I'm trying to replace 24awg leads with some longer 22awg to give me some room to work with, but I'm having trouble desoldering Simon's joint. I'm working nervously because the pads are so close to like 10 SMD components that I don't want to fry or dislodge. Going at it with a chisel tip on the iron because it's probably the heaviest I've got, but it's not budging. Any advice?
Quarter for scale
by MarsupialTasty3135
![[Review] Sofirn ST2](https://www.edctips.com/wp-content/uploads/2026/03/xaxg2gjrszng1-770x515.jpg "[Review] Sofirn ST2")
2 Comments
What size chisel tip are you using? 2mm will work, it looks like you don’t have enough heat, turn up the iron 650-700f, also the +/- pads are ground planes so you need to apply the tip and wait
Heat up to 700f, put a little flux on the joint before heating, and make sure the tip is clean and tinned… Not sure what else it could be.
The PCB and wire will both sink some heat.