Question about Hitachi 51F500 51" Rear Projection HDTV-Ready Television

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The green is warped on the top left of the screen.

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  • Hitachi Master
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Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs.

To get fixed either call in a local TV repair company or goto sites such as www.TvRepairKits.com to get a repair kit with instructions.

Posted on Sep 24, 2010

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Posted on Jan 02, 2017

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SOURCE: Warped Picture, Separated colors

Each color (red,green & blue) has an amplifier IC (STK-).
When there is a convergence issue,the first step is change both
IC's for reliability. Then check for open fuses devices,usually
pico fuses.Then re-check convergence alignment.......T.

Posted on Oct 23, 2007

  • 35 Answers

SOURCE: top left of screen looks warped as well as bottom.

has the screen been pushed in?
does it look cracked?

the reason the pic looks warped may simply be the magnifier screen (lenticular) behind the outer screen (freznel) has been pushed in giving the distorted look

if so and you are capable it is not a big job

however if either screen is cracked then it is an expensive job

Posted on Oct 13, 2009

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1 Answer

The red and blue projectors aren't aligned with the green projector. It is more sever towards the top of the screen. The green projector also has a curve in it at the top of the screen.


this is called convergence.
the set should normally have a function in the menu to adjust/reset this.
it sound like either the mirror in the tv is warped or the green lamp is out of alignment. if the convergence in the menu doent work then its a service job.

Feb 07, 2010 | Hitachi 61SWX10B 61" Rear Projection...

1 Answer

Top left of screen looks warped as well as bottom. Almost as if something hit the screen, but the kids say it wasnt them. Tried the convergence feature on the setup, but that does not help in any way. Also...


has the screen been pushed in?
does it look cracked?

the reason the pic looks warped may simply be the magnifier screen (lenticular) behind the outer screen (freznel) has been pushed in giving the distorted look

if so and you are capable it is not a big job

however if either screen is cracked then it is an expensive job

Oct 13, 2009 | Televison & Video

1 Answer

My Sony Projection TV middle of the screen curves down on top and curves up on bottom. Picture looks dubble like 3D, screen looks like concaved. Left side of the screen color is light green and blue, right...


This is a very common failure on Projection sets. Its called a convergence problem.
You may have one or more of the following symptoms.
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.
No Audio / No Video - Makes Chirping Sounds
You can see some examples and find a fix here...

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

Sep 26, 2009 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Green is warped


replace both convergence ics.they are on the
right side on heat sinks.stk392-110 is the
part#

Jul 17, 2009 | Hitachi 46F500 46" Rear Projection...

1 Answer

Curved/warped and completely out of convergence Image


Sounds like you need the convergence amplifiers replaced. Cost approx. $300.00 for expert to repair.

Jun 20, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Rear projection tv screen warped


HI, this is typical convergence chip failure. you will need to replace the convergence board in this set asap. this will fix this issue you are experiencing.

May 23, 2009 | Samsung Televison & Video

1 Answer

Sometimes after the my TV is one for 20 mins or so the screen warps, shooting white/pink/green lights across the top and bottom of the screen and placing a horizontal black line at the bottom like hal


Your TV most likely has a problem in the convergence circuits. ( 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.

3dc9420.jpg
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0dcec37.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.

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.

May 19, 2009 | Hitachi 50FX20B 50" Rear Projection...

1 Answer

51MP392H/17 Blue convergence wont move not IC chip


You could have some opened resistors low ohms that are bad go back and ck them around convergence ics.

Nov 20, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Warping


If this is a projection tv then replace convergence amps. and resistors in the area also look for open fuses.

Sep 05, 2007 | Philips 55PP9352 55" Projection Television

2 Answers

Warped Picture, Separated colors


Each color (red,green & blue) has an amplifier IC (STK-).
When there is a convergence issue,the first step is change both
IC's for reliability. Then check for open fuses devices,usually
pico fuses.Then re-check convergence alignment.......T.

Feb 07, 2007 | Philips 60PP9352 60" Rear Projection...

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