Check inward downward expander (gate). The threshold setting may be too high.

It may be that in the case of the transitions that don’t mute, certain parameters of the presets are not far apart and in the case of the ones that do mute there are some fairly diverse settings between the two presets. The muting is by design with the intention of avoiding nasty pops or clicks that might otherwise result.

1. Check input connector wiring.
2. Check output connector wiring.
3. If the hum or buzz is present in inputs 3 or 4, try connecting the chassis of the source equipment to the chassis of the 460. 4. Check for a ground loop problem. Inspect related systems equipment grounding to see that all system components are on the same AC ground.

460 User’s Guide

460 AutoCAD file

1. Check input signal levels and level control settings.
2. Check to see if the source signal is noisy.
3. Check if there is too much noise downstream by using the output level controls of the 460 at Mute.

Lower the gain settings for inputs 1 & 2 using the DIP switches. (Applicable only to inputs 1 & 2).

Crestron has provided Symetrix and its user base this archive for the benefit of SymNet and Crestron developers.

Should you have any comments, questions or problems with the files contained in this archive, please contact Crestron Technical Support.

Symetrix, Inc. does not warrant or support this archive or the files contained within.

Third Party Product Disclaimer – From time to time we test the compatibility of our own products with those of third parties. While we are happy to share with our customers the results of our own studies as well as other (possibly unsubstantiated) information regarding these third party products, it is the policy of Symetrix, Inc. to neither endorse, recommend nor support products manufactured and/or supplied by third parties. The responsibility of choosing third party products which are compatible with Symetrix products rests solely with the qualified contractor, consultant or system designer.

In recognition of the relative risks and benefits to both the Integrator and SYMETRIX, INC, any recommendation or suggestion relating to the use of the Products made by SYMETRIX, INC or any other manufacturer either in technical literature or in response to a specific inquiry or otherwise, is given in good faith. HOWEVER, it is for the Integrator to satisfy himself that the Products are fit for the purpose of being utilized by a Consumer as the end-user of the Products. To the fullest extent permitted by law, SYMETRIX, INC is not liable for any and all claims, losses, costs, or unforeseen damages of any nature whatsoever. It is intended that this limitation apply to any and all liability or cause of action however alleged or arising, unless otherwise prohibited by law.

460 Crestron Modules

460 Control Protocol for v1.0-1.05

460 Control Protocol v1.06

460 Control Protocol v1.08 and higher

1. Check CTL Destination setting in Main menu.

2. Check CTL Offset and Mult in Serial Control Setup and Options menu.

460 Data Sheet

1. Check settings on output Compressor or Limiter.

2. Check OUTPUT LEDs for illuminated COMP LED.

3. Check ratio settings; they may be set too high.

4. Check settings for Compression Makeup Gain; it may be too low.

5. Check if Compress Threshold is set too low.

1. Check settings on output Compressor or Limiter.

2. Check OUTPUT LEDs for illuminated COMP LED.

3. Check ratio settings; they may be set too high.

4. Check settings for Compression Makeup Gain; it may be too low.

5. Check if Compress Threshold is set too low.

Check cables and connections to see if:

1. Outputs are driving inputs and inputs are fed from outputs.

2. Signal from the source(s) is getting to the 460.

3. The signal chain after the 460 is functioning.

4. Check if the LCD display is illuminated.

5. If signal is present, and the downstream system is operative, check the level settings at inputs and outputs to ensure that they are not muted or attenuated sufficiently to make the 460 appear to not be functioning.