12
TL-A80-20W User Manual
www.tlnetworx.com
7.
Troubleshooting & Maintenance
1)
When there is no output audio:
l
Check if there is any signal at the input.
l
Check if there is any signal at the output.
We can check these by using an oscilloscope or a multimeter. If there is no signal
input/output, the input/output cables may be damaged or the connectors loose,
please change the cable.
l
Check if the correct input is selected.
2)
If the
POWER
indicator doesn’t illuminate or the unit does not function at all, please
make sure the power cord connection is good and the circuit is energized.
3)
If static or noise is present in the output audio, please make sure the system is
grounded well.
4)
If the static becomes stronger when connecting the audio connectors, the unit is
grounded improperly.
5)
If the TL-A80-20W amplifier cannot be controlled by the keys on the front panel,
RS232 port or IR remote, the unit may be damaged. Please contact reseller for
replacement.
