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Have a blue arc from the mid section down of screen and also have a yellow haze and shadow around objects. Attempted touch focus red and green were fine but blue line was broken.
Hi, convergence circuit has failed, IC`s and probably 1 or 2 precision resistors will have to be changed, not really something you can fix if your not an electronics tech, BMW Rider
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Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.
The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs. To get fixed either call in a local TV repair company or goto sites such as www.TvRepairKits.comto get a repair kit with instructions.
If the ghosting is like a 3D effect its your convergence ICs , but if its like a blue Halo around objects that usually means your CRT coolant has congealed and will need replacement. The blue is the first tube to congeal for some reason, followed by green. Red seems to be not quite as prone to this. It is a normal occurrence n sets about 4 years old to need the coolant changed.
hi,
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The most common problem for this complaint is contaminatedcoolantfor the picture tubes. If you look
directly into the three picture tubes you will probably see a haze in the blue
one. This is fairly common but requires aknowledgeableservice man to take care of.
TV shows large red spot in middle of tv when dark show are on, you can see it more. Now blue spots on upper right side too. Spend way to much on this tv to have these kinds of problems only after 3 yrs.
I am slightly confused about the model of the television, because a 46F500 is a rear projection set that doesn't have a lamp. It has 3 picture tubes and I have a few of them in my shop right now that have the problem you reported. What we do to this set when it develops a convergence issue is to check each resistor around the convergence chips for discoloration, and replace any of them that have changed in value, along with the STK392-150 ic's. If you don't have an ohm meter and solder/desolder equiptment, you can usually get a shop to do this repair for 150.00 to 350.00. Parts will be 50.00 and labor , the rest, depending on the quality of repair shop that you use. Good luck, Russmann.
The blue filter is burnt out. A very common problem in Zenith DLPs.
There are 3 color filters, 1 blue (a pinkish color), 1 green (a grayish
brown) and 1 red (it is red) they give you your colors for you picture.
This is a simple fix.
Blue convergence IC bad...have both IC's changed..insist on
STK394-160E upgrade part # CZ 01341 Hitachi brand.....Original part is STK392-110......Also, check B+ feed resistors next to
convergence amp IC's for burn / damage...after rebuild, press magic focus.......................T.
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