Question about Toshiba 53H71 53 in. Rear Projection Television

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Pioneer SDP 4386K Convergence problem

I have a Pioneer SDP 4386K, the convergence will not adjust, If I replace the convergence board will this fix the problem? I found refurbed boards for $138.00 online which would be worth it to me

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  • phreddrick Mar 01, 2009

    I have a similar problem, but only the blue convergence won't work.

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Go to this link these guys will help,,,they saved me thousands,,,they walked me through the steps...it might just two $11.00 pico fuses ,,talk to these guys before changing the board

https://www.vstore.ca/secure/servicemanuals.vstore.ca/login.php?osCsid=706ca60e6e5566fecf596a9bfbec9a92

Posted on Mar 22, 2009

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It has color at the bottom of the screen almost halfway up. I need to know how much to fix.


Tv have colors lines R,G,B mis alignments,have colors shadows or 3D pictures?Yes?Mean ur tv have a dead convergence board to causes this problems known as a tv convergence picture problems.The tv convergence board must have to be fixed 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 picture problems.The tvs shops will cost u like $300-350 for parts and labors.

Aug 06, 2011 | Pioneer SD-P50A5-K 50" Rear Projection...

2 Answers

Unable to adjust red convergence much red shadowing


Not able to do auto or manual convergence adjustment.The tv convergence board is dead.The tv convergence board,must be replacing 2 STK convergence ICS and some or all of it resistors too.To fix the convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Mar 02, 2011 | Philips 60PP9202 60" Rear Projection...

1 Answer

Pioneer PRO 510HD - 53"


Boards can run 250 - 400.00 on average. You may be better off just repairing the board parts for around 65.00

See below

Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from 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.


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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

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

Jan 29, 2011 | Pioneer PRO-530HD 53" Rear Projection...

1 Answer

Blue gun adjustment does not move blue line in menu convergence function. Any way to adjust or fix?


No.Fix.Tv have dead parts on the tv convergence board.Tv colors lines R,G,B mis alignment,can't move any colors lines.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead on the tv convergence board.These parts,must be replaced on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Oct 28, 2010 | Toshiba 61H70 61" Rear Projection...

4 Answers

Blue will not focus causing "shadows". Magic focus will not solve the problem.


This tv have a problems call convergence,it dead.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts must be replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.

Jun 17, 2010 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

Replace a convergence chip on a tv


This is not specific to your set/model but should give you a good general idea.
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Oct 29, 2009 | Pioneer Televison & Video

1 Answer

No convergence


Projection TV2_bing.gif 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.

Convergence problems are very common on all Projection TV sets including Sony, Samsung2_bing.gif, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith2_bing.gif, and others. You can get a convergenece repair kit from the link below.

Common Symptoms include....
  • Screen looks 3D2_bing.gif
  • 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 - TV may also make a chirping noise.
Here are some photos of convergence problems.

49abec3.jpg
f0add3d.jpg


Here is a quick test....

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

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right.

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

Note: If you TV has as flash2_bing.gif focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a solution

93a1209.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from www.TvRepairKits.com

Aug 04, 2008 | RCA HD61LPW175 61" Rear Projection HDTV

1 Answer

T.V. Convergence


John, im sorry to have to tell you, you have the normal convergence break down, and any adjustment is not going to fix the problem. The Convergence ICs are bad in this set, and both should be replaced at once, as you do not want to pay another repair price 6 months down the road. In these sets there are no user replaceable parts, unless you know how to work on solid state printed circuit boards and understand about the TV safety factors involved. Good Luck Please do not forget to rate this thread.

Dec 09, 2006 | Pioneer PRO-99 TV

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