Question about Hitachi Televison & Video
This one has me stumped. You gave me directions to change the CRT fluid in my Magnavox and it is great. This Hitachi seems to be different. I already bought the fluid thinking it was as easy as my other tv. I can't find any screws to remove the cap to replace the fluid. This TV has never given us any problems until now. Believe it or not, it is 25 years old and in a beautiful Oak cabinet. Can you PLEASE tell me where the caps are located?
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Posted on Jan 02, 2017
SOURCE: tv picture
Unit has a bad optics block (light engine). Rebuilt engines available for around $350.00. I have seen this sympton several times and I am sure this is the problem.
Posted on Mar 11, 2008
I want you to do a simple visual check of something that will tell me what the problem may be.
Go to a channel that is in black and white--old movie and tell me what color the screen/picture is.
You can also turn the COLOR in the customer menu all the way off and look that way.
What we are trying to see here is if TRACKING is set correctly or has changed. If the screen is somewhat to medium reddish it may be an adjustment outside of the customer menu.
Let me know what you find--I have seen several of these where the black and white picture was somewhat red--the idea is it should be as close to black and white as possible--if red is the predominant background color the picture will look reddish.
If this has helped and you confirm the red instead of black and white picture--I can tell you a easy way to adjust this.
If this information told you something you did not know and helps you rate this solution as I do this here for free.
Posted on Dec 23, 2009
Testimonial: "Got it! Your explanation is very clear and I'll give it a shot right now. I'll let you know how it turns out. Thanks again!"
To remove the protection screen and lens from my Hitachi model 53SDX89BA:
1) Remove the speaker cover from the bottom. It is attached by velcro.
2) Remove the 4 screws on 4 plastic tabs on the bottom of the screen frame.
3) Remove the 4 screws on the 4 metal tabs on the bottom beneath the screen frame.
4) Pry the bottom corners loose with a wide blade screw driver and work both sides of the screen frame away from the case from the bottom up. CAUTION: The top does not snap away as the sides do. When the sides are loose let the screen frame hang down vertical and lift the screen frame straight up.
5) The protection screen and the lens will come off together.
When reinstalling the screen frame perform the steps in reverse. Be careful when resnapping the frame back onto the case - there are two small wooden support blocks on the bottom. Don't try to force the frame back on until you are sure the bottom of the frame clears these block. You may find it easier just to remove them temporarily until the frame is reattached.
Posted on Jun 09, 2010
Your TV most likely has one of two possible problems.
Problem #1: Convergence Chip Failure ( common problem )
Here are some of the most common symptoms and example photos of a convergence problem
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.
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 note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.
Problem #2 CRT Fluid is Cloudy
Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.
Picture of a set that needs the fluid changed.
TV set after fluid change
What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc
Posted on Dec 15, 2010
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