Question about ViewSonic VPW450HD 42 in. HD-Ready Plasma Television

13 Answers

Problem with viewsonic VPW450HD 42' plasma T.V

Hi, My tv is not functioning at all, the green light stays on but nothing shows up on the screen. Before this happened I noticed the picture suddenly converts into lot of dotted lines suddenly and then it would go blank. Any suggestons is much appreciated.

Posted by on

  • 8 more comments 
  • Cayaker Nov 18, 2007

    I have what seems to be a similar problem in my unit will go black but still have audio. It has to be powered down completely for 30 seconds or so before it will work again. It seems to be temperature related and is occurring more frequently. I may go the flat fee fix if this has worked for satisfactorily for anyone else.

  • Cayaker Dec 25, 2007

    TRY THIS...

    I took my unit apart and reseated all connectors and chips that weren't surface mounted and put it back together and my unit has been working for over a month now with out locking up!

  • mittalv Jan 26, 2008

    hello all,



    has anyone fixed their Viewsonic VPW450HD using the logic board NA18106-5006 ?



    i cannot even locate this board!



    should i throw my TV away? and buy a new one with a 2-yr warranty from costco for $800 that is lighter and uses less electricity?

  • walker01 Feb 25, 2008

    I am having the same exact problem as decribed

  • walker01 Feb 25, 2008

    We have the exact same problem. Our green light goes on, but there is no picture or sound and it won't turn off without pulling out the power cord. I called the repair contractor and it is $375 in labor just to look at it, plus the cost of parts. They will also have the TV for 15-20 business days. We'll have to drive it there too.



    It doesn't look like we're going to try to repair it. You can buy somethign new for $1,000.

  • Anonymous May 31, 2008

    Same problem here.  I used to be able to unplug, count to 10, plug back in and viola.  Now, half the time it doesn't work, and the other times the screen only appears for 20 secs to 5 minutes.


    I've had it for 3 years, and got the best deal on a 42 in at the time.  Now I feel like a ******.

  • glass859 Sep 07, 2008

    i am all for a class action lawsuit

  • petesjca Oct 16, 2008

    My monitor's screen goes black about once a week. This has been going on for maybe a year now. I usually turn it off, and then back on a few minutes later. This has been working, but i'm afraid it's going to "die" for good any day now...

  • rharper301 Oct 20, 2008

    All,

    I also have the same problem with the View-sonic VPW450HDTV Plasma TV. I had this problem twice already. The first time the TV was brand new and was replaced. The 2nd time, it was repaired under warranty. I believe the fix was the replacement of a logic board. I am now having the same problem again almost 2 years to the day that the last fix was done. Unfortunately, the TV is no longer under warranty.



    What many of you may not know is that this TV is not actually a Viewsonic TV. It is actually a Sampo from China. When we received our TV brand new, they forgot to switch the Chinese Sampo manual with the English Viewsonic manual.



    I am all for a Class Action Law Suit. For now, I'm going to go buy a new TV (not Viewsonic or Sampo!). Look what happened to Maytag with their Neptune washers when they failed to fix an engineering problem.



    Let's find a lawyer that wants to make a lot of money! :)

  • bgmedawar Nov 24, 2008

    We have had a very similar problem. When we turned the tv on the volume would be full blast. Then one day when this happened the green light came on, stayed on and nothing works...no picture, no sound. We had to unplug the tv to shut it off. We have had the tv for 18 months and were told by view sonic we were out of luck. Took the tv to a repair shop and it is also a bad logic board, which will cost $545 dollars to replace. The manager of the shop told us it wasn't even worth the technology to repair. We are definitely on board for anyone interested in filing a class action lawsuit.

×

Ad

13 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

Hello All,
I have a VPW450HD set that I just fixed. I get the feeling that they are not all the same inside, but this may be the same problem many of you are having. When turned on the green light on the front of the set would come on, if in a dark room I could see that there was some light to the screen ( not much ) but no picture and no sound. When I pushed the power button to turn the set off - it would not turn off. I had to turn it off from the main power switch on the back.

If you take the back off you will see a large square board in the center of the TV ( about 12" X 10" ). I would describe this as the main power supply board. Near the top there is a two wire connector with a Red & Black wire in it. Follow this wire up to the next board. It is a smaller board ( about 5" X 3" ) with the Red & Black wire connector near the top right corner. I would describe this board as a secondary power supply board. It sends the power down to the input board. On the secondary power supply board there is a six connector plug on the left side of the board. This is where I found the problem with mine. The connector is burnt and melted because of a " cold solder " joint. Carefully remove the secondary power supply board - you may be able to use the same connector if it is not to burnt and brittle. The six pins on the solder side of the board need to be re-soldered. These pins are thicker material than the other solders, and so do not solder well in a wave solder process. the pins do not get hot enough to solder properly, so over time an opening is created between the pin and the board.
Make sure you do not change the order of the wires if you have to replace the connector or if you solder the wires directly to the board. If you use the same pins and connector - check that they will make good contact. Often there is a residue on the pins and the small clips in the connector. I took the wires out of the connector and cleaned them ( one at a time ) with a small wire brush. A razor blade also cleans them well.

