Screen dims and flickers/blurs with horizontal lines through it...
I've had my Panasonic PT-50LC14 50" LCD for 3 years or so, and in the last year or so I've noticed periods where the picture would get some slight blurring with horizontal lines through it. Initially I chalked it up to just needing to warm up, or possibly some condensation from AC nearby. In recent months it has gotten much worse, and there are some days when it gets so bad that the screen is very dark, with bright primary color bleeds, and it's basically unuseable for watching TV or playing video games. I have been able to determine, however, that this problem affects all of the component inputs, but NOT the HDMI input--watching DVD's through that input is perfectly fine. Any ideas?
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PT-50LD54 is an LCD rear projection TV with a consumable bulb that wears out normally after 2-5 years of use.
Most likely you need a bulb. That is first step in any troubleshooting for that tv. Check out Panasonic Gallery to identify lamp and replacement bulb.
Changing bulb involves removing the lamp assembly and replacing the bulb in the lamp assembly. Like doing a puzzle. Requires philips screwdriver, pliers and patience. Don't have jam on your fingers when you do it.
The 3 blinks symptom is for busted convergence IC,you must replaced this IC in order that will works better again.STK 392-150ICs and it's associated resistor,this resistor automatically chagne value,can caused truoble even though you change the ICs.If you bring this to a service center they cost you $600 to $700,but if you buy the repair kit you can save more,don't wory it is very easy because there is intallation guide including in the repair kit. Feel free to ask whatever the result... click the link for sample picture guide step by step installation;
I have the same problem and was told that I needed a new convergance chip. They told me who deals in the problems where I live, (TV Repairman) It will cost me 300 for a six year chip and 350 for a life time chip! I was told by the repairman that these chip only last up to 6 years if they are not lifetime. I see alot of this same problem going on right now. These tv were manufactured in 2001, but no one was ever told that these chip would need to be replaced in so few years after spending all that money on the TV. Pasonic would not tell me the price of the chip nor how to get one,were very unwilling to help with the problem other than telling me who do go to locally, so you would have to go thru a tv service where you are.