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

3 Answers

Green and Purple Color with Double Image

The only color left on my 51F500 is green and purple. And the top quarter of the screen is double image or like ghost image. Ran through the trouble shooting guide in the owner's manual and everything checks out there. Please advise.

Posted by on

  • 1 more comment 
  • camk Dec 15, 2008

    Same problem with ours.....Watching coronation street when it happened this morning.....double vision and color is off.....have
    extended warranty the guy is to be calling us...i will post what the
    problem was when it is fixed....

  • Anonymous Jan 02, 2009

    i have green and purple line through top part of tv

  • walshandco3 Apr 30, 2009

    Half the screen is green and purple, I'm not a repair type person, is it difficult to fix on your own?

×

3 Answers

  • 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

Solution:

Your TV has a convergence problem. Here are some of the most common symptoms.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in but stationary.
Here is a quick test....
Using your original remote go-to the tv settings then goto the convergence or magic focus 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.
You can get a repair kit that includes all the parts from www.TvRepairKits.com.
They have put together a kit for the Hitachi TV sets.
The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself. Its a fairly easy fix on the Hitachi sets.

Posted on Jan 29, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

This is exactly what was wrong but its all better now

Posted on Dec 20, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 233 Answers

The color has gone crazy on you because your convergence IC's have gone bad.
These operate at a very high temp, and usually only last 4-5 years. 
If you remove the back of the set, you will want to look for the BIGGEST heatsink in there, on that heatsink, you will see 2 lage IC's , probably STK392-110, or STK392-150's you can go on ebay to order the new ones, but MAKE SURE they are Genuine SANYO IC's and not counterfiet cheapies. the cheap ones may only last 2 months..
You will also need some "Heat transfer paste" - you can pick this up at radio shack.
Once you remove the old IC's, test all the large resistors near them.. pull one side of the resistor out of the board so you can check it out of circuit. they will usually have the value in Ohms, printed directly on the resistor, but you may have to use the resistor color code to find out what value they are....However, usually if there is any damage, the resistor will look like it has been HOT or fried. replace the IC's and any bad resistors, and you should be good to go.
If after replacing the IC's and any defective resistors, the convergence is still bad, make sure to use a multimeter to check ALL fuses on the boards, --- sometimes when the IC's go, they will take out a fuse to the convergence power supply. If you find any bad fuses, replace them accordingly!
Hope that helps!

Posted on Dec 20, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Purple and Green haze on television image


Do you have any speakers near the TV, that aren't shielded... ?That's kinda what it sounds like to me.

Apr 10, 2009 | Panasonic PT-53TW53 53" Rear Projection...

2 Answers

Double Image Red and Green


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


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 email and they will put one together for you. Their kits includes photo instruction guides, original Sanyo STK chips, convergence resistors, pico fuses, etc.

Feb 08, 2009 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

My T.V. has a funny color .. more of double viewing with purple and green what can I do to fix this?


Your set has a problem with its convergence circuitry. In many cases this can be simply failure of solder connections to the output integrated circuits due to the heat they generate, and resoldering them fixes the trouble. This is a repair you might be able to try for yourself if you have experience with electronic soldering. Or there might be component failure which would require the equipment to isolate and replace the bad parts, which is a repair level best left to professionals. In some cases where the set has digital convergence, the failure might be in the computer control portion. This means the repair might range from only a very few dollars in parts to quite a lot of dollars, plus whatever labor rate the servicer charges. If you aren't looking for an excuse to replace the set, getting an estimate on a professional repair would be the best suggestion.

Degaussing is deliberately applying a magnetic field to the face of a picture tube. This is done to neutralize the effect of other magnetic fields that can cause color distortion. Degaussing isn't done in projection sets because they have separate tubes for each color.

Dec 16, 2008 | Toshiba 50H81 50" Rear Projection...

2 Answers

My T.V. has a funny color .. more of double viewing with purple and green what can I do to fix this?


Degaussing means to demagnify. Not applicable with a projection tv. You have a severe convergence problem. Either a component failure, a speaker or other powerful magnet in very close proximity or someone figured out how to adjust (or misadjust) it.

Dec 31, 2007 | Projection Televisions

1 Answer

Green....purple....colors


If you are technically savvy and you can solder.....requires
chassis pull...replacement of convergence IC's...mounted on large heatsinks on board to the right looking in from rear....If
you want help........Let me know................T.

Dec 27, 2007 | Panasonic PT-53WX53 53" Rear Projection...

1 Answer

My toshiba tn61x81 projection tv


have you tried the convergence option in the menu? i believe it is under "picture". this allows for nine different sections of the screen to be adjusted when projection images get out of whack.

Oct 20, 2007 | Toshiba TN61X81 61" Rear Projection...

Not finding what you are looking for?
Hitachi 51F500 51" Rear Projection HDTV-Ready Television Logo

344 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Hitachi Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...