Question about Toshiba 50H81 50" Rear Projection Television

1 Answer

Ghost images in blue. convergance adjustment wont move it back. it's only the blue and only to the right

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Toshiba Master
  • 14,553 Answers

This set uses two of the STK-392-110 and you need to replace both.

If will not adjust this is what is wrong. Total parts cost if you can do it yourself will be under 25 dollars.

Hard part is getting at the parts and being able to solder.

Can you do this if I assist you/

If this helps you rate this solution as very helpful as I do this here for free.

SD TECH

Posted on Aug 26, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Ghosting or a 3D image. A yellow and blue ghosting or shadowing image. Looks much like the top picture in the "picture ghosting image" entry. Is this a convergence problem?


Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.

Aug 09, 2011 | Toshiba 50HX70 50" Rear Projection...

1 Answer

Red and blue ghosting,


The most likely cause is shorted convergence chips and possibly a few pico fuses.

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,Pioneer2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with 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 - 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

You can see some more examples and find a fix herebb0cf99.png http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jul 12, 2009 | LG RU-52SZ51D 52" Rear Projection...

1 Answer

Ghosting


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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

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.

Mar 20, 2009 | Philips 60PP9352 60" Rear Projection...

1 Answer

Blue Ghosting Help Needed


Good Day, jhazelwd;
From what you say it sounds like the Convergence IC's have failed. Part number 267P150010, STK392-570, replace both IC's. They are on the middle board secured to a large heat sink.
Good Luck, big IRISH.

Aug 24, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Blue Convergence


Blue convergence IC is bad, but change both as red wont be far behind they are cheap about 10.00 ea at the following link.
http://electronix.com/

Jan 14, 2008 | Toshiba TN55X81 55" Rear Projection...

1 Answer

Blue Ghost


You need new convergence ICs . They cost about 10.00 each you will need two. They are located on a large aluminum heat sink with an STK number stamped on them. They will have to be soldered in. If you can solder you will be able to do this repair yourself. Let me know if you need ay additional Info.

Nov 14, 2007 | Sony KP-53S65 53" Rear Projection...

1 Answer

Convergence problem


sounds like convergence amps bad

Oct 23, 2007 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Convergence


Typical convergence IC falure. Need to replace both at once as if ones down now, a few months down the road another one will be down. This is not a consumer or end user replacable part. As its all soldered into place and your going to need to do a master convergence alighnment when they bare replaced.

Sep 02, 2006 | Philips 60P8342 60" Rear Projection...

Not finding what you are looking for?
Toshiba 50H81 50" Rear Projection Television Logo

Related Topics:

29 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74383 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jaime Hernandez

Level 3 Expert

2318 Answers

Are you a Toshiba Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...