D-70 FAQ

Audioarts D-70 FAQ
Question	Answer

I have crosstalk and/or distortion issues involving only some inputs. Why?	The D-70 console employs a non-summing talkback bus, fed by the pre-fade audio of any mic input that is configured to feed the bus. Since the talkback bus is non-summing, feeding it from multiple mic inputs causes crosstalk and/or distortion on all mic channels so assigned. You must choose only one mic channel to feed the talkback bus.

How do I increase the number of mic channels?	The D-70 console rear panel cards determine if a fader is a mic input, an analog line input, or a digital line input. To add mic channels, replace a line input card (analog or digital) with a mic input card. The VDip application must then be run to configure the slot as a mic channel.

How do I set up talkback from the control room to the studio?	Any single D-70 mic input can be set up to feed the internal talkback bus by installing a jumper at position J2 on the MMADC input card, located in the rear of the console. The audio on this bus interrupts the studio output when the studio TB button on the console is pressed. A TB level control allows you to adjust the volume of the talkback signal. Please note, only one mic channel in the console may be assigned to the talkback bus.

How do I set up talkback from the studio to the control room?	Any D-70 mic input is put into CUE when an external user-supplied switch, connected to pins 2 and ground (pin 7, 8, or 12) of that mic channel’s logic connector, is pressed. The operator can then hear that mic’s audio over the console CUE system.

How do I talk with the caller off line?	Any single D-70 mic input can be set up to feed the internal talkback bus by installing a jumper at position J2 on the MMADC input card, located in the rear of the console. The audio on this bus interrupts the caller 1 feed when the caller CUE1 button on the console is pressed and it interrupts the caller 2 feed when the caller CUE2 button is pressed. Please note, only one mic channel in the console may be assigned to the talkback bus.

How can I get the Tally for my On Air Light to work with buses other than PGM?	The Air Tally relay does not fire unless the channel is on and assigned to PGM. If you want the tally to fire when the channel is on regardless of any bus assignments, use Tally 2 or Tally 3 instead of the Air Tally.

All the lights on the console are flashing. The power supply appears ok and reboot didn’t fix it. What should I look for next?	Check on the PR-70 motherboard that the Master Clock crystal (Y1) is properly seated in its socket.

I removed a front panel module, and when I put it back in all the lights are flashing on it. What would cause this?	Check to see if the ribbon cable from the module is plugged in backwards on the motherboard.

Can I have more than one SPD-70 (phone module) in the console?	No. The bus structure only supports one dual caller module. If you need to handle additional callers, please see our white paper Making The Connection (pdf).

When I run VDip, the first available slot is #9 (or #17), not #1. Why is that?	This is normal. The D-70/20 frame is 8 slots less than a full 32 input frame, so the first slot is 9. The D-70/12 frame is 16 slots less than a full 32 input frame, so the first slot is 17.

VDip is not connecting. I’ve followed the parameter settings in the manual. I’ve checked that the interface cable is correct. What else should I look for?	Check that the local/remote switch on the console is set to remote (the switch is lit).