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Lifted pad... best way to fix?
- Thread starter MJ313
- Start date
That's good advice Unknown_K. I have a similar problem on an SE/30. I will try that tomorrow. Elfen I was also recently thinking about that since there's nothing conceptually preventing that as a failsafe - I guess it's just a little sloppy, maybe. Good luck MJ313.
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Thanks for all the advice guys- much appreciated! I do still have the pad... it's attached to the old cap. I will go with Unknown_K's suggestion. 
Elfen- I have some panasonic lytics I am using. I recapped a IIsi with them and that works fine, so I am marching onwards.
archer174- when you say you would solder the capacitor across the via... what exactly does that mean? Do you mean literally, solder the new cap leg to that via... right to the top of it? Thanks!
Elfen- I have some panasonic lytics I am using. I recapped a IIsi with them and that works fine, so I am marching onwards.
archer174- when you say you would solder the capacitor across the via... what exactly does that mean? Do you mean literally, solder the new cap leg to that via... right to the top of it? Thanks!
I keep thinking that the "via" you are stating is the jumper/solder filled grommet to the other side of the board and not the 6522 "VIA" or other chip Mac uses (VIA = Versatile Interface Adapter chip, the 6522 is also used on the 8bit Commodores and Ataris).
Archer174 is correct on that. My "problem" is that I use SMD/SMT caps, so soldering to the remaining pad, I have to solder a jumper wire from the other end of the cap to the via.
MJ313 - congrats on the IIsi recap. Lets hope you are successful here. BTW - what Mac Board is this?
Archer174 is correct on that. My "problem" is that I use SMD/SMT caps, so soldering to the remaining pad, I have to solder a jumper wire from the other end of the cap to the via.
MJ313 - congrats on the IIsi recap. Lets hope you are successful here. BTW - what Mac Board is this?
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Correct. "vias" are conductor lined holes in the circuit board which electrically connect traces from different layers of the board to each other.
A "blind via" is a via which penetrates one or more layers of the circuit board, but not all of the layers of the circuit board. So it does not go all the way through.
In this case, there's a nice fat via just a few millimeters north of the lifted pad and a fat trace that once connected the via to the pad. So there are many options for recreating the broken connection.
I had no super glue for the pad! CA glue, gorilla glue, all kinds of glue but no crazy glue. So plan B went into effect.
I scraped off some of the trace... and soldered the cap right to it. lol I have no idea if this works because I have to solder a couple more caps on and I damn near went blind trying to do this and I am shutting down my eyes for the night. I love how it's called a fat trace... cause even though I know it's fat it's still really small to try and carve up
I scraped off some of the trace... and soldered the cap right to it. lol I have no idea if this works because I have to solder a couple more caps on and I damn near went blind trying to do this and I am shutting down my eyes for the night. I love how it's called a fat trace... cause even though I know it's fat it's still really small to try and carve up
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The cap right above the graphics processor eats the via/traces at that point. That area goes to RAM. Uniserver sent me one with a Mac IIx I got from him, fixed it and works perfectly.
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This is fascinating stuff. I really need to learn how to do this.
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