Download User Manual - IRT Communications

I R T Electronics Pty Ltd A.B.N. 35 000 832 575
26 Hotham Parade, ARTARMON N.S.W. 2064 AUSTRALIA
National: Phone: (02) 9439 3744
Fax: (02) 9439 7439
International:
+61 2 9439 3744
+61 2 9439 7439
Email: [email protected]
Web: www.irtelectronics.com
IRT Eurocard
Types AAA-3130
Stereo Audio Distribution Amplifier
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IRT Eurocard
Types AAA-3130
Stereo Audio Distribution Amplifier
Instruction Book
Table of Contents
Section
Page
General Description
Technical Specifications
Internal Adjustments
Configuration
Installation
Front & rear panel connector diagrams
Sub-modules
AAO-3130 FACTS stereo oscillator
CAA-3130 Remote mode & phase control
CAA-3132 Dual remote control
Maintenance & storage
Warranty & service
Equipment return
Drawing index
3
4
5
5
6
8
9
9
12
15
17
17
17
18
This instruction book applies to units later than S/N 9801000.
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General Description
The IRT AAA-3130 is a high performance audio distribution amplifier. Its features allow standardisation on one
ADA type to perform many functions with consequent overall cost savings.
The AAA-3130 can be used for either mono or stereo signals. Inputs and outputs are balanced connector types,
which can be wired for unbalanced operation, if needed, for duplicating applications.
Front panel access is provided for the gain adjustment of Left and Right channels from zero output to the maximum
of the selected gain range.
LED’s on the front panel indicate the presence of audio on each channel and balanced output jacks are provided for
front panel monitoring.
Optional plug in sub-boards may be fitted to suit special applications:
AAO-3130: FACTS stereo oscillator module. Left continuous & right interrupted with remote ADA/oscillator
control switching.
CAA-3130: Remote select Stereo/L+R/L-mono/R-mono and L-phase reversal control module.
CAA-3132: Remote L&R gain, balance, stereo/mono and phase control module.
Applications:
•
•
•
•
Stereo signal duplication and distribution.
Level matching and balancing.
Stereo/mono switching.
Inline tone generation.
Standard features:
•
•
•
•
•
•
•
•
•
•
Selectable stereo or mono mode.
Balanced inputs and outputs
Front panel monitoring jacks.
LED audio activity indicators.
Front panel gain adjustments.
Optional remote control.
Optional in line stereo tone generator.
Selectable gain ranges: +6 dB, +12 dB & +18 dB.
Maximum output level +24 dBu.
Extended bandwidth option for ACS or timecode.
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Technical Specifications
IRT Eurocard module
Type AAA-3130
Inputs: Left/Mono and Right
Type
Impedance
Maximum input level
Input CMR
Tranformerless, balanced, bridging.
> 10 kΩ.
+24 dBu (6 dB gain mode)
> 55 dB 20 Hz to 20 kHz
Outputs:
Main: (Located on rear assembly.)
Type
Number
Impedance
Maximum output level
Maximum output loading
DC on output
Transformerless, balanced.
10 (10 mono or 5 L and 5 R).
< 40 Ω.
+24 dBu into 600 Ω.
10 x 600 Ω or up to 26 High Z.
< ±20 mV.
Monitoring: (Located on front panel.)
Type
Number
Impedance
Maximum output level
Minimum output load
DC on output
Transformerless, balanced.
2 (L and R) 3.5 mm.
< 70 Ω.
+24 dBu into 600 Ω.
1 kΩ.
< ±20 mV.
Indicators:
Audio activity
2 front panel LED's set for +4 dBu @ 1 KHz. (user adjustable).
Performance:
Gain
Frequency response
Harmonic distortion
Noise
Crosstalk;
Left/right
Amplifier/amplifier
Internally linked to a maximum gain of +6, +12 or +18 dB.
+ 0/- 0.3 dB for 20 Hz to 20 kHz.
< 0.005% 20 Hz to 20 KHz at +20 dBm.
-110 dB, Ref. +24 dBm 20 to 20 kHz.
-75 dB, 20 Hz to 20 kHz.
-80 dB, 20 Hz to 20 kHz.
Power Requirements:
28 Vac CT (14-0-14) or ± 16 Vdc.
Power consumption
<5 VA.
Connectors:
Phoenix plugable screw block.
3130 (standard)
Other:
Temperature range
Mechanical
Finish:
Front panel
Rear assembly
Dimensions
Supplied accessories:
0 - 50° C ambient.
Suitable for mounting in IRT 19" rack chassis with input, output and power
connections on the rear panel.
Grey, black lettering & red IRT logo.
Detachable silk-screened PCB with direct mount connectors to Eurocard and
external signals.
6 HP x 3 U x 220 mm IRT Eurocard.
ZAA-3130 rear connector assembly with Phoenix plugable compression screw
terminals.
Matching connectors for audio inputs & outputs supplied.
Due to our policy of continuing development, these specifications are subject to change without notice.
