Question about Toshiba 50H82 50" Rear Projection Television

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What do convergence chips look like

Can any explain how convergence chips look like its a toshiba big screen tv not a lcd

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What do convergence chips look like - f37d630.jpg
This is what a convergence IC looks like.

Posted on Oct 19, 2009

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Has anyone actually successfully fixed their own toshiba with one of the solutions (convergence chip...etc.)?


Are you talking about CRT TV which requires Convergence circuits or LCD falt panel TV which does not use electron beams?
Please clarify the question and the problem you are having.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Parts: http://interliquidparts.com/

Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.

Aug 22, 2011 | Toshiba REGZA 46RV530U LCD TV

1 Answer

Toshiba big screen Model TZ50V60 Convergence Issue-Chips Replaced


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. 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, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

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

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 29, 2010 | Toshiba TZ50V61 50" Rear Projection...

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Toshiba Big Screen Tv Has Bad Colors


this is a rear projection tv not lcd the color is off because the convergance chips are bad take the board out that has the tow stand up chips attached to heatsinks out order the stk number search for on google then take a om meter check all the resistors aroung the chips replace them also you must be a excellent soilder person or a tech to install and remove these chips

Oct 19, 2009 | Toshiba 32 AV 500 PG 82cm 32 in. LCD TV

1 Answer

Picture is distorted and horizontal lines have appeared across the screen.


one of the two convergance chips are failing
they cost around 20.00 to 40.00 etch

Jun 24, 2009 | Toshiba REGZA 46RV530U LCD TV

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No audio ,double image bow with redish color at bottom of screen ,on my phillips big screen tv model # 55p8342


Your TV most likely a convergence 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.
Here are some photos of convergence problems.

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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.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jun 18, 2009 | Televison & Video

1 Answer

Toshiba 43HX70 convergence problem


One or both of the STK convergence chips have probably failed.

I can give you guidance on this if you are confident to do the repair. I had the same problem with my Tosh 40WH08B and after replacing these chips it works like new.

May 21, 2009 | Toshiba Televison & Video

1 Answer

Convergence will not adjust


You need to replace Both of your STK ICs these are your convergence ics They are Big Black chips with STK on them for Example STK392-110s ect......... you will also need heat sink silicon to put on back of new ones If stks are 110s use 180s better chips. For Parts go to www.electronix.com or Call 1-800-223-3205 if ics are 020s use 040s if not use same number as on ICs.

Dec 27, 2008 | Toshiba TZ43V61 43" Rear Projection...

1 Answer

Toshiba big screen The tv is like double exposed . I have a toshiba big screen tv and I have double images in red and green. How do I fix this problem?


This is likely your convergence ICs(chips). If you can bump it then the ICs (chips) are still ok, it just needs resoldering.
my company charges $300-400 for the full repair (replacing ICs, full realignment plus cleaning)
if you can find a company that will resolder for you, it could cost $100-200 maybe. if you are a handy person with soldering skills, you could repair yourself. i can instruct if needed, but convergence IC soldering requires decent soldering skills. you will find the ICs on the largest heatsink in the tv. the part number starts with STK. if you replace them, check the resistors in front of them and replace accordingly. most toshiba will blow up to 3 fuses (f850, f851, f852)

Dec 08, 2008 | Televison & Video

1 Answer

Toshiba projection TV Flickers


You may have bad convergence chips in the set. I have worked on some with similar problems and replacing the convergence chips was the solution. Good luck and I hope this has helped.
Ed
NC Electronic
Mills, Wyoming

Feb 18, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

3-D Screen


You need to replace the convergence IC`s and check for any bad fuses and burned resistors near the chips. The convergence chips are mounted to the big aluminum heat sinks.

Nov 12, 2007 | Toshiba 51H84 51" Rear Projection...

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