Question about Zenith IQB50M90W 50" Rear Projection Television
Have zenith 52 rear projection HD tv... tv is only 2 years old...screen is suddenly blurry on left side getting double like image but right side of screen is pretty much fine...what happened and how do i fix it?
Ur convergence is dead,need convergence kit.
U know how to solder right?Tries these websites for convergence kit.Tv Repair World.com,Shopjimmy.com,Ebay.com or Partstore.com
Posted on Sep 25, 2009
Testimonial: "thanks for the advice. i have ordered a kit and hope that this fixes the problem. thanks again"
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Posted on Jan 02, 2017
IS the screen white retrace lines ? Have you looked into the CRT lenses while they are on with a signal applied through the input to see if an image is displayed in the lens lens of the crt? Let me know what the answer is to these two questions and we will go to the next level.
Posted on Apr 10, 2008
you will need to replace both convergence ICs they are STK392-110 you will also need six resistors (2) 2.2 ohm 1watt
(2) 1.5 ohm 1watt, (1) 3.3 ohm 1watt and (1) 1.8 ohm 1watt.
You can get replacemnet ICs and resistors at te following link with free instalation instructions. Here is the link.
Posted on Jul 17, 2008
sounds as if your convergence needs to be set. either through the menu on the tv or remote you need to get to the convergence set screen and you need to line up the crosshairs. this usually happens when the tv is moved or bumped.
Posted on Dec 31, 2008
If you have a CONVERGENCE problem and it will not adjust---the two STK-392-150 Chips this set uses need to both be replaced and the set adjusted with the original remote control.
You can, if you are able to do the repair, buy a pair of chips for less than 14 dollars plus shipping on Ebay.
If you cannot do the repair--shop around your area--most shops are going to charge 300 or more for this kind of repair.
When you consider the cost of the parts--if you can do it or know someone who can--you can save the set and a lot of money--This repair can easily be done right in your home in about 1 hour--I know as I have done hundreds of them---did two today.
The chips (with the back off of the set) should be on two metal heat sinks on the board on the far left---they will be facing the front of the set.
All that is required to get at them is to remove all the plugs on that board and the screws that hold it in and tilt it up so the bottom of the board is in view---you unsolder both chips (about 18 pins each) and remove the 2 screws that hold each to a heat sink.
With 2 new chips you put heat sink compound on the back of each--it is a white grease to move heat quickly from the chip to the metal, and solder both chips in----put the board back down and all the plugs back(I usually mark all of them so I know where they go) and turn the set on and see what you have...
Most of the time this repairs the set--go into the customer menu and adjust the convergence and you are ready for another 5-8 years of life---this is the normal lifespan of these chips.
If you need assistance or have questions let me know--I am here to help people.
If this information helped you, rate this solution as I do this here for free.
Posted on Nov 08, 2009
SOURCE: tv picture blurry, not clear
The LXI or Sears brand used philips TV's. These sets are known for bad coolant fluid. In between the picture tube and their lenses is a layer of clear coolant. Over time the coolant breaks down and causes the picture to become blurry. This can be a complicated repair involving removal of the picture tubes and lenses. Have a repair shop check it for you. Thanks for using fixya.
Posted on Dec 14, 2009
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