Maintenance; Factory Default Settings - Lab.gruppen PLM 20K44 Operation Manual

9. Appendix

9.2. Maintenance

During normal operation this devices provides trouble-free service. If the LCD or front panel display requires
cleaning, use a soft cloth only; do not use solvent cleaners. The dust filters on both sides of the front panel, behind
the grilles, should occasionally be removed and cleaned to ensure maximum airflow through the device.
Disconnect the unit from mains power prior to removing dust the filter, and ensure the dust filter is replace prior to
turning the unit back on.
Do not use sharp or metal objects to remove the dust filter, and be careful that the implement used to remove the
filter does not enter the device.
In extreme cases it may be necessary to clean the inside of the device. This procedure should only be carried
out by qualified service personnel. This may be necessary if the device has had prolonged operation in an
extreme environment such as one where cracked oil smoke machines are in use. If the device is used in extreme
conditions, it is recommended to have it serviced every three years as a preventative measure.

9.3. Factory Default Settings

9.3.1. Module Defaults
Module Type:
Mod Input Mute:
Mod Output Mutes:
Gain:
Delay:
Polarity:
MaxRMS:
MaxPeak:
Amp Gain:
ISVPL:
Input & Output EQ:
68
PLM+ SERIES Operation Manual rev 1.0.0
4 x CL1-Way
On
Off
0 dB (unity)
0 ms
Positive (In phase)
20 dB
21 dB
35 dB
194 V
Flat