Question about Hitachi Televison & Video

1 Answer

I have a blue streak, but whne blue lamp is removed so is the streak.How do you know id the convergence is broken

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Hitachi Master
  • 3,459 Answers

Please do us a favor and rate this by cliking the thumps up icon located here >>>>>>

Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....



  • 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.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


I have a blue streak, - 7859b01.jpg

e87380c.jpg
69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common 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.
TV I have a blue streak, - 65af323.jpgluid change



69189a5.pngSOLUTION

You 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

Posted on Jun 02, 2011

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

Hi, My Rear Projection has blue streaks running side to side. Any Ideas?


Ur tv have a problem call convergence,it dead.The convergence board require to change 2 STK convergence ICS and some or all it resistors.U know how to do soldering?Have soldering iron,tools and solders.Tries websites like Tvrepairworld.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.

May 27, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

51 philips yellow streak


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
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...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Dec 24, 2009 | Televison & Video

1 Answer

Part of the screen on my sony grand WEGA is showing this up with streaks of fuzzy blue. you can still see the picture, but it has a hue color. What can we do?


Ur convergence it dead,Know how to solders?Buy a convergence kit replaced what in that kit.Tv Repair World.com,Tvrepairkits.com.

Dec 20, 2009 | Televison & Video

1 Answer

Panasonic PT-47WX49E blue convergence problem.


if convergence does not adjust in menu mode could be a defective convergenceic or fuse

Nov 11, 2009 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Blue lamp is not in focus


Try adjusting the convergence. If it won't move see below- (or hitting Magic Focus for some Hitachi’s)

This sounds like convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually charge between $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Oct 05, 2009 | Hitachi 46F500 46" Rear Projection...

1 Answer

Two blue streaks across the screen


sounds like the blue convergence or the Blue CRT needs a coolant change. If the picture apaers 3d its the Convergence. If the color seem abnormal or not true tones its the CRT coolant

Jul 13, 2009 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

51mp392h Blue Convergence Problem


Hello rogeuryder,

This is the one thing that even make TV repair persons shudder. You don't really have a convergence problem in the normal sense. The convergence works. What you have is a misaligned convergence situation which any documentation and or book on TV repair will tell you that at this point manual convergence adjustment is needed and the only thing you will have to do is keep trying to adjust the convergence until you get the center aligned, and then work towards the outer edges using both static (Center) and dynamic (outer edges) convergence techniques.

As this may sound it is; Very Very Tedious.

Here is something that may help you:

http://books.google.com/books?id=ttBofTJM7FEC&pg=PA112&lpg=PA112&dq=static+convergence&source=web&ots=hyUMeeY9s6&sig=DZm27q1aMbLiwKA__fyysBd2yUE&hl=en&sa=X&oi=book_result&resnum=9&ct=result#PPA112,M1

I have used this book when I use to teach TV repair. I hope you discover what I am tried to convey in my e-mail, this is no longer a question of can you fix a TV? It has become a question of do you have the patience to adjust a TV.

Good fortune in doing this, you will succeed if you just take your time and do static convergence first and then do the dynamic convergence with the manual controls. The procedure will be in the service manual.

I hope this helps

Thank you,

Shuttle83

Jul 25, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

PANASONIC 47" WIDESCREEN REAR PROJECTION TV


Go to the convergence menu and see if you can see a clear Blue cross when you try to do a convergence. If the blue looks only like a blob of blue. then the coolant in the blue tube needs replacing. if the blue cross appears as a cross the convergence ICs are probaly weak. I would guess its the coolant thouh that model has a tendancy to trow a blue streak when the coolant is even a little cloudy. let me know if you need more assistance.

Apr 08, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Blue streaks across picture


Can you describe in a little more detail what the symptoms are? Are the streaks thin lines or are they large thick swashes of Blue? Is yur video still visible? Sounds like it may be the blue convergence amps or the resistor tied into the amps. is there anyway you can post a picture of your screen distortion?

Jan 26, 2008 | Pioneer SD-533HD5 53" Rear Projection HDTV

1 Answer

Convergence


You need new convergence amps, and if you dont know what you are doing in the tech menu you could ruing the set. Call a Repairman Delicate soldering is required.

Jul 31, 2007 | Panasonic PT-53WX42 53" Rear Projection...

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

31 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Televison & Video Experts

Jaime Hernandez

Level 3 Expert

2318 Answers

The Knight
The Knight

Level 3 Expert

74211 Answers

matt martin
matt martin

Level 3 Expert

1210 Answers

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

Answer questions

Manuals & User Guides

Loading...