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Internal Adjustments
Factory settings:
The following adjustable resistors are factory set and should not be adjusted unless a component has been changed.
They are not 'operational' controls. Before adjusting any of these controls allow time for the AAA-3130 to reach
temperature stability.
RV 1 "Left' Common Mode Rejection.
Adjusted to reduce input common mode signals to a minimum at the output of the AAA-3130.
RV 2 "Right' Common Mode Rejection.
Adjusted to reduce input common mode signals to a minimum at the output of the AAA-3130.
User settings:
Audio activity indicators:
RV 5 "Left & Right" Level detector threshold.
RV 5 is located on the reverse side of the main PCB. To access this control it is necessary to remove the shield plate
from the DA. After adjustment, the shield plate must be replaced to preserve the inter-module crosstalk noise
characteristics.
Note that RV5 sets the threshold level for both channels.
Detector threshold point is measured at the output of the DA.
This setting may be adjusted to a value consistent with normal operating level.
Factory setting is +4 dBu @ 1 KHz.
Maximum gain:
Left channel
Right channel
LK 8 set as designated on PCB overlay for +6, 12 or 18 dB max.
LK 7 set as designated on PCB overlay for +6, 12 or 18 dB max.
See also Configuration and Installation sections following.
Configuration
The AAA-3130 may be configured for several modes of operation including remote control and conversion to a
multi output oscillator with the addition of sub-modules. This is achieved by various link settings as outlined below.
The AAA-3130 is normally delivered set for stereo operation, 6 dB maximum gain on both channels and no sub
modules fitted.
Configuration Summary:
1.
Sub-modules:
2.
Stereo/mono:
No sub-module
Any sub-module
CAA-3130
CAA-3132
AAO-3130
LK 1 & LK 2 soldered on board.
Cut LK 1 & LK 2 on board.
Set to stereo mode as below.
Set to stereo mode as below.
Set to stereo mode as below. LK 7 & LK 8 are inoperative.
Stereo
Mono L Input
LK 3 & LK 6 installed. LK 4 not installed.
LK 3, LK 4 & LK 5 installed. LK 6 not installed.
LK 8 sets maximum gain. Gain adjust is only by RV 3 L gain.
LK 7 and RV 4 are inoperative.
LK 3, LK 5, & LK 6 installed. LK 4 not installed
LK 7 sets maximum gain. Gain adjust is only by RV 4 R gain.
LK 8 and RV 3 are inoperative.
Mono R Input
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Installation
Operational Safety:
WARNING
Operation of electronic equipment involves the use of voltages and currents that may
be dangerous to human life. Note that under certain conditions dangerous potentials
may exist in some circuits when power controls are in the OFF position.
Maintenance personnel should observe all safety regulations.
Do not make any adjustments inside equipment with power ON unless proper
precautions are observed. All internal adjustments should only be made by suitably
qualified personnel. All operational adjustments are available externally without the
need for removing covers or use of extender cards.
Pre-installation:
Handling:
This equipment may contain or be connected to static sensitive devices and proper static free handling precautions
should be observed.
Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures
should be followed when inserting or removing cards from these bags.
Power:
AC mains supply:
Ensure that operating voltage of unit and local supply voltage match and that correct rating fuse
is installed for local supply.
DC supply:
Ensure that the correct polarity is observed and that DC supply voltage is maintained within the
operating range specified.
Earthing:
The earth path is dependent on the type of frame selected. In every case particular care should be taken to ensure that
the frame is connected to earth for safety reasons. See frame manual for details.
Signal earth: For safety reasons a connection is made between signal earth and chassis earth. No attempt should be
made to break this connection.
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Installation in frame or chassis:
See details in separate manual for selected frame type.
Audio Connections:
For mono operation it is usual to connect the input audio cable to the Left input pins. For stereo connect the Left
input cable to the Left input and the Right input audio cable to the Right input.
The input and output connectors are 3 way balanced Phoenix connectors.
Where an unbalanced connection is required, the signal may be connected between either the + input and GND or
the – input and GND. On the input only the unused input pin should be connected directly to GND. Do not ground
the unused output pin, as this will damage the amplifier.
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Front & rear panel connector diagrams
The following front panel and rear assembly drawings are not to scale and are intended to show relative positions of
connectors, indicators and controls only.
AAA -3 1 3 0
3130
L O/P’s
R O/P’s
+
+
Gnd
Gnd
+
+
Gnd
Gnd
+
+
Gnd
Gnd
+
+
Gnd
Gnd
+
+
L
GAIN
R
L
MON.
R
L
Gnd
Gnd
Remote
R
1234
DC
+
+
Gnd
Gnd
LEFT
& MONO
INPUT
RIGHT
INPUT
N140
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IRT Eurocard Sub-module
Type AAO-3130
General Description
The AAO-3130 Four frequency switched stereo oscillator sub-module converts the supporting main module audio
distribution amplifier into a multi output reference stereo oscillator for test or alignment purposes. Right channel can
be set-up for either pulsed (interrupted every second) or continuous operation. This configuration conforms to the
recommended practice of FACTS (Federation of Australian Commercial Television Stations) for channel
identification.
