Leaking capacitor tutorial

Post by **Eric D** » Sat Apr 28, 2007 7:41 pm

I finally got around to updating/finishing my leaking capacitor tutorial. If anyone follows any of my methods, and runs into issues, let me know and I will try to update the tutorial to cover possible solutions.

http://www.soundbuggy.com/Eric/Car%20Au ... index.html

vin78 · Post by **vin78** » Sat Apr 28, 2007 7:51 pm

ahhh, its finally finished...that amp looks familiar

Thumper88 · Post by **Thumper88** » Sat Apr 28, 2007 8:48 pm

ah...lacquer thinner, haven't tried that yet...

marko · Post by **marko** » Sun Apr 29, 2007 1:08 am

nice to see you work with a soldering iron again eric, awsome job as usual, it's these kinda threads that made me have a got at fixing my own amps when i started to tinkle with my own soldering iron

bruther · Post by **bruther** » Sun May 18, 2008 6:32 pm

Quick Question,
I'm replacing my caps on a M50 and when I tried soldering the new caps on I can't seem to get the solder to hold the cap leads down on the bottom of the amp. Does anyone have any ideas? I used the Kester 44 solder and did everything in the tutorial?
Any help would be greatly appreciated.
Brian

Thumper88 · Post by **Thumper88** » Sun May 18, 2008 9:10 pm

Can you post a picture? not sure what you mean...

bruther · Post by **bruther** » Sun May 18, 2008 9:37 pm

Sorry, i don't have my camera available right now. What I mean is when I apply the solder to the leads sticking out on the bottom of the amp board the solder only sticks to the leads and does not attach to the amp board itself. When i wiggle the caps the leads and the solder will wiggle in the hole. When I look at the tutorial it shows how Eric's solder is a pool that covers a little surface area of the amp. mine is just a ball of solder that only attaches to the lead.
Hope that helps.

marko · Post by **marko** » Sun May 18, 2008 9:48 pm

probebly using the wrong solder, i'm not familiar with that stuff but i use good old fasioned lead stuff as it flows nicely and it needs to so the solder goes through to the other side to make contact propely.

Thumper88 · Post by **Thumper88** » Sun May 18, 2008 11:01 pm

Are the pads still in tact?

If the pads are still there...

What kind of soldering iron are you using? Is the tip clean and tinned?
Kester 44 has lead, and is rosin core. It will do the job just fine.

Sounds like the pads may have lifted removing the old capacitors, or the soldering iron isn't transferring enough heat (either dirty tip or cheap $15 soldering iron).

bruther · Post by **bruther** » Mon May 19, 2008 6:37 am

Ok so I tried different types of solder and nothing has worked. It looks like on one of them the pads may not be there anymore. Is there a way to address that problem if the pads are no longer there?
Thanks
Brian

yesterdaysyouth · Post by **yesterdaysyouth** » Mon May 19, 2008 2:28 pm

isopropyl alcohol and a stiff brush (tooth brush) work well on cleaning the boards, and most people are more likely to have them laying around...

I have a hard time using wick on multiple layered boards, so I get out the shop vac. Heat and suck....

just some suggestions

ElToro · Post by **ElToro** » Tue May 20, 2008 3:05 pm

Eric D

Hey Eric,

You seem to know alot about PG amps...
I have an MS275 and an MS2250.

I know you have tips and trick to breathing new life in these amps and you might not want to divulge them, and that's ok with me...

I like to know what I can do to spruss them up.

I have some back ground in electronics but, I don't think I could rewire a transformer like you did with one of your amps...

Let me know...

Thanks

Carlos
Aylmer, Québec, Canada
Neer Ottawa, nations capital.

Thumper88 · Post by **Thumper88** » Tue May 20, 2008 3:26 pm

Might want to contact him out of the forums, pretty sure he was banned (Short Bus Driver).

Post by **Bfowler** » Tue May 20, 2008 3:27 pm

Eric hasnt been on the phorum for a little while, you might try emailing him directly

Thumper88 · Post by **Thumper88** » Tue May 20, 2008 3:37 pm

bruther wrote:Ok so I tried different types of solder and nothing has worked. It looks like on one of them the pads may not be there anymore. Is there a way to address that problem if the pads are no longer there?
Thanks
Brian

Just one of them? Are all of the leads doing the same thing? When you solder them is the tip touching both the capacitor lead and the solder pad?

Not much you can do with a lifted pad other than soldering a jumper wire in.

A quality soldering iron makes a world of a difference.

Leaking capacitor tutorial

Leaking capacitor tutorial

PG MS series amps.