Four Block Controller Card
Rev. January 1998
Building instructions
Printed circuit board
The blck4r6 PCB supports four blocks. If you look close at it, you will
see that it is actually four single block cards except that duplication
of common connections has been eliminated.
Printet circuit board layout from soldering side:
Unfortunately, both Netscape Communicator and Microsoft Internet Explorer does not handle
GIF pictures very well. Therefore, I suggest that you download blck1r6.bmp instead.
Load it into Windows Paint and print it on a Laser Printer with size 97% (This is how I do it
you might need to select another size) Then you are ready to photocopy it onto the PCB, and
etching. After etching you need to drill all the holes. I use 0.7 mm holes, except for the
connectors where I use 1.2 mm.
blck4r6.bmp
Soldering
This is a picture of the component side of the PCB.
Wires are shown as black lines - only solder at each end of wire.
You have now made all necessary connections before proceding with
the instruction for mounting components for four one block controller's
BLCK1R6 - Block Controller 1 rev 6
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