Question about Toshiba 40H80 40" Rear Projection Television

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Convergence problem tosiba 40H80Hi

Hi can anyone help i fell on to my tv and when we put it on everyone was green we have had someone out to look at it and they have told us this is caused by wear and tear.I read on here somewhere that a bang to the tv can cause this is this true. also how long should the engineer be at your home to find this problem, as i have seen on here people saying it can take upto 45mins to warm up. Thank you.

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  • kay ledsham Feb 04, 2007

    yes falling on to the tv can cause this problem.

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You may have jarred the sockets of the red and blue loose on the red and blue picture tubes. Especially if the picture was good before the fall

Posted on Jan 02, 2008

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RCA R56WH78 Green LED Blinking


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Strange convergence problem on my Philips projection TV


The only real test is to try to adjust the convergence for each color...Red and Blue...If you cant move both colors in all directions - up - down - left - right...then your Tv has a convergence problem. Try in both 480 and 1080...if it can't be adjusted - replace the parts. I just did mine the other day

Jul 28, 2009 | Philips Televison & Video

1 Answer

Red blue green bowed looks like 3d no converg. menu.........


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

May 09, 2009 | Panasonic PT-51HX42 51" Rear Projection...

1 Answer

KP-61HS30 Sony TV turn pink and green text is bowed


Hi,

Check out CONVERGENCE GALLERY . If you see your symptoms you have a problem in your convergence amplifier circuits. Typical Sony Convergence repair requires disassembly for replacement of 2 ICs, sometimes a fuse or 2, then TV is like new.

It is much more complicated than changing batteries on your remote. Many consumers try unsuccessfully to do a convergence repair. I recommend finding someone competent to do it for a reasonable price. Typical repair shop charges may be from $400 to $650.

If you are in the Calgary area, call me. More reasonable rates.

easyab

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1 Answer

RCA 52


ok go into setup menu.... go to convergence.. try to adjust convergence .. does the crosshair move up and down side to side... if not then you might hqve q poblem with convergence power supply if they move then u might have s setup issue

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AUSTRALIAN PARTS


the convergence board has nothing to do with tuning of tv, the convergence board put three colour gun (red, green, blue) to work with each other, else you get three image, of red , green,  blue or mixture of all as seperate image, the convergence board for american tv and Australian tv is possibly the same what you check to see the board  part number is the same you possibly need to see if the convergence board has got the memory i.c. if that is the case, you need to tune you t.v reset the channel etc good luck.
need more help let me know.
    

Oct 09, 2007 | Samsung HLR5067WX 50" Rear Projection HDTV

1 Answer

Hitachi 43FDX01B Green Line Not Alligned


If you slap the set on the side and the colors shift and dont line up, it is most likely that one of your convergence IC's has cracked solder joints. It is also possible that the IC has burned out. The convergence IC's will have to be resoldered and possibly replaced, and that should be done by someone with experience in repairing and realigning convergence circuits in projection TV's.

Aug 19, 2007 | Hitachi 43FDX01B TV

3 Answers

My red and green colors separated


You have to go into your menu and into setup then look for convergence, don't know exactly where since the TV isn't in fornt of me. But once you get there, there should be a bund of "+" all the ones thare are in color you need to change to white. Depending on the TV you would use our left or right arrow keys, enter or ok. Hope this helps.

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