I HAVE JUST BOUGHT A SAMSUNG 40" LCD TV - LE40A456C - WHEN VIEWING EXT1 SOURCE FOR DVD'S THERE IS A FAINT SHADOW MOVING CONSTANTLY FROM LEFT TO RIGHT ON SCREEN WHICH APPEARS TO BE THE SATELLITE CHANNEL SHOWING ON EXT2 SOURCE. NOTHING IN MANUAL TO TELL ME HOW TO FINE TUNE EXT1 TO REMOVE THIS SHADOW. CAN YOU HELP?

The LCD display panel is bad. That cannot be repaired. The price of a new or possily a used one will cost as much as a new set. I suggest watching it till you can't stand it anymore then toss it out and look for a new set.

Interference - use a better antenna and wall plug with protections/filters.

Here is the user manual telling you how to do it using HDMI or D-SUB15HD.
http://www.retrevo.com/support/Samsung-LN-46A650-TVs-manual/id/17150bh339/t/2/

here is the link to you receivers manuals:
http://www.pioneer.co.uk/uk/support/manuals/DVH-P5000MP/index.html
press source to select between sources:
dab turner-tv-dvd-sdvd-multicd-ext1-ext2-aux
this function is only avail on the remote. Source is upper right button above the round up/down/left/right toggle.

Cheers!

make sure all cables are connected firmly and that your on yhe right input mode on tv ( AV1 or AV2 ) EXT1 or EXT2

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} If you are trying to view the DVD on the Samsung TV, you need to firstly connect the DVD to the appropriate connection on the TV.

Once connected, with a Samsung TV, you need to press the SOURCE button on the TV remote control to view any external sources such as your DVD player.

The ‘NO SIGNAL’ message would indicate there is no signal, if you have not tuned your channels in, this may be the digital tuner you are viewing. Press the source button whilst a DVD is playing in the DVD and see if an image displays.

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!

if the unit is under warranty call samsung for the nearest authorized repair place. the problem is a bad main board.

Plug the TV into a wall socket by itself, have seen this when TV was plugged into a power strip.

Yes, it's not uncommon. It also depends a bit on the TV. Some are better than others. There is a connection between price and quality, although it is not absolute. What kind of equipment are you using? DVD, satelite tuner etc, and how is it connected? (scart etc)

Colors can be adjusted from the menus (se your manual for reference). I've never seen a TV that don't need color adjusting before it gets good, as color experience will vary with room coloring and light, etc.