There are also very low temp solders made, e.g., ChipQuik (https://gokimco.com/chip-quikr-smd1...MIzfP4yYqh3AIVm4qzCh2JLguKEAQYAyABEgKFwPD_BwE). You don't need the entire kit. You add the solder to each pin in the usual way. Then proceed with #1 again. Hot air then works well for heating multiple pins at once.Thanks you!
Definetly my 2 solders are not enough. I tryed to remove all the tin with the 2 solders together, but even this way i am short of watts.
#4 is impossible, there is no way to reach to the pins.
I think that this is only possible adding more watts.
Here can you see the pins which i want to desolder. I know that It's not the best image in the world but the pins are visible.1: It looks like that heat sink is attached to a PCB that is soldered to the main board.
Thanks you! I think i can borrow a 200w solder station. If it doens't work, i will search for it. Thanks you againNot the electronics lab. I am a chemist. I meant chemistry (or metallurgy). Woods metal is a bit of a curiosity. We had a 5# can of it that was being discarded. I saved it from the trash. It's even on eBay. If you search on it, be sure to use the "-Tiger" modifier.
Here's a link o another list of low-melting alloys: https://en.wikipedia.org/wiki/Wood's_metal You probably want to avoid the alloy with thallium. It is mildly radioactive.
Had to look to see what "Woods metal" was. It's seems like it is the real name for Cerrobend. That I'm familiar with and over the years doing very intricate die making work have used. It is some amazing stuff, and was the way some very thin metal was machined before the advent of sinker and wire EDM.Not the electronics lab. I am a chemist. I meant chemistry (or metallurgy). Woods metal is a bit of a curiosity. We had a 5# can of it that was being discarded. I saved it from the trash.
You can back drill the two mounting screws -- probably even by hand given the cup on the end of the screws. However, a drill press would make it easier.Hi!
i'm not be able to remove the heatsink from the ic without desolder the ic first so...as mtripoli3 suggested heat the heatsink is a way to solve this...
This weekend i am going to meet a friend who has experience in the repairs field and has got a 100+ Watts solder iron.
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by Lianne Frith
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