Connecting the Digitizer to the PC and UMC20xHD
Using the supplied multi cable,
1) Connect the 15 pin D-type connector to the back of the Digitizer.
2) Connect the smaller 9 pin D-type connector to the serial port of the PC or the USB to serial adaptor.
3) Connect the ‘A’ side jack plug to ‘Input 1’ and the ’B’ side jack plug to ‘Input 2’ of the UMC20xHD.
Stereo users connect the ‘AL’ jack plug to ‘Input 1’ and ‘AR’ jack plug to ‘Input 2’ of one of the
UMC20xHD’s. Leave the ‘B’ side jacks unplugged at this moment.
The gain controls on the front of the UMC20xHD can be used to
give a little extra level if required but ensure the level meters in
the Graff software do not hit the top otherwise distortion will
be introduced.
First run with the Digitizer
After installing the Graff Digitizer software from the ‘Digitizer 6.18’ CD, you can run the program from the
shortcut icon created on the desktop. When the software runs for the first time it needs to find the
Digitizer com port and assign the soundcards. This is done by clicking on the ‘About’ link at the top of the
window.
From here you can select the com port that
the Digitizer is using. Select each one in
turn until you see the information about
the Digitizer displayed in the box below the
com port selector. The soundcards will be
automatically assigned on exit from this
page. Mono users are now set up and ready
to go.
For a stereo system, the software assigns
one soundcard per side but we need to
establish which soundcard is being used for
which side:
For the stereo Digitizer, Digitize a tape and see if the A side level meters show. If they show then plug
the B side jacks into the other UMC20xHD. If the B side meters show, then swap the A side jacks into the
other UMC20xHD and put the B side jacks into the first UMC20xHD.
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