In SX Microcontrollers, SX/B Compiler and SX-Key Tool, tbag wrote:

I talked with tech support today. They referenced the schematic for the protoboard: http://www.parallax.com/dl/docs/prod/boards/SX48-52ProtoBoardDoc.pdf
Basically collect the parts, build it yourself, which I am fine with. I could use some help sorting through the parts though. If I know I am going to use a 75MHz resonator, I won't need the X1 or X2 socket or Cx sockets. If I put this on a PCB I can just solder the resonator in with the appropriate spacing without a socket. I only need a two state switch to go to digital logic. I'm not using servos. I'LL DEFINITELY NEED A RESET SWITCH ... HA HA HA.

(2) Questions to Paul, Kramer,or anyone else

1. How the heck do I solder the SX48BD assuming I have a PCB made. Tech support said he has done it plenty. Can anyone help me with this?

2. I don't understand why there is an LM2940 on the board if the there is already a regulated PS from the wall. And if I use a higher input voltage (my current setup uses 40V) do I need to change out the 2940? 

Much appreciate anyone who could give me a clue on these two questions.

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