Apparently after relocating the Sony kdl40v2500 fr an upstairs room to another room on the ground flr, the screen even though still has a picture has fine vertical lines throughout??!! Any ideas?

SOURCE: Black Vertical line about an inch wide right of middle - PFM-42V1 Sony

The problem is the actual PDP panel address chips blown or a faulty ribbon cable to the PDP or if your lucky it may be a dry joint - Tap the ribbon while the set is on very lightly on all cables with something plastic and see if the black line goes away - if so your lucky and its an easy but fiddly repair.

SOURCE: Multi colored vertical lines

Probably you need an optical block, but it would take a tech looking at it to be sure

SOURCE: lines running vertical that appear to be red

hi

it is colour wheel problem,,,check it
please rate it..

thank u....

SOURCE: SONY KDF E50A10 vertical multi-colored lines across the screen

bad Q box, need tech to replace

SOURCE: A fine green vertical line displayed on the Sony Bravia 46.

Thats a pixel data problem, there's no data being sent to that row of pixels so they don't change color. This is a pixel address registry (PAR) issue and the PAR circuits need to be serviced its usually due to open or shorted SMT components on the PAR circuits. PAR also sends data, voltage, and control to each pixel, the green line you see are pixels that have voltage but because there's no data sent too them their all green because there's no control. If the pixels have voltage but no data or control they show up as green red, blue, yellow, or whit line vertically down the LCD panel. The vertical-horizontal section of PAR are controlled by 16 to 32 bit micro-controllers which may need replacing. If its under warranty take it back if not have your local repair center fix the tv for you...