I have over 30 years experience in digital electronics. Recently I have repaired a dozen or so lcd and plasma tv's. I have a problem with a Polaroid TLA04011c. According to my customer when he tried to plug in the vga the tv went dead. Before it worked fine. I have found numerous postings that refer to too much resolution from the computer vga driver damaging the tv. To me this is insane, I have hooked up many lcd models with the wrong resolution and the only thing that happened was an error message. When the tv is plugged in, i get a solid red lamp that never changes or flickers when the power switch is depressed. I have a good 24 and 5 vdc from two of the three areas of the lvps. I figure the third output voltage is switched by the logic. However without schematics I don't know for sure but at this point I am assuming it is on the main control board since the status led never changes from red and that was the board the customer plugged into. There is no excessive heating of any components anywhere. Is there a reset procedure for the main control board? Can you give me specifics to isolate problem to a board? Where can I find a service manual with schematics? This has to be a reset procedure... am I correct?

The manual is a users manual and doesn't do much good.. To clarify the TV is not coming on whether VGA or TV inputs. I tried connecting the vga with windows 7 but that didnt help. However, an interesting point .... Windows detected the TV with the proper model number and reccommended a resolution even with the tv not powering up. That tells me basic logic must be working. I tried various combinations of screen resolution down to 400 x 600 and including the one windows reccomendeds for this monitor (1368 /768) but still nothing happens the red light remains a steady on when the power cord is plugged in... and there is no picture or sound. it is not powering on..


The reset procedure you reccomended didnt make any changes and is probably for use once tv powers on.


I have found listing after listing on this model where people have plugged in the vga and the tv totally shuts down, but no solutions... The manual is a users manual and doesn't do much good.. To clarify the TV is not coming on whether VGA or TV inputs. I tried connecting the vga with windows 7 but that didnt help. However, an interesting point .... Windows detected the TV with the proper model number and reccommended a resolution even with the tv not powering up. That tells me basic logic must be working. I tried various combinations of screen resolution down to 400 x 600 and including the one windows reccomendeds for this monitor (1368 /768) but still nothing happens the red light remains a steady on when the power cord is plugged in... and there is no picture or sound. it is not powering on..
The reset procedure you reccomended didnt make any changes and is probably for use once tv powers on.
I have found listing after listing on this model where people have plugged in the vga and the tv totally shuts down, but no solutions...