50V500 green dot - Canadian TV, Computing and Home Theatre Forums

Denis · 2007-09-07, 09:52 PM

I have a 50V500. It's a rear projection LCD HDTV, and it's about 3 years old. Lately, I've noticed a green dot on the screen, most noticeable when there are dark colours in that area of the screen. It's always at the same place. Since this is not a DLP TV, I cannot figure out why I would have a dot at the same place, and always green. I've inspected the screen, and it's intact.

Any ideas what the problem is?

Thanks

jvincent · 2007-09-07, 09:56 PM

You have a stuck pixel.

Denis · 2007-09-07, 09:59 PM

Which means what, and what is the solution? Sorry to be so ignorant.

jvincent · 2007-09-07, 10:04 PM

Stuck pixels are one of the failure modes of LCD, DLP, and Plasma TVs. They can either be stuck off (black) or on, which is what you have.

They are caused by a failure in the panel that is used to control the individual colours.

There's no way to fix them.

shabbs · 2007-09-07, 10:41 PM

Is it a dot or a blob? I've had the "green blob" on my Sony RPLCD and it was dust on the LCDs that needed cleaning.

Denis · 2007-09-07, 11:06 PM

It's a dot. When you say it needed cleaning in your case, you disassembled the TV and cleaned the projector inside?

2007-09-07, 09:52 PM	#1
Denis Join Date: Oct 2004 Location: Ottawa Posts: 133	50V500 green dot I have a 50V500. It's a rear projection LCD HDTV, and it's about 3 years old. Lately, I've noticed a green dot on the screen, most noticeable when there are dark colours in that area of the screen. It's always at the same place. Since this is not a DLP TV, I cannot figure out why I would have a dot at the same place, and always green. I've inspected the screen, and it's intact. Any ideas what the problem is? Thanks

2007-09-07, 10:41 PM	#5
shabbs Veteran Join Date: Feb 2006 Location: Toronto, Rogers Cable, Cisco 8642HD PVR Posts: 2,216	Is it a dot or a blob? I've had the "green blob" on my Sony RPLCD and it was dust on the LCDs that needed cleaning. __________________ Sharp AQUOS Quattron LC-70LE732U + 8642HD \| Panasonic TC-P42U1 1080p plasma + 4642HD \| BlackBerry Z10 / PlayBook

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

2007-09-07, 09:56 PM	#2
jvincent Moderator Join Date: Nov 2002 Location: Ottawa Posts: 5,369	You have a stuck pixel.

2007-09-07, 09:59 PM	#3
Denis Join Date: Oct 2004 Location: Ottawa Posts: 133	Which means what, and what is the solution? Sorry to be so ignorant.

2007-09-07, 10:04 PM	#4
jvincent Moderator Join Date: Nov 2002 Location: Ottawa Posts: 5,369	Stuck pixels are one of the failure modes of LCD, DLP, and Plasma TVs. They can either be stuck off (black) or on, which is what you have. They are caused by a failure in the panel that is used to control the individual colours. There's no way to fix them.

2007-09-07, 11:06 PM	#6
Denis Join Date: Oct 2004 Location: Ottawa Posts: 133	It's a dot. When you say it needed cleaning in your case, you disassembled the TV and cleaned the projector inside?