ETS-Lindgren 8100-040, User Manual, Page: 10 / 44

10
Maintenance www.ets-lindgren.com
Maintenance Recommendations
In general, the amplifier does not require any maintenance due to its solid-state
amplifier design and overrating of all components under thermal stress.
The fans have a lifetime

40,000 h; this results in a lifetime of 5 years even with
permanent operation.
Cleaning and care of the RF connectors are to be performed according to the
regulations valid for N-series connectors. All mechanical and electrical specifications
are guaranteed for at least 500 plug-in cycles.
Troubleshooting
If the green control light inside the mains switch does not light after turning mains on,
please check the following.
No response after switching Check the fuses at the line input at the rear
the mains switch on: panel of the amplifier.
Check the mains voltage at the mains
connector.
If a fault message will be displayed, the following should be checked:
Display: Interlock External Check the connection to the external
interlockswitch or jumper in the interlock
connector (see Figure 2 on page 17 and
Figure 3 on page 18).
Display: Temperature X Check whether the airflow is obstructed.
Check if the internal blower works.
Check if the ambient temperature is more than
+45 °C.
Allow the instrument to cool down and try to start
again.
Check if the Fault message persists.
Display: PowerSupply X Fault of one or more output voltages of the
indicated power supply X.
Switch off the amplifier and try to start again.
Check if the Fault message persists.
Display: TTL or GPIB or LAN Press the Control key until the display
indicates LOCAL. The amplifier can now be
activated locally.
If a non-permanent error message is being displayed it has to be confirmed by
pushing the Standby/Operate key at the front panel before the fault status will be
unlatched.