User Manual

Troubleshooting
19
9
9. Troubleshooting
Problem Checklist
No power to Keyboard ¾ Check USB connection.
¾ If you are using the RS-232 port or RS-485 port for
connection, make sure to connect the power adaptor.
Keyboard has power but
does not respond to any
buttons pressed
¾ Check that Keyboard is not locked. See “Getting started”,
6. Programming and Operation on page 15.
Keyboard responds to
some, but not all buttons
¾ Check if Keyboard keys are conflicting with other
applications. See 8. Shortcut Key Conflict Test on page 18.
Message "Connect fail "
displays on LCD
¾ Verify that the selected ID in Mulitcam Controller is
consistent with the DVR ID. See “Changing DVR ID”,
6. Programming and Operation on page 15.
¾ Check that the COM port setting in Mulitcam Controller is
correct. See Step 5 of 3.1 USB Driver on page 8.
¾ If multiple GV-Systems are daisy-chained together,
(1) check connections among GV-Systems, and
(2) turn on Terminal Resistance to increase frequency
response.
¾ If you are using the wall terminal block, check
(1) terminal screws are not loose,
(2) the RS-485 + and RS-485 - cables are attached to the
appropriate terminal screws. See 2.4 Wall Terminal
Block on page 6.
Keyboard LEDs not
visible
¾ Yellow POWER LED: check the power source.
¾ When you press any key, you can't see the RX or TX LEDs.
¾ Red RX LED: check the connection between Keyboard and
GV-System.
¾ Green TX LED: check if Keyboard is malfunctioning.