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Topic:
DIY TV repair question.
This thread has 4 replies. Displaying all posts.
Post 1 made on Saturday October 22, 2016 at 17:13
Grasshopper
Long Time Member
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May 2016
133
I'm sure plenty of you guys (and gals) have taken on the task before. I decided I was going to get into it since every now and then we take away tv's that have gone bad. After one nightmare (that I may have unintentionally bricked myself during testing, don't ask) I decided I was going to stick only to power supplies.

None of that information was necessary or pertinent to my intent of creating this thread. You're welcome for wasting your time. ANYWAY...

I re-capped a power supply for a tv for my dad and it works just fine. I have another one for myself that I re-capped, but...originally there was some sort of thermal compound between some of the capacitors, I assume because they might be generating too much heat in their location (or something else in that location, so it was there to protect them from that). So, I ordered some thermal compound and applied it. The original stuff was hard. Come to find out, the stuff I ordered doesn't dry. I'm wondering if this is going to be an issue, if I need something completely different? I've had the tv for a year and a half, and haven't turned it on because I'm worried that the compound I used might be the wrong stuff. The stuff that was originally there was in contact with electrical connections so I assume that it was safe. I just wonder if this never drying stuff might conduct electricity or something and wipe out the board. Got any answers? Thanks!

J
Everyone should learn something new every day.
Post 2 made on Saturday October 22, 2016 at 18:31
King of typos
Loyal Member
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Posts:
June 2002
5,275
The original stuff was actually just glue of some sort. It basically helps to cut down on vibrations caused by movement during shipping and during operation.

What you put on there is something that you may want to wipe off. As it maybe conductive.

Check this post out.
[Link: electronics.stackexchange.com]

KOT
Post 3 made on Saturday October 22, 2016 at 20:14
buzz
Super Member
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Posts:
May 2003
4,366
Unless the assembly will be subject to excessive vibration, you can skip the glue. It's mainly intended to reduce shipping damage and may provide stability during the build process. I'm leary when the stuff turns brown because it is often conductive at that point -- conductive enough to cause problems of its own. I've seen lots of older units, particularly Keocera, come in with "noise" complaints or in protection. First I scrape off that glue, even before I turn them ON. If nothing is obviously burned, they are usually OK at that point.
Post 4 made on Saturday October 22, 2016 at 22:06
tomciara
Loyal Member
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Posts:
May 2002
7,958
Mitsubishi VCRs had that glue-turned-brown-turned-conductive stuff.

OP you did not need your goo, but no worries leaving it. It does not conduct electricity.
There is no truth anymore. Only assertions. The internet world has no interest in truth, only vindication for preconceived assumptions.
OP | Post 5 made on Sunday October 23, 2016 at 10:05
Grasshopper
Long Time Member
Joined:
Posts:
May 2016
133
Thanks guys. And thanks KTO (see what I did there?) for the link. Very informative.
Everyone should learn something new every day.


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