Provision is made to remotely switch the frequency to a fixed 40 Hz, 400 Hz, 1 kHz or 10 kHz tone.
Technical Specifications
IRT Eurocard Sub-module
Type AAO-3130
Control input:
Remote switch component
Connections:
Single pole 4 position or equivalent (Not supplied)
On rear assembly of main module
4 pin female polarised IDC # 1300-104
GND
Relay 1 control
Relay 2 control
Relay 3 control (Oscillator On)
Pin 1
2
3
4
Performance:
(See main module specifications for other specifications)
Distortion
Frequency
< 0.01% at + 8 dBm.
Remote selectable to:
40 Hz, 400 Hz, 1 kHz or 10 kHz.
Power requirements:
± 12 Vdc from main module
See main module specifications
Power consumption
Other:
Temperature range
Dimensions
Standard accessories
0 - 50° C ambient
65 mm x 48 mm
Matching connector for control input type: 1300-104
Optional accessories
Instruction manual.
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Circuit Description
The circuit comprises of a low distortion Wein bridge oscillator, an astable multivibrator and a voltage controlled
switch with a remote control facility to select the operating frequency.
The oscillator output is passively split with one output fed directly to the left output.
The other output is fed via an FET which is gated on and off by a square wave oscillator to provide an output which
is alternatively on and off. This if fed to the right output.
The gating frequency may be trimmed by adjusting potentiometer RV 1 which sets the frequency of the astable
multivibrator U 2.
The normal input circuitry of the distribution amplifier is bypassed when the oscillator is switched in by relay RL3.
Control of frequency is by way of grounding contacts, which activate relays, RL1 and RL2, on the sub-board to
select the correct time constants in the circuit. These are arranged so that four commonly used frequencies may be
obtained using only two control relays operated over a three-wire circuit.
The circuit does not contain a latch for the remote input and the external contact must therefore be maintained for as
long as the selected frequency is required.
In the absence of any remote input both relays will turn off and the oscillator will default to 400 Hz.
RL3 must be switched on for the oscillator output to be switched to the main board outputs. With RL3 switched off,
the main board functions as a normal audio distribution amplifier.
Configuration
Before installing the AAO-3130, on the main board, AAA-3130, cut the on board links LK1 and LK2. Ensure the
main board is set for stereo operation as outlined in AAA-3130 the main module section.
For pulsed tone on right channel, on AAO-3130 sub-board, set link settings to LK1 closed and LK2 open. For
continuous tone on right channel, on AAO-3130 sub-board, set link settings to LK1 open and LK2 closed. Left
channel always remains as a continuous tone.
Installation
Module
To install the sub-module onto the main module first ensure that the proper mode of operation has been selected on
both the main and sub-modules.
Then remove straps LK 1 and LK 2 on the main module.
Hold the sub-module so that the legends on the sub-board and the legends on the main module have the same
orientation.
Place the sub-module over the connector pins of the main module. The 16 pins fit into 16 holes in the sub-module.
Push the sub-board down until it rests on the orange insulation of the pins.
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Operation
Remote control of frequency
To switch in the oscillator, relay RL3 must be switched on. This is done by connecting pins 1 and 4 on the 4 pin
header on the rear connector of the main module’s rear connector unit.
The frequency of the oscillator may be set using pins 2 and 3 connected to pin 1 of the remote connector on the rear
assembly of the main module. If no connection is made the oscillator will default to 400 Hz operation.
1 2 3 4
As the remote switches and wiring carry the full relay current it is important that the losses in the external wiring be
kept to a minimum.
Refer to Drawing 804213 for modes of operation.
Frequency
40 Hz
400 Hz
1 kHz
10 kHz
3130-aaa.ib.rev14.doc
Connect to Pin 1 (GND)
2
Default N/C
2&3
3
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IRT Eurocard Sub-board
Type CAA-3130
General Description
The CAA-3130 can remotely switch between mono and stereo modes or reverse the phase of the left channel in
stereo mode. Links on the board allow a choice of either a -3 dB or -6 dB mono mix (Only one mode is possible at
any time).
1.
2.
3.
4.
Normal stereo operation.
Reverse phase of left channel
Switch left channel input to mono output.
Mix left and right channels to mono output with selectable 3 dB or 6 dB cut in signal level.
Technical Specifications
IRT Eurocard Sub-module
Type CAA-3130
Control input:
Remote gain component
Connections:
(Not supplied)
On rear assembly of main module
3 pin female polarised IDC # 1300-103-426
GND
Relay 1 control
Relay 2 control
Pin 1
2
3
Performance:
(See main module specifications for other specifications)
Operation modes
Frequency Response
Distortion
Noise
Attenuation mono mix mode
Power requirements:
Power consumption
Other:
Temperature range
Dimensions
Standard accessories
Optional accessories
3130-aaa.ib.rev14.doc
Remote selectable:
(Only one mode is possible at any time)
Stereo (normal)
Invert left channel phase
Mono output from left input
Mix of stereo input to mono output
+0 / -0.5 dB 20 Hz to 20 KHz.
