| Phil Allison <pallison49@gmail.com>: Jan 29 03:39PM -0800 Drake Snow wrote: ============== > Title says it all. ** Not really. > about the size of a pin. I'm guessing that's for SMD. Other than the > original tip, the other four have never been used. What about solder, > thickness and alloy as well as iron temperature setting? =========================== ** Got any idea what the existing solder is ? Pb/Sn ? Pb free ? Sn/Ag ? Other? What are you thinking of using? 60/40 ? ...... Phil |
| legg <legg@nospam.magma.ca>: Jan 30 11:23AM -0500 On Sat, 29 Jan 2022 09:22:48 -0500, Drake Snow <sn4@comcast.net> wrote: >about the size of a pin. I'm guessing that's for SMD. Other than the >original tip, the other four have never been used. What about solder, >thickness and alloy as well as iron temperature setting? Thanks. If you're not worried about destroying the removed part, then it doesn't really matter - the focus should be on not damaging the printed circuit hardware surfaces and tracking. Cut the legs off the part and desolder them carefilly, one at a time. Dress the pcb surface carefully and solder new parts, one leg at a time, starting with a single leg to position the part properly. Use thin tin-lead flux-cored solder and a tip size that matches the job. If you want to save the outgoing part, without hot air desoldering, you can use a 2mill nickel-steel shim (removed from the old stick- on security devices) fitted into an exacto knife handle to separate desoldered pins one at a time, as the shim advances underneath each spot-heated pin. RL |
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