Vertical lines in TV?

2Dfan

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There are 2 vertical lines across the screen of my TV, about a quarter of the screen left and right from the middle.

Any ideas what might be causing this? Do I have to go back to the store?
 

2Dfan

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OK, this took me long enough...I made a pic, but it's very hard to capture, I hope you can see what I mean.

There are 2 black vertical lines all across the screen. 1 about 10 cm from the left, the other also 10 cm but this time from the right.

verticallines.png
 

ttooddddyy

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Thats wierd, if they were horizontal lines I would say the damper wires on Sonys aperture grill Trinitron CRT.

q406.jpg


Is it a trinitron ??
 

2Dfan

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Sorry, I forgot to tell what model/brand etc.

It's a Philips 29 inch, 100Hz, 4:3 flatscreen TV.

BTW, I got into the tech menu (found the remore control code on the net) and I adjusted the screen, since it was a little off...does this have something to do with those lines?
 
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Razoola

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I would think they are the wires holding the grill inside the trinitron crt like ttooddddyy says. I have the same thing on my sony pc monitor and the lines are veritcal also in at about the same position you mention. There is nothing you can do about those and its quite normal if thats what they are.

Raz
 

DanAdamKOF

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Those are wires holding the grill on?! I thought they were lines of burned pixels (which confused the hell out of me since they still show what's underneath just fine). I have two of the same VGA Trinitron CRTs and I found it odd that they both had two lines of "burned pixels" in the same place; I assumed it was a defect.


Thanks, guys, I'm glad to finally know what those are. Sorry to not contribute otherwise.
 

2Dfan

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Oh, I see, that would explain it. But the thing is, we have a widescreen TV downstairs (also Philips 100Hz etc.) and that one doesn't have it.

I think I'll go back to the shop anyway and see with what explanation they come up with.
 

ttooddddyy

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Dreamer said:
Oh, I see, that would explain it. But the thing is, we have a widescreen TV downstairs (also Philips 100Hz etc.) and that one doesn't have it.

I think I'll go back to the shop anyway and see with what explanation they come up with.

Philips do not use aperture grill like Sony afaik ?. So its not likely to be the issue. Unless its some new Philips crt design. The "damper wires" are going the wrong way in any case. The Sonys have them run horizontally, otherwise you would get purity problems with the vibration from the speakers (think of it like a harp)
If you tap the front of a Trinitron CRT the effect is quite noticable, ripples of purity errors.

In the UK I used to be a tech with a Sony dealer, we often got complaints about the damper wires. Once a customer notices them, if they are anal retentive, thats all they look for.

I dont think its the case here though.

If your able to get into the geometery adjustments try shifting the horizontal position, if the lines stay put the problem has to be with the CRT.(and maybe it is some new Philips crt design issue, like the trinitron) Im really interested on the result here.
 

2Dfan

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ttooddddyy said:
Philips do not use aperture grill like Sony afaik ?. So its not likely to be the issue. Unless its some new Philips crt design. The "damper wires" are going the wrong way in any case. The Sonys have them run horizontally, otherwise you would get purity problems with the vibration from the speakers (think of it like a harp)
If you tap the front of a Trinitron CRT the effect is quite noticable, ripples of purity errors.

In the UK I used to be a tech with a Sony dealer, we often got complaints about the damper wires. Once a customer notices them, if they are anal retentive, thats all they look for.

I dont think its the case here though.

If your able to get into the geometery adjustments try shifting the horizontal position, if the lines stay put the problem has to be with the CRT.(and maybe it is some new Philips crt design issue, like the trinitron) Im really interested on the result here.


Alright, I'll try it right now.

Oh wait, I checked again and the lines stay put, it's hard to see.
 
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ttooddddyy

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Dreamer said:
Alright, I'll try it right now.

Oh wait, I checked again and the lines stay put, it's hard to see.

That confirms its the tube, it will be interesting to hear the suppliers explaination.
 

2Dfan

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ttooddddyy said:
That confirms its the tube, it will be interesting to hear the suppliers explaination.

I'll be going to the store tomorrow, I'll post results here, thanks for the help.
 

Razoola

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I must have been half sleeping when I replied to this post this morning or I have gremlins in my Sony CRT. I have basically got home now and when I look at my monitor the lines are indeed Hortz and not Vert like I said thismorning :)

I must agree though, when I first noticed the lines the monitor was straight back into the box and back to the supplier, I did feel a little stupid once they explained what they were and that it was normal. Over time I have forgot about them, I hope they don't come to the front of my mind again now every time I do some picture editing like they used to once I first got the monitor.

Raz
 

ttooddddyy

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Sincere apologies to all those sony owners who never noticed this before, the damper wires must now look like 10x as thick :eye: :eye: (like two clothes lines in front of the screen). :lol:
 

2Dfan

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Alright, I went back to the store and the dude said it was either the tube or tube transmitter (whatever that may be).

I'll bring my TV to them next week, they will check it at the store and then send it for repair which will take at least a month (wtf?). So I hope it will be fixed.
 

RGP

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ttooddddyy said:
Sincere apologies to all those sony owners who never noticed this before, the damper wires must now look like 10x as thick :eye: :eye: (like two clothes lines in front of the screen). :lol:

I've always known of the damper wires, its how you can tell its a Sony tube, never really notice them though.
 

2Dfan

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Hey toddy and other tech guru's.

About those lines...I asked the tech guy who was here today for the degaussing thing, he told me I could try a bigger RGB cable, which is more isolated, it could be a voltage problem.

I have 2 scarts, 1 composite only, the other RGB capable.

And just my luck, the lines are only visible on the RGB capable one...

So do you guys know any way I can fix this? Using another cable isn't really an option, since this one was already custom made...

BTW, This is Dreamer, in case you didn't notice, the other account had some problems...
 
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