SOURCE: Hitachi 43fdx20b blurred Picture
Yes this is a normal diagnoise. Just about every Tube type projection TV set ever made will one day need these IC's replaced. They are not really that hard to replace but you would need to know how to solder and unsolder on printed circuit boards, know the procedture, and then have a service manual handy to adjust the convergence after yoou replaced the IC's. If the tech works on alot of these types of TV sets's, most likely they could adjust them without having a service manua handy. This repair done by a pro should run you anywhere from 250 on up to 400 bucks depending on who does the repair and where. Good Luck
SOURCE: blue shadow or ghosting on screen
SOURCE: what dose a convergence board look like?
This is what the convergence PWB looks like. Its located on the extreme right side of the chassis looking in from the rear of the set.
SOURCE: Blue line Ghost Image on Panasonic Projection TV
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This set uses two Stk-392-110 convergence IC chips; both need to be replaced along with any of the 2.2. ohm light blue resistors around them; a bad resistor will be white in the middle; You can buy both for less than 13 dollars plus shipping on Ebay.
The chips are located on metal heat sinks with fins and are side by side. They are black(about 2 inches wide by 1 1/2 tall) and should have the STK-392-110 number printed on them in white.
Depending on your level of skill at this kind of work you may be able to do it yourself---if you need step by step instructions contact me---I have them in Microsoft word---start to finish repair including what you will need to do it.
If you are not able to do the repair yourself now is the slow time of year for TV repair shops----It should be fixable right in your home and the repair takes about an hour--I have done hundreds of these sets--some shops charge 300-400 but I do lots of them for 200-250 total cost. Make sure whoever you get changes BOTH of the chips!
Shop around and if they say "needs to go to shop" keep looking; any good tech can do this right in your home.
I do this here for free so if this helps you give me a vote here. If you need direct help contact me.
[email protected]
SOURCE: Sony rear projection widescreen TV. Concave shapes & ghosting
sound like the convergence ics have failed
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