TELIKOU
FM804 Eight Channel 4-wire Matrix Control Station
6
20. Extension Connector (DB9)
The definition of connector is as follow
Pin 1 --- Audio Output
Pin 2 --- Digital Earth
Pin 3 --- Control Signal
Pin 4 --- 12V Analog Power
Pin 5 --- Audio input
Pin 6 --- Analog Earth
Pin 7 --- Program Audio In
Pin 8 --- 12V Digital Power
Pin 9 --- Analog Earth
21. DC Power Input
Input Voltage: 16V-24V, Electric Current: Less than 800mA
22. Ground Terminal
The Ground wire connects to terminal
Note: Please be sure to connect ground well for the personal safety and devices working.
III
：
Troubleshooting
Problem
Cause
Solution
Power LED
wink
Short circuit inside
Send them to dealer for
repairing
Excessive
crosstalk
1
、
High DC resistance at cable end.
2
、
Headset cables are not well connected
1
、
Press and connect the
RJ-45 plug again
2
、
Check
and
connect
again
Hum or
Buzz
1
、
Without connecting to ground or bad
earthing
2. Inductive pickup caused by close proximity
of this main station or connected remote
stations to power lines or transformers.
3. Intercom line cable is not wired properly;
the shield of microphone cable is not connect
-ed to Pin-1 of 3-XLR.
1
、
Do earthing well
。
2、
Relocate the offending
unit.
3. rewire or change the
cable.
channel
volume is
too light
or distortion
Outside signal level too small or too large
Adjust input level at the
rear panel.
