Question about Sony KP-43HT20 43" Rear Projection HDTV-Ready Television

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Heavy red lines all over

I keep having this ongoing problem w.this tv set for the past week..i have been reading about convergences and ic's and other things that i have no idea about..i am curious to know if this is a convergence problem..seems to be that but i have no idea for all i am is a viewer of the TV not a fixer of them..i have had the TV off for about 4 days now..i just plugged it in and no lines for about 1 minute then red lines reappear..does anyone know how much this would be to replace or just buy a new TV or what possibly the problem might be..i don't want to get ripped off..i went on a website that sells parts for these items but i have no idea what i am should be looking for..i appreciate very very much so if anyone can help me w.this..how much is a convergance ic and or what the hell is it..

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Red lines running from left to right across the screen? or parallel
to say a persons body? the first is retrace lines the second is convergence, the back has to come off the set regardless, a layperson can attempt to fix the retrace by turning down the "screen control", I would not advise you to try & replace the convergence circuit.

Posted on Nov 26, 2007

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JVC AV-48WP30 convergence drifting after IC replacement


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 16, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

I have a sony rear projection tv, it has red lines


color convergence is acting up on your sony, usually the convergence power ic's are to blame. replacing both is recommended(mounted on heavy looking metal dissipators)

Jul 31, 2009 | Sony Televison & Video

2 Answers

Convergence


If the convergence can't be adjusted with the remote are if a tech comes out and he can't adjust it from the back of the set or the SAM replace the SSM part number 313503710091 that's where the convergence adjustments are done.

Aug 19, 2008 | Philips 60PP9202 60" Rear Projection...

1 Answer

Panasonic 47wx53 covergence issues


Is the power indicator flashing three times? If so the Ics have shorted shutting the set down. You will need two STK392-110 convergence ICs. You can get replacement ICs at the following link with free installation instructions.
http://servicemanuals.vstore.ca/

Aug 18, 2008 | Panasonic PT-47WX53 47" Rear Projection...

3 Answers

Can't control red convergence on VS-45607


The STKs are three channel ICs they each control horizontal and vertical of one color the third channel controls part of green and the other half of green is controled by the other ICs third channel. Its customary for the Ics to fail and only have one channel bad in the IC. However its recomended to change both because of the bad Ic having green it can actually weaken the other IC and that one will fail shortly.

Aug 03, 2008 | Mitsubishi VS-45607 45" Rear Projection...

1 Answer

Hitachi 42" TV


This is a problem with the convergence circuit. If you can solder, try resoldering the pins on the convergence ICs. If that fails to resolve the problem, replace the ICs. These ICs are large and black, attached to a heat sink and are marked STKxxx.

Keep us posted on your progress.
Dan

Jun 19, 2008 | Hitachi 43FDX01B TV

5 Answers

Colors don't line up


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.

Apr 08, 2008 | Philips 46PP9302 46" Rear Projection...

1 Answer

Have a panasonic 47" HDL projection tv..under 5 years old model # pt-47wx53g, chassis Ap 825,manufactured August 2003 Purchased Oct. 2003. Have cable service..TV works fine until 2 weeks ago. Screen...


3 blinks means the convergence circuits are shutting the set down. Usually the convergence ICs will take care of the problem, but I would recommend getting the service manual from the following link, as they will provide you free support to help you diagnose why it wont start as usually the convergence ICs wont prevent a set from powering up, unless another component in the convergence circuit has failed.
http://servicemanuals.vstore.ca/

Mar 24, 2008 | Televison & Video

2 Answers

Sony KP-53S75 Red convergence problem


Your TV most likely has one of two 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.

Sep 17, 2007 | Sony KP-53S75 53" Rear Projection...

1 Answer

Verticle lines


I am woundering if the repair folks did the proper job and used the right IC's as alot of NON authorized shops will use the cheap aftermarket repalcement ICs and not even use any new heat sink compound. 4 repairs in 5 years is very excessive! I would not have called the same shop(s) to do the repairs. Put on the test scren on the TV set and see if the convergence is off. If it is make the shop replace them again for free or ask for your money back. Man what a rippoff that is. Good Luck and keep us informed of your progress with the shop and the repair.

Mar 26, 2007 | JVC AV-48WP30 48" Rear Projection...

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