AMUT-BD AUDIO MONITORING UNIT - TSL

AMUT-BD
AUDIO MONITORING
UNIT
HANDBOOK
Television Systems Limited.
Vanwall Road, Maidenhead, Berkshire, SL6 4UB
Telephone +44 (0)1628 676200, FAX +44 (0)1628 676299
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EC DECLARATION OF CONFORMITY
Application of Council Directives Nos:
EC Low Voltage Directive (73/23/EEC)(OJ L76 26.3.73)(LVD).
Amendment: (93/68/EEC) (OJ L220 30.8.93).
Conformity Standards Declared:
EN 60950
EMC Directive: 89/336/EEC, Amended 92/31/EEC.
Conformity Standards Declared:
EN 50081-1: 1992- EMC- Generic Emissions, Part 1.
EN 50082-1: 1997- EMC- Generic Immunity, Part 1.
EN61000-3-2: 1995- Current Harmonic Emissions.
EN61000-3-3: 1995- Voltage Fluctuations & Flicker.
Manufacturer’s Name:
Manufacturer’s Address:
Type of Equipment:
Model No:
Part Number:
Television Systems Ltd
Vanwall Road
Maidenhead
SL6 4UB
England
United Kingdom
Audio Video Monitoring Unit
AMUT-BD MKII
TSLP- AMUT-BD MKII
Date CE Mark Affixed: 15/11/99
I, the undersigned, declare that the equipment specified above conforms to the
quoted Directives and Standards.
Place: Maidenhead, England
Signature:
Date: Print: R CHAMBERS
Position: PRODUCT MANAGER
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SAFETY
Installation.
Unless otherwise stated TSL equipment may be installed at any angle or position
within an operating temperature range of 5? - 30? C .
All TSL equipment conforms to the EC Low Voltage Directive:
EC Low Voltage Directive (73/23/EEC)(OJ L76 26.3.73)(LVD).
Amendment: (93/68/EEC) (OJ L220 30.8.93).
In all cases, the frame of the equipment must be earthed on installation.
The earth pin on the IEC mains inlet connector is connected to the metal frame of the
equipment, to 0 volts on the internal DC PSU and to signal ground, unless otherwise
stated. All metal panels are bonded together.
Due consideration for cooling requirements must be given when mounting the
equipment. Ideally 1RU of rack space should be left above and below the unit.
Check that the fuse rating is correct for the local power(mains) supply. Replacement
fuses must be of the same rating and type for continued protection against fire risk.
Do not switch on until all connections are made.
WARRANTY, MAINTENANCE AND REPAIR
All TSL equipment is guaranteed for one year from the date of delivery to the
customer’s premises. If the equipment is to be stored for a significant period, please
contact TSL concerning a possible extended warranty period.
Failure during warranty
If any TSL product should fail or become faulty within the warranty period, first please
check the PSU fuses.
All maintenance work must be carried out by trained and competent personnel.
Technical support information
E-Mail address: support@televisionsystems.ltd.uk
Telephone Support Number for the UK and Europe: +44 (0) 1628 670000
Telephone Support Number for the USA only: 1 877 591 2108
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TSL Returns Procedure
Please telephone +44 (0)1628 676200 (Fax: +44 (0)1682 676299) and ask for
Sales who will provide a Returns Number. This will enable us to track the unit
effectively and will provide some information prior to the unit arriving.
For each item, this unique Returns Number must be included with the Fault Report
sent with the unit.
A contact name and telephone number are also required with the Fault Report sent
with the unit.
Fault report details required.
? Company:
? Name:
? Address:
? Contact Name:
? Telephone No:
? Returns Number:
? Symptoms of the fault (to include switch setting positions, input signals etc):
Packing
Please ensure that the unit is well packed as all mechanical damage is chargeable.
TSL recommends that you insure your equipment for transit damage.
The original packaging, when available, should always be used when returning
equipment..
If returned equipment is received in a damaged condition, the damage
should be reported both to TSL and the carrier immediately.
YEAR 2000 CONFORMITY REQUIREMENTS
This product conforms to the following rules:
Rule 1
Rule 2
Rule 3
Rule 4
No value for the current date will cause any interruption in operation.
Date based functionality will behave consistently for dates prior to, during
and after the Year 2000.
In all interfaces and data storage, the century in any date is specified either
explicitly or by unambiguous algorithms or by inferencing rules.
The Year 2000 is recognised as a leap year.
