers

Sony projection tv 5 years old


you will need to call an electronic repair shop to get this problem resolved

Oct 30, 2008 | Sony KP-57WV700 57" Rear Projection HDTV

1 Answer

Intermittant loss of power


Try the crankshaft sensor.

Jun 04, 2008 | 2001 Jeep Wrangler

2 Answers

A horizontal line on sony 32'' LCD


This is a known defect with the lcd panel.With a little persistence to the customer support with sony they will fix the problem for free.

Apr 24, 2008 | ViewSonic N2750w 27 in. HD-Ready LCD...

8 Answers

No picture but audio OK


You have a bad inverter board.I have seen this in quite a few units,various brands.Call electronica 303-322-3037.This is the only place i have found that can supply the part at a resonable price.The part usually comes as a display assy.

Apr 06, 2008 | ViewSonic N2750w 27 in. HD-Ready LCD...

2 Answers

ViewSonic N2750w on the fritz


have the scaler board replaced and LVDS cabe replaced

Nov 24, 2007 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

Hitachi 51F500 (Two separate problems?)


My guess is that the sound you heard was that of some High Voltage discharges that could have fed back and damaged some semiconductors including the microprocessor itself. Since it could be a very expensive repair, I would be very tempted to look around for a new HDTV by JVC or Toshiba. Hitachi has slipped a notch or two in recent years according to my experience.

Jan 25, 2007 | Hitachi 51F500 51" Rear Projection...

Not finding what you are looking for?
ViewSonic N2750w 27 in. HD-Ready LCD Television Logo

620 people viewed this question

Ask a Question

Usually answered in minutes!

Top ViewSonic Televison & Video Experts

Cindy Wells

Level 3 Expert

4852 Answers

The Knight
The Knight

Level 3 Expert

71050 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a ViewSonic Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...