Digitus Biometrics dbNEXII, Руководство пользователя

Страница: 25 / 27

Digitus Biometrics, Inc.
User Manual - Models: dbNEXII, dbNEXIII, dbSAI, dbTRI
Page 25 of 27
Solution
There may be a wiring problem between the Head Unit and Control Unit. Check the
cable that connects the Head and Control Units together. Ensure the cable is wired
"straight-thru", i.e. Terminal A on the Head is connected to terminal A on the Control
Unit, terminal B is connected to terminal B, etc. The 2 wires that supply power are
terminals A and B.
There is fuse between the Control Unit and Base Unit. The fuse may have blown.
Remove the fuse from the fuse holder, located on the main PCB inside the Control
Unit. The fuse is labeled "HEAD 1A-FAST". Check the fuse with a Ohm Meter to see if
it has blown. Replace the fuse with a 1Amp Fast Blow Fuse if necessary.
If neither of these solutions solve the problem, contact your vendor for support.
Control Unit Problems
Problem
The Control Unit does not power up.
Solution
The external power-supply may be bad. Using a Volt Meter, check the input voltage
on terminals V- and V+ on the POWER connector is the Control Unit. If you are not
seeing the specified voltage output of the power supply, the power supply needs
replacing.
If the input voltage is correct, the input fuse may have blown. Remove the fuse from
the fuse holder, located on the main PCB inside the Control Unit. The fuse is labeled
"BASE 2A-SLO BLO". Check the fuse with a Ohm Meter to see if it has blown. Replace
the fuse with a 2Amp Slow Blow Fuse if necessary.
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Problem
When you power the Control Unit up you hear a constant clicking sound from a relay
inside the Control Unit..
Solution
Immediately power the Control Unit down and check that the battery cables have not
been reversed. The Positive side of the battery (RED in color) should be connected to
the B+ terminal on the POWER connector. The Negative side of the battery (BLACK
in color) should be connected to the B- terminal on the POWER connector.
If the battery is wired incorrectly, correct the problem and power the Control Unit up
again. Depending on how long the unit was powered up with the battery cables being
reversed, permanent damage may have occurred to the Control Unit and/or battery.
If the Control Unit will not power up, even after changing the input fuse, contact
your vendor for support.
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