Need some ms-2125 help...

[vwdude]

So I got this amp for a decent price. Needed to be recapped to I took it apart. Looks like liquid got in there and so e of the components are burned. I already ordered them but wanted some opinions...






Ok so here's what I have in question...are these normally discolored or should I plan to replace?

[trickyricky]

That's flux.....those components were replaced at one point in the amplifiers history, perhaps by factory (alster). I wouldn't worry about flux, test the components and I bet they are all good. Flux doesn't cause shorts/continuity as its non-conductive and most of it is "clean free" meaning it won't damage solder pads or corrode traces.



Get some 99% Isopropyl alcohol and with a small brush (hog's or horse are best) or even with a toothbrush scrub that flux off if it bothers or concern you. All that flux will come off.


If any of the solder joints are dull/cold, use a scratch pen and lightly scrub the joints and see if there any hair line cracks with a magnifier loop or heat damage.

[Eric D]

Take a Q-tip and some lacquer thinner and see if the dark color goes away.

[vwdude]

Yea I'm familiar with flux... It comes from a flux capacitor, right?








lol yea I know I use flux too. I was just worried about these terminals as they seem more burned than usual flux solder joints. I wanted to put the amp back together once and not have to completely take it apart again.

Do I need to use sili pads or can I use kapton tape and thermal paste? If I need to use sili pads then I'll need to order a crap load more.

[trickyricky]

You can use kapton insulator w/thermal compound..or..silpads for a more "original/stock" look.

[vwdude]

Oh ok, cool. I'll have to think about what avenue I want to go down.