52
Troubleshooting
Problem
Checklist
No power to Keyboard
¾
Check USB connection.
¾
If you are using the 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”,
Chapter 6 Basic Programming and Operation
.
Keyboard responds to
some, but not all buttons
¾
Check if Keyboard keys are conflicting with other
applications. See
1.6 Shortcut Key Conflict Test
.
Message "Connect fail"
displays on LCD
¾
Verify that the selected ID in Keyboard & Joystick Controller
is consistent with the DVR / CMS ID. See “Changing
GV-System / Control Center ID”,
Chapter 6 Basic
Programming and Operatio
.
¾
Check that the COM port setting in Keyboard & Joystick
Controller is correct. See Step 5 of
1.3.4
Installing USB
Drivers
.
¾
If multiple GV-Systems / GV-Control Centers are
daisy-chained together,
(1) check connections among GV-Systems / GV-Control
Centers, and
(2) turn on Terminal Resistance to increase frequency
response.
¾
If you are using the wall terminal block, make sure
(1) terminal screws are not loose, and
(2) the cables are attached to the appropriate terminal
screws. See
Chapter 5 Wall Terminal Block
.
Keyboard LEDs are not
visible
¾
Yellow POWER LED: check the power source.
When you press a key and the RX or TX LED does not light up,
¾
Red RX LED: check the connection between the Keyboard
and GV-System.
¾
Green TX LED: check if the Keyboard is malfunctioning.