Question about Hitachi 57F500 57" Rear Projection HDTV-Ready Television

1 Answer

Spots on screen

As I was cleaning the screen I noticed 3 very small spots that at frist looked as if they dropplets from the cleaner. The largest is about 1.5mm in diameter the smallest .5 mm dia. Right side of screen from center to the upper right corner. My guess is that there is something on the mirror? Any suggestions, Thanks in advance

Posted by on

  • djerryc Dec 09, 2007

    The spots do appear to be within the sandwich. Is removing the outer fresnal something I can do as a low tech guy? I don't understand the PS, eg fluids? cans? I use screen cleaner for laptops, not windex.....Thanks Bill

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 934 Answers

If it looks fluid it's more likely something like windex or whatever you were using to clean the outer fresnal screen with got between the fresnal and lenticular screens. There are actually two screens there sandwiched together...
Bill

Posted on Dec 09, 2007

  • William Rayburn
    William Rayburn Dec 09, 2007

    PS:: Couls also be contaminated EG fluids in one of the cans..

  • William Rayburn
    William Rayburn Dec 10, 2007

    Yes, the face of the unit can be removed - just pay close attention to how the unit comes apart.. I believe on most Hitachi Tvs the lower panel pops off and then you remove some screws just below the screen... The screen frame then slides up but be careful there are a grouping of wires that will still be attahed to the button area... Then, from the back of the screen you should be able to see how the panels come out and then just unsandwich them... reverse the process for re-assembly...

    Hope this helps!

    Bill



    PS. When you're in that area you can take a flashlight and shine right down into each of the cans to check to see how clear they are... Use windex and paper towel on the mirror and lens of each can...

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Westinghouse UHD 4K has dark spots on screen. They look like grease spots. Not noticeable until lighter colors are shown on them. I've powered off and I've cleaned surface.


The LCD panel is faulty. Some times its Normal to have small spots of the panel.
If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

Nov 26, 2016 | Westinghouse Televison & Video

3 Answers

How do you clean the dust out of the projector, there are particles that look like small white stars on the black areas and black stars on the white areas. Is this dust?


If you focus the image on a screen up close to the projector and notice small rectangular black and white spots, then you have pixel failures.

Jul 11, 2011 | Optoma TX542 Projector

1 Answer

Touchscreen doesnt work


Hello

I don't want to you to do hard reset & lose all your data so I would advice you look closer at the screen & noticed the spots if it looks like water spots & peeled the screen back. It might be noticed that the glue from around the screen actually leaked onto the screen, so you would damp one end of a q-tip & wipe the glue off then dry it with the other end. Then turn the phone back on and the screen should work fine. Try cleaning the screen before doing a hard reset or paying for a replacement phone. It'll save you time & headache.

THANK YOU FOR VISITING FIXYA

Mar 01, 2011 | HTC HD2 Smartphone

1 Answer

Discoloration on ceramic top


Hi- High temps make for tricky maintenance of glass or ceramic tops. The heat element must pass its heat energy through the glass or ceramic and into the pan. Water droplets will steam away, while a spatter of oil or even a few grains of sugar will melt and burn to a tough film of carbon on the surface. The obvious preventitive measures of checking pan bottoms thoroughly before contact with clean (yes- very clean) cooktop surface mean most spots may be small, they can be annoying to look at and tough to remove. My best cleaning results for these spots came from using a VERY small amount of OVEN cleaner (use gloves) on a paper towel placed on spot for a few minutes. A clean, new razor blade may be used to scrape off film. Hope this helps. - Thanks- ED

Feb 25, 2010 | Kitchen Ranges

1 Answer

RU -44, small "pink" spot on screen.


Green is missing from the area where you see the pink (actually magenta) spot. This might be due to a large amount of dirt on the green lens. It may be due to damage to the face of the green picture tube. You need to remove the front screen so you can look into the lens and determine that.

Depending on the make and model of TV, the screen may be held on by snap fasteners and come loose when you pull on the plastic bezel surrounding it. Or the bezel may pull off to reveal brackets screwed into the cabinet that secure the screen. Or there may be a trim strip under the screen that pulls off to reveal screws. Remove those and the screen will swing up and off.

Once you can see the lenses, clean them with a soft rag and glass cleaner. With the set on, look down into the lens and you can see the face of the picture tube. If you see a dark spot on the face, the tube is damaged and would need to be replaced

Apr 22, 2009 | LG RU-44SZ61 44" Rear Projection...

1 Answer

Faint white spots on macbook pro lcd screen


If the spots remain in the same place I'm sorry to say no. Be careful what you clean the screen with. I'm a fan of a warm wet damp only rag. Using alcohol or other cleaners may damage the surface. There are also cleaners available at local stores. You don't need anti-static on an LCD display. The spots can be from pressure on the display applied at some point even if that pressure happens when closing or transpoting your laptop.There is no way to fix it.

Sep 18, 2008 | Computers & Internet

1 Answer

Water leakage front passanger under panel


sound like you evaporitor for the AC. there is a hose that is plugged that needs to be cleaned so the water can run to the ground.

Sep 09, 2008 | 2004 Mitsubishi Endeavor

2 Answers

Looks like dust spots behind screen


I had the same problem and had a tech check it out.
It turned out to be dust on lens and mirror.
cleaned them and good as new.
Ihope this works for you.

Dec 29, 2007 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Screen spot


Since you have a black spot,you need to look at the mirror or inside screen. If it were a certain color, like purple or yellow, for instance, I would suggest a lens or picture tube, but, since it is black in one spot, I would suspect debris in those areas.

Dec 12, 2006 | Toshiba 51H84 51" Rear Projection...

Not finding what you are looking for?
Hitachi 57F500 57" Rear Projection HDTV-Ready Television Logo

Related Topics:

97 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Televison & Video Experts

Jaime Hernandez

Level 3 Expert

2336 Answers

The Knight
The Knight

Level 3 Expert

75767 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a Hitachi Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...