Question about Hitachi 50V500 50 in. HD-Ready LCD Television

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Yellow color on projector tv

Hi ,
I have a panasonic HDTV rear projector. It works fine except it is showing more yellow color. Seems like yellow is dominating the picture. Tried all color setting no go. I cleaned the projector lens they were pretty dirty. Still image clear but yellowish.

Thanks

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 9 Answers

SOURCE: Double vision with a lot of yellow color

This looks like bad convergance. If only one color is affected it may be one of the convergance IC's. It is best to replace both IC's though. If you change the IC's then check the resistors next to the IC's. Use the exact part numbers. STK392-110 IC's can be upgraded to a STK392-180 for better heat strength. (That is why they blow, too much heat generated. Use a liberal amount of Silicone Heat sink compound.) A shorted IC will usually blow a resistor. If a bad resistor that isn't changed it will look like the new chip is bad. Make sure that you use the same wattage and the exact value (Ohms). Your convergance will not be right with an off value resistor. This info works for about any other brand Projo TV. Cheers, Lee http://www.crazycomputers.com

Posted on Jul 28, 2007

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BMW Rider

Larry Eastman

  • 232 Answers

SOURCE: yellowish tint on all channels

Hi, bad news guys, from your brief description you have a bad light engine, you both need to have a tech verify this but thats most likely what is causing your symptom. This is NOT a layperson repair, you`ll need a tech, BMW Rider

Posted on Dec 12, 2007

Felix

  • 11 Answers

SOURCE: tv discoloration

I had whole redish/pinkish screen on my 50v500 starting a few days ago, then I read through each of the threads on this site for the samilar problems on my model. I found TVtechmaniac's solution (pasted below) solved my problem. Thank you TVtechmaniac!

Enter the I2C Service Menu, be sure the power is OFF.
1. On the front control panel, press and hold the INPUT button.
2. Then press the POWER button for two seconds.
3. You may keep the INPUT button depressed until you see the OSD with the Service Menu displayed.
4. If you don't see the service menu, please repeat Process making sure you wait until the Power blinking LED stops.
5. Execute the Memory Initialize operation after the adjustment values have been written on a sheet of paper. Highlight “MEMORY INTI”, arrow to the right and hold the button to the right (approx 5 sec.) until a check mark appears in the box. This activates the Memory Initialization.

6. After the Memory initialize operation has finished (10~15 sec, the channel will revert to CH 3.) the pink image symptom should be fixed.
7. Write back the adjustment values from your notes to their respective adjustment parameters in the adjustment mode. (In other words, set the Data Values back to the the Data values written down before the Memory Initialization procedure). NOTE: Make sure the SELECT Button is pressed on remote after every change to the values. Failure to do so will result in the data values not being changed.
8. Exit I2C menu. Press exit repeatedly until you go back to the normal picture.
9. Turn the set off-on and Confirm the picture remains in a good condition.
BE SURE TO COPY DOWN DATA SETTINGS BEFORE INITIALIZING I2C SETTINGS

Posted on Aug 31, 2008

Anonymous

  • 10 Answers

SOURCE: philips LCD HDTV -- color problems

hi
try a reset

Posted on Jan 02, 2009

Anthony Gonzales

  • 267 Answers

SOURCE: picture color washed out

have authorized servicer do a memory intialization this is ussually for a pinkish or reddish picture

Posted on Apr 24, 2009

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1 Answer

I have a Toshiba 51h83. Everything works fine except there is an issue where the colors are slightly lighter on both the left and right sides of the screen.


this is normal with rear projection tv's its from long usage when the tv isnt always in full screen mode. you can sometimes fix this by replacing the bulb/ or the color board for the projector. also you can replace the screen as it seems like it may also be do to image burn in if it wasnt always in full screen mode. (did this for my uncles Mitsubishi projection tv)

let me know if that helps!

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Hello, I would take it to a TV repair place, they will charge around $50 and let you know what the problem is with it. this is your cheapest way out, it you want to keep it. If you chose to take it please give me a fixya rateing. Thanks, Farren

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1 Answer

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Sounds like the polarizing film is burnt on one of the three colored lenses that are located next to the projector itself. In order to fix this this it is necessary to remove the ballast and projector units, then disassemble the projector housing to expose the lenses. there are green, blue and vermillion (reddish) lenses. the vermillion lense is the one that causes the yellow tint after it has been damaged.
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I am currently undergoing this repair myself, thus far we have disassembled the television and are waiting on new vermillion polarizing film in order to complete the reapir. Good Luck, it isn't too difficult. Just take lots of digital camera pics (for screw location and sizing) and you should be fine.

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1 Answer

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It appears that your light engine is broken, I have the same problem. Have you recently changed the bulb with a non-panasonic part bought on the internet. I did this and think thats what caused the problem. I believe the new bulb burn at a higher temp thus causing damage to the Light engine filters

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1 Answer

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1 Answer

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