Question about RCA HDLP50W151 50" Rear Projection HDTV

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STRAY PIXEL I've got a single point of white light, that seems to be permanent. It hasn't moved, in the 3 1/2 years we've had the set. It did go away, briefly as the warranty was about to expire, then it returned. We just had to replace the main lamp. That went well. I'm wondering what it will take to get rid of that "single point of light".

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When you have a single pixel issue like that, while it can be annoying, the cost out weighs the annoyance. You have a single pixel gone in one of the 3 lcd panels in the optical engine itself. Part # 261589, list price 687.50. You will also need a technician to do the install, as this isn't a simple repair.

Posted on Jun 04, 2008

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Posted on Jan 02, 2017

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Our LG tv has started making a vibrating whistling sound when you first cut it on, you can hear it get faster and faster then slowly goes away.. Also over the past few months I've notices the picture


the picture getting darker means the lamp has aged and u need to replace it another thing u need ti replace the mirrors in the light tunnel of the light engine they have faded secondly the noise means the colour wheel has aged you need to replace it u will have to replace the whole light engine cos the color wheel comes inbuilt the light engine and u will be ok ontact lg dealer in your area

Jul 19, 2013 | Televison & Video

1 Answer

I have a samsung hp5033 plasma for 18 months and is now having pixel problems. 3/4 of the picture is showing fuzzy tiny squares, this started 3 days ago and seems to get worse. I have tried to self...


Hello rqromero2,

I found this on HP's website. I hope it helps

Picture quality problems (such as lines, fuzzy image, or wrong colors)Check the cables and connections:
  1. Make sure that cable connections are securely fastened to the connectors and try reaseating the connectors. If connecting a device using component cables, make sure all three color-coded cables are connected correctly into the corresponding connectors.
  2. Check the condition and length of the cables. Cables that are longer than 3 meters (10 feet), become more susceptible to promoting signal degredation (small dots "sparkling" on the screen and image ghosting). Cables that have been bent or pinched may also cause picture quality problems. Replace the cable or try a different cable type.
    Press the CH button to display a different channel. Picture quality problems on a single channel or on all channels may be caused by the TV station signal (antenna) or the cable signal source.
  3. Make sure that the image quality issue is not coming from your source signal.
    For example: if the image quality issues occur while viewing TV, switch the source to a DVD player to see if the image quality problems go away.
    If selecting a different input source (using the remote control) causes the problem to go away, troubleshoot the source device causing the problem - adjust aerial antennas, call the cable company for assistance, and .
    If a picture quality problem occurs on all sources, the TV or its settings may be the cause of the problem. NOTE: Higher resolution TVs will make it much easier to view signal problems coming from source signals - especially TV signals. For example, if your TV cable company experiences heavy load on their system, you may be able to detect small miscolored squares that briefly scatter across the screen (macro-blocking). On a smaller standard TV, this type of quality problem is much less noticeable on a standard TV, but can become very annoying when viewed with greater detail.
  4. Open OSD to adjust the picture:
    Press the Menu button to open the OSD. Select the Picture menu and adjust the image as needed. 
    If you cannot adjust the TV to fix the problem, reset the settings from the OSD to see if the problem goes away.
  5. Unplug the TV from its power source. With the power cord unplugged, press and hold the power button for five seconds. Turn on the TV. If the image quality problems still exists across all types of signal sources, the TV should be serviced.

If this dosent solve your problem, letus know and we will find another solution,
Dahaka

Jul 22, 2008 | Televison & Video

1 Answer

How to fix my 65" toshiba white pixel problem


Thats caused by the DLP chip. Unfortunately most Toshiba models will end up having to have both the DLP chip and the formatter board replaced at the same time to fix the issue where as other models only require replacing the DLP chip alone to fix the white dots issue

Apr 06, 2013 | Toshiba 65HM167 65" Projection Television

1 Answer

My screen is showing white spots (pixel size) How do get rid of them


On a WS-73735 the white spots usually mean a failing or damaged optical light engine.

It is a major part----Google the model number with "problems" or "light engine" etc.

Jun 10, 2012 | Televison & Video

1 Answer

I have a 3 year old Mitsubishi Model WD-73733 73 inch HDTV that has developed a white dot just a little right an up from the center of the television. What do I do?


I hope this helps please rate that it helped you so i know it did. thanks

  1. Turn off your monitor.
  2. Get yourself a damp cloth, so that you won't scratch the screen.
  3. Apply pressure to the area where the stuck pixel is. Try not to put pressure anywhere else, as this may trigger the creation of more stuck pixels.
  4. While applying pressure, turn on your computer and screen.
  5. Remove pressure and the stuck pixel should be gone.
This works because in a stuck pixel liquid in a subpixel has not spread equally. In combination with the backlight of your screen, this liquid is used to allow different amounts of light to pass through, which creates the different colors.
Should all of these approaches fail to fix your pixel warrior, at least you'll now know it's not simple to fix and the LCD may indeed need to be replaced. But please do let us know if these tips helped you to fix your pixels. In any case, good luck!

if this didnt work try the other four steps located in my tips and tricks page here:
http://www.fixya.com/support/r7629076-fix_dead_or_stuck_pixel_lcd_screen

Jan 04, 2011 | Mitsubishi WD-73733 73" HDTV

1 Answer

I have a tiny white spot showing up on the screen


It's a bad pixel spot. I have a TV that has a dark spot.
Nothing you can do about it.

