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Text File
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1989-10-19
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2KB
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35 lines
U7READER Printed Circuit Board
These files are DXF versions of the U7READER keypuller
circuit for 018-019 series VC 2 boards. They contain schematic
and printed circuit board layout diagrams that can be imported
into any program that can handle DXF conversions (such as
Autocad). A few minor changes were made to the original ORCAD
schematic diagram such as renumbering IC reference designators to
eliminate a duplication, and adding eleven bypass capacitors to
reduce noise on the VCC line. The files are as follows:
U7LAYER1.DXF Circuit traces on side one.
U7LAYER2.DXF Circuit traces on side two.
U7SILK.DXF Silkscreen layout of side one.
U7DRILL.DXF Drill template for the board.
U7READER.LST Parts list.
U7READER.DXF Schematic diagram.
This circuit appears to be a variation of the New Wave key
reader circuit that is described elsewhere on this BBS. That
circuit uses certain settings of the five DIP switches to match
the particular VC model series. It also contains a WARNING that
INCORRECT SETTINGS CAN CAUSE YOUR KEYS TO VANISH! This circuit
probably has the same dangers, so watch out. Whoever designed
this particular circuit may be able and willing to help us on its
use.
If anyone has diagrams of any other key reader/writer (or
any other useful circuit for that matter), I would be happy to
produce PC layouts such as those contained in this archive. Just
leave a message anywhere in the Satellite section of this BBS
addressed to ALL, and subject PC BOARDS. I'll respond with a
private message.