Question about Televison & Video

1 Answer

I just bought a used Samsung LCD TV , model : LNT4671F. When we bought it, the picture and everything was perfect and working fine. When I brought it home and turned it on, there was severe color distortion in the middle of the screen. After leaving it on for a while and/or tapping the back of the tv a couple times, the color distortion in the middle of the screen disappears and only the top right corner of the screen's colors become distorted. Eventually a single vertical black line appears on the right side of the screen and stays there. This pattern varies everytime we turn the tv on and off. We took it to a repair man who says that it is the "signal bulb" or "signal board" (he has a strong accent, i'm not sure which he said) . Any idea what the problem is and would I be able to purchase and install the replacement parts myself? He is asking $385 for parts and labor. Any help would be greatly appreciated!

Posted by on

1 Answer

  • 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
  • 17,129 Answers

In the first placce buying a used LCD is not a good buy unless you have got additional warranty on the set since the change in the technology and spares are at a faster pace which might not give you value ffor money in case of a failure.
But not to worry I have few suggestions which you can look into only if you are familiar with electronics.
Check the main board after removing the rear panel for DRY SOLDERING which happens in most sets in a perriod of time due to constant heating and cooling of the solder joints. These joints are a major trouble and as you mentioned tapping brought back to life some complaints this is an area of doubt.
SO using a good soldering iron and ONLY if experienced attempt to solder the sections suspected of dry joints in the main board.please take care not to bridge connections to end up with a tampered set.
Look into the sections of the convergence IC, the powerr panel and drive panel, solder and correct.Since the set worked fine this can be the only reason.

Posted on Aug 30, 2010

  • Donald DCruz
    Donald DCruz Aug 30, 2010

    The last part , If the set worked at the place of purchase then why such a failure? So check this out and see .As I said repairing an old set is without guarantee.So before any more money is spend take another opinion and do the checks that I had reccommended.

×

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

Cable


I tried to connect my PC with LCD TV using an HDMI cable.
PC did not detect my TV; however everything works fine with VGA cable. VGA cable is the perfect choice.

Jul 08, 2013 | Toshiba Satellite L305D-S5974 Laptop

1 Answer

My Samsung TV 46" LNT4671F


Hi:
This is due to low voltage getting to the Inverter board or the Inverter board on the bad side is not lighting the lamps. Usually bad capacitors or the power supply and the inverter will cause this symptom. You may want to replace both inverters boards on this model, new models have one inverter board for both sides of the backlight.

Nov 10, 2010 | Samsung Televison & Video

1 Answer

Samsung LCD -no picture/sound from any input source-Cable,DVD,PS3


Use the menu button in the front screen of your tv.Maybe your remote control need a battery.

Jul 24, 2009 | Samsung LE40B650T2 40 in. Full HD Crystal...

1 Answer

Connected samsung dvd vcr combo to samsung lcd series 6 tv via componet cables dvd works fine vcr playing but no picture help me. gordy


all i did was disconnect the component cables and connect using the rca cables and everything worked fine.

Jul 06, 2009 | Samsung Televison & Video

1 Answer

Samsung LCD tv - Turns on and off by itself.


Since you have another TV with the same problem you can try using an antenna(indoor model ok) to see if the cable is causing the problem. If not return TV before the warranty expires.

Mar 03, 2009 | Samsung LN46A850 LCD TV

1 Answer

When I turned the tv on only vertical lines appeared


I talked to a Samsung support helpline and it needs to be taken to a service center for repair.

Mar 02, 2009 | Samsung LN-S3238D 32 in. LCD HDTV

1 Answer

SAMSUNG LCD WONT TUNE INTO NORMAL TV STATIONS


You need to have a licensed antenna repairer out to fix your antenna. Just because your old tv is receiving enough signal to JUST get a picture doesn't mean your new tv will, A new tv doesn't mean you will get a perfect picture if your antenna is dodgy

Dec 30, 2007 | Televison & Video

1 Answer

Pink display


It seems the DV-S5950 has an incompatability with HDMI through Samsung TV's.

I work for an electronics store in Australia, and had same problem when running this DVD player on my Samsung KA40A650.

I tried it on my brothers LA40M51 and the same thing happened. Tried it at work on the A650 display model and same thing again. Then I tried it on the LG LCD that was next to it, and no problems. Also tried the DV-S5950 display model at work and it did the same thing.

It's not a general Yamaha issue, as we bought a new (higher model) Yamaha DVD player and it worked perfectly fine. I also tested the cables, and it wasn't them either.

It seems that that specific model of DVD player from yamaha just doesn't like the HDMI inputs on Samsung TVs...

Nov 26, 2007 | Yamaha DV-S5950 DVD Player

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

73 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73619 Answers

Cindy Wells

Level 3 Expert

5056 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

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

Answer questions

Manuals & User Guides

Loading...