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Contents
1.0 Introduction
2.0 Front Panel Controls
2.1 Input and Meter Selection Buttons
2.2 Bargraph set up
2.3 Output Switching
3.0 AMP-2 Facilities
4.0 Pin-out Details
4.1 Analogue XLR Connectors
4.2 AES/EBU XLR Connectors
4.3 Audio Input/Output Connector – D37 Socket Pinout
4.4 Control Connector - D9 Socket
4.5 External Connector - D15 Plug
5.0 LS Output
6.0 The demultiplexing card – ADX1-1C
6.1 Power
6.2 INPUTS
6.2.1 SDV in
6.2.2 AES in
6.3 Card Edge Controls
6.4 Outputs
6.4.1 Composite Video output
6.4.2 AES outputs
6.4.3 Analogue Audio outputs
6.5. Description of facilities
6.5.1 De-embedding Algorithms
6.5.2 Front panel piano switch
6.6 Pinout details
6.7 Notes
7.0 AMU Alignment Procedure
7.1 Initial Set-Up
7.2 Audio Alignment AMP-2
7.3 Bargraph Calibration
8.0 General Notes
9.0 Specification
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1.0 Introduction
AMUT-BD MKII AUDIO MONITORING UNIT
The AMUT-BD MKII is a half rack 3RU x 400mm deep Audio Monitoring Unit with a
TSL Bargraph.
The following features are standard:
? Six switch selectable stereo analogue inputs.
? Two AES/EBU inputs.
? One SDV input.
? Audio-present indication.
? Phase reverse switch.
? Out-of-phase error indication.
? M and S PPM Switching.
? Decoded PAL/NTSC composite or re-clocked SDV output.
? Optional additive output switch selection.
? Two x 30 Watt RMS into 4 ? loudspeaker amplifiers.
? Headphone outputs with LS muting.
? Fixed and variable stereo line outputs.
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2.0 Front Panel Controls
2.1 Input and Meter Selection Buttons
1 – 4 Analogue I/Ps. A1 (Left Channel) is fed to the top
bargraph and A2 (Right Channel) is fed to the bottom
bargraph.
5 & 6 To select of channel 5 press phase rev. button with input
3, this lights the input 2&3 LEDs together.To select
channel 6 press phase rev. button with input 4, this lights
the input 2 & 4 LEDs together.
AES1/2
SDV
M/S
Selects one of two AES signals to the bargraph.
Selects A1/A2 or A3/A4 from the de-embedded SDV to
the bargraph.
Displays the MIX (mono) signal on the upper bargraph
and the SEPARATION (difference) on the lower bargraph
of the selected Input.
Ø Rev Momentary phase reverse between A1 and A2.
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2.2 Bargraph set-up Menu
TSL Bargraph
These are accessed via the select & change buttons located between the two
alphanumeric displays to the left of the unit (see diagram above). The top display
shows the function & the bottom gives the state.
1) Pressing select once gives:
P E A K
H D 0
The zero toggles between 0 , 1 and 2 when the change button is pressed. 0 is
off, and 1 is on and the highest level point is displayed. HD 2 operates only in
the PPM mode and displays the level numerically with the reference marker.
With HD 0 selected the alphanumeric display is off.
2) Pressing select a second time gives:
D I S P
B A R
All the LEDs are lit up to the highest level displayed.
Pressing the change button gives:
D I S P
D O T
Only the highest level LED is lit.
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3) Pressing select a third time gives:
R S P N
1ms
Pressing the change button gives:
0.1ms
This changes the response for the relevant scales. (10mA,VU,
10mB)
4) Pressing select a fourth time gives:
I D 0
O N
This enables the unit to display the reference markers which are nominally
set to 0dB. These are set as follows for the appropriate scales fitted: PPM 4
for UK, TEST for EBU, - 4 for VU, - 6 for DIN, 0 or Test for Nordic, -18dB or -
20 dB for Digital.
When the change button is depressed the markers are not displayed and an
OFF indication is displayed in the lower display.
5) Pressing select for a fifth time gives:
B R G T
Depressing the change button changes the brightness or intensity of the
display. Successive presses decrease brightness.
6) Pressing select for a sixth time gives:
I / P :
A n l g
Depressing the change button changes the input from Analogue to digital
(AES)
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7) Pressing select for a seventh time gives:
S C L E
E B U
Depressing the change button defines which scale is in use. (EBU, ABC,
DIN, PPM, Nordic, ABC or VU.)