I hope this helps some or all of you !
Let me know if it worked for you or if you have questions.
Good Luck,
- Andrew
1stchoice1@msn.com

Posted on Jan 06, 2009

  • LanceTech Jun 16, 2011

    Andrew,
    Thanks for the information. I found that the one (red) wire was connected to the pin that needed resoldering. I am testing it out now but looks good. Will take a bit to heat up and see if it needs to be re-soldered.
    I have had this unit since May 2004 and about a month ago this problem happened. Beed a great unit. Glad I came across this site and saw your post! Maybe I can get another 7 years out of it.
    As for those with class action suite info, I do not believe that it will hold up in court. Speaking to my lawyers there are hundred of thousands of products that have something go wrong after warranty and when warranty is out they will not do whatever it takes to correct it for free. I do not support my own custom build computer systems after warranty goes out but I do offer the customer a chance to purchase extended warranties before their current warranty runs out.
    Also, I have been selling Viewsonic products for over 10 years. Most of their monitors and tv's used to have a 3 year, no questions asked, warranty. (had a client that used to keep a plant on her old crt monitor and the water would drip out the bottom and damage it. Viewsonic exchanged it 3 times before figuring out the issue). I have never had a problem with Viewsonic's tech support, EVER. If the unit is under warranty they take care of it. If it's out of warranty they have options.
    Now, if a large number of units were having this problem within the first year of the manufature date then I would think that they should at the very minimum issue a recall or send techs out to re-work the connections. That would have been a nice solution but as you can tell, most of these of this model were manufatured in 2004 or so. Newer, better tech is out now.

    Thanks again for the fix!

    Lance

×

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Andrew's solution worked perfectly! Mine turned out to need the joints to be resoldered and the pins cleaned off. The plug was slightly burnt but still usable. Great and clear instructions!

Posted on Dec 22, 2009

Ad
  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 14 Answers

I was told that mine was caused by lightning and was dead !!! it is 2010 this was kept in a cabin rarely used, so it was a freebie and the forementioned 6 pin plug was the problem im glad i found thios site , works perfectly although no atsc tuner

Posted on May 08, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I just fixed mine with Andrews advice. It worked great and was very easy. Thanks

Posted on Feb 20, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I had the same problem and used El Drew's fix and the TV is now working perfectly. Thanks for a detailed troubleshooting guide- it saved me lots of money. NS

Posted on Nov 01, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Hi Andrew,

Thanking you for the posting how to repair Viewsonic VPW450HD Plasma. I had the same problem I manage to repair it the way you described. Thank you again for the wonderful posting.

Rishan

Posted on Aug 24, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I HAD the same problem; I followed El Drew's advice (Jan. 6, 2009 posting) and was able to fix mine! It's been put into semi-retirement. I hope to get a few more years of life out of it.

Posted on Mar 03, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

When the green light only comes on, and no TV or sound, simply wait 30 seconds. Then change press the channel up button. Seems that if you turn off the TV when you are on High Definition mode or another source and you turn it on, the TV does not know what to address. 

Posted on Aug 14, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Can anyone tell me if they have permanently fixed this problem with their Viewsonic VPW450HD ?

I opened it, cleaned it and reseated everything. It worked for 20 mins and then same problem.

Did anyone try and replace the Logic Board NA18106-5006 as was suggested.

I cannot even find it on the 'Net.

SHOULD I THROW THE TELEVISION !?

spending $600 on repairs does not seem worth it as I can get a new TV with a 2 yr warrantly from Costco for $800 and it is lighter and uses far less electricity.

Posted on Jan 26, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have found my problem to be in either the connectors or removable "chip creep" caused by thermal expansion/contraction. I took my unit apart and reseated all connectors and ICs that weren't soldered in and put the unit back together and now my unit is working again!

Posted on Dec 25, 2007

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,113 Answers

What Happened does this story get a ending?

Posted on Dec 25, 2007

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

I just wanted to add that I have the same TV w/ the same exact problem. As the problem happened as soon as the warranty expired, Viewsonic is not interested in supporting me as a customer. (Very bad customer service over there, considering I paid over $3500.00 2 years ago) They would not allow me to extend warranty after purchase either. Personally, I will NEVER buy "Viewsonic again. Stick to Sony, Samsung, Panasonic, or even Mitsubishi... Problem Description: As per Viewsonic Tech that inspected my TV, the problem seems to be the part: Part: Logic Board Assembly Part#: NA18106-5006 Pls. note that this part has been "out-of-stock" at there website for over 14 months. If I could get it, I would change it myself, but Viewsonic doesnt make it easy for the consumer. After 6 months of phone call & emails, I was able to discover that for out-of-warranty TVs, there is only 1 "Viewsonic Authorized Service Center" in the US. They charge a $325 flat fee & will fix whatever is wrong. I will be shipping my TV to them soon (at an additional s/h charge of $500, from NY) I will post the results. Anyway, here the info on the "Viewsonic Authorized Service Center": (Good Luck) Edwards Repair Center 14500 Proctor Avenue City Of Industry, California 91746 (626) 855-8188 www.edwardgroup.com

Posted on Jun 25, 2007

  • jose paulino
    jose paulino Apr 24, 2008

    Hi, guys!

