Lectrosonics AM8 Instruction Manual

8 channel automatic mixer

Advertisement

AM8 and AM8TC
8 Channel Automatic Mixer
Fill in for your records:
Serial Number:
Purchase Date:
INSTRUCTION MANUAL
Rio Rancho, NM, USA
www.lectrosonics.com

Advertisement

Table of Contents
loading

Summary of Contents for Lectrosonics AM8

  • Page 1 INSTRUCTION MANUAL AM8 and AM8TC 8 Channel Automatic Mixer Fill in for your records: Serial Number: Rio Rancho, NM, USA Purchase Date: www.lectrosonics.com...
  • Page 2: Table Of Contents

    RS-232 compatible controller. More than one AM8 may the automatic action is inaudible and simple to set up. be coupled together when applications call for more The AM8 offers remote control of all channel levels and than 8 channels. the master level. In addition, a sophisticated compres-...
  • Page 3: General Technical Description

    An RS-232 port is available to allow many of the func- tions. The gain reduction function is gated, which means tions of the AM8 to be controlled either by a computer or that there are no noise ups associated with program a dedicated control system (such as the AMX or Crestron signal pauses.
  • Page 4: Installation

    Installation Installing the AM8 properly is simple, and only requires EXPANSION EXPANSION attention to a few issues. The AM8 should be used in (CH40) (CH40) RS232 RS232 20 VAC 20 VAC Master Master a grounded metal rack. If only one AM8 is being used,...
  • Page 5: Front Panel Description

    Normal operation of the Channel Level AM8. If multiple AM8s are used together, only the Main control is from about the 10 o’clock position to the 2 Level control of the last (i.e. Master) AM8 will be opera- o’clock position. tional.
  • Page 6: Rear Panel Description

    Direct). Note, how- ever, that the Remote Level control feature functions regardless of the setting of the Auto/Direct mode switch. AM8 Rear Panel LECTROSONICS, INC. DIRECT US PATENT NUMBER 5,414,776...
  • Page 7: Remote Level Control Connector Pinout

    RS-232 SERIAL PORT - Provides access to and con- nician for help. trol of some of the operational features of the AM8. The port is compatible with the serial port of a PC, or other controllers with RS-232 type serial ports. For hardware interconnection and software details, see Appendix 1, “Serial Port Hardware and Software”.
  • Page 8: Operating Instructions

    Level Control capability of the AM8 is addressed in the until the 3dB Gain Reduction LED flickers on. The next section. When the power is turned on to the AM8, system volume level may need to be readjusted at it will display its LecNet address on the Channel On this point using the Main Level control.
  • Page 9: Remote Level Connections

    8 Channel Automatic Mixer Remote Level Connections The figure below shows several options which may be used for remote level control of the AM8. Pots, switch- es, and external control voltages may all be used as the application dictates. WIRING DIAGRAMS, REMOTE LEVEL CONTROL PORT...
  • Page 10: Troubleshooting

    1) Mic level is too low relative to other mics - Turn up the mic level All front panel channel LEDs are on all the time, with or without signal applied. 1) If you are using just one AM8/AM8-TC, be sure the rear panel Master/Slave switch is in the Master mode.
  • Page 11: Service And Repair

    LECTROSONICS’ Service Department is equipped and staffed to quickly repair your equipment. In warranty repairs are made at no charge in accordance with the terms of the warranty. Out-of-warranty repairs are charged at a modest flat rate plus parts and shipping.
  • Page 12: Specifications

    This product meets the CE Compliance Standards - EN55022 and EN50082-1:1998. A copy of the Declaration of Conformity may be requested from your dealer or by contacting the factory directly: Lectrosonics, Inc. Marketing Department 581 Laser Rd. NE, Rio Rancho, NM 87124 USA tel: 505-892-4501 fax: 505-892-6243 e-mail: marketing@lectrosonics.com LECTROSONICS, INC.
  • Page 13: Serial Cable Wiring Diagrams

    8 Channel Automatic Mixer Serial Cable Wiring Diagrams The serial port on the AM8/4 is a minimal RS-232 implementation. The figure shows the wiring diagram to accommodate interconnection with either a 9 or a 25 pin serial port on a PC or other serial device.
  • Page 14: Serial Port Commands Available

    EEPROM will continue to have the new dress of the device to be controlled. If a device with the value even if the power to the AM8 is turned off. One of requested address exists on the system, it will respond these flags is particularly important when controlling the...
  • Page 15: General Device Commands

    Channel Levels and Attenuation Commands Get Device Name - Causes the AM8 to send its “name” Get Channel Level - Causes the AM8 to send to the host string back. The first data byte is the length of the channel levels, either singly or all eight. Range is name string, and the rest of the data bytes are from 0-255, where 0 corresponds to -65.33dBu,...
  • Page 16: Remote Attenuation Commands

    Remote Level Read Flag. If the input data is 0-31. 0-30 gives 0dB to 30dB at- flag is 0, the AM8 reads the 15 pin remote level tenuation. 31 is off. Note that the Remote Level port to determine the remote channel attenua- Read flag must be set to 1 for this command to...
  • Page 17: Compressor/Leveller Commands

    (see “Input Compressor/Leveller Threshold” be active. If the flag is 1, the AM8 will use the val- ue stored in EEPROM. The new value is stored command above).
  • Page 18: Auto/Direct Mode Commands

    Host sends data byte: 0 or 1, where 0 = read internal switches, 1 = use stored value. Get Auto/Direct Mode - Causes the AM8 to send to the host the a data byte which indicates the current mode of all channels, packed into one data byte as shown below.
  • Page 19 8 Channel Automatic Mixer Rio Rancho, NM...
  • Page 20 This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot correct the defect in your equipment, it will be replaced at no charge with a similar new item.

This manual is also suitable for:

Am8tc

Table of Contents