8) Pressing select for a eighth time gives:
0 R E F
- 1 8
Depressing the change button selects the digital reference. (-18, -20 or –24)
9) Pressing select for a ninth time gives
L O U D
O N
Depressing the change button turns the loudness indication on or off.
2.2 Output Switching
A1/A2
A3/A4
DIM
These buttons select either:
- the Analogue Left or Right signals of the metered Input,
- the AES/EBU Input 1 Left or Right signals or
- the selected SDV group A1 & A2 decoded outputs to
the Left or Right Output Channels.
The buttons toggle. Additive mixing is possible if two or
more buttons are selected together.
These buttons select either:
- Analogue Left or Right I/P 8 signals,
- the AES/EBU Left or Right signals of Input 2 or,
- the selected SDV group A3 & A4 decoded outputs to
the Left or Right Output Channels.
The buttons toggle. Additive mixing is possible if two or
more buttons are selected together.
Approximately 16dB of attenuation is switched into the
audio path
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CUT/MUTE
VOLUME
The front panel button CUT(s) the signal to all O/Ps.
Remote Mute of either or both of the LS O/Ps and
Variable Line O/Ps are possible via a rear connector. A
ground is required on the appropriate pin to activate the
MUTE condition.
The Headphones O/P and the Variable Line O/P may be
varied.
3.0 AMP-2 Facilities
This card provides all of the analogue processing.
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4.0 Pin-out Details
4.1 Analogue XLR Connectors
XLRS PIN FUNCTION
ANALOG 1 1 GND
ANALOG 1 2 1 IN+
ANALOG 1 3 1 IN-
ANALOG 2 1 GND
ANALOG 2 2 2 IN+
ANALOG 2 3 2 IN-
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4.2 AES/EBU XLR Connectors
XLRS PIN AES FUNCTION
AES 1 1 AES GND
AES 1 2 AES 1 IN+
AES 1 3 AES 1 IN-
AES 2 1 AES GND
AES 2 2 AES 2 IN+
AES 2 3 AES 2 IN-
4.3 Audio Input/Output Connector – D37 Socket Pinouts
D 37 SOCKET AUDIO FUNCTION D 37 SOCKET AUDIO FUNCTION
ON AMU INPUTS
ON AMU OUTPUTS
PIN NO
PIN NO
1 I/P1 A1 + 13
20 I/P1 A1 - 32
2 I/P1 A2 + 14
21 I/P1 A2 - 33
3 I/P2 A1 + 15
22 I/P2 A1 - 34
4 I/P2 A2 + 16
23 I/P2 A2 - 35
5 I/P3 A1 + 17 FIX. O/P A1 +
24 I/P3 A1 - 36 FIX. O/P A1 -
6 I/P3 A2 + 18 FIX. O/P A2 +
25 I/P3 A2 - 37 FIX. O/P A2 -
7 I/P4 A1 + 19 SCREEN
26 I/P4 A1 -
8 I/P4 A2 +
27 I/P4 A2 -
9 I/P5 A1 +
28 I/P5 A1 -
10 I/P5 A2 +
29 I/P5 A2 -
11 I/P6 A1 +
30 I/P6 A1 -
12 I/P6 A2 +
31 I/P6 A2 -
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4.4 Control Connector - D9 Socket
This is wired for RS422.
D9 CONTROL
1 0V
6 0V
2 TX-
7 TX+
3 RX+
8 RX-
4 0V
9 0V
5 N/C
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4.5 External Connector – D15 Plug
D15 EXTERNAL
PIN FUNCTION
1 Mute 1
2 Mute 2
3 GPI-1
4 GPI-2
5 N/C
6 N/C
7 N/C
8 N/C
9 N/C
10 N/C
11 N/C
12 N/C
13 N/C
14 +5V
15 0V
5.0 LS Output - LSA-4/2 card.
The loudspeaker amplifier uses a bridged circuit producing high output power.
Therefore, neither output terminal may be connected to ground.
6.0 The demultiplexing card – ADX-1C
This specification describes the Celtic Audio module ADX-1C Issue 1 loaded with
software A02.
This module has been designed to monitor AES3 digital audio and AES digital
audio embedded in a SMPTE 259M-C video data stream, together with the video
content which is output as either composite or re clocked SDV depending on the
board variant.
