• We've made some quality of life improvements to the Trading Post. More info here.

Rebuilding an Apple Multiple Scan 20" display

If the problem is just the anti-glare film, that would be awesome! I will try to remove it anyway. Thanks for the link @KURB, that is very useful!
I once removed the antiglare film from an AppleVision 1710 after it had become damaged. I suspect yours will be the same but as the linked article says, it will be obvious once you have the CRT removed from the bezel.

It’s quite good to know you can actually get replacement film of this sort.
 
Thanks for the feedback @croissantking. I read the article and unfortunately, the CRT Database page lists this monitor's glare film as non removable: https://crtdatabase.com/crts/apple/apple-multiple-scan-20-m1283

I had some hope but I guess I am out of luck here. It seems I am back at the point of having to remove the entire glass to fix the issue... Or try to find a replacement tube.

I strongly encourage you to do your own hands-on investigation. That site lists the AppleVision 850 as having a non-removable glare film as well when I know for a fact it is removeable.

It’s also not made fully clear what their own definition of removable is.

A lot of these types of sites have misleading or incorrect info so while they’re useful as a general reference they must be fact checked before basing important decisions on them.
 
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I will need to re-open the monitor because the picture decided to flicker like crazy. I believe that it needs a full recapping.

If the problem is just the anti-glare film, that would be awesome! I will try to remove it anyway. Thanks for the link @KURB, that is very useful!


Do you still have the stand? If so, could you share some measurements, or even just a few pictures? I kept the ADB board and I plan to 3D print a new stand. I have started modeling it based on photos that I found on the Internet.

Thanks anyway!
Yes i can measure it and take pics i do not know if i will have any more time today though but maybe. If not then i will get them up by tomorrow sometime.
 
Thank you so much @KURB ! There is no rush, I still have so much to do on this monitor! You can take all the time you need. I will share the 3D model if I am happy with the result so you could take that opportunity to recreate yours as well.
 
@feeef I went and took the pictures im going to have my wife clean them up on her phone and ill be uploading them sometime in the next hour or 2
 
Here is what i got hopefully you can make out the measurements
 

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Thank you so much @KURB ! That is very helpful! I have to admit that Imperial measures are Chinese to me, but I will try to understand the marks on the ruler and find some tools to convert them to mm.
 
Thank you so much @KURB ! That is very helpful! I have to admit that Imperial measures are Chinese to me, but I will try to understand the marks on the ruler and find some tools to convert them to mm.
That sucks lol. Its all in inches, yeah. I am in USA.

Everything seemed to be about 1/8th of an inch over on the measurements. Like the one that says 13 taken in the middle was 13 1/8 inch. Just use google to convert from inches to centimeters. The one mark over on the ruler is 1/8th of an inch.

edit: One mark over is 1/16th of an inch, but these measurements are at 1/8th i would say.
 
13 1/8 inches x 25.4 mm/inch = 333.4 mm.
Code:
perl -e 'printf("%.1f", (13+1/8) * 25.4)'
333.4
The ruler is marked with eighths on one side and sixteenths on the other side.
2 sixteenths (2/16) is an eighth (1/8). 2 eighths (2/8) is a quarter (1/4). 2 quarters is a half (1/2).
 
13 1/8 inches x 25.4 mm/inch = 333.4 mm.
Code:
perl -e 'printf("%.1f", (13+1/8) * 25.4)'
333.4
The ruler is marked with eighths on one side and sixteenths on the other side.
2 sixteenths (2/16) is an eighth (1/8). 2 eighths (2/8) is a quarter (1/4). 2 quarters is a half (1/2).
Man i used to love programming in perl back in the late 90s when i was a youngster. I made all kinds of cool stuff. That was my favorite programming language ever and I got pretty decent with it.

Alas i have long forgotten almost all of that :cry:
 
Back in 1999, I bought a second hand Power Mac 9500 from a graphics designer, in order to start learning graphics design myself. This computer came with 2 graphics cards and 2 displays; an Apple Multiple Scan 14" with integrated speakers and a beautiful Apple Multiple Scan 20".

I loved this setup so much, I tried my best to keep it since all those years. It has not always been easy. The 20" display is so heavy and the plastic becoming brittle, pieces have been broken several times while moving it. Room was missing and it has been difficult to find a safe and dry place to store it. The result is that the state of that monitor kept degrading until one point were I tried to convince myself to bring it to recycling.

This display has a strong sentimental value to me, it was a dream comes true when I got it, so I kept it anyway. Now with some inspiration from @jmacz 's amazing repairs, along with some great help from @TekTherapy , I decided to give it a try at fixing it. I also made some room on my desk for it to go back next to the 9500.

Here is the display after taking it out of my garage:

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The first task was to fix that front bezel. The back cover is actually intact.

I have disassembled the plastics and give them a good clean under the sun of my garden.

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I kept the big broken plastics pieces together with some tape in the hope of gluing them back together one day. Some were broken since 2 decades.

The second step was to glue everything back together. I used some regular super-glue for that matter and it did the trick.

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The bezel was already looking a lot better! Even the sun made it look clearer, but that doesn't matter because I planned to paint it.

Next, I applied some filler, which is actually made for car body. It worked well and was easy to sand.

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Next. I sanded everything, then re-applied some filler where it was not perfect, then, re-sanding again. This took me several passes.

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At this stage, the bezel was feeling very smooth when touching with the hand so I thought it was a good time to paint it.

For the paint, I went o my local DIY shop and was lucky enough to find some paint with a color that is very close to the original Platinum gray color. I use the metal cover of my 9500 as a reference. This cover was painted and the color has not yellowed with time.

Here is the final result:

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There are still a few glitches and it was pretty difficult to get the original grain on the sanded parts but I got quite close and I am pretty happy with the look and feel.

The bottom part is not perfect either and I guess this is because I was worried to damage the small engraved icons under the broken area. Therefore, I didn't apply the filler very low and it's not completely aligned. That said, It is not too visible and I am so happy with the result!

Next will be about painting the back cover. It was clearer than the front bezel at first but now it is a lot more yellow!
This looks amazing. Do you happen to have the details of the paint you used? I'd love to have it for some 3d prints I'm working on.
 
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