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Scratched glass on monitor

Are there any solutions to fixing scratches in a monitor? I had to MRA
my monitor back to NEC for some othe problems but they said they had no
way to fix scratches in the glass. I was hoping someone out there had a
fix.
 
B

Bob

Jan 1, 1970
0
Are there any solutions to fixing scratches in a monitor? I had to MRA
my monitor back to NEC for some othe problems but they said they had no
way to fix scratches in the glass. I was hoping someone out there had a fix.

You can buy glass polish at any auto parts store, but it will only
remove very superficial scratches. Anything deeper and you're
screwed.
 
D

Dave D

Jan 1, 1970
0
Bob said:
You can buy glass polish at any auto parts store, but it will only
remove very superficial scratches. Anything deeper and you're
screwed.

That could make things very much worse if, like many modern monitors, it has
an anti glare/anti reflective coating.

Dave
 
B

Bob

Jan 1, 1970
0
Dave D said:
That could make things very much worse if, like many modern monitors, it has
an anti glare/anti reflective coating.

True.
 
S

Sam Goldwasser

Jan 1, 1970
0
Bob said:
You can buy glass polish at any auto parts store, but it will only
remove very superficial scratches. Anything deeper and you're
screwed.

And if it has an AR coating, it will make a real mess.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
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| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

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A

Arfa Daily

Jan 1, 1970
0
Sam Goldwasser said:
And if it has an AR coating, it will make a real mess.

But if it hasn't, and you're prepared to work at it, we used to get great
results back in the 70's using jeweller's rouge. Another thought for a '
plain ' glass faceplate. How about those windscreen scratch / chip repair
people that you see set up in supermarket carparks ? They use a glass-clear
epoxy of some description to fill the defect. Guess it might work for a CRT
faceplate blemish that wasn't too bad ??

Arfa

Arfa
 
Bob said:
You can buy glass polish at any auto parts store, but it will only
remove very superficial scratches. Anything deeper and you're
screwed.
Not so!

I've used products sold for repairing scratches on boat/motorcycle
windshields for glass monitors. It actually fills the scratches, but
you have to be careful to follow the instructions.
I've used the same stuff to repair seriously scratched CD's with fairly
good success.
Regards
Lee
 
J

JANA

Jan 1, 1970
0
The proper answer is NO.

There are some polishing compounds for glass. There are different ratings in
these compounds to have the correct ones. They start with the more coarse
and work to a finer one as the screen is polished.

The problem with the CRT glass, is that they are usually coated for
anti-glare. Polishing it will remove the coating from its surface. This is
going to make the surface look very bad.

There are some glass scratch filler kits available at some of the major auto
parts suppliers. These kits are usually used to mask the scratches in the
windscreens of the cars. I have no idea of how this will work for a TV
monitor screen.

Since you have a CRT monitor, I am sure it has at least a few years on it.
Maybe it would be a good time for you to invest in to a good LCD monitor.
Once you start with a good quality one, you will never want to go back to a
CRT.

Just don't scratch an LCD monitor screen. In this type, the complete screen
would have to be replaced to fix the problem.


--

JANA
_____


Are there any solutions to fixing scratches in a monitor? I had to MRA
my monitor back to NEC for some othe problems but they said they had no
way to fix scratches in the glass. I was hoping someone out there had a
fix.
 
B

Bob

Jan 1, 1970
0
JANA said:
The proper answer is NO.

There are some polishing compounds for glass. There are different ratings in
these compounds to have the correct ones. They start with the more coarse
and work to a finer one as the screen is polished.

The problem with the CRT glass, is that they are usually coated for
anti-glare.

Not usually. Some are, most aren't. No NEC CRT models
made in the last 5 years have an antiglare coating.
 
C

crazy frog

Jan 1, 1970
0
scraches can be danger, i scached an old
BW tv years ago and some time in the night
the tube imploded, glass everyware.
 
R

Ray L. Volts

Jan 1, 1970
0
JANA said:
Since you have a CRT monitor, I am sure it has at least a few years on it.
Maybe it would be a good time for you to invest in to a good LCD monitor.
Once you start with a good quality one, you will never want to go back to
a
CRT.

Until you want to use your LCD monitor in any resolution other than its
native mode or you want to achieve the best color reproduction (e.g., for
WYSIWYG output). I've yet to see any LCD come close to a CRT's clarity at
multiple resolutions. Pixel-addressed displays lose every time and probably
always will in this regard.
 
D

Dave D

Jan 1, 1970
0
crazy frog said:
scraches can be danger, i scached an old
BW tv years ago and some time in the night
the tube imploded, glass everyware.

Like a glass cutter, the damage from a scratch can affect glass deeper than
the visible damage. Slight scratches are OK, but with deep gouges I'd
discard the monitor after discharging the CRT.

CRT Monitors are ridiculously cheap these days so it isn't worth it to take
chances with safety.

Dave
 
S

Sam Goldwasser

Jan 1, 1970
0
Dave D said:
Like a glass cutter, the damage from a scratch can affect glass deeper than
the visible damage. Slight scratches are OK, but with deep gouges I'd
discard the monitor after discharging the CRT.

CRT Monitors are ridiculously cheap these days so it isn't worth it to take
chances with safety.

However, note that CRT implosion protection has improved dramatically
since the early days of time bomb B/W TV tubes.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.
 
D

Dave D

Jan 1, 1970
0
Sam Goldwasser said:
However, note that CRT implosion protection has improved dramatically
since the early days of time bomb B/W TV tubes.

True, but all things considered, a deep gouge on a crt is not worth either
the slight increased risk of implosion or trying to correct it IMHO. Also,
unlike TVs, people tend to sit very close to monitors, and even what could
be classed as a relatively safe implosion on a TV could be disastrous on a
monitor. A few years ago a 17" monitor for example would cost hundreds so
polishing out scratches was sometimes worthwhile, now they're about 65 UKP.

Dave
 
M

Mike Berger

Jan 1, 1970
0
I hear this a lot but it's just not true. There are cheap
CRT monitors of course, but replacing the high quality ones
some of us use is still fairly expensive.
 
Most modern computer monitors have a glued on anti-glare, anti-static
plastic film layer right on the front of the glass. If the scratch
went through the filma nd into the glass, replacing the crt is the only
option. If the scratches are superficial and only in the anti-glare
plastic layer, then the picture tube can be taken out of the cabinet,
carefully peel off the antistatic layer and clean any tape residue off
the glass, and reassemble.

Two things will happen when fixing it this way: 1. You will have to
work to keep the dust off the screen every day as dust build up will be
greater. 2. The image will be brighter and also will be more
susceptible to room light glare. Gray scale may be off as it was
adjusted with the light dimming properties of the anti-glare filter in
place.

But it will be useable.
 
M

Mark M

Jan 1, 1970
0
Most modern computer monitors have a glued on anti-glare, anti-static
plastic film layer right on the front of the glass.

Maybe on your planet. Not here on Earth.
 
Yes, I have had to pull off the plastic film off the face of a large
number of computer monitors crts in order to make them useable again in
this way.

I am not sure what computer crt monitors you use, but every brand I
have encountered has the antiglare layer right on the front glass.
Even Sam Goldwasser pointed out that the polish would make a mess of
this layer in an earlier post.
 
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