< 0.1% at +20 dBm.
-100 dB wrt +24 dBm.
-3 dB or -6 dB selectable by links.
± 12 Vdc from main module
See main module specifications
0 - 50° C ambient
65 mm x 48 mm
Matching connector
1300-103-426
for
control
input
type:
Instruction manual.
Page 12 of 18
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Circuit Description
The CAA-3130 is comprised of a single operational amplifier in series with the left channel audio whose gain is
determined by four relays which determine the path and thereby the amplitude of the signals in the circuit.
With no relays activated the amplifier functions as a voltage follower and has no effect on the phase or gain of either
channel.
When RL 1 is activated the input to U 1 is switched from the non-inverting to the inverting input resulting in a phase
reversal of the left channel signal.
When RL 2 is activated the right channel output is switched from the right input to the left output and both left and
right channels receive the signal from the left channel input of the main module. In this mode the right channel input
of the main module is disconnected from the circuit and gain control link LK 7 on the main board will have no effect.
When both RL 1 & RL 2 are activated simultaneously the right output signal is derived from the left output as
described above.
However in this case the right and left input signals are also switched to the inverting input of U 1 and summed via
resistors R 1, R 3, R 5 & R 6 which determine the gain of the resultant mono mix.
Links LK 1 & LK 2 are provided to bypass resistors R 3 & R 6 respectively.
Both links should either be installed or removed. Operation with only one link installed
will result in the gain of the two channels not being matched under some circumstances.
With the links installed the gain is unity for each signal with an overall result of +6 dB for the resultant mix.
With LK 1 & LK 2 removed the input signal from each channel is attenuated and the overall gain for each signal is
reduced to 0.71 resulting in a +3 dB mix.
Note that if the links are removed for the +3 dB mix option, that operation of RL 1 on its own to provide phase
reversal of the left channel will also result in a 1.5 dB attenuation of the left channel when the phase is reversed.
Configuration
The main module must first be configured to accept the sub-module. This is achieved by various link settings as
outlined in the main module manual.
The main module is normally delivered set for stereo operation and no sub-modules fitted.
Before installing the CAA-3130 check that the main module is set to stereo mode as detailed in main module
instruction manual.
Installation
Module
To install the sub-module onto the main module first ensure that the proper mode of operation has been selected on
both the main and sub-modules.
Then remove straps LK 1 and LK 2 on the main module.
Hold the sub-module so that the legends on the sub-board and the legends on the main module have the same
orientation.
Place the sub-module over the connector pins of the main module. The 16 pins fit into 16 holes in the sub-module.
Push the sub-board down until it rests on the orange insulation of the pins.
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Remote control
CAA-3130 can be remotely switched to provide one of the following modes of operation (Only one mode is possible
at any time).
1. Normal stereo operation.
2. Reverse phase of left channel
3. Switch left channel input to mono output.
4. Mix left and right channels to mono output with selectable 3 dB or 6 dB cut in signal level.
To configure these options see Drawing 803013.
To control the operation mode a switch should be wired between the pins marked Remote "1", "2" and "3" on the
RB-733 rear assembly.
Pin connections are:
Pin 1 common ground
Pin 2 relay 1 control
Pin 3 relay 2 control
The CAA-3130 is supplied with two links LK 1 & LK 2 bridging resistors R3 and R6 respectively.
This configuration sets the gain to -6 dB in stereo to mono mix mode.
To change attenuation in this mode to -3 dB remove links LK 1 & LK 2.
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IRT Eurocard Sub-board
Type CAA-3132
General Description
This plug-in option for selected IRT audio distribution amplifiers can be configured to provide any two of the
following modes of operation:
•
•
•
•
STEREO FADE over 75 dB range
STEREO TRIM of 6 dB
CROSS FADE over 75 dB or 6 dB range
MIX L+R & FADE both by up to 75 dB.
Only two modes of operation are possible at the same time.
Technical Specifications
IRT Eurocard Sub-module
Type CAA-3132
Control input:
Remote gain component
10 KΩ potentiometer (Not supplied) One required
for each of the two functions.
On rear assembly of main module
4 pin female polarised IDC # 1300-104-426
CCW connection of the potentiometers (GND)
Rotor for first gain element
CW connection of the potentiometers (1 KΩ in
series with + 12 Vdc)
Rotor for second gain element.
Connections:
Pin 1
2
3
4
Performance:
(See main module specifications for other specifications)
Frequency Response
Harmonic Distortion
Noise
Attenuation
Power requirements:
Power consumption
+0 / -0.5 dB 20 Hz to 20 KHz.
< 0.1% 20 Hz to 20 KHz at +20 dBm.
-94 dB, Ref. +24 dBm 20 Hz to 20 KHz.
