samsung tele help

[coyote]

hi all
i have a 42 inch samsung Samsung PS42Q7HDX 42?can only get EXT1-EXT2 cant get input to computer to work nor any of the AV's / s-vidio I know it is not my lap top as can use it on another samsung tele i have I have tried factory reset still dosent solve the problem on handset you have a program botton that lets you change between program settings still nothing when i go into tele settings the pc wont high light

[Dowie]

Hi mate ive just had the same problem with a LE4088rd that kept saying no signal on the PC input only and samsung came out (within warranty also 3 black lines on the screen which they changed the panel) and replaced the main board and still the same, they sent me an authorisation letter for a full refund as theres no software upgrade for the fault!