SERVICE MODE
GEC 880 Service Manual
12
1.2/0111
Parameter Reset
It is possible to reset all parameters to the factory presets. For this the following procedure is carried
out:
Unplug the power supply
Press and hold down the following buttons
+
+
Reconnect the power supply
The display shows
RESET
for one second.
Examples
Examples for setting the correct values:
Situation:
The internal microphone of the GEC 881 / GEC 882 is picking up too much noise from distant sources.
A characteristic which is more noise cancelling is desired.
Remedy:
Increase the value of parameter SZI. Be careful: the speaker has to reduce the distance from
his mouth to the internal microphone now.
Situation:
Bad sound quality during communication.
Remedy A:
Enter Service Mode and check if all parameters are set to their default values. The default
values provide the best sound quality and should only be changed on special demand. Use the
”Parameter Reset” if required.
Remedy B:
Check if all cabling is correct. Most importantly the GND connection (shield-GND
connected to pin 8 of the modular socket) and if the RJ45-cable is plugged in the station securely.