6.1 Power
+5V ± 5% @ < 0.5A
+12V ± 5% @ < 150mA
-12V ± 5% @ < 100mA
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6.2 INPUTS
6.2.1 SDV in
Connector Type: DIN 41612 pins
Receiver type:
AC coupled, auto equalising with clock regeneration
Impedance: 75?
Performance: Up to 300m of high quality cable (eg Belden 1694)
Standards:
SMPTE 259M-C with embedded 48kHz audio per
SMPTE 272MA
NB – the performance of this input stage is critically dependent on the cable
termination on the rear connector. Thus it is not possible to guarantee return loss
or cable length performance in anything other than an agreed test jig.
6.2.2 AES in
Connector type:
Impedance:
Input Sensitivity:
Standards:
DIN 41612 pins
75? unbalanced or 110? balanced. Impedance is switch
selected with on-board transformer balancing. To obtain an
unbalanced connection one line of the input needs to be
grounded at an electrically convenient point.
< 200mV pk-pk per AES3
AES3 (1992) at 48kHz, 44.1kHz or 32kHz
6.3 Card Edge Controls
Independent channel gains are provided for each of the four analogue outputs by
means of a multi-turn potentiometer providing ± 6dB adjustment. The nominal line-up
level for the board is designed to be 0dBm out for –20dB FS in.
6.4 Outputs
6.4.1 Composite Video output
Connector Type: DIN41612 pins
Format:
PAL or NTSC according to standard on SDI input.
Impedance: 75?
Amplitude: 1V pk-pk ± 5%
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6.4.2 AES outputs
Connector type:
Impedance:
DIN41612 pins
75? unbalanced or 110? balanced. Impedance is switch
selected with on-board transformer balancing. To obtain an
unbalanced connection one line of the output needs to be
grounded at an electrically convenient point.
Amplitude: 1V (75 or 2V (110? )
6.4.3 Analogue Audio outputs
Connector Type:
Format:
D/A Conversion:
THD+N:
DIN 41612 pins
Electronically balanced.
24 bit resolution.
>90dB referred to 0dBFS
There are a total of four audio signal outputs, which represent the two channels of two
AES pairs.
6.5. Description of facilities
6.5.1 De-embedding Algorithms
The board provides for the extraction of a four channel audio group as defined by
SMPTE 272M. The clock recovery system mandates that the incoming audio must
be synchronous 48kHz data for proper reproduction, although addition and deletion
of samples is used to overcome minor asynchronism. No guarantee can be given for
audio quality under these conditions.
In the event that one channel pair is absent from the incoming group, the appropriate
pair will be muted.
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6.5.2 Card edge piano switch
Down is ON.
Levers S1, S2:
These select the default SDV embedded audio group at power-up.
S1 S2 GROUP SELECTED
OFF OFF 1
ON OFF 2
OFF ON 3
ON ON 4
Lever S3: AES / Embedded
If set to ON, AES input will be selected. Overrides SDV group select.
Lever 4: Not defined.
Lever 5: PAL-M selection
If set ON, this will cause the encoded output to generate PAL-M format when 525 line
SDI exists on the video input.
Lever 6: AES Termination
If set ON, this will select a 75? interface on all the AES input and outputs. Default is
110? .
Lever 7: Reserved for I 2 C address select bit 0
Lever 8: Reserved for I 2 C address select bit 1
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6.6 Pinout details
The following is the pin description for ADX-1
------ indicates not used
Pin ADX-1 Pin ADX-1
1a SDI Gnd 1b SDI Gnd
2a SDI in 2b SDI Gnd
3a SDI Gnd 3b SDI Gnd
4a Composite out 4b DGnd
5a DGnd 5b DGnd
6a AES 1+ in 6b AES 1- in
7a DGnd 7b DGnd
8a AES 2+ in 8b AES 2- in
9a DGnd 9b DGnd
10a AES 1+ out 10b AES 1- out
11a AES 2+ out 11b AES 2- out
12a DGnd 12b DGnd
13a Control In 1 13b Control in 2
14a Control In 3 14b Control In 4
15a Control In 5 15b Control In 6
16a Control Out 1 16b Control Out 2
17a Control Out 3 17b Control Out 4
18a Control Out 5 18b Control Out 6
19a Control Out 7 19b Control Out 8
20a Control Out 9 20b Control Out 10
21a Control Out 11 21b Control Out 12
22a Control Out 13 22b Control Out 14
23a AGnd 23b AGnd
24a Analogue L1+ 24b Analogue L1-
25a Analogue R1+ 25b Analogue R1-
26a Analogue L2+ 26b Analogue L2-
27a Analogue R2+ 27b Analogue R2-
28a ------ 28b ------
29a +5V 29b +5V
30a -12V 30b -12V
31a +12V 31b +12V
32a 0V 32b 0V
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6.7 Notes
Output analogue levels are adjustable over the following range:
0 dBm = 0.775V into 600? i.e. 1mW power dissipation.
