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 Post subject: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Sun Sep 13, 2020 10:49 pm 



Joined: 04 Apr 2020
Posts: 30
The screen looks cracked but the glass is fine. You can also see some similar scratch types faintly in the background.

Can anyone tell me the cause of this problem and if it can be repaired?

Any input is appreciated, thanks.

Image


Last edited by nes.og on Mon Sep 14, 2020 1:32 am, edited 1 time in total.

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 Post subject: Re: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Mon Sep 14, 2020 12:58 am 



Joined: 01 Mar 2018
Posts: 538
Looks like magnetic interference to me. Or your H and V knobs have been tweaked with.


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 Post subject: Re: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Mon Sep 14, 2020 1:29 am 



Joined: 04 Apr 2020
Posts: 30
ldeveraux wrote:
Looks like magnetic interference to me. Or your H and V knobs have been tweaked with.


Thanks for taking your time to respond. I should mention the colors look ok so I would think it’s not a magnetic issue? I can try adjusting the H and V but have never seen any issues like this pictured online to suggest that.


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 Post subject: Re: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Mon Sep 14, 2020 2:26 pm 


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Joined: 16 Jan 2014
Posts: 1036
Can you post a pic of a full white screen? Its hard to see much except the bottom left corner here.


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 Post subject: Re: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Mon Sep 14, 2020 3:20 pm 



Joined: 04 Apr 2020
Posts: 30
Josh128 wrote:
Can you post a pic of a full white screen? Its hard to see much except the bottom left corner here.


Not sure how to produce just a white screen? I believe it would be less noticeable because it is hard to see with other colors, most visible on black since it is white.

Here is a closer picture:

Image


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 Post subject: Re: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Mon Sep 14, 2020 3:57 pm 



Joined: 02 Mar 2017
Posts: 1151
I've honestly never seen anything like that and I've owned literally tons of TV's in all sorts of conditions. I want to say the grille is damaged though, and that's non-fixable. I would just trash it and find another if that's an option for your part of the country/world (around me, NYC/Philly area you can find that exact model or super similar left and right on Craigslist).


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 Post subject: Re: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Mon Sep 14, 2020 5:31 pm 


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Joined: 16 Jan 2014
Posts: 1036
Agree it looks like some kind of aperture grille damage. If thats the case, the tube is trashed and you need a new tube. I'd still love to see what it looks like on a colored screen though.


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 Post subject: Re: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Tue Sep 15, 2020 5:21 am 



Joined: 04 Apr 2020
Posts: 30
Josh128 wrote:
Agree it looks like some kind of aperture grille damage. If thats the case, the tube is trashed and you need a new tube. I'd still love to see what it looks like on a colored screen though.


You can barely see it over color so maybe not the aperture grille?

Image

Image


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 Post subject: Re: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Tue Sep 15, 2020 11:54 am 


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Joined: 16 Jan 2014
Posts: 1036
Now thats interesting to say the least. No longer convinced its the AG, as that picture looks decent with no purity issues or rainbow effects. Let me ask this, if you "knock" on the screen firmly with your knuckles, does it produce a visible shimmer/shake? You have to look closely, as if it does, it will be hard to see and very subtle.


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 Post subject: Re: Can anyone tell me what is wrong with this CRT picture?
PostPosted: Wed Sep 16, 2020 5:11 pm 



Joined: 04 Apr 2020
Posts: 30
I tried knocking on it until my knuckle was soar and didn’t notice anything even faintly. Perhaps there may be some material other the grille behind the glass or in between it?


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