Question about Flat Panel Televisions
We bought an LG 42" LCD tv about a week ago (model no 42LC55) but the picture is always slightly blurred. We can't seem to get a crystal clear picture, not even when watching a DVD. Does anyone know how to fix the picture quality? Thanks
Get the professional, although this won't be an expensive fix... You likely have one or more caps in the vertical circuit that are going bad... A cap acts like a battery in a circuit taking on voltage and releasing it at an even rate. When they go bad their ESR (equivilent series resistance) rises and the cap takes longer to reach it's op temp and work properly...
A tech with an ESR meter will easily find and repair this one...
no other issues only a minor problem..
Posted on Dec 05, 2007
Hi - I have some suggestions. The following factors effect picture quality:
1. Source (because LCD TVs have much higher picture quality than traditional CRT "Tube" TVs, the worse your source material, the worse it looks on a LCD TV).
DVD and Sky/Digital TV should look excellent on this TV when connected with a good quality Scart lead (nothing too expensive, but a Oxygen Free Copper Gold lead may help) directly into one of the TV's Scart inputs (avoid using "switching" boxes for multiple equipment).
Also, bear in mind that this is a HUGE screen (40 inches I think) and will REALLY show up bad source material.
The best advice I can give is, if you have HD-ready equipment use HDMI connections for everything (ideally with an HD-uplscaling DVD player which will "improve" the quality of standard DVDs on the TV - I recommend models by Philips) and check that you are in "Movie" or "Cinema" mode on the TV.
Make sure that all of your equipment, like your Sky digibox, is set to 16:9 mode (not 4:3) aswell to preserve the true widescreen aspect ratio.
Hope that helps!
Posted on Dec 31, 2008
i had the same problem! i just changed my scart leads to some quality gold ones, this made the picture a lot crisper . hope this helps :0)
Posted on Apr 30, 2009
As it is new, take it back for replacement. If you bought in online, have it replaced as it may have been damaged in transit.
Don't bother to try and repair it, it is not right.
Hope that helps.
Posted on Nov 27, 2010
Tips for a great answer:
32/42/47/52LG70, 42/47LGX, 47LG90,
50/60PG60, 50/60PG70: To get the the best
picture quality, adjust the PC graphics card to
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
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