Question about Toshiba 42HP84 42 in. Plasma HDTV

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Red, green, and blue rectangular "chads" or squares across top of screen

These rectangles (which look like chads from a voting machine) are red, blue and green in color and are in 3 to 4 rows across the top of the screen. Each one is approximately 1/2 inch in size standing vertically.

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Hi there, this is easy thing to fix. Its LDV cable. This is the Cable which goes from the main board on to the screen. Un plug the cable from the screen side., then push the cable back. Make sure cable sits in .

This will sort all the problems with the picture,i.e colour problem , picutre squring up and many more things.


Regards Sam

Posted on Nov 21, 2007

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Posted on Jan 02, 2017

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Display has red tint across entire screen. Could it be the bulb? If so, is that still available? Approximate cost?


two possible solutions----either a problem on the small circuit board that is connected to the RED picture tube OR the red screen control is turned up too high. These sets have a small square block with RED,Green, Blue screen controls(same place also has red, green, blue Focus controls) if you remove the speaker grill you will find an inspection plate made of masionite---the focus/screen block is visable behind it----get a flashlight and look carefully at the block---one row of 3 plastic shafts is Focus(don't touch those) the other 3 are Screens(you should see R, G, B marked) go to a blank video input(one with nothing attached) and turn the RED SCREEN CONTROL JUST SLIGHTLY TO THE LEFT UNTIL the red goes away.

Aug 06, 2009 | Mitsubishi WS-65613 65" Rear Projection...

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What to do when you only have Green on a CRT Projection TV.


If you have a picture, but only in green on a 3 crt projection TV, I would try turning up the drive for the red and blue guns. They have probably changed over time and red and blue have lost drive and need a boost. Green makes up 70 percent of the picture compared to red and blue so the drive would not have to drop much to lose red and green but still have green. Keep in mind that this does mean that the CRTs are dying and may not have too much time left.

To turn up the drives first remove the back cover on the bottom half of the machine. Be very careful as you will have to work on this unit live. Do not touch anything other than what I tell you and keep one hand in your pocket whenever possible.

First look at the space above the main circuit board. Somewhere across the beam supporting the CRTs you will see a square box with 6 controls (shafts). You can locate the box if you follow the wires from the flyback to the box. The flyback is located on the power board and produces the high voltage. It will have 4 large red rubber wires coming out of it. Three go to the focus divider block (the box in question) then they go on to the crts (red, green, blue).

Once you locate the focus divider look at it closely. The focus controls are on top and the drives are on the bottom. They should be marked red, green and blue. You want to turn up the red and blue. Tune a picture with as much black as possible. While watching it turn up the red until you see a red tint or streak then turn down until it just disappears. Do the same with the blue. You may want to touch up the green also for good color balance.

If the set is working OK and the CRTs have enough drive left, your picture should look normal.

Thanks for using FixYa.

hardrocko

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1995 Ford Windstar Speaker Coding Scheme.


www.installer.com as speaker schematics

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1 Answer

Green cruve line


Good Day;
Suspect Convergence IC's STK4274, part Number 2003191. Replace all three IK04(red), IK05(green), IK06(blue).
Good Luck, big IRISH.

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1 Answer

EMachines E19T5W Flat Panel Monitor - keeps blinking red, green, blue white lines


On the monitor below the screen has these fine pink and green lines blinking across the screen all the time on my laptop. Can you tell me how to fix it or solve this problem?

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LG Rear projection tv help... Red, Blue and Green horizntal line through screen.


The complaint may be dry solderig or yoke ,horizontal or vertical oscilator

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1 Answer

Philips 50P8341 50 in. Rear Projection Television most of the color is red


Usually if you remove the speaker grill in front there is a convergence panel that can be carefully removed. If you look inside you should see a small rectangular block with six controls. They are labelled focus and screen, and red, blue and green. Adjust only the screen controls very carefully and slowly. I would recommend reducing the red slightly brfore raising the green and then blue until the picture looks acceptable. Be sure to center the on screen controls before starting.

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Sony KP-51WS500


does it have blue video image?

Sep 29, 2007 | Sony KP-51WS500 51" Rear Projection...

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