• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join free Log in
    Want zero display ads or expanded classifieds tools? Compare plans.

LCD TV Question...

#22
I looked. Doesn't seem relevevant, however. It's not just a few pixels. It's the entire line across a 40 inch screen. That's god knows how many pixels!

Eric, it's def. not the primary TV. I've got a 47 plasma in the living room, a 32 LCD in the kitchen, and a nice (albeit older) CRT in the bedroom. This set was going to replace the CRT if I can fix it. If not, playroom TV! :D
 
#23
It's not a dead pixel. The section of circuit that drives (or enables) that whole horizontal line is either dead or has lost connection. Think of the screen as an array (probably 1920 × 1080) of pixels; each vertical and horizontal row of pixels has a control line so that every pixel can be addressed.

That being a consumer product, I wouldn't expect that the manufacturer made that an easy problem to fix.
 
#25
MakiSupaStar said:
It would be more annoying that that black porn dot.
Click to expand...

What black porn dot? Youve piqued my interest...

RWP said:
A guess would be a cold solder joint on one of the line driver chips. If it were mine I would pop it open and do a real good visual inspection of all the components under magnification. If you got lucky you might be able to find something obvious. If you don't see anything you could try the poke around method, especially connectors, while watching the screen for any changes. Who knows you might get lucky. Please use standard precautions when working with anything that has line voltage lurking around. Although LCDs do not have high-voltage transformers like older TVs they still have 110 inside.
Click to expand...

My gf had a busted VCR in her closet. Our roommates moved out and took the old one with them, so I decided to se if I could fix the busted one. I opened it up and looked around, everything seemed fine. So, I put a tape in it and pressed play (while it was still open). It kind of worked, aside from being all snowy with warbled sound. I seriously just prodded at different parts for a few minutes until the picture and sound ended up coming back. Its been fine ever since.

I'm a fan of the 'open her up and touch various parts until she turns on' method.
 
#30
i currently own a samsung that had a row or two of pixels go bad on me, though they changed colors and were all around glitchy, and not a black line. it was still under warranty, so they fixed it by putting in a new panel.

i wont go into whether or not i think it your purchase was worth it, as thats your call, but i just thought id mention my experience as a possible fix, if you are inclined to fix it. a samsung certified place nearby came to my house and all that, so they are fairly good about customer service.
 
#31
you would get used to it, i have a dead bug in my laptop screen (god knows how it got in there, i have some pictures somewhere of it moving around.) its just a small dark smidge to one side of the screen. Drove me mad for about 2 hours, now i almost always forget it is there.

Id buy the TV for $100, straight up.
 
#32
varunkapahi said:
i get a weird kind of line on my pc screen too sometimes when watching movies only! and mine is a new monitor. the thing is its intermittent so i cant prove it to the warrenty people and maybe am just too lazy about it
Click to expand...

One of the pins on the connector may be slightly oxidized.

Have you tried giving said pins a shot of contact cleaner (after first powering the computer and monitor down)?
 
#36
Bob Lee (QSC) said:
It's not a dead pixel. The section of circuit that drives (or enables) that whole horizontal line is either dead or has lost connection. Think of the screen as an array (probably 1920 × 1080) of pixels; each vertical and horizontal row of pixels has a control line so that every pixel can be addressed.

That being a consumer product, I wouldn't expect that the manufacturer made that an easy problem to fix.
Click to expand...

Bassmingo said:
try and see if the tv allows firmware updates. some lcds can do this via usb or similar. it might be fixable via this method without having to open it up.
Click to expand...
Thanks guys. I'm gonna try the firmware upgrade (I know it most likely won't help, but it's due anyway), and start digging inside this weekend. :)
 

Latest posts

Top Bottom
Back