User manual AKG A16X12

[. . . ] AS16x12 16 Channel Automatic Matrix Mixer OPERATING INSTRUCTIONS and trouble-shooting guide INTRODUCTION The AS16x12 is the most advanced automatic matrix mixer available today. Combining 16 automatic input channels, 12 output channels, and a full crosspoint matrix system into 2 rack spaces, the AS16x12 is a compact solution for a wide variety of sound system applications. 15 nonvolatile preset memory positions mean complete flexibility and reconfigurability. The 16 automatic inputs utilize the patented Proportional Gain plus Autoskew mixing algorithm* for seamless automatic mixing performance. [. . . ] Connect the two switch contacts to the programmable input pin and ground. The inputs will be muted when the contacts are closed. The screen shown to the right indicates that the function of programmable input 1 is analog input control of inputs 1, 2, 3, 5, and 7. Notice how multiple inputs may be controlled by a single programmable input. 17 Increase In 1dB / Decrease In 1dB Allows one or more input gains to be controlled by a contact closure on a programmable input pin. Increase and Decrease input gain control goes from a maximum of 0dB gain to a minimum of 30dB attenuation, plus "Off". In the case of Increase In 1dB, each contact closure will increment the input(s) gain by 1dB until 0dB is reached. Decrease In 1dB will decrement the input(s) gains by 1dB until either "Off" or Rear Panel Minimum Input Gain is reached. If the contact closure is pushed and held, it will continue to increment or decrement until it is released or the gain reaches its high or low limit. The screen shown to the right indicates that the function of programmable input 1 is Increase In 1dB control of inputs 1, 2, 3 and 7. Analog Out Control - Allows one or more output gains to be controlled by an analog voltage on a programmable input pin. Analog output gain control goes from a maximum of 0dB gain to a minimum of 30dB attenuation, plus "Off". The Analog Out mode is ideal for using a pot (or some other source of analog voltage) to control output gain. The valid voltage range in the analog output mode is 0VDC to 5VDC. 0VDC corresponds to "Off" (or Rear Panel Minimum Output Gain, if it is programmed for less attenuation than "Off"), and +5VDC corresponds to 0dB. In addition, a SPST toggle switch may be used as a mute switch. Connect the two switch contacts to the programmable input pin and ground. The outputs will be muted when the contacts are closed. The screen shown to the right indicates that the function of programmable input 1 is analog output control of all outputs simultaneously. 18 Increase Out 1dB / Decrease Out 1dB - Allows one or more output gains to be controlled by a contact closure on a programmable input pin. Increase and Decrease output gain control goes from a maximum of 0dB gain to a minimum of 30dB attenuation, plus "Off". In the case of Increase Out 1dB, each contact closure will increment the output(s) gains by 1dB until 0dB is reached. Decrease Out 1dB will decrement the output(s) gains by 1dB until either "Off" or Rear Panel Minimum Output Gain is reached. If the contact closure is pushed and held, it will continue to increment or decrement until it is released or the gain reaches its high or low limit. [. . . ] We will be happy to quote approximate charges by phone for out of warranty repairs. RETURNING UNITS FOR REPAIR Please contact your local AKG distributor for instructions on how to send your unit in for service. You will save yourself time and trouble if you will follow the steps below: A. Pack the equipment carefully and ship to us, shipping costs prepaid. If necessary, we can provide you with the proper packing materials. [. . . ]