> 75 dB.( Measurement for stereo fade mode )
± 12 Vdc from main module
See main module specifications
Other:
Temperature range
Dimensions
Standard accessories
0 - 50° C ambient
65 mm x 48 mm
Matching connector
1300-104-426
Optional accessories
Instruction manual.
3130-aaa.ib.rev14.doc
Page 15 of 18
for
control
input
type:
06/07/2006
Circuit Description
The circuit uses a TDA1074A variable gain control IC to perform the configured function. Configuration is by
means of resistors that determine the function as shown on diagram 804141.
As received from the factory the first element is set to Stereo Trim and the second element to Stereo Balance.
The input control circuits are isolated from the signal path and use DC controls which are filtered by the
combinations of R 2, C 1 & R4, C7 to provide immunity to noise, either in the external wiring or in the operation of
the external potentiometers.
The operating range is determined by the type of cable used and the degree of noise in the environment.
For best results over long distances a low loss screened cable should be used and the route carefully chosen to avoid
proximity to high level noise sources.
For short distances flat IDC ribbon cable will suffice.
Configuration
The main module must first be configured to accept the sub-module. This is achieved by various link settings as
outlined in the main module manual.
The main module is normally delivered set for stereo operation and no sub-modules fitted. Before installing the
CAA-3132 set the main module to stereo mode as detailed in main module instruction manual.
The CAA-3132 can be configured to provide any two of the following modes of operation:1. Stereo Fade
Up to 75 dB attenuation on both channels simultaneously.
2. Trim
As above, but range limited to 6 dB.
3. Cross Fade
Fade down left, fade up right/ fade down right, fade up left. Up to 75 dB range.
4. Balance
As above but range limited to 6 dB.
5. Mix L+R & Fade
Add left to right and fade both by up to 75 dB.
To configure these options see Drawing 804141.
Installation
Module
To install the sub-module onto the main module, first ensure that the proper mode of operation has been selected on
both the main and sub-modules.
Then remove straps LK 1 and LK 2 on the main module.
Hold the sub-module so that the legends on the sub-board and the legends on the main module have the same
orientation.
Place the sub-module over the connector pins of the main module. The 16 pins fit into 16 holes in the sub-module.
Push the sub-board down until it rests on the orange insulation of the pins.
Remote control
To control the two gain elements two remote 100 KΩ variable resistor should be wired between the pins of J3 on the
main module rear assembly marked Remote “1”, “2” and “3”, for the first element and “1”, “4” and “3” for the
second element.
Connect
Pin 1 to the bottom of both potentiometers (CCW connection)
Pin 2 to the slider of the second element potentiometer (rotor connection) (Trim)
Pin 3 to the top (CW connection).
Pin 4 to the slider of the first element potentiometer (rotor connection) (Balance)
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Maintenance & storage
Maintenance:
No regular maintenance is required.
Care however should be taken to ensure that all connectors are kept clean and free from contamination of any kind.
This is especially important in fibre optic equipment where cleanliness of optical connections is critical to
performance.
Storage:
If the equipment is not to be used for an extended period, it is recommended the whole unit be placed in a sealed
plastic bag to prevent dust contamination. In areas of high humidity a suitably sized bag of silica gel should be
included to deter corrosion.
Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures
should be followed when inserting or removing cards from these bags.
Warranty & Service
Equipment is covered by a limited warranty period of three years from date of first delivery unless contrary
conditions apply under a particular contract of supply. For situations when “No Fault Found” for repairs, a
minimum charge of 1 hour’s labour, at IRT’s current labour charge rate, will apply, whether the equipment is within
the warranty period or not.
Equipment warranty is limited to faults attributable to defects in original design or manufacture. Warranty on
components shall be extended by IRT only to the extent obtainable from the component supplier.
Equipment return:
Before arranging service, ensure that the fault is in the unit to be serviced and not in associated equipment. If
possible, confirm this by substitution.
Before returning equipment contact should be made with IRT or your local agent to determine whether the
equipment can be serviced in the field or should be returned for repair.
The equipment should be properly packed for return observing antistatic procedures.
The following information should accompany the unit to be returned:
1.
2.
3.
4.
5.
6.
7.
A fault report should be included indicating the nature of the fault
The operating conditions under which the fault initially occurred.
Any additional information, which may be of assistance in fault location and remedy.
A contact name and telephone and fax numbers.
Details of payment method for items not covered by warranty.
Full return address.
For situations when “No Fault Found” for repairs, a minimum charge of 1 hour’s labour will apply,
whether the equipment is within the warranty period or not. Contact IRT for current hourly rate.
Please note that all freight charges are the responsibility of the customer.
The equipment should be returned to the agent who originally supplied the equipment or, where this is not
possible, to IRT direct as follows.
Equipment Service
IRT Electronics Pty Ltd
26 Hotham Parade
ARTARMON
N.S.W.
