Question about Toshiba 40RV525U 40 in. LCD TV

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I cant get the color right and it looks like the picture is in grid mode

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Check color system or make it auto system color

Posted on Nov 06, 2010

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TV showing color pixels but no picture and no sound


Well at least you didn't pay for the TV. Your panel is defective. Cheaper to buy a TV than to fix.

Mar 20, 2013 | Televison & Video

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The colours are no longer lining up. On captions you can see the three seperate colours. The auto focus does not fix. How do you enter service mode to adjust grid lines?


U can't do any grid lines adjustments for this problems,the tv problems it is having are known as a convergence pictures problems,it is dead.The tv have any colors lines like R,G,B mis alignments,tv have any colors shadows pictures or have a 3D pictures look alike?Yes,than the tv convergence board it is dead for the tv to causes all of these convergence pictures problems.The tv convergence board must have to be repair like replacing 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence pictures problems.The tvs shops will cost like $300-350 for parts and labors.

Sep 21, 2011 | Toshiba 57H83 TV

1 Answer

How i adjust horizontal size and vertical size


To answer your concern, all you have to do is to change the setting of your aspect ratio on your TV.

Here is my suggested way to procede:


1. Apply 1080i signal, which should produce an oversized HD image on ColorStream1or 2.
2. Select an HD channel that is broadcasting standard 4:3 image, not wide screen.
3. Switch to the Service Mode ( Please refer to the above links). In the Service mode, press channel up/down to find the Adjustment parameters needed for the following steps.

4. Adjust HIT with volume up/down control for the image height to 22.5 inches.

6. Adjust WID for image width of 30 inches, (22.5*4/3)
7. Adjust HPOS to center the image.
8. Adjust PARA and TRAP to minimize geometric distortion.
9. Switch into Convergence mode and Adjust VLIN to get equally spaced horizontal grid lines.
10. Measure the length of the central grid lines and note the number of horizontal and vertical grid lines. This information is used to create an overlay grid.
11. Create the overlay grid on 40x25 x0.003 inch clear Acetate sheet, which you can get at the Art Supply store for under $2. Draw the grid with a fine line erasable pen. Draw vertical and horizontal lines through the center of the sheet so that the lengths are the same as the central grid lines. Now draw the grid so that it has the same number of lines as the convergence grid but are equally spaced, with the outer ones at the ends of the central lines.
12. Cut off about 1/4 inch from the right side of the sheet so that the sheet can lay flat against the screen, which is slightly less than 40 inches.
13. Put a reference mark on the TV frame 2.5 inches down from the upper left side of the screen.
14. Place the overlay on the screen so that the upper edge lines up with the reference mark. The overlay sticks by electrostatic attraction.
15. Use convergence controls to remove grid distortion and converge grid colors. Refer to the Anamorphic link for details.
16. Enjoy 1080i.

Other Comments:
I didn't realize I could create the overlay grid before placing the Acetate sheet on the TV screen, until I finished drawing the grid with the sheet placed on the screen. I added grid lines as called for in the procedure. I'm sure this method took much longer no only to draw the lines but some of them were difficult to see.

Part way through the convergence procedure, I became concerned that the image width was off since I did my screen adjustment with wide screen image. Thus, I decided to repeat that step with a 4:3 screen.

I confirmed the need to press 7 often to save results since after I adjusted one grid color without it, I accidentally hit a key that switched me out of convergence mode and when I switched back, all settings were gone.

Another mistake I made was not realizing that the cursor color determines which grid gets moved.


May 13, 2011 | Toshiba 32AV500U 32 in. LCD HDTV

2 Answers

Tv works but picture color is off and its kinda dark looking there is no duel image so i know the color tubes are ok but there is a problem it almost looks like someone took a magnet to it


You have two problems, you have a convergence problem, the convergence board needs repair, and the other problem is the coolant needs change in the guns, (CRT's) and you are looking at 500 on repairs, you would be better off getting a new LCD.

Mar 02, 2011 | Philips 43P8341 43" Rear Projection...

1 Answer

There is a wave/bow in the bottom and top of the picture on the screen of my Toshiba 70HX50. When I am in the grid screen in the service mode it looks like the center is 'bowed' out. How do I adjust this...


Projection sets have two very common problems.

The first common problem is convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

May 15, 2010 | Toshiba 43H70 43" Rear Projection...

1 Answer

Center bow on picture top and bottom with 1" black showing


Projection TV2_bing.gif sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - TV2_bing.gif makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 06, 2010 | Toshiba TN55X81 55" Rear Projection...

1 Answer

I have the lg ku990 and left it in my pocket for some reason a grid menu has come up and i cant get it off ??? i just want my profile picture not this grid ! Many thanks


Hi there

You can just move the grid away by scrolling under the grid area(with your finger or stylus) left or right. The grid will move out of sight to the left or right.
Hope that sorts it out for you.

Sep 09, 2008 | LG KU990 Viewty

1 Answer

Pictures look like view through a venetian blind


i think the grid lines have been enabled.

and so disable it to having the problem solved

Apr 29, 2008 | Olympus SP-350 Digital Camera

1 Answer

Adjusting convergence grid


i correct grid will look all white. all colors aligned up.
you should be able to move the lines with the remote. and you cant burn anything out by doing convergence.

Jan 27, 2008 | Samsung HC-P4752W 47" Rear Projection...

3 Answers

PT5499HD Covergence Akai


Yes, you have a size problem you have horizontal and vertical size. Either its' in the service mode or somewhere on the set, with this set it's probably in menu. Must be set too high. I will look for menu codes! Is this an Akai or Panasonic set?

Oct 04, 2007 | Panasonic PT-47WX49 47" Rear Projection...

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