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Replacing 1/4" Input On TransTube Amp Question

T

tabdog

Feb 9, 2011
1,447
133
#1
I bought a Peavey Studio Pro 112 off Craigs List for $25.

The only problem is that the High Gain input is broken,

4-2-2.jpg


I have a new jack on order. I am worried about soldering
on the circuit board,

4-5-1.jpg


4-5-2.jpg


Two of the post on the jack were broke, so I just cut
the other two post off,

4-5-3.jpg


4-5-4.jpg


Does anyone have any tips on cleaning out the old solder?

Should I even try???

Or should I just heat it up and push the old post pieces
out with the new post on the jack?

Will the board melt?

Do I need some kind of heat sink?

Thanks for any help,

David
 
#2
You need some kind of way to remove the old solder. You can use a "solder sucker" or the old fashioned de-soldering braid from Radio Shack.

The old posts should fall out during the de-soldering process. Needle-nosed pliers can be used if the posts are stubborn/bent, but use gently.

All the old solder should be removed and cleaned up. You want the pads to be as clean as possible before soldering the new jack.

Is this your first time soldering?
 
#3
You want either a desoldering braid or a "solder sucker". The first is some braided copper that you press to the lump of solder and heat with your iron, and the solder wicks up into the braid. The second is a small vacuum pump that quickly "inhales" hot melted solder. Neither one is expensive.

The board will not melt, but you do want to take care not to hold the iron on there too long, as that can damage the traces (the conductive metal pathways) on the board. Go in hot, for short periods of time.

No heat sink is needed (and there would be no way to clip it to the hot spot anyway).

Edit: beaten to it by TheFantod. :)
 
#4
TheFantod said:
You need some kind of way to remove the old solder. You can use a "solder sucker" or the old fashioned de-soldering braid from Radio Shack.

The old posts should fall out during the de-soldering process. Needle-nosed pliers can be used if the posts are stubborn/bent, but use gently.

All the old solder should be removed and cleaned up. You want the pads to be as clean as possible before soldering the new jack.

Is this your first time soldering?
Click to expand...

Thanks for both responses.

Hay Fantod,

No, this is not my first time soldering. But I have not
soldered on circuit boards.

I have done silver soldering in refrigeration and some
automotive soldering.

I have soldered wires, pickups, pots, resisters, etc.

I am on my way to Radio Shack now to get a "solder
sucker" or a desoldering braid.

I have seen those suckers, but never used them. Just
now learned about the braids.

I always used rag or blew on it, or something els dumb.

But, thanks again.

I'll let you know if I screw it up or not,,,, lol

David
 
#5
I got a solder sucker at Radio Shack and de-soldered
the terminal. Plus I got the little ends out the holes.

I don't know where the scratch came from.

4-5-5.jpg


4-5-6.jpg


Do you think the scratch will be OK?

Thanks,

David
 
#9
Deathblade Eric said:
Shouldn't be a problem unless you've actually broken the track (doesn't look like it though).

If you've got a multi-meter, just do a continuity check between the two pads at each end. If it does turn out to be broken, it's a pretty simple repair using a very short length of solid wire soldered over the break.
Click to expand...

Ten Four Eric,

Thanks a million.......

As if I had a million,,,

I guess you know, if I had any money,

Some guy would be doing this for me.

I just can't see spending $100 to get a
$25 amp fixed....

Thanks again, it's good to know how to
fix it if I need to.

TB rocks,

Tabdog
 

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