DRO Design discrepancies.

Hi,

I was looking with great interest at Bill Todd's DRO designs, and I really want to build this one - I am quite at home with electronic assembly and PCB manufacture - but although an impressive amount of work has obviously gone into the design, the information downloaded appears to be fragmented and inconsistent, therefore I am having problems verifying schematic to PCB layout.

Having downloaded the Zip package for Version 1.2.05, I found the PCB layout PDF file, but there was no schematic. I downloaded the schematic separately from the forum, but one does not verify with the other. The PCB layout has numbered components and nets given, the schematic has no numbering - just question marks. I have tried tracing by eye, but there are several discrepancies. eg pin 7 of the DB9 goes nowhere on the schematic, but is connected on the PCB; there are 2 diode cathodes to 3.5V on the PCB, but only 1 on the schematic; there are 2 resistors to DB9 pin 4 on the PCB but only 1 shown on the schematic. I gave up at this point as clearly the schematic that I have is not the one that the PCB was netlisted and routed from.

Is there a schematic and PCB layout that are a matching set somewhere, or alternatively a definitive schematic somewhere that I can confidently use to netlist and route my own PCB from?

I really don't want to spoil a good project or waste time and money by going off half cock, so I trust some kind soul will be able to point me in the right direction.

Thanks.