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Related Manuals for Crystal Vision Indigo AADA416FM
Summary of Contents for Crystal Vision Indigo AADA416FM
- Page 1 AADA416FM Analogue Audio Distribution Amplifier Crystal Vision Ltd., Lion Technology Park, Station Road East, Whittlesford, Cambridge, CB22 4WL, England. Tel: +44(0) 1223 497049 Fax: +44(0) 1223 497059 sales@crystalvision.tv www.crystalvision.tv...
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Page 2: Table Of Contents
Crystal Vision AADA416FM User Manual Contents Introduction Card edge operation Overvoltage detection level Silence detection Gain Hardware installation 3.1 Rear module signal I/O RM17 rear module connections RM37 rear module connections 3.2 Using unbalanced audio 3.3 General purpose interface 3.4 Configuration... -
Page 3: Introduction
Crystal Vision Crystal Vision Introduction Introduction 1 Introduction The AADA416FM is a quad audio distribution amplifier with individually balanced floating outputs. It has card edge control and can be configured in a variety of input/output configurations. There are four separate audio distribution amplifiers each with an electronically balanced input and four floating outputs. - Page 4 Crystal Vision Crystal Vision Introduction Introduction Each channel has an audio silence detector with common adjustable settings. The silence detect delay is selectable from around 2 seconds to 120 seconds in 15 eight second steps. Its default value is 1-2 seconds.
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Page 5: Card Edge Operation
Card edge Crystal Vision Card edge operation 2 Card edge operation Once the start-up initialisation procedure is complete, the AADA416FM can be controlled or configured from the card edge controls. The front card-edge provides power rail monitoring, channel gain adjustment, silence threshold, silence time, overvoltage level and two analogue audio monitoring outputs. -
Page 6: Silence Detection
Card edge Crystal Vision Card edge operation Silence detection A channel is only considered to be silent if its audio level remains below a certain threshold level for longer than a given time (detection delay). Silence detection level Silence detection level labelled Sil is adjustable from the front of the board. It is factory set to an output level of –30dBu. -
Page 7: Hardware Installation
Crystal Vision Hardware installation 3 Hardware installation The AADA416FM quad distribution amplifier fits into all Crystal Vision rack frames. All modules can be plugged in and removed while the frame is powered without damage. 3.1 Rear module signal I/O The AADA416FM is used with the RM17 and RM37 single slot rear connectors in all Crystal Vision frames. - Page 8 Crystal Vision Hardware installation Audio in - 15 pin D-Type connector (cable has plug on it) Pin number Function Comments IP-1LO Screen for input 1 IP-L1+ IP- Stereo 1 Left input (Audio 1 ) IP-L2+ IP- Stereo 2 Left input (Audio 3 )
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Page 9: Rm37 Rear Module Connections
Crystal Vision Hardware installation Arrangement of audio outputs and GND pins on 44 way D-Type Connector RM37 rear module connections RM37 fits in all frames Description RM37 • 24 modules per 4U frame, 12 per 2U frame, 6 per 1U frame &... -
Page 10: Using Unbalanced Audio
Crystal Vision Hardware installation Audio out Signal Description Signal Description OP1A+ OP1B- Audio 1 Audio 1 OP1A- OP1B+ OP1C- OP1D- Audio 1 Audio 1 OP1C+ OP1D+ OP2A- OP2B- Audio 2 Audio 2 OP2A+ OP2B+ OP2C+ OP2D- Audio 2 Audio 2... -
Page 11: General Purpose Interface
Crystal Vision Hardware installation 3.3 General purpose interface GPI outputs ‘a’ to ‘d’ use switch-closure to indicate AADA416FM status. When closed- circuit, the GPI line is connected to Frame Ground. As supplied, each GPI output has a 330 Ohm resistor in series with its output. This allows for an external LED connected to a dc supply voltage of +5V. - Page 12 Crystal Vision Hardware installation 4U frame GPI Connections GPI lines ‘a’ to ‘f’ of each card connect to one of eight rear remote connectors as follows: Slot no. ‘a’ pin ‘b’ pin ‘c’ pin ‘d’ pin ‘e’ pin ‘f’ pin...
- Page 13 Crystal Vision Hardware installation 2U frame GPI Connections GPI lines ‘a’ to ‘f’ of each card connect to one of four rear remote connectors as follows: Slot no. ‘a’ pin ‘b’ pin ‘c’ pin ‘d’ pin ‘e’ pin ‘f’ pin...
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Page 14: Configuration
Crystal Vision Hardware installation DTB-AV desk top box GPI connections GPI lines ‘a’ to ‘f’ of each card connect to the rear remote connector as follows: Slot no. ‘a’ pin ‘b’ pin ‘c’ pin ‘d’ pin ‘e’ pin ‘f’ pin Note: Remote connector is 15-way normal density D-type socket. -
Page 15: Linking Audio Channels Together
Crystal Vision Hardware installation Linking audio channels together Links PL2, PL3 and PL4 on the AADA416FM board allow audio channels 1 to 4 to be configured in any of the following modes. • • channels – each channel is 1-in 4-out •... -
Page 16: Matching Different Operating Levels
Crystal Vision Hardware installation AADA416FM showing channel combining links Matching different operating levels The maximum operating level may be adjusted for either +18dBu or +24dBu using on- board links PL12-15 (input gain) and PL8-11 (output gain). AADA416FM showing variable and jumper link gain controls The following table shows the jumper links used for each channel and their default positions for unity gain with +24dBu in and +24dBu out. -
Page 17: Overvoltage Led Inhibit
Crystal Vision Hardware installation Default +24dBu input/output settings Input gain link position Output gain link position Audio 1 PL12: 1-2 (0dB gain) PL8: 2-3 (0dB gain) Audio 2 PL13: 1-2 (0dB gain) PL9: 2-3 (0dB gain) Audio 3 PL14: 1-2 (0dB gain) -
Page 18: Using The Monitoring Output
Crystal Vision Hardware installation Using the monitoring output Two 3.5mm jacks labelled MON 1 and MON 2 are provided to monitor the output of the distribution amplifier after any gain or channel combining settings. The signal is scaled down so that the headphone sockets produces +6dBu for +24dBu at the distribution amplifier output. -
Page 19: Trouble Shooting
Crystal Vision Trouble shooting 4 Trouble shooting The front edge of the card provides useful power rail monitoring, in addition to card edge controls and two headphone monitoring outputs. AADA416FM front edge view The bottom green LED indicates good +/- 18 Volt power rails when lit and the upper green LED indicates a good +5 Volt rail when lit. -
Page 20: Basic Fault Finding Guide
Crystal Vision Trouble shooting Basic fault finding guide The Power OK LEDs are not illuminated Check that the frame PSU is functioning – refer to the appropriate frame manual for detailed information Check that the card is seated correctly in the frame... -
Page 21: Specification
Crystal Vision Specification 5 Specification General Dimensions: 100mm x 266mm module with DIN 41612 connector Weight: 175g Power consumption: 8 W nominal, 12 W max Audio inputs Number and type: 4 mono, electronically balanced high impedance input (>20k Maximum input level:... - Page 22 Crystal Vision Specification Inter-channel cross talk: < -94dB 10kHz Monitoring audio Number and type: 2 Stereo (4 Mono) via two 3.5mm stereo jack sockets Output level: 0dBFS + +10dBu Silence detectors Silence level: -18 dBu to -42 dBu at output –...
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