开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. Tinysa
  2. Topics

TinySA Ultra - screen fixings

 

Hi All,
?
I recently noticed a problem with the screen used in my TinySA Ultra. It was beginning to physically move from side to side within the plastic case.
?
The problem is that the screen assembly is secured in place along three edges by metal strips, and these are fastened to the PCB. The fourth edge, with the ribbon connectors, has no metal strip present.
?
The metal strips have small clips that engage with the plastic backplate of the LCD display, and over time the plastic tabs have worn away, allowing the screen to slide from side to side. As there is no fourth strip to stop this from happening, the movement puts additional strain on the Mylar PCB interconnection between the screen and main PCB.
?
The solution is simple, add just a few drops of "superglue" to hold the LCD in the correct position within the metal mounting frames.
?
This is not a big problem, but if you notice a slight movement of the screen, it may be worth checking, before it becomes any worse.
?
Regards,
?
Martin
 

Regarding possible gluing solutions please read this thread:


In short there are better solutions if you are willing to learn how to use epoxy glue.
Super glue is quicker but in the long term not so good. Also vapor deposits from glue will leave a permanent white mate non transparent layer around a deposit area.
You can read more details about experiences we had with it in the post I linked to.

What is not written in the post explicitly is that when superglue breaks it will permanently damage surfaces. So a better easy fix is hot glue, also mentioned in the post.


On Sun, Nov 24, 2024 at 1:21?PM Martin via <martin_ehrenfried=[email protected]> wrote:
Hi All,
?
I recently noticed a problem with the screen used in my TinySA Ultra. It was beginning to physically move from side to side within the plastic case.
?
The problem is that the screen assembly is secured in place along three edges by metal strips, and these are fastened to the PCB. The fourth edge, with the ribbon connectors, has no metal strip present.
?
The metal strips have small clips that engage with the plastic backplate of the LCD display, and over time the plastic tabs have worn away, allowing the screen to slide from side to side. As there is no fourth strip to stop this from happening, the movement puts additional strain on the Mylar PCB interconnection between the screen and main PCB.
?
The solution is simple, add just a few drops of "superglue" to hold the LCD in the correct position within the metal mounting frames.
?
This is not a big problem, but if you notice a slight movement of the screen, it may be worth checking, before it becomes any worse.
?
Regards,
?
Martin



--
SOFTECH, IGOR FEHER S.P.
Liminjanska cesta 96
6320 Portoro?
Slovenija
Tel: +386 41 872 601
 

I appreciate the comments, and understand the points being made. However, I think you need to see the actual fixing.
?
I used tiny dots of Gel superglue between the plastic backplate of the LCD display, and the rectangular holes in the existing metal retaining strips, where the clips are located.
?
The amount of glue required is miniscule, and in this instance is only required to stop the screen sliding within the clips, so I judged any risks to be minimal.
?
Regards,
?
Martin
?
On Sun, Nov 24, 2024 at 02:00 PM, Igor Feher wrote:

In short there are better solutions if you are willing to learn how to use epoxy glue.
 

Very good.
I forgot about the thicker jell even though we use it on our RC Planes and Helicopters. Much more controllable than the thin stuff.
Glad to here you got it fixed.
73'S?
Clyde KC7BJE?



On Sun, Nov 24, 2024, 12:42?PM Martin via <martin_ehrenfried=[email protected]> wrote:
I appreciate the comments, and understand the points being made. However, I think you need to see the actual fixing.
?
I used tiny dots of Gel superglue between the plastic backplate of the LCD display, and the rectangular holes in the existing metal retaining strips, where the clips are located.
?
The amount of glue required is miniscule, and in this instance is only required to stop the screen sliding within the clips, so I judged any risks to be minimal.
?
Regards,
?
Martin
?
On Sun, Nov 24, 2024 at 02:00 PM, Igor Feher wrote:
In short there are better solutions if you are willing to learn how to use epoxy glue.
 

I got Gel CA glue overlooked somehow. I'll try it out. There is another CA glue that I like and that is one that is like normal non-viscous CA in every aspect except that it never dries by itself unless you apply physical force, then it activates and hardens. It works really well and it also has compounds you can add to it to alter its properties. Has no solvents and will glue anything from plastic, metals, wood, rubber, ABS etc. I hope it is not against the rules to post the name of the brand, since they are only ones making it so you can just google the name to get to the store. Brand name is Pascofix.

On Sun, Nov 24, 2024 at 10:08?PM Clyde Lambert via <clyde.lambert=[email protected]> wrote:
Very good.
I forgot about the thicker jell even though we use it on our RC Planes and Helicopters. Much more controllable than the thin stuff.
Glad to here you got it fixed.
73'S?
Clyde KC7BJE?



On Sun, Nov 24, 2024, 12:42?PM Martin via <martin_ehrenfried=[email protected]> wrote:
I appreciate the comments, and understand the points being made. However, I think you need to see the actual fixing.
?
I used tiny dots of Gel superglue between the plastic backplate of the LCD display, and the rectangular holes in the existing metal retaining strips, where the clips are located.
?
The amount of glue required is miniscule, and in this instance is only required to stop the screen sliding within the clips, so I judged any risks to be minimal.
?
Regards,
?
Martin
?
On Sun, Nov 24, 2024 at 02:00 PM, Igor Feher wrote:
In short there are better solutions if you are willing to learn how to use epoxy glue.



--
SOFTECH, IGOR FEHER S.P.
Liminjanska cesta 96
6320 Portoro?
Slovenija
Tel: +386 41 872 601

1 - 5 of 5