Does displaying no signal on a CRT cause wear? - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
Thread Tools
post #1 of 2 Old 03-12-2011, 02:09 PM - Thread Starter
Senior Member
dcorban's Avatar
Join Date: Sep 2006
Location: Canada
Posts: 218
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
My CRT TV has more noticeable overscan when the set is first turned on. After it has warmed up for 15-30 minutes, it is back to a normal level. Because of this, I often leave my TV on even if I am not planning on using it for anywhere up to an hour. There is no signal on the input, so it is just the black screen.

I assume that the TV displaying no signal will not cause any wear on the tube. Is this correct? Is there some other harm I am doing to the set by leaving it on in this manner?
dcorban is offline  
Sponsored Links
post #2 of 2 Old 03-15-2011, 07:48 PM
AVS Forum Special Member
Colm's Avatar
Join Date: Aug 2002
Posts: 4,752
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 94
Well, there should be little to no wear on the phosphors. OTOH thermionic emission is still going on in the guns, whether electrons are being directed toward the phosphors or not.

I wouldn't worry about it because it sounds like you are going to have other problems first.
Colm is offline  
Sponsored Links
Reply Direct View (single tube) CRT Displays

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off