NEC PlasmaSync 42MP3 42 in. Television Logo

Related Topics:

Posted on Aug 16, 2007

NEC plasma TV problem

One and a half inch black vertical line on my NEC PlasmaSync 42 MP3. Possible display panel failure (From what people say on the Internet). Warranty expired. Contacted NEC support but the want £300 just to take it for repair without giving any estimate and I am not sure if I should just throw it in the bin and buy a new one.

  • 3 more comments 
  • vinylbudgie Nov 06, 2007

    Mine now has 3 of these lines. NEC told me the whole panel will likely need replacing...

  • Anonymous Dec 10, 2007

    I have the same problem, i find the problem and i think it´s not possivel to repair . Only exchange the flat painel plasma .
    It is a small component pasted on flat cable that goes to the plasma and enters the glass.
    I am sorry to see something as simple without repair.

    If someone can replace that component say me [email protected]

    It is very easy to find the probelema but repair it .....

  • Anonymous Sep 25, 2008

    I have some discoloration in the middle of the screen. Also the unit turns off randomly by it's self.

  • Anonymous Nov 22, 2008

    Hi there,my 42 inch NEC plasma was switched off accidently at the mains!!and now it will not come on,the screen flickers and then shuts down.I think i saw a black line vertically from about 11/2 inches in from the left hand side before this happened!!Any Ideas???


  • Anonymous Jan 24, 2009

    I was playing with the functions controling the horizontal and vertical size of the picture in set up mode and shortly thereafter my screen has about a 2 inch vertical black line with a thin line of color next to the black almost in the middle of the TV screen.... I'm calling NEC on Moday, but don't have a good feeling..It is after all 7 years old... Not to mention my brand new 50' plasma was $800...I'd bet the repair on this is going to be brutal..


5 Related Answers


  • 244 Answers
  • Posted on Nov 26, 2007

SOURCE: Horizontal lines on NEC plasma

Intermittent horizontal deflection
Resoldered the pins of horizontal deflection transformer
Picture is horizontally narrowed and deformed
Capacitor C2913 (390nF, 250V) on the deflector PCB had lost capacity
Geometric distortion, Pillow, and picture enlarged horizontaly
The problem was a short from GND to pin 11 inside IC301 (TDA8350Q). This pin is the output of amplifier for geometric correction signal. Replace IC301



  • 1 Answer
  • Posted on Nov 18, 2008

SOURCE: Problem with NEC PlasmaSync 42MP1 42 inch - goes to standby w/no picture

Has anyone figured this issue out? Im really hurting without a tv,


  • 1 Answer
  • Posted on Apr 05, 2010

SOURCE: NEC PlasmaSync 42MP2 TV Stand required

I need help to find a tabletop stand for my NEC


  • 2335 Answers
  • Posted on Apr 19, 2010

SOURCE: NEC PX-42VM3A 42" Power problem

I have read that this has been fixed with little more than a hard reset. This means just unplug your set for 10 minutes or so and let all the power seep out of the boards and capacitors, then plug it back it.

If that didn't fix it, your unit needs servicing. If you are handy here are some troubleshooting steps:

Check the fuse at Y-Sustainer pcb.
If blown do not replace. Look instead at scan converter boards. They are connected between y-sus & plugs from display (left side with face down, back open). Look for signs of 'burning' at upper and lower long boards. If any imperfections are found, replace all three boards: Y-sus, up & low scan.
If fuse was okay, check power supply for bloated capacitors (big board in middle of set).

I hope that helps.


Bud Martin

  • 11361 Answers
  • Posted on Jan 21, 2011

SOURCE: My NEC 42 Inch plasma tv has sound but no picture.

Model number?
Please inspect the power supply, y-sustain, and Z-sustain boards for blown fuses, caps, blown parts first.
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors:
Learn about bad caps:
Capacitors kit: he can make you a set of caps.
Or, 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.
Please leave rating if it helps.


Add Your Answer


Uploading: 0%


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



Related Questions:


Black vertical line on tv.

defective vertical ic, supply...devective yoke.

My nec 42 in plasma tv has a black line coming from the bottom of the tv to the top can this be fix

double check that there is no interverance from the lead (try adiverent lead iv not check or get somwhone to check the internal connections that they are not lose or dirty other wise proceser board us

Black line in the middle of the screen

check for vertical ic it is faulty, replace and try again

Thin red line in middle of screen on nec 42 inch plasma monitor

I had the same problem -red, vertical bars along the right side of my Samsung 42" Plasma- and this is what fixed it: Removed unterminated cable.
I had hooked up an HD video camera to the set about two weeks ago. While I disconnected the camera I left the other end of the connector cable plugged into the T.V.. As I've since learned from friends who work in television, this is what's called an "unterminated cable" -meaning one end is unconnected. It can lead to problems with electrical interference and appears to have been the problem in this case; When I disconnected this cable from the T.V. the red bars went away.
So, check your cables. Make sure everything is properly connected and get rid of anything that might be picking up interference.

Nec plasma tv 42MP4

these plasma vertical black lines are notorious. there's a video of a fix on this plasma tv repair site. good luck!

NEC 42mpi plasma tv not working

Check the +170 volt  test point on the power board (not the power filter board, the one that the plug comes into) but the one to the right of that board. It has a 5v test point (TP +5v) , a +170 and a +70. I've found that the +170 transformer goes bad, and won't allow you to adjust the voltage using the pot screw. 

A Plasma TV

Sorry forgot to say ours is an NEC plasma PX42vp4g/s

Nec plasmasync 4200w 3 vertical lines one yellow two purple

Sorry to tell you, it is not a scratch, but a bad cable connection from the driver IC's, connecting up the plasma screen to the drive board, or the drive IC for that section of the screen is defective. It is not a repair a user can do as there are no user replaceable parts inside this set. Your going to have to call NEC or an experienced Plasma repair shop.
Not finding what you are looking for?


Ask a Question

Usually answered in minutes!

Top NEC Televison & Video Experts

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Cindy Wells

Level 3 Expert

6692 Answers

Brad Brown

Level 3 Expert

19187 Answers

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

Answer questions

Manuals & User Guides