CRT glass repair

[BTRY B 529th FA BN]

I have a CRT that has a scratch on the glass. A linear scratch. What can be done to fix this? I was thinking of using a windshield crack repair kit.

Anyone experienced with this?

thanks

 

[Bateluer]

Its not really worth the hassle for a display that old. Take it as a sign from the powers that be that its time to upgrade.

 

[BTRY B 529th FA BN]

Sony FW900

 

[mfenn]

CRT glass has special coatings that make it a bitch to work with. Normal glass "repair" (really there is no such thing) techniques will leave very visible visual artifacts when the tube is powered up. I agree with Bateluer, it is not work messing with.

 

[BTRY B 529th FA BN]

Thanks for the replies :awe:

 

[GoStumpy]

Windshield repair definitely will not work.

Nothing will work.

Sorry!

 

[jpeyton]

I used this to repair my CRT.

 

[mfenn]

I used this to repair my CRT.

And here I was thinking that you were going to post this.

 

[bryanl]

The scratch can be polished out, but this will remove the antiglare coating around it. One person reported luck repairing the latter with spray tint (consider spraying through a hole in a piece of cardboard held an inch from the screen), while others have removed the antiglare from the whole screen.

 

[Dinkydau]

I have the same problem. What happens if I remove the whole antiglare? Wouldn't the monitor turn into a mirror? It must have a purpose, otherwise it wouldn't be there. Plus I know that CRT monitors have protection against radiation. Is it dangerous to remove the coating? The scratch that I have here is annoying (any scratch is always annoying) but I wouldn't stop using this monitor if it cannot be repaired, so I don't want to make it worse.

 

[BTRY B 529th FA BN]

These days an LCD with Lightboost technology is just as good with ghosting and input lag as the CRT's of old. I have the Asus 1ms LCD and I don't even use the Lightboost trick by blurbusters. It's fast enough.

 

[bryanl]

I have the same problem. What happens if I remove the whole antiglare? Wouldn't the monitor turn into a mirror? It must have a purpose, otherwise it wouldn't be there. Plus I know that CRT monitors have protection against radiation. Is it dangerous to remove the coating? The scratch that I have here is annoying (any scratch is always annoying) but I wouldn't stop using this monitor if it cannot be repaired, so I don't want to make it worse.

Removing the antiglare coating won't have much of an effect on picture quality but just reduce the contrast slightly in bright room lighting.

The radiation protection for the CRT comes almost entirely from the glass containing shielding materials like lead, barium, or strontium, and the CRT puts out only lower frequency x-rays that are absorbed by the atmosphere. The real x-ray hazard from CRT monitors and TVs came not from the CRT but from another tube, the high voltage (25,000V) diode, which was so hazardous and emitted hard x-rays that it had to be housed in a steel box for shielding. That tube was mostly replaced with silicon devices by the early 1970s, with one of the last TVs using a tube diode being a 10" portable GE that operated at voltage too low to emit x-rays and can be seen in early episodes of House, in Dr. House's office.

 

[Dinkydau]

Thank you
I will try to remove the coating from another (malfunctioning) CRT monitor first, then depending on how it goes maybe I will remove the coating from my fw900.

@BTRY B 529th FA BN, for me the speed is not crucial. I use it to create digital art. I find this monitor more soothing for the eyes than any others I've seen. Especially dark environments look amazing with the lights out (and the scratch is barely visible, then).

 

[paul878]

You need to move on, CRT have a lifespan and it will eventually die on you.

 

[Dinkydau]

I'll wait for that, then.