2064
AUSTRALIA
Phone:
Email:
3130-aaa.ib.rev14.doc
61 2 9439 3744
[email protected]
Page 17 of 18
Fax:
61 2 9439 7439
06/07/2006
Drawing index
Unless otherwise specified all references on diagrams to AA-604 or AA-704 refer equally to the AAA-3130.
Drawing #
Sheet #
Description
804137
804137
1
2
AAA-3130 stereo audio distribution amplifier main circuit schematic
AAA-3130 stereo audio distribution amplifier audio monitoring circuit schematic
804213
804388
804141
3130-aaa.ib.rev14.doc
AAO-3130 Switched frequency stereo oscillator sub-board
CAA-3130 Remote control sub-board
CAA-3132 Remote control sub-board
Page 18 of 18
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29b
SK1-3
31a
J3-4
SK2-1
29a
SK2-3
J4
R11
100k
R15
100k
R1
100k
R5
100k
4R7
FS4
4R7
FS3
4R7
FS2
4R7
FS1
C6
330p
R12
5k6
C7
330p
C1
330p
R2
5k6
C2
330p
-
-
U1A
+12V
R13
5k6
R16
5k6
-12V
U2A
1N4004
NE5532
NE5532
D5-D8
+
+
D1-D4
-12V
1N4004
3
2
3
2
+12V
R3
5k6
1
1
NOTE : WHEN USING ZAA-3130M SHORT THE FOLLOWING RESISTORS = R37,38,55,56
: FOR PCB ISS3 SHORT LINKS 9 TO 11
26a/b
25a/b
23a/b
24a/b
22a/b
21a/b
30a
SK2-2
+
RIGHT
27a
28b
J3-3
28a
J3-2
J3-1
30b
+
LEFT
31b
SK1-2
SK1-1
8
-
+
4
8
-
+
4
C16
1500u
C15
1500u
R14
5k6
RV2
500R
R4
5k6
RV1
500R
6
5
6
5
C18
1u
C17
1u
R20
1k
R10
1k
7912
U6
2
7812
U5
1
I
I
C21
0.1u
NE5532
U2B
+12V
R8
1k
R18
1k
O
7
7
O
R36
10R
NE5532
R19
2k2
U1B
R9
2k2
3
3
-12V
+12V
C5
100u
6dB
12dB
18dB
C3
0.1u
D9
BAT85
C8
0.1u
C10
100u
6dB
12dB
18dB
LK7
-12V
+12V
LK8
1
2
R6
5k6
G
2
G
1
C20
10u
C31
C30
-12V
4x 100n
-12Va
+12V
-12Vb
C33
+12Vb
C32
-12V
+12V
-12V
3
3
4
6
8
7
5
2
LK2
LK1
PL3
2
4
6
1
8
7
5
PL2
+12V
+12Va
C19
10u
GAIN
GAIN
L4
L3
L2
L1
-12V
-12V
LD1
(GR)
D10
16V
R58
1K
-12Vb
+12Vb
-12Va
+12Va
RV4
4k7
+12V
+12V
RV3
4k7
1
2
LK6
S
M
LK5
M
LK4
LK3
S
-12Va
C12
220u
+12Va
R59
100k
R28
220R
R29
2k2
R60
100k
R21
220R
U3A
C14
220u
NE5532
-12Vb
U4B
C13
22p
NE5532
+12Vb
-12Vb
NE5532
R30
10k
U3B
U4A
C11
22p
NE5532
-12Va
+12Vb
R33
4k7
5
6
3
2
R26
4k7
5
6
3
2
R23
10k
+12Va
8
+
4
0
+
0
8
+
4
0
+
0
D12
D16
D18
7
D17
1
D15
D14
7
D13
1
D11
-12Vb
R76
3k9
R73
3k9
+12Vb
-12Vb
R72
3k9
R69
3k9
+12Vb
-12Va
R68
3k9
R65
3k9
+12Va
-12Va
R64
3k9
R61
3k9
+12Va
D11-D18
1N4148
2
12
1
2
12
1
2
12
1
2
12
1
R22
2k2
R77
18R
R31
10k
SIZE
R54
Q3
2N2905A
CONTRACT No.
ENG. APP.
CHECKED
DRAWN
COPYRIGHT
DO NOT COPY NOR
DISCLOSE TO ANY
THIRD PARTY
WITHOUT WRITTEN
CONSENT
-12Vb
Q7
2N2905A
C28
100p
C.M.
LK9
3a/b
7a/b
11a/b
15a/b
19a/b
18a
14a
10a
6a
2a
17a
13a
9a
5a
1a
18b
14b
10b
6b
2b
17b
13b
9b
5b
1b
AAA-3130
804137
AMPLIFIER
SHEET
1 OF 2
SK4 -1
SK6 -1
SK8 -1
SK10-1
SK12-1
SK4 -2
SK6 -2
SK8 -2
SK10-2
SK12-2
SK3 -1
SK5 -1
SK7 -1
SK9 -1
SK11-1
SK3 -2
SK5 -2
SK7 -2
SK9 -2
SK11-2
AUDIO DISTRIBUTION
SHT 2
DRAWING No.
