My samsung tv the picture is showing all kind of dotty colours especially in white back grounds

SOURCE: black & white picture

IF YOU JUST PURCHASED IT, THEN CALL 1-800-SAMSUNG FOR WARRANTY REPAIR

SOURCE: I have a 32in Samsung LCD tv. When i plug in the

I presume you have a manual.
The one thing i can think of is change the "picture mode" to "normal", this might solve it.

Bud Martin

• 11361 Answers
• Posted on Jul 11, 2011

SOURCE: I have samsung LCD tv, my tv seems to have a

Are you getting just the white glowing screen and no pictures or on screen menu showing? If that is the case, it can be the T-CON board failure or it is not getting the 5v or 12vdc feeding it from the main board.
http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/
http://s807.photobucket.com/albums/yy352/budm/LCD%20TV%20LCD%20controller-TCON%20board/
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

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
Parts: http://interliquidparts.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.
Please post back what you find.