Question about Flat Panel Televisions
New sony kdl 40s3000 seems to show large pixelation on reg channels, and what I call a Banding effect, or layering of the solid mostly dark colors in conjunction with the large pixels. Not evident whn playing dvds. and not much on HDTV channels though it is there. Have tried hdmi n component cables with same results. hve not found any reviews on this model with this problem so wondering if it may be related to Time Warner cable lines.
I had the same problem and solved it with a factory reset. hold menu button dowm for 10 seconds and it will alow you to reset all the colors.
Posted on Jan 01, 2009
Changing this requires a change of the tuner. There is nothing inside the set that can make this change. There are external systems that can do this, but they are expensive (multiple $100s).
Bottom line is that this would require a change in the internals of the set.
Hope this helps.
Posted on Mar 16, 2009
There is a component(s) in the video processor path, or in the screen address matrix that has become thermo sensitive. This can be service by someone who is familiar with and has the tools and set-up to service your model of set.
I would suggest to call Sony service to arrange to take it in for an estimate. Because of the complexity of servicing this set, they may give an estimate to exchange the defective board(s).
The cost of servicing your set when out of warranty will not be cheap.
Posted on Oct 11, 2009
Hi there..first off PUT A FAN AS CLOSE TO THE TV AS POSSIBLE...Your units powerboard is overheating..the fan will slow this down big time(once the tv goes all the way out you have a useless tv till it gets repaired!), I have a Poloroid 32" lcd on "life-support" it was doing the same thing when I bought it cheap ( I buy them and fix them), I put a box fan on low behind it and it has not shut off on its own for 3 weeks now....Now to explain how to diagnose and fix this problem............
The caps (capacitors) in the powerboard are going out. This is a very common problem in all class and price ranges of modern lcd and plasma tv's/ monitor's. I don't know if this problem has been like this for awhile or it just started, but either way, if the tv takes an abnormal amount of time to "warm" up then it most likely will go out all the way sometime in the (near) future. If you have a tiny bit of will and knowledge ypou can open the unit and get to the print board. Examine this for "popped" capacitors, they will have a buldging top instead of a flat one. Im gonna try to include a pic of them here, if i can get it this time, I've tried bfore lol. But you can google image a "popped" or "bad" capacitor and you would be able, with ease, to diagnose if you have any of these. Usually only one or two. Radioshack sells capacitors (couple anyway) for $1.59 each. MAKE SURE the replacement is of the SAME voltage or HIGHER, or you will be right back replacing those 2. Every capacitor has a negative pole marked with an (-) on the side of the capacitor(by one of the "legs", always puit the negative (-) "leg" of the new capacitor in the same hole in the printboard as where the previous negative (-) "leg" of the capacitor was ( a capacitor with the negative and positive "legs" put in backwards will result in the new piece "popping" as sson as you turn it on!!) make sure the "uf" rating (for example the most common popped capacitor is the 1000 uf) is the same as the one you are replacing. I needed 1000 uf, 105 c and 26v (volt) ratings for the 1 capacitor I needed to replace to fix my LG 19" lcd panel monitor I found by the trash that the light came on off, but it didn't come on. I replaced that capacitor with ; 1000uf, 85 c and 36 v (volts0...It works fine eventhough the volts and the temperature rating (36v and 85c) was not the same as the (26v(volt) and 105c ) capacitor I removed !! Further, I've replaced capacitors that had the celcius rating of 105 with the only ones Radioshack had, namely 85 c(celsius) they have been working great, but I'm not sure about any effect, nor have I heard or read (yet?) about that making an urgent difference. Many threads that I've read people have done the same, so we should be ok (my stuff has been running good for a while longer then most brand new ones!.............(all these ratings ; 'uf ' and 'c' etc are on the side of the capacitor you are replacing and on the side of the ones you are replacing them with)...For all this all you need is the cheapest solder gun u can find (I bought one for $7.99 at Radioshack), a camera (to take pictures as you go to remember how to reassemble the unit) and, once you have your materials, 20 minutes to replace 2 or 3 capacitors and you are good to go...Most monitors and tvs (lcd/plasma) I've seen you have to lay flat on the ground/bed/blanket etc, to work on (screen side down). Usually there are 2 or 3 screws (or a few more) to remove, then you will have to carefully (its comes off easily most times)insert a flat screwdriver inbetween the casing and gently pry it up as you go around the whole frame. Sometimes you have to remove the little washer arouind the cable input orso, just be gentle and you cant go wrong. Once insidet here will be a box with wires running to the sides etc...unplug, gently, these wires and open the box. Inside you will find 2 or 3 circuitboards, check them all for "popped" capacitors, replace, reassemble and plug it in....Have fun becoming an overnight tv mechanic lol!
If this helped you (or not )please rate, thank you!
Posted on Feb 03, 2010
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