TITLE
R81
33
R56
SHT 2
LK10
SHT 2
LK12
C29
100p
SHT 2
LK11
IRT Electronics Pty. Ltd.
ARTARMON NSW AUSTRALIA 2064
SCALE
A3
R48
R75
R52
R44
4R7
4R7
R40
R74
Q8
2N2219A
+12Vb
R32
10k
R55
Q5
2N2905A
R80
33
R51
-12Vb
R47
4R7
R43
4R7
R71
R39
R70
Q6
2N2219A
+12Vb
R79
33
R50
4R7
-12Va
R46
R42
4R7
R67
R38
R66
Q4
2N2219A
+12Va
C23
22p
R53
Q1
2N2905A
R25
10k
R49
4R7
C22
22p
R45
R63
R78
33
R41
4R7
-12Va
R37
R24
10k
R37 - R56
18R
R62
Q2
2N2219A
+12Va
C27
22u
C26
22u
C25
22u
C24
22u
1 02/12/97
2 21/07/98
ECR1009
3 23/07/99
R79
R78
R80
R103
10K
R100
100
-12
+12
S1
100
RV5
2K
R102
12K
R101
S2
5
4
6
7
+12
U7B
LM339
3
-12
U7A
+
12
2
1
-12
+12
-12
+12
C100
100n
R104
1M
C101
100n
R105
1M
R107
10K
R106
1K
-12
+12
+12
9
8
10
11
U7D
U7C
0
+
C102
1u
0
R81
-12
14
13
C103
1u
R108
R109
3K3
3K3
1
1
LD
LD3
LD
LD2
2
2
+12
+12
1 02/12/97
CONTRACT No.
ENG. APP.
CHECKED
DRAWN
COPYRIGHT
DO NOT COPY NOR
DISCLOSE TO ANY
THIRD PARTY
WITHOUT WRITTEN
CONSENT
C.M.
AAA-3130
804137
AMPLIFIER
AUDIO DISTRIBUTION
DRAWING No.
TITLE
IRT Electronics Pty. Ltd.
ARTARMON NSW AUSTRALIA 2064
SCALE
A3
SIZE
SHEET
2 OF 2
400Hz
40Hz
10KHz
1KHz
STATIC
RL1 ON
RL2 ON
RL1&2 ON
FREQ
RL2
C3
2n2
CONTROL
3
5
C2
6n8
C1
390p
R3
390K
5
R1
390K
R4
47K
3
10
8
RL1
RL1
D3
BAS32L
R19
10K
C7
100n
R2
47K
C4
390p
6n8
C5
2n2
2
1
1
-V
12
RL3
Q2
J108
R5
330R
100n
CD9
U1
+V
RA53
TH1
3
2
100n
CD8
10
470K
R6
7
-V
4
5
6
1
8
12
TL081
RL2
D1
BAS32L
t
1
2
RL1
1
t
R7
75R
TH2
1K0
4K7
R8
+V
CD3
100n
+12
D2
BAS32L
5K
RV1
CD2
22u
12
RL2
1
CD1
22u
U2
1
2
4
6
-V
100n
CD4
C8
1u
6
7
R18
330K
RV2
1M
LK2
-V
TL081
6
1
7
100n
CD7
3
2
100n
4K7
+V
R10
1K8
CONTROL
PL1
RIGHT
3
CD6
LEFT
5
+12V
R9
6
7
8
4R7
R20
-12V
7
4
5
C6
1
2
8
-12
THD
DIS
2M7
R17
LK1
R16
4K7
R14
4K7
R12
10K
10K
R11
-V
TR
O/P
U3
R15
3K9
Q1
2N4392
TLC555
5
4R7
4
RST
CV
-V
PL2
8
V+
GND
1
R21
CD5
100n
2
3
C9
10n
R13
3K9
10
3
RL3
8
7
5
6
3
RIGHT
CONTRACT No.
ENG. APP.
CHECKED
DRAWN
COPYRIGHT
DO NOT COPY NOR
DISCLOSE TO ANY
THIRD PARTY
WITHOUT WRITTEN
CONSENT
= LK2 CLOSED, LK1 OPEN
AAO-3130
804213
STEREO OSCILLATOR
DRAWING No.
TITLE
IRT Electronics Pty. Ltd.