0 dBu = 0.775V rms = PPM 4.
Nominally, -18 dB ref 0FS = 0 dBu output.
European line up :
American line:
-18 dBu
-20 dBu
Adjustment of ± 6 dB about the –20 dBfs line up level is possible.
This procedure assumes that the user is familiar with precision audio equipment
alignment. All model variants are covered here so the user will understand the
function of the various controls.
It is recommended that an exchange card is obtained from TSL in the event of a fault.
Due to the complexity of these circuit cards TSL use a custom jig for accurate
alignment
7.0 AMU Alignment Procedure
This procedure assumes that the user is familiar with precision audio equipment
alignment. All model variants are covered here so the user will understand the
function of the various controls.
It is recommended that an exchange card is obtained from TSL in the event of a fault.
Due to the complexity of these circuit cards TSL use a custom jig for accurate
alignment
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7.1 Initial Set-Up
Connect 1khz Tone @ 0dB to Analogue I/P 1 L & R.
Set front panel switches to Analogue I/P 1 , check for audio presence indication on
front panel LEDs and deflection on both meters .
7.2 Audio Alignment AMP-2
The board is set for unity gain.
Place the AMP-2 PCB on an extender card.
PR1 is set for the LH A1 channel 0dB O/P probe pins C10/C11- balanced.
PR2 is set for the RH A2 channel 0dB O/P probe pins C12/C13 – balanced.
PR5 is set for 0db for the fixed A3 channel probe pins C14/C15 – balanced.
PR6 is set for 0dB for the fixed A4 channel probe pins C16/C17 – balanced.
PR3 is set for 0dB for the S signal probe pin C1.
PR4 is set for 0dB for the M signal probe pin C1.
PR7 is the LH PPM drive output and is set for 0dB probe pin C24.
PR8 is the RH PPM drive signal and is set for 0dB probe pin C25.
7.3 Bargraph Calibration Procedure
Factory Setting.
8.0 General Notes
1. Set the ADX-1 card for the desired reference level with AES/EBU
and/or SDV I/P signals.
2. Please note that some American equipment has the function of the
XLR pins 2 & 3 reversed.
TSL product is wired to the European standard
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9.0 AMUT-BD MKII Technical Specifications
Power Supply
Supply Voltage 90 -250V AC @ 50Hz/60Hz +/- 10%
Power Consumption
150 VA Max.
Physical Dimensions
Height
Width
Depth
Weight
Inputs 1 & 2
Connector Type
Signal
Frequency Response
Impedance
133mm (3RU)
Half width
404mm
5250gm
XLR Female 3 pin. Pin 1 Gnd, Pin 2 hot, Pin 3 cold.
Balanced line level audio.
30Hz to 25kHz
>20k?
Inputs 1 - 6
Connector Type D37.
XLR Inputs 1, 2 & 3. in parallel
Signal
Balanced line level audio.
Frequency Response 30Hz to 25kHz ±1dB
Impedance
>20k?
Inputs AES 1,AES2
ConnectorType
Standard
Impedance
Input, SDV
Connector Type
Standard
Impedance
XLR Female 3 pin. Pin 1 Gnd,Pin 2 hot, Pin 3 cold.
AES3 (1994) at 48kHz, 44.1kHz or 32kHz
75 ohm unbalanced or 110 ohm – balanced.
BNC.
SMPTE 259M 4:2:2 component 525/60 or 625/50 with
Embedded 48kHz audio.
75ohm
Line Output.
Connector
XLR 3 pin Male
Impedance 50?
Output Levels
Through level control with 0dB gain.
Fixed Line O/P
Available on D37 connector
Headphone Output.
Connector
Stereo Jack socket type A
Impedance 50?
Output Levels
Through level control with 0dB gain.
Loudspeaker Outputs.
Connectors
4mm Binding Posts
Output rating Max 30W RMS /Ch into 4? ,
Loudness algorithm Based on ISO 226
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