Ever since we purchased our tv, we have not gotten a crisp picture. It seems that there is always a haze around the picture. We do not have cable, but have attached an HD Tuner and HD antena. Neither fixed the problem. Any suggestions?
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Your old TV was most likely a SD (Standard Definition) TV. SD signals look better on SD TV sets than they do on HD TV sets. This is normal. If you will, imagine having a tiny wallet photo reprinted as an 8"x10" photo. The image would be grainy and not have the crispness of the original. This is the same principle. Your SD source is being blown up to fill an HD screen. Once you add HD to your programming, the old TV will be forgotten. I hope this was helpful.
Search for "coolant change projection tv", there are several good links including where to buy the coolant. I did mine yesterday and it's like having a new TV again, all for about $20 and 3 hours time.
You can get the entire coolant replacement kit at the following link. which contains 48 ounces of coolant and an instructional CD that explains the process step by step with pictures. Its listed under their repair kit catagory.
Here is the link. http://servicemanuals.vstore.ca/
Your CRT coolant needs to be changed. Thats whats giving you the dim picture. You can also clean the projection mirror on the inside this often helps. But the coolant will need to be changed to get back the bright crisp picture. Hope this helps.
You have bad CRT Fluid, the green and Blue tube need the fluid changed. This is a messy and possibly dangerous to the tv proposition, you will want to call someone to change the fluid, you will probably spend $450+ for the repair, but it should look pretty good when done, possibly better than it has looked in years.
throw the set away!the part required to repair the set is the optical engine.Zenith made alot of these sets with defective engine assemblies in wich the lcd filters burn,which cannot be replaced.The labor is also silly.Theunitrequires a complete teardown for replacment.You could buy a very nice new set for the repair bill