TV Repair Questions? Ask a TV Technician
I've had it for two days and it's been like this for two days. I got it from someone though, I didn't get it at a store.
The TV menu seems to be perfectly clear over the rectangles.
Yeah I have the same issue no matter what input. I've tried a PS3 on the HDMI and a PS2 in the AV ports.
Let me show you a little diagram here- this is what the TV's video processing looks like:
External Device (Cable Box, pS3, DVD, etc.)-->Mainboard (processes these Inputs)--> T-Con (generates MENU images)-->LCD panel (final step of the image being produced).
So you see when there's a problem with the image- but the MENU is NOT affected, you can tell it's occuring somewhere before the T-Con which boils it down to the mainboard, or the external inputs. Seeing as there's really no way would could have multiple faulty external devices, all exhibiting the same exact problem, then we know that the TV needs a Mainboard.
You would need to replace the mainboard in your TV to fix the issue. The Mainboard for your set can be purchased at the link below:
Some additional questions:
Does a failing main board mean that there are other potential errors down the line? Do you think this would be easy enough to do myself (I'm no soldering expert but I can follow instructions)? Also, there is a small black line on the very left of the screen that runs down the entire TV (doesn't seem to do with the boxes). Is that just an LCD display thing or do you think that by fixing the main board, that would go away?
In the ebay link, it says "The board numbers are A-1547-090-A, 1-876-561-13."
Does that mean I'd have to open up my TV first to see if it matched one of those two, or can I just go ahead and order it because the model number is XXXXX same?
Also, there are no other problems with the TV really. The only other thing is that there is a thin black line of pixels that are on the far left of the screen that seem to go over everything. I can live with it, but still want to know what that is.
Would you know of a guide to open it up?
I've done that, there's just two connections on the main board that I can't pull off and I don't want to pull too hard
EDIT: nevermind, I got it
So I replaced the main board and it's still the same. Could it be a faulty wire or something? I could take pics/ a video if it'd help.
When I scroll left and right, the menu is not effected by the boxes. Everything is clear and readable on the menu
They appear on every default screen for each input so I don't think it's a specific input. Plus, I tried my PS3 and it was the same situation.
I should also mention that the top and bottom rows of the boxes are constantly moving/flashing.
Which chip is the T Con?
Also, would you agree that that menu is clear over the boxes?
So there's 3 boards, there's the main board, there's a larger orange one in the middle, and theres a smaller one up top with a heatsink and metal casing on it. Is the one on the top the TCON?
Here is the T-Con
Alright, so it was the thing with the metal casing.
There only appears to be one cable directly connecting them, it's a thick black cable. The other one is a thinner cable that's connecting to the orange board in the middle (I'm guessing it's the power supply).
To my eye, neither cable looks damaged, but then again I also don't know what it's supposed to look like or what it looks like underneath the black casing of the thick black cable
I fiddled around with the black cable connecting the main board to the TCON and plugged it in weirdly so that the whole picture was messed up (just temporarily though). Could that be the problem, the cable connecting the two? Is there a way to make sure?
I found that it's called an LVDS cable. Can I just get any cable or does it have to be specific for that TV?
Is there a way to make sure that this cable is the issue?