    I previously posted the info on the only "Authorized Service Center" able to fix this problem for the 325.00 Flat fee.



    However, I have yet to send out my unit for repair due to shipping costs which will bring my price up to about $1000.00.

    For that, like other people have commented, I could get another Plasma now a days.



    I will try the solution posted of "re-seating any parts not soldered in." Maybe this will correct my problem as it has for some of you. I'll post my results...



    Anyone know how many people need to have this same problem with this same unit before someone contacts a lawyer?

    Class Action anyone? (Any lawyers on this board?)

    Its just wrong for us to lay down some much hard earned money & all have the same problem from the same company, with the same F** up customer service!



    Its seems apparent to me that they sold us a DEFECTIVE product that fails as soon as the warranty runs out.

    Let me know what you guys think about this.

    Your opinions on this will help me decide how to proceed.

    Thanks everyone...



    Zegrande1...

  • jose paulino
    jose paulino Jan 07, 2009

    Pls. add me to ANY pending Class Action Lawsuite against Viewsonic.

    My TV still won't work.

    Tried everything on these boards.

    Even obtained a copy of the "Service-Manual", not the User Manual.

    My TV still don't work.



    Zegrande1@aol.com...



    Good Luck to all of us!

×

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

I will buy all your broken tv's??? just an idea.

Posted on Aug 17, 2009

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.
Good luck!

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

42PM3MV turns on, but displays nothing on screen


some tv'srequire a channel button to be pressed or the on/off button on the remote to function try this , if you have then i'm stumped sorry.

Feb 15, 2012 | LG 42PM3MV 42 in. PLASMA TV

3 Answers

Viewsonic VPW450HD Plasma


Hi,

Did you try unplugging the TV from the power for a few hours?

Dec 25, 2007 | ViewSonic VPW450HD 42 in. HD-Ready Plasma...

1 Answer

White screen that says "user settings" at the bottom it says "Restore All Defaults"


GO TO MENU
USE REMOTE CONTROL..... AND SELECT SETTING....AND FOLLOW THE PROMPT.....BEST WOULD BE TO SET SETTING TO FACTORY SETTING......THIS WILL SET THE TV TO ITS ORIGINAL SETTING......FROM THERE U CAN MAKE UR PERSONAL JOICE HOW U LIKE PICTURE AND SOUND SETTING
HOPE THIS WILL HELP

Nov 20, 2009 | ViewSonic VPW450HD 42 in. HD-Ready Plasma...

1 Answer

Broken coaxial input on a samsung 42 plasma


Most likely can replace just the tuner. I will need a model number of the TV first.

Nov 18, 2009 | ViewSonic VPW450HD 42 in. HD-Ready Plasma...

1 Answer

No picture or sound on 42" plasm TV


Try unplugging tv and then plugging tv back on if that doesn't work then you will need to replace the signal board

Jul 06, 2009 | ViewSonic VPW450HD 42 in. HD-Ready Plasma...

1 Answer

Macwynn tv blacking out


cleaning inside the cabinet. (and there wasn't a lot of dust). and clean connections.

Jun 24, 2009 | ViewSonic VPW450HD 42 in. HD-Ready Plasma...

1 Answer

How do I remove the mount for the stand on a Viewsonic VPW450HD Plasma TV?


If you are using the stock leg's.

I have the same model, there are 4 knobs on the back of the unit that get inserted into the legs. BE CAREFUL... the unit is heavy, All you have to do is raise one end of the unit up about 1 1/2" and pull towards you a little. You may have to fudge with it a little until it comes out of the leg, but that should be all you need to do.

Apr 19, 2009 | ViewSonic VPW450HD 42 in. HD-Ready Plasma...

3 Answers

Daewoo DSP4210GM 42 in. EDTV Ready Plasma TV


what way did you set the tv in the transport vehicle. something has been knocked loose inside or the videomask has been damaged?

May 14, 2008 | Daewoo DSP4210GM 42 in. Plasma Television

1 Answer

Sound yes but can't get the screen to light up


I have a ViewSonic flat screen TV that was purchased in November of last year. The problem that has just occurred this weekend, there are 2 channels that are getting a Radio stations
commentary instead of the actual tv program that is displayed.

How can I fix this problem?

May 12, 2008 | Haier 42EP24S 42 in. EDTV-Ready Plasma...

Not finding what you are looking for?
ViewSonic VPW450HD 42 in. HD-Ready Plasma Television Logo

2,996 people viewed this question

Ask a Question

Usually answered in minutes!

Top ViewSonic Televison & Video Experts

Cindy Wells

Level 3 Expert

5380 Answers

The Knight
The Knight

Level 3 Expert

75283 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

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

Answer questions

Manuals & User Guides

Loading...