Technical data

www.asti-usa.com ASTi DACS: Operation & Maintenance Manual (Version 4, Rev. B.1)

Troubleshooting

The following sections provide troubleshooting guide lines in the event of a problem with the

DACS.

Self Test Features

Daily Readiness Test (DRED) for Audio I/O: Your Digital Audio System is supplied with three

automated Daily Readiness (DRED) test routines, Local, Host and RIU. The Local readiness test

checks operation of the system by generating preset sounds through the DACS outputs without

Host communication. The Host readiness test generates preset sounds through the DACS outputs

but requires information to be transmitted from your Host computer. The RIU readiness test is

similar to the Local readiness test but is used on systems with TDM and RIU components.

Each of the test routines are run directly from the DACS. The Model Builder models used in these

tests can, however, be used as examples for generation of your own DRED test capabilities either

within your real-time audio simulation models or as your own off line readiness test.

Incorporation of DRED test capabilities into your real-time models allows you the added advan-

tage of initiating DRED testing through Host control. In addition, you can modify the DRED fea-

tures in your simulation models to meet your particular needs.

The Daily Readiness Test support software comes already installed on your DACS. This support

software is included on the Digital Audio System Utilities Disk supplied with your DACS and can

be reinstalled during Cold Start procedures. The test software includes the following:

• Three batch ﬁles, dred_loc.bat, dred_riu.bat and dred_hos.bat, installed in the C:\BATCH

directory on your DACS hard drive. These batch ﬁles are used to run the local and host

DRED tests directly from the DACS. Dred_riu is the local daily readiness tests for systems

with RIUs, while dred_loc is the daily readiness test for systems with 8 channel waveform

synthesizers.

• Three Model Builder conﬁguration ﬁles, dredloc.cfg, dredriu.cfg and dredhos.cfg, installed

in the C:\MBUILDER\DEMO\MODELS directory. These conﬁguration ﬁles include the

Model Builder start up parameters for each test. See your Model Builder User’s Guide and

Model Builder Reference Guide for more information on Model Builder conﬁguration ﬁles.

• Model Builder audio simulation model ﬁles are denoted by the .mdl extension and installed

in the C:\MBUILDER\DEMO\MODELS directory. Three models are supplied for each

Waveform Synthesizer or TDM Controller card in your DACS. One model is used for Local

DRED test, another for the RIU local DRED test, and a third for the Host DRED test.

The tests described here are for systems with an 8 channel waveform synthesizer. The

DRED_RIU test is described in a text ﬁle which is displayed when you run the test.