I have googled but I did not find a response to my question... Here
goes:
I am going to repair a Gottlieb Sys80 Driver board that has 3 big burn
marks on the solder side, below the 3 big metal transistors. The board
color is no longer green, but brown and black (and it smells burnt as
well).
Is there any way to remove these burn marks ? Thanks.
-Michel
Well, if the circuit board material is scorched, so be it. If I can get
the board to work correctly, it's okay. I was just wondering.
-Michel
Burned is burned. You can take a razor blade and scratch away the
black stuff, but there's no way to remove that "lightly toasted" look.
But you could always paint over it with green enamel.
-Mark
--
http://pinballpal.com/
"michel.o...@REMOVETHISgmail.com" <michel.o...@gmail.com> wrote in message
news:1141313771.6...@e56g2000cwe.googlegroups.com...
I did it by using a combination of Novus2 and alcohol with a tiny
(1/4") cup brush in my Dremel tool. The spinning tool and solvent were
used to scrub the carbon off.
Edward Cheung
no, you cant, i do this everyday, and see alot worse, trust me.
as long as the solder runs arent damaged in the burned area, it should
be ok, but i would have to see it, to tell you for sure.
It might also be a good idea to mount a socket for the TO3s and a
separate heat sink for each one. Prevents the board from getting
scorched again. Mount the socket on standoff screws above the board.
Jim
I checked your before and after photos but I can't help to notice that
the end result looks greasy... Is that caused by solder flux?
Your website looked familiar, but then I found out why... I used the
same technique you used to make a playfield rotisserie! Thanks for the
idea!
-Michel
On your last note, that rotisserie I made ($40) has served me well. I
am glad to hear someone else using the idea.
Edward Cheung
My problem was that my desk was not long enough to attach the wooden
bars to it. So, I bought a large rectangular piece of wood, mounted 2
wooden bars under it over its entire length (for strength), and that
whole piece is put on my desk. It's heavy and rigid.
On top of that, I build 2 upside down T structures out of wood on which
I attached the plumbing parts, like you did. Those T structures are
fixed to the big rectangular piece of wood using wing bolts. The
playfield then goes between these 2 T structures. Looks wonderful! :-)
-Michel