Unrestored Classic II motherboard with leaky capacitors:
Getting ready to solder new capacitors (applying solder paste with a syringe). I made a mess of the foil trace for the + side of C3, and you might just barely be able to see that I've already mended it by soldering a tiny bit of wire in order to reconnect the new copper foil pad to three existing traces. The adhesive copper foil is sold as Datak Circuit Fix.
Done! Some of the new capacitors are sitting a bit skewed. Note that the original aluminum cans have a black stripe marking the - terminal, but with the new chip capacitors, it's reversed, and the stripe indicates the + terminal!
It works!!
I've got one more C2 motherboard to rework, and I think for that job, I will try the Chipquik SMD Removal Kit:
http://chipquik.com/newsletters/cq_new_june_2004.htm
Getting ready to solder new capacitors (applying solder paste with a syringe). I made a mess of the foil trace for the + side of C3, and you might just barely be able to see that I've already mended it by soldering a tiny bit of wire in order to reconnect the new copper foil pad to three existing traces. The adhesive copper foil is sold as Datak Circuit Fix.
Done! Some of the new capacitors are sitting a bit skewed. Note that the original aluminum cans have a black stripe marking the - terminal, but with the new chip capacitors, it's reversed, and the stripe indicates the + terminal!
It works!!
I've got one more C2 motherboard to rework, and I think for that job, I will try the Chipquik SMD Removal Kit:
http://chipquik.com/newsletters/cq_new_june_2004.htm