I'm getting a smoky yellowish stain on the lower left side of my.

Short answer is no, if the screen is plastic and the chemical attacks the plastic. If it is too much liquid and it seeps between any layers, it could evaporate over time, but you will likely have a noticeable dry stain forever.

For you and everyone reading this, never spray or apply any liquid to any TV, monitor, laptop, or cell phone screen directly, I think it says that in the owners manual. Always apply a light amount of TV screen cleaner spray to a microfiber cloth and then lightly clean the screen. DO NOT use anything with alcohol, ammonia, glass cleaner types, baby wipes, pre-moistened wipes of any type unless it specifically states it's for LCD monitors and TV's. If you or the manufacturer apply more cleaner to the wipe or cloth than necessary, blot excess cleaner with a dry paper towel so that the liquid doesn't run or drip when applied to the screen during cleaning.

YES USUALLY A SING OF LEFT BEHIND FABRIC SOFTNER

The tint you are seenig is most likely the lcd panels developing thermal damage due to the projector being improperly shut down. The projector should always be shut down using the remote or the power button on top of the projector. OR if this projector is ceiling mounted it could have blocked ventilation or if used in a smoky environment it could be smoke stained.

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Try a mild abrasive cleanser like Bon Ami or Soft Scrub and wipe clean.  

Hitachi: phone us soon as you can thank you

Those are the symptoms when the power supply is giving up.
Unfortunately there are not many replacement service parts around to swap the power supply assembly, but It will need to be fix to the component level instead.
I service these power supplies.
Let me know if you need more assistance.

Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929
Or send to ptscorp.com
http://www.hdtvoice.com/voice/index.php?s=
good luck
please mark the post with a fixya

Try one or all of the cleaners listed below to remove the stain. Hope this helps you.

• Oxygen bleach
• Rubbing alcohol
• White vinegar
• Baking soda
• Hydrogen peroxide
• Acetone
• Paint thinner

Steps to Remove the Stain:

1. Laundry soap dyes are usually more difficult to remove than other colors.² However, oxygen bleach, such as Oxi-Clean, can sometimes clean away even the red stains. Sprinkle the powder on a damp sponge and scrub away the stain.
2. Soak a cotton ball with rubbing alcohol and wipe away the detergent stain. If the stain is not immediately lifted, allow the alcohol to soak for several minutes.
3. Vinegar is effective on many kinds of stains. Make a solution of one part vinegar in two parts water and sponge the vinegar onto the stain.
4. Baking soda can be effective for removing detergents from appliance surfaces. Sprinkle baking soda on a damp sponge and clean the stain until removed.
5. Combine equal parts of 3% hydrogen peroxide with water and sponge the stain with the solution.
6. Soak a cloth with acetone nail polish remover and use it to wipe off the stain. If the stain does not wipe off right away, it may help to lay the cloth over the stain to soak for a few minutes.
7. As a last resort, wipe paint thinner on the stain. Paint thinner can remove most dye stains. However, you may want to test this on a small, hidden area first to be sure the paint thinner won't damage the lacquer on the appliance or cause any other adverse effects.
8. Once you have removed the stain, wash the area with soapy water to remove any residue from the cleaning solution.

most of the time you wont get these types of stain out but sometimes they do come out. what i use is monster screen clean. if it doesnt come out you will need to replace the sreen. they usuall run from 75 dollars to 150