Re: Si5351A blown (IC1) QCX transceiver.
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Lots of good SMD soldering equipment advice in this thread.
But some reassurance for some of you who don't have all this stuff. Never fear! It's still possible. I'm proof of that.
I don't have any flux. I don't have a desoldering station or any special soldering iron. I have a cheap 60W temp controlled iron with a 3mm chisel tip.
To remove and replace an 8-pin SOIC such as the OPA2287, I first cut the four pins along one side with wire cutters. Then lift that side of the chip and wiggle up and down... after a couple of wiggles the pins on the other side break off cleanly at the chip body. Then use the soldering iron to remove the 8 pin remnants and clean up. Squeaky clean can be done with desoldering braid (or I hear, coax outer braid) but is not totally necessary. Then solder in the new component. Of course a 3mm chisel bit is too big but just rotate it 90° and use a corner, it works fine.
General rule when replacing components: don't try to save the component, it is defective anyway (otherwise why are you replacing it?)... try to save the PCB.
I solder components down to 0402 by hand like this.
If soldering a fine-pitch IC like the Si5351A or an STM32 in LQFP format for example - i use solder paste spread on with a small screwdriver or any convenient sharp thing (since for me at least, the syringes get blocked almost immediately after the first use). And a dollar store type very cheap hobby hot air gun, held under the board for about 30 seconds.
Solder paste has a limited shelf life but I usually find I can exceed it by quite a factor and it still works fine.
On some occasions such as when the bottom side of the component also has components on it, the hot air isn't possible... then I use the usual soldering iron - which of course bridges multiple pins together - then tidy up the bridges using desoldering braid to soak up the excess.
So remember - for those of us poor underprivileged souls - sometimes a bit of perseverance and patience can substitute for the proper $$$ equipment.
73 Hans G0UPL