ARTARMON NSW AUSTRALIA 2064
SCALE
A3
SIZE
2) TONE CONTINUOUS ON THE RIGHT CHANNEL
= LK1 CLOSED, LK2 OPEN
PL1
5
LEFT
1) TONE PULSED ON RIGHT CHANNEL
1 10/6/1995
ECR964
2 19/01/99
ECR1055
3 08/12/99
ECR1074
4 14/01/00
SHEET
1 OF 1
PC804214
REMOTE
J3
RB-733
4
3
2
1
AAA-3130
PCB 804389
P1/24b
P1/28a
P1/27a
P1/28b
C10+
C5+
PL1/3
PL2/3
PL1/2
PL1/1
PL2/2
PL2/1
RIGHT CHANNEL
PL1/4
LEFT CHANNEL
PL1/5
PL2/4
PL2/5
PL1/6
PL1/7
PL2/7
PL2/6
PL1/8
PL2/8
AAA-3130
R1
12K
R3
12
1
10
10
3
RL2B
7
88
7
RL3B
10
12K
R8
12K
12K
R5
R6
9
6
5
R9
C9
C8
R7
RL3 ON
RL2+RL3 ON
RL1+RL2+RL3 ON
J3/1 - J3/4
J3/1 - J3/3 and J3/4
J3/1 - J3/2 + J3/3 + J3/4
WITH 'L' PHASE REVERSAL
STEREO TO MONO MIX
STEREO TO MONO MIX
RIGHT CHANNEL MONO
LEFT CHANNEL MONO
RL2 ON
J3/1 - J3/3
STEREO OPERATION
LEFT CHANNEL PHASE INVERT
AND REMOVE SOLDER LINKS LK1 AND LK2 ON THE AAA-3130 BOARD.
TL074
U1C
12K
22pF
22pF
12K
TL074
8
7
C6
100nF
U1B
+12V
-12V
ENABLE STEREO OPERATION BY CLOSING LINKS LK3 AND LK6,
10
D1
1N4148
BEFORE FITTING THE STEREO CONTROL MODULE
RL1B
RL1A
RL1 ON
7
8
6
5
C3
100nF
RL1
46ND012-P
12
1
+12V
STATIC
NOTE:
14
1
TL074
U1D
22pF
C5
-12V
TL074
U1A
1
2
J3/1 - J3/2
12
13
3
2
12K
+12V
22pF
R2
D2
1N4148
RL2
46ND012-P
12
1
NO CONNECTION
12K
R4
12K
1
2
C4
D3
1N4148
4
11
1
2
RL3
46ND012-P
C7
100nF
5
6
6
10R
R10
RL2A
C1
10uF
R11
10R
02-02-2000
Date:
K.N.
1-Feb-2001
Revision: 1
ENG. APP.
CHECKED
PL2/3
PL2/4
LEFT CHANNEL
PL2/5
PL2/6
PL2/7
PL2/8
Drawing No.
804388
Sheet
1 of 1
STEREO CONTROL MODULE
CAA-3130
RV4 Top
RV3 Top
+12V
-12V
IRT Electronics Pty. Ltd.
ARTARMON NSW AUSTRALIA 2064
SCALE
N.T.S.
A3
Title
PL3/1
PL2/1
SIZE
PL3/2
PL3/3
PL3/4
PL3/5
PL3/6
PL3/7
PL3/8
AAA-3130
PL2/2
RIGHT CHANNEL
3
DO NOT COPY NOR
DISCLOSE TO ANY
THIRD PARTY
WITHOUT WRITTEN
CONSENT
COPYRIGHT
35
DRAWN
RL3A
C2
10uF
1
10K
6K8
10K
10K
AUDIO OVER
MIX L+R + FADE
TRIM
BALANCE
15K
R12
10K
10K
SC
10K
10K
SC
22K
22K
OC
33K
OC
OC
RD
6K8
15K
R8
R13
6K8
RC
+12
OC
OC
6K8
OC
OC
OC
RE
C1
47u
C2
100n
R9
R2
27K
R1
1K
NOTE: RB & RG ARE ALWAYS 10K
10K
CROSS FADE
RA
10K
1
2
3
4
5
STEREO FADE
RIGHT IN
LEFT IN
7
RC2
6
8
PL1
RC3
RF
22K
10K
10K
10K
10K
10K
RH
10K
10K
10K
10K
10K
SC
R3
1K
10K
22K
10K
10K
10K
OC
RJ
16
15
3
4
8
9
R7
OC
OC
OC
10K
10K
OC
RK
R11
R10
18
U1
1
10K
U1
10K
10K
U1
10K
R6
11
+12
17
2
C3
100u
10
R5
1K
22u
C9
22u
C8
C7
47u
R4
27K
RJ
RF
RK
RE
RD
RA
10K
22K
O/C
O/C
22K
10K
+12
13
14
6
5
C4
100u
10K
U1
10K
RH
10K
U1
RG 10K
RC
RB
12
7
1 05/11/97
1
2
3
4
RIGHT OUT
LEFT OUT
PWR GND
6
5
+12V IN
7
PL2
CONTRACT No.
ENG. APP.
CHECKED
DRAWN
COPYRIGHT
DO NOT COPY NOR
DISCLOSE TO ANY
THIRD PARTY
WITHOUT WRITTEN
CONSENT
22u
C6
22u
C5
+12
8
CAA-3132
804141
SUB-BOARD
REMOTE CONTROL
DRAWING No.
TITLE
IRT Electronics Pty. Ltd.
ARTARMON NSW AUSTRALIA 2064
SCALE
A3
SIZE
SHEET
1 OF 1