F. DCM 1st Time Troubleshooting
1. No PC to DCM Communications
If you select
Communications | Connect
and the response is
DCM not responding
, the most
likely a problem with your RS232 connection. Check that the RS232 cable is seated properly, and
you have selected the correct COM port for your computer. Try and use another cable, or verify
the proper wiring using the pinout description in Appendix 1.
NOTE:
Do not use a "null-modem" cable. These look correct but are wired different than a stan-
dard serial cable. Also, cycle the power of both the DCM and the PC and try again. Experiment to
make sure you have the correct COM setting (COM1 or COM2 are the most common settings).
ANOTHER POSSIBILITY:
If you
Connect
as a
Normal User
, and you try a
Get Configuration
from DCM
request on a Secure unit, the software will display a "DCM Not Responding..." error
message. This is normal. To get the settings from a
Secure
unit, you must
Connect
as a
Super
User.
Your
Super User
password must match the password that you stored in the configuration
file which resides within the DCM hardware unit or the
Connect
function will not work.
2. No audio from front panel monitor speaker
If you do not hear any audio on the front panel speaker, make sure that the selector switches are
working properly and then set the DCM to monitor PROC - C (center). This means that the signal
that is coming in the
From Processor Output
connector on the rear panel of the DCM is routed
directly to the speaker amplifier and any signal should be able to be heard. Connect your cinema
processor and play a film sound source. Turn up the master volume on the DCM front panel.
If the sound is there but it is not loud enough, you will need to connect the PC Commander soft-
ware to the DCM unit and verify that the
Configuration | Monitor Gain Levels
settings are not
attenuated. These settings have an attenuation range of 0dB to -16 dB.
3. Some front panel LEDs don't light
The
DCM Commander
software has a section that defines how many surround or subwoofer
amplifiers you are using. The front panel LEDs (and audio monitoring) will only allow selection of
the channels set in the software.
To change this setting, do the following:
1) save any settings in your PC software to a file in
File | Save as...
2) connect to the DCM using the
Communications | Connect
command
3) get the current configuration file by selecting the
Communications | Get Configuration from
DCM
command
4) edit the output settings on the
Configuration | General Configuration | Installed Outputs
window.
5) select Communications | Write Configuration to DCM
6) save this configuration using
File | Save as...
, and verify proper operation on the front panel.
34
Summary of Contents for DCM series
Page 1: ...DCM Series Digital Cinema Monitor Crossover System U S E R M A N U A L...
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Page 18: ...DCM 2 and DCM 3 DataPort ABC and EF Detail 11...
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Page 56: ...1675 MacArthur Boulevard Costa Mesa CA 92626 1468...