We had this same problem with our 60+ inch Hitachi. Except our tv had a red hue in the center of the tv before we replaced the bulb and then the blue hue joined the red one after the replacement. It ended up that our light engine was defective (which is an extremely common problem in Hitachi tvs). You should read through some of the forums on here to see if you can find your solution exactly (that is how I figured out my problem was our light engine). You might have the light engine problem also, but I am not sure since you don't have a red hue. Hitachi pays for the replacement light engine part (worth $1200). I just finished the process and now my tv is like new. If you want me to go more in-depth with the light engine repair process let me know.
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Sounds like the LCD Panel, if under warranty contact Samsung warranty for service. If out of warranty, watch it until you tire of it then replace the unit as the cost of a new panel is more than a new unit.
Hello To replace the CCFL lamps, you have to disassemble the LCD module. It is a very skilled work, as CCFL lamms are very brittle. and should be handled carefully. It will be best to get this set repaired by any expereinced service technician.
You need to eliminate the lamp door (blue) switch from the equation. Wrap the wire (blue/white) around in for the moment to lock it in an up position. Also, have a look at your lamp ballast (see picture). Look to see if the capacitor is swollen on top. If it is, change the ballast and power supply.
Thanks for the photos, it looks like an internal adjustment is required to the ramp generator which controls the sequence for the screen to refresh itself from a previous image to a new image. This is a precise setting & also a software update may be necessary to cure the problem. These settings are on the Y-Sutain board & need to be accurate.If this procedure does not cure the problem then the screen will need replacing. As it will out of warranty, it would be best to contact a local repair centre & ask for an estimate to try & set these adjustments for you.
A plasma screen uses thousands of tiny fluorescent bulbs in different colours (red blue and green) to produce a picture. Just like standard house hold fluro lamps, these tiny bulbs use starters to turn them on and off. As there are so many bulbs in the panel and therefore starters, the panel has a number of "starter controllers". These controllers can control anywhere from a quarter up to half of the screen. If a controller dies, it takes out it's segment of the screen. Unfortunately, it sounds as if this is what has happened in the case of your LG - this is also common in NEC and Fujitsu panels. Althought these controllers can be fixed, it usually takes more time and money than it's worth- unless you have it under warranty in which case the manufacturer will just replace it. Sorry top be the bearer of bad news. hope it helps
No. I would suspect it being a Optical Block issue. I is not a pretty repair not to mention the cost factor. If you could get in touch with Hitachi Customer Service they could lead you to s service facility that could comfirm what I think.