12 Apr
2004
12 Apr
'04
1:43 p.m.
Although the CRT in question is off-topic, the question is fairly topical:
Is there any way to remove physical blemishes from the face of a CRT?
I've got a very nice 19" SVGA display that has some scratches on the face.
They are somewhat invisible unless you happen to be looking at something
at that part of the screen (lower third, right of center).
Can this be buffed out or ... ?
I hope there's a way to do this because I've been wanting to fix the face
of my 35" ProScan TV that has the same problem. You barely notice it, but
it is slightly distracting when you do.
--
Sellam Ismail Vintage Computer Festival
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12 Apr
12 Apr
2:14 p.m.
I had a 17" Sony GDM monitor a number of years back which had a similar
problem. It was perfect other than a couple of scratches in the face of
the CRT. I was able to polish out the imperfection using some rubbing
compound and afterwards, you could not see the location when using the
monitor face on. There was just a bit of a variation in glossyness when
viewing the CRT from an acute angle. If you have problems finding a polishing
compound, you might try a product designed for buffing out scratches in
car finish, or possibly even toothpaste (has to be the right type).
--tom
At 06:43 PM 4/12/2004 -0700, Vintage Computer Festival wrote:
Although the CRT in question is off-topic, the question
is fairly topical:
Is there any way to remove physical blemishes from the face of a CRT?
I've got a very nice 19" SVGA display that has some scratches on the face.
They are somewhat invisible unless you happen to be looking at something
at that part of the screen (lower third, right of center).
Can this be buffed out or ... ?
I hope there's a way to do this because I've been wanting to fix the face
of my 35" ProScan TV that has the same problem. You barely notice it, but
it is slightly distracting when you do.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
2:16 p.m.
I have had mixed results using the products that "remove scratches from your
glasses...", but usually pretty good.
I cant recall the brand name, one of those buy off the TV things, and I am
not at home where the can 'o stuff is...
I *think* if the surface is very clean, and you follow directions
carefully......
>> -----Original Message-----
>> From: cctalk-bounces(a)classiccmp.org
>> [mailto:cctalk-bounces@classiccmp.org] On Behalf Of Vintage
>> Computer Festival
>> Sent: Monday, April 12, 2004 9:43 PM
>> To: Classic Computers Mailing List
>> Subject: Removing physical blemishes from CRT?
>>
>>
>> Although the CRT in question is off-topic, the question is
>> fairly topical:
>>
>> Is there any way to remove physical blemishes from the face
>> of a CRT?
>> I've got a very nice 19" SVGA display that has some
>> scratches on the face.
>> They are somewhat invisible unless you happen to be looking
>> at something at that part of the screen (lower third, right
>> of center).
>>
>> Can this be buffed out or ... ?
>>
>> I hope there's a way to do this because I've been wanting
>> to fix the face of my 35" ProScan TV that has the same
>> problem. You barely notice it, but it is slightly
>> distracting when you do.
>>
>> --
>>
>> Sellam Ismail
>> Vintage Computer Festival
>> ------------------------------------------------------------
>> ------------------
>> International Man of Intrigue and Danger
>> http://www.vintage.org
>>
>> [ Old computing resources for business || Buy/Sell/Trade
>> Vintage Computers ]
>> [ and academia at www.VintageTech.com || at
>> http://marketplace.vintage.org ]
>>
10:30 a.m.
>>> I hope there's a way to do this
because I've been wanting
>>> to fix the face of my 35" ProScan TV that has the same
>>> problem. You barely notice it, but it is slightly
>>> distracting when you do.
35"? That size have not been made since early to mid 1990's.
I bet this TV is CTC169 or CTC177 chassis? This details is also on
same rear sticker with model number on it.
How is yours on picture quality if the set is over 8 years old? I'd
leave it alone and get new regular 32" TV like JVC or RCA. Less bulk
and bit manageable with weight. Cost is not as bad was used to be.
Next time, try not to buy ding & scratched tv or monitor for a
discount. Scratched tubes is very annoying and nearly impossible to
remove. The majority of cost faction of overall value is in tube
itself.
Ditto to any flat CRT stuff, if it's very cheap and very new, test it
before buying. Never buy a dead on sight unseen, chances it was
dropped = read: destroyed shadow mask. Very especially all philips
CRT and sony crts (dome or flat) and any brands using flat CRTs has
shadow mask that is easy to knock out of alignment even totally
popped loose.
Don't get too excited about the HDTV yet, it is very stunning
ESPECIALLY when standards is all aired out in the end. Just get
midrange 16:9 RCA or JVC projector if you like to watch movies in
16:9 format or watch sports on big screen.
Cheers,
Wizard (TV tech for TV shop)
3:07 p.m.
This is getting a bit OT but...
On Mon, 12 Apr 2004 jpero(a)sympatico.ca wrote:
35"? That size have not been made since early to
mid 1990's.
I bet this TV is CTC169 or CTC177 chassis? This details is also on
same rear sticker with model number on it.
Close: CTC170R.
How is yours on picture quality if the set is over 8
years old? I'd
It's terrific. The set is maybe 10 years old now.
leave it alone and get new regular 32" TV like
JVC or RCA. Less bulk
and bit manageable with weight. Cost is not as bad was used to be.
Sure, but this is one nice TV. It employs a picture technology they call
IDTV or "Improved Definition TV". Basically, they use an algorithm that
fills in between scan lines with the picture data above and below. There
are almost no visible scan lines. The clarity is phenomenal. In fact,
it's even better than my 40" Sony Vega from 2000. Even though the picture
quality on that is terrific, the ProScan is still much better because of
the IDTV.
Next time, try not to buy ding & scratched tv or
monitor for a
discount. Scratched tubes is very annoying and nearly impossible to
remove. The majority of cost faction of overall value is in tube
itself.
