Vibration protection for monitor parts?

pun84

New member
Joined
Oct 9, 2009
Messages
129
Reaction score
1
Location
New Jersey
Where can I get that white rubbery glue like substance that is used between fly backs, transistors/heat sinks etc.. ?

I recently had to change a bunch of parts on my monitor chassis, and ended up scraping most of it off.. now I have new parts on the board and they seem pretty loose..

I was thinking about using hot glue, but that seems like a very short term solution.

What do you guys use?
 
I don't use anything. It was used at the factory for shipping purposes, but here in home use, it's really not needed.

Heck, I repaired route stuff for a number of years, and it wasn't needed there, either. If the parts are loose, make sure that the bottom of the capacitors are touching the PCB. It sounds like you inserted the with the legs too high.
 
Well, its mostly a bunch of mosfets with & without heat sinks on them.. but they had blown totally out and the surrounding traces/board has been slightly charred. So now everything is sitting in slightly loose even with the legs all the way in ;)

I read around yesterday and found that people are using "Neutral Core Silicone Rubber" RTV? but, I can't really find a good source for it... and it looks like the DAP brand home depot sells is only rated for about 105F
 
Last edited:
if that's the case, there's some tricks that you can do..

I do this a bit on color drive transistors, since there's an array of WG monitors that have the solder pad/trace lifting problem. I also do it on the Hantarex Polos cause if you somehow in transit trying to put the chassis back in bend those transistors and they touch, they can pop the blanking circuit.

first make sure the legs on your transistors are as straight as possible. desolder the part out and just smash them flat in some needlenose pliers. this will ensure that your stuff goes in even. then what you do is you take the outer 2 legs on a transistor and you bend them at 90 degree angles, then bend the middle one the opposite direction. this will essentially "hook" the legs to tighten up against the surface and will prevent the pads/traces from moving, and it will make it feel very solid. be mindful though if there's nearby traces, you might have to cut some of the excess leg off so it doesn't touch just to be safe.

I agree with Peale though, you don't really need any of that stuff. it's also why when I do caps I make sure to pull the bigger ones as flush to the surface as I can to prevent them from bending at all. the smaller caps you can't really do this with anyway. and I try to stand them straight up, I hate when stuff gets bent.
 
Back
Top Bottom