Jan 06, 2010 | Televison & Video

1 Answer

Tv screen goes black


VS 50801 and VS 60801 mitsubishi models (I have one each) have both had this problem develop after about 10 years of service. The picture simply started "Blinking" off after collapsing to a horizontal line - audio was still present. A simple fix to this problem is to space the yoke connector (7-pin white "Molex-type") away from the neck of the CRT (~1/8 ") . I used a plastic insulator. My 60" set had a problem with the center CRT (green) connector and thye 50" set had the same problem on the connector on the Left (red) yoke connector. The TV senses an open yoke circuit and shuts down all deflection drive. I only want a few more years of service from these sets, otherwise I would resolder the connector on the PCB for a correct and permanent solution.

Oct 23, 2009 | Televison & Video

1 Answer

Just got a used tv its a panasonic PT-51HX408 and cant seem to get the colors to align perfect they will move just seems as theres a shadow so it looks as double vision. Also greenish color on lower left...


1.) This set uses two STK 392-110 convergence chips--they are black, 2 1/2 inches wide, about 1 1/2 inches tall with 18 pins each; they are located on two metal heat sinks side by side. You can buy both chips for about 12 dollars plus shipping on Ebay.

2.) If you can do this repair yourself I have start to finish step by step instructions telling what you will need and how to do the whole job. Let me know if you want the instructions and I can email them to you---etower.766@netzero.net

3.) I have done hundreds of these sets and usually it takes about an hour---if you are not able to do the repair-shop around--this is the slow time of year for TV repair shops---MAKE SURE WHOEVER YOU GET TO DO IT REPLACES BOTH CHIPS or you will have the same trouble again soon. Most shops charge 300-400 for this repair but I have done hundreds of them here for 200-250--any good tech can do the job right in your home.

4.) The reason the chips fail is the back of them is metal and a heat sink compound (white grease) dries out after several years and one of the chips reaches a point where it cannot move the heat fast enough.

5.) There are also some light blue resistors in front of the chips that need to be looked at/tested--if any are discolored (white in the middle) they need to be replaced--most of them in this set are 2.2 ohm(marked on them) and 2 watt rated.

6.) If you have any questions let me know and if you want the instructions email me. This set is a set that a do it yourself person can do if they have directions and some skill at soldering.

7.) I do this here for free so if this has helped you please take a minute and give me a vote here.


Contact me if you have any questions or need more information.

SD TECH

Sep 06, 2009 | Panasonic PT-51HX40 51" Rear Projection...

1 Answer

I have an LCD TV. All of a sudden the picture colour has gone wierd. The best way to describe it is that it is similar to either a colour negative or one of those scientific 'false colour' images. This...


TFTs can produce a wide array of colors, but it takes an enormous number of transistors to make up a display, and a problem with any one of them creates a defective pixel on the screen. Typically this shows up as a bright spot on a dark background, caused by a damaged TFT failing to turn off a pixel. Most active matrix displays contain a few bad pixels, but a few bad pixels are not going to have much of an impact on the overall picture.
The properties of liquid crystal material can create problems with viewing angle effects, causing the image to darken, disappear, or reverse the dark and light tones when the viewer is not directly in front of the display (kind of like looking at the negative of a photo). The light bulbs make LCDs heavier than the plasma TVs (though they are still lightweights compared to CRT televisions.
Benefits of LCD TVs include a picture that can't burn in and doesn't deteriorate over time. Because of their flat-panel nature, placement options are plentiful, optimizing the cool factor over standard TVs

Apr 30, 2008 | Televison & Video

2 Answers

Green shadows surrounding bright whites


finally a consumer that gives us plenty of info :)
sounds like an overdriven green tube, the only thing you can try is to find the G2/Focus block assembly, either behind front speaker grill or remove back of set and look for a black box approximately 5"X5" , this box will have 6 philips type adjustment screws(plastic) 3 are for focus, do NOT adjust these,
the other 3 are marked "screen" the center screen adjustment screw is for green, turn it VERY slowly counterclockwise while the set is running and pray that your problem dis-appears, be advised that this is a HIGH VOLTAGE device so one hand in your back pocket the other hand turns the screwdriver, if the problem does not go away you have a poor green tube, good luck, sorry I can`t give you the exact location of the G2/Focus block, manufacturers move them to different places every year.

Nov 29, 2007 | Mitsubishi WS-55809 55" Rear Projection...

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