A blog about my music, my studio and my DIY projects.
08 October 2010
SammichSID (Part 2)
I worked some more on the SammichSID. Here is a picture of the power regulators. There are actually two heat sink that are mounted on top of each other and on top of that the power regulators are mounted. Between every layer you have to put non-conductive heatsink pasta. That is really sticky stuff that you don't want on your clothes and on the rest of the PCB. So you are advised in the documentation to practice the whole construction first without the pasta. Well I hope I did this right.
Then you have to solder the interconnections between the two PCB's. They are actually not soldered together directly but there are connectors on both ends. But you are advised to put them in place and mount the PCB together with the supplied material. Make sure they align very well and then solder the connectors. When that is done you can disassemble the two PCB's again so that you can start working on mounting and soldering the components on the front panel PCB.
Here is a picture of the finished front panel PCB. There are some components that have some special instructions as well in the documentation because they are right above the heat sinks on the base PCB. You have to solder them from above so that you can cut the leads on the bottom of the PCB as short as possible. In this way you can avoid them touching and short circuiting anything. It is all described very well in the documentation, but you DO need to read it ;) The next thing left to do now is solder all the leds. I'll probably start working on that next week.
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