Sure, but I got a really good deal for a really good TV. It was a floor
model and I think I talked the sales dude down by nearly US$1,000 because
of the scratches on the tube, which again are not normally noticeable
(just occasionally depending on where the action is on the screen and
what's being displayed, the lighting in the room, etc.) I used the
savings to buy the extended warranty plan which came in handy a few years
after I bought it when a transistor on the mainboard went out. The repair
guy came and fixed it (apparently it was a known flaw) and it's been
working just as good as new ever since. I figure (hope?) I'll get a
couple more years out of it before it blows.
Ditto to any flat CRT stuff, if it's very cheap
and very new, test it
before buying. Never buy a dead on sight unseen, chances it was
This monitor was free (or actually, it was more than free...being an
e-waste recycler has its side benefits ;) so it's no loss either way. I
just like this one because it's nice and big, has an integrated USB hub
(very handy) and it's somewhat stylish (Nokia Multigraph 446XPro).
Mainly, it was the USB hub that clinched it for me, even though I have
another display available that's an inch bigger.
Don't get too excited about the HDTV yet, it is
very stunning
ESPECIALLY when standards is all aired out in the end. Just get
midrange 16:9 RCA or JVC projector if you like to watch movies in
16:9 format or watch sports on big screen.
When my ProScan goes I'm probably going to get one of them fancy flat
panel displays and reclaim some floorspace in my bedroom. I figure the
price will have come down a bit by then as well.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
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13 Apr
13 Apr
7:36 a.m.
Hi,
WOW!! I'm surprised that TV is still working after 10 yr. This
chassis is a dog, enjoy it while it is working. I work for a shop by
the way and haven't seen a CTC170 based tv yet I do have schematics
for it.
I bet this TV
is CTC169 or CTC177 chassis? This details is also on
same rear sticker with model number on it.
Close: CTC170R. Sure, but this is one nice TV. It employs a picture
technology they call
IDTV or "Improved Definition TV". Basically, they use an algorithm that
fills in between scan lines with the picture data above and below. There
That's unusual feature haven't heard of that.
working just as good as new ever since. I figure
(hope?) I'll get a
couple more years out of it before it blows.
Being RCA, and knowing the RCA CRT is, they will last much longer
than that like 3 or 5 years more based on your description of picture
quality. For this reason, I like to own either RCA or JVC, many of
them especially JVC 27" sets used RCA tubes.
This monitor was free (or actually, it was more than
free...being an
e-waste recycler has its side benefits ;) so it's no loss either way. I
When my ProScan goes I'm probably going to get one
of them fancy flat
panel displays and reclaim some floorspace in my bedroom. I figure the
price will have come down a bit by then as well.
LCD and Plamsa are not nice. Too many minuses and primarily cost.
I'd look at OLED developed that far and alteratively DLP which
is very *GOOD* and is here now. Old standby CRT based projector is
cheaper and bright.
By the way, CRT based projector that is HDTV compatible (16:9 format)
in 1080i mode shows very little lines. Actually, picture looks
purer. There is 16:9 format direct view CRT sets but hellcious
heavy.
Cheers,
Wizard
7:17 p.m.
On Tue, 13 Apr 2004 jpero(a)sympatico.ca wrote:
WOW!! I'm surprised that TV is still working
after 10 yr. This
chassis is a dog, enjoy it while it is working. I work for a shop by
the way and haven't seen a CTC170 based tv yet I do have schematics
for it.
It can't be that much of a dog if you've never seen one in your shop!
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
12 Apr
12 Apr
4:57 p.m.
Although the CRT in question is off-topic, the question is fairly topical:
Is there any way to remove physical blemishes from the face of a CRT?
I've got a very nice 19" SVGA display that has some scratches on the face.
They are somewhat invisible unless you happen to be looking at something
at that part of the screen (lower third, right of center).
Can this be buffed out or ... ?
I hope there's a way to do this because I've been wanting to fix the face
of my 35" ProScan TV that has the same problem. You barely notice it, but
it is slightly distracting when you do.
If the scratches are minor, so the CRT faceplate is not significantly
weakend, then there are kits available for polishing car windscreenss
(Oh, OK, auto windshields, right?). They'd probably help.
If the CRT faceplate is weakened, then replace that CRT before it implodes!
-tony
9:17 p.m.
Does the monitor have an anti-glare coating? The various suggestions
posted for buffing out the damage would seem applicable to an ordinary
glass screen such as I have seen on older/cheaper small-screen monitors,
but most newer and large screen monitors have some kind of anti-glare
coating. The best ones use a metallic coating that is easily damaged and
looks bad when it is scratched off. You should conside whether removing
it will make matters worse. Some cheaper anti-glare treatments just put a
matte finish on the glass, and might not suffer quite so badly.
--Bill
----- Original Message -----
From: "Vintage Computer Festival" <vcf(a)siconic.com>
To: "Classic Computers Mailing List" <cctalk(a)classiccmp.org>
Sent: Monday, April 12, 2004 6:43 PM
Subject: Removing physical blemishes from CRT?
Although the CRT in question is off-topic, the question is fairly topical:
Is there any way to remove physical blemishes from the face of a CRT?
I've got a very nice 19" SVGA display that has some scratches on the face.
They are somewhat invisible unless you happen to be looking at something
at that part of the screen (lower third, right of center).
Can this be buffed out or ... ?
I hope there's a way to do this because I've been wanting to fix the face
of my 35" ProScan TV that has the same problem. You barely notice it, but
it is slightly distracting when you do.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
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ard＠p850ug1.demon.co.uk -
dvcorbin＠optonline.net -
jpero＠sympatico.ca -
uban＠ubanproductions.com -
vcf＠siconic.com -
wmaddox＠pacbell.net