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9. INTERNAL SETTINGS / EXTENSIONS
CAUTION: The following instructions for installing and setting extensions are meat for the
qualified service technician only. In case you are not qualified for carrying out the described tasks,
please contact your dealer for further assistance.
Do not perform any maintenance that is not explained in this owner’s manual. Otherwise you will
risk injury through shock hazard. Leave all servicing and maintenance to the experienced and
qualified service technician.
To be able to make changes to internal settings or retrofit extension you have to open the DRM 4000. To
do so, please proceed as follows:
9.1 Internal Configuration Possibilities
Several internal configurations of the DRM 4000 have to be carried out inside of the enclosure - either by
jumper setting or via Cut&Solder-bridges on the main-PCB. The following table provides an overview of
the internal configuration possibilities and corresponding factory settings.
Funktion Settings Factory Settings
Low Cut Filter (MIC/LINE 1 - 4) ON / OFF ON
DIRECT OUTPUTS (Kanäle 1 - 8) PRE / POST POST
AUX Empfindlichkeit (AUX 1 - 4) -6 / +4 dBu +4 dBu
1. Switch off the power of the DRM 4000 and disconnect the mains cord.
2. Loosen the screws of the cover plate (2 frontal screws on the top plate, 2 rear screws on the top
plate) and remove the cover by lifting the rear and pulling the entire plate off in the rear direction.
3. When changing settings and/or installing extensions, painstakingly follow the provided instructions.
4. Reattach the cover plate by fitting its front while slightly lifting the rear. Now, slide the cover plate to
the front, so that it slides approximately 7 mm under the front panel. While lowering the cover plate’s
rear, make sure that the frontal lug fixes the small, upright indicators printed board assembly in place
while the cover plate’s rear notch fixes the small, upright printed board assembly in the area of the
MIC/LINE-inputs in place. Afterwards, tighten the four cover plate locking screws again.
INTERNAL SETTINGS
9-1