I want the best picture from my 50" LG plasma tv, and I just replaced my 47" LCD LG tv with this plasma and I am not impressed at all compared to my LCD. I guess my question is what a are the best picture settings in the picture menu on screen for a slightly dim room, I also have blu-ray, PS3, and HDTV. HELP>>>>>>>

Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

It sounds like a buffer board fault. If you wish to get more details, check http://electronicshelponline.blogspot.com/ this link. It has screen shots to many faulty stages of plasma displays. Compare them to that of yours, and make sure about which board will have the fault. Pull up older posts by its left side bar.

None.All Plasma tvs designs are alway have high heat output and consume alot more A/C power energy than any other tvs designs out there.Tvs like CRT-tube tvs,DLP tvs -Projection tubes and projection lamps tvs,LCD-flourescent tubes tvs as Liquid crystal display screen tvs.All these tvs designs are all good tvs designs to buy but the pictures display and screen lighting and the sharpness of the pictures never have and able to compare high enough qualities as a display picture on the screen output to a Plasma screen tvs,until now LED-tvs are LCD and LED screen display combine to make it better and brighter technologies and now are good enough to compare to a Plasma screen panel tv.So buy a LED tv will get less heat output and comsume less A/C power energy too and it is good enough pictures qualities too.To compare too as a plasma screen panel tvs output.

User manual: http://www.retrevo.com/support/LG-42LG30-TVs-manual/id/15220dj498/t/2/

http://www.fixya.com/support/r4873371-fixing_out_range_format_not_supported

See page 38~40 for what the TV can do when it is used for PC display.
From user manual:

37/42/47/52LG50, 32/37/42/47/52LG60,

32/42/47/52LG70, 42/47LGX, 47LG90,

50/60PG60, 50/60PG70: To get the the best

picture quality, adjust the PC graphics card to
1920x1080.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
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.

Ur tv LCD inverter board it dead.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter board for the replacement.It a long board in shape.

Check the fuses on the ysus & zsus boards. Are any fuses on boards open . Disconect power cabels to ysus board first {board on left} . put tv on . if the light is green the ysus board must be replaced.

Yeah dont buy LCD over hyped ****!! I buy only plasma's better blacks & better picture! Try the Panasonic THX plasma & read the reviews on it! I own 2 plasma one new & one 5 yrs old! Also own one Sony LCD...LOL..it's in the kids room! Even Sony's best XBR $5000 plus 50" tv does not compare to a Panny THX!

I suggest you guys take your TV's into a repair shop like Sears or Best Buy... The main reason most plasmas go dark is because of decay, but I don't think this is the case. Because what you describe is similar to what happens in LCD's when their back light goes out. Although you can open up and repair the back light your self in a LCD, I would not advise you to do so for a Plasma, because of the hazardous chemicals used in the plasma display plus the fact that plasmas don't use back lighting. And 2 years is way to soon for decay to be a factor. So more than likely a circuit shorted out and the TV has to be opened up to be repaired.

Check the menu for ,probly under settings called convergence,, if it has it ,,that will make it right,, it realines the colors,,soposed to do it periodically,, or when you move the .tv. well ,,good luck with that

Hav 50 inch lg no pic but got sound wtf how do i fix it an there r 5 flashes b4 green light stayes on at the start