Monitor Controller Owners Manual
Table Of Contents
- 1 Welcome
- 2 Important Safety Information
- 3 Safety Marking Symbols
- 4 Service Information
- 5 m905 features
- 7 Unpacking and Installing
- 8 Connecting the m905
- 9 Normal Operation Mode
- 10 Setup Mode
- 11 General Setup
- 12 ABOUT CROSS-FEED
- 13 Communication Error Handling
- 14 Computer Audio Setup
- 15 Updating Firmware
- 16 Specifications
- 17 Block Diagram
- 18 PCB Jumper Locations
- 19 Wiring Diagrams
- 20 Cleaning and Maintenance
- 21 Warranty Information
- 22 Manual Revisions
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*In addition to the ADAT / AES DUALWIRE conguration in SETUP, hardware jumper J7 on the AT166 pcb
must be placed in the correct position for proper operation. The default position selects the ADAT input.
These jumpers are shown in the ‘m905 DIGITAL I/O PCB Jumper Locations’ diagram, page 40.
To set the ADAT/AES Dual Wire mode:
• Disconnect the m905 from its AC power by unplugging the AC power cable.
• Use a #2 Phillips screwdriver to remove the top cover from the m905. There are 8 screws to remove on the
top cover, 4 on the top and 2 on each side.
• Be careful to discharge any static electricity on the outside of the chassis before touching any of the jump-
ers inside the m905.
• Refer to ‘m905 DIGITAL I/O PCB Jumper Locations’ diagram, page 40.
SYSTEM SETUP
RCU FIRMWARE VER. This is a read-only parameter that indicates the current rmware revision of the m905
RCU. Attempts to edit this parameter will be ignored.
ACU FIRMWARE VER. This is a read-only parameter that indicates the current rmware revision of the m905
ACU. Attempts to edit this parameter will be ignored.
XMOS FIRMWARE VER. This is a read-only parameter that indicates the current rmware revision of the
m905 XMOS processor. Attempts to edit this parameter will be ignored.
RESTORE DEFAULTS This menu item is used to restore the system to factory defaults. Executing the follow-
ing sequence will erase all user dened setup data and return values to their default states.
Once restore defaults is the selected parameter, press the knob. The parameter “no” will turn red. Rotate
the knob clockwise to change the value to “yes”. Press the knob again and the restore defaults se-
quence will execute. If you do not wish to execute this, instead rotate the knob counter clockwise back
to “no” and press the knob to exit edit mode.
SPL METER SETUP
The m905 provides a real-time type IEC Type 2 SPL measurement display. This setup mode allows the
user to congure the dierent SPL meter parameters. SPL meter setup parameters are as follows:
SPL METER This parameter is used to turn the SPL meter on and o. The default is on. When the SPL mea-
surement is on, it is displayed in the normal and setup screens. An o status is indicated on both screens
as well.
FILTER TYPE The SPL measurement is calculated based on the desired lter type. Available options are
unweighted, A-weighted and C-weighted. The default is A-weighted. The selected lter is displayed on
both the normal and setup screens.
For more information about SPL ltering, see: http://en.wikipedia.org/wiki/A-weighting
PEAK MODE This controls the behavior of the SPL peak measurement. Available options are decay (3s),
decay (5s), decay (10s) and hold. The default is hold. When decay is selected, the peak will decay after the
selected time. When hold is selected, the peak is held until the user clears it by pressing and holding the
MON>CUE /spl clear button.