ASTRO AM-3825 User manual

ASTRODESIGN, Inc.
社
12G-SDI Audio Monitor / Loudness Audio Monitor
AM-3825/AM-3826
Instruction manual
Ver. 4.10

Safety Precautions (Always Observe)
2
Safety Precautions (Always Observe)
Always observe the following precautions. Failure to do so can result in fires, electric shock, serious injury or death, and damage
to property.
Warning Indications and Their Meanings
This manual uses the following warning indications and symbols. Before reading this manual, make sure that you understand the
meaning of these indications.
About Handling the Unit
Forbidden
Do not throw or subject to strong
shocks
Doing so can result in cracks, overheating, and
fire.
Do not use where there is a risk of fire
or explosions.
Doing so can result in fires
Do not allow water or foreign objects
inside the unit
Doing so can result in fires and electric shock.
If water or foreign objects should get inside,
immediately turn the unit off and contact your
dealer or an ASTRODESIGN, Inc. sales
department.
Do not
disassemble
Do not disassemble, repair, or modify
Doing so can result in fires and electric shock.
Required
actions
If thunder is heard during outdoor use,
immediately turn the unit off, unplug
the power cord from the power outlet,
and move the unit to a safe place.
Failure to do so can result in fires and electric
shock due to lightning.
About Handling the Power Cord
Forbidden
Do not damage the power cord
Damage to the power cord can result in fires
and electric shock.
Do not modify the power cord.
Do not forcibly bend the power cord, bundle, or
tie it, and place heavy objects on it
Keep the power cord away from heaters and
do not allow it to become hot
Always grasp the plug when unplugging the
power cord.
Failure to heed this warning can result
in fire, electric shock, serious injury, or
death.
Failure to heed this caution can lead to
injury due to electric shock or other
accidents, and damage to the unit and
other property in the vicinity.
● Caution symbols
● Symbols for forbidden
actions
● Symbols for required
actions
Warning Indications
Warning
Caution
Forbidden
Do not
disassemble
Fire
Electric
shock
High
temperatures
Finger injury
hazard
Required
actions
Symbols

Safety Precautions (Always Observe)
3
About Handling the Unit
Do not install in a wobbly or unstable
location.
The unit may fall off, leading to injury or
damage to the unit.
Do not put anything on this Unit.
This may cause the unit to malfunction.
Do not place objects around this unit.
Blocking the fan may cause the unit to
malfunction.
Do not place vertically.
Temperature rise due to heat generation may
cause malfunction.
Do not use in the following environment.
It may cause a malfunction.
・Places where the ambient temperature is
outside the range of 5 to 40 °C.
・Places where the ambient humidity is
outside the range of 30 to 80% RH.
・Located near air conditioning equipment,
where there is sudden temperature change
and dew condensation.
・Places exposed to direct sunlight.
・Worse places of corrosive gases and dust.
・Places where a strong magnetic field occurs.
・Places where there is a danger of getting
splashed with water, oil, chemicals.
・Locations where vibration is transmitted from
the floor.
・Unstable place
*1: If the surface temperature of the liquid
crystal panel exceeds 60 ° C, the backlight
may be damaged.
*2: If it is exposed to direct ultraviolet rays for a
long time, the polarizing plate may become
brown and the contrast may be deteriorated,
which may impair the display quality.
Do not turn the power on again
immediately after turning off the power.
This may cause the unit to malfunction.

Safety Precautions (Always Observe)
4
About Handling the Power Cord
Be sure to connect to an outlet with a
protective ground terminal.
If the installation process is not performed, it
may cause electric shock or malfunction.
If an outlet with a protective ground terminal
cannot be used, be sure to use the FG terminal
for grounding.
Use a dedicated power supply.
Use a dedicated power supply for this unit only.
Do not use the same power source as a device
that consumes a lot of power, such as a copier,
and may generate noise.
It may cause a malfunction.
Use the power cable that came with
this unit
Use the power cable supplied with this unit for
the AC power cable.
Install this unit near an outlet to make it easier
to shut off the power.
About OLED
※Due to the nature of the liquid crystal, missing
pixels (bright spots, dead spots) may occur, but
this is not a malfunction.
Do not apply force to the area around
the screen.
・Holding or gripping the enclosure around the
screen or applying other strong forces may
damage the OLED panel.
Hold the rear handle when moving this
device.
Be careful of shards of glass if the
OLED panel is cracked.
If you accidentally damage the OLED panel, be
careful not to cut your hands with broken glass.
Handle OLED panel carefully
・Do not wipe with benzene, thinner, etc on
the panel.
・Do not allow the panel to get wet.
・Do not allow prolonged exposure to
ultraviolet light.
・Do not use this device in an environment
with excessive condensation.
・Do not hit, hit or otherwise shock the unit.

Safety Precautions (Always Observe)
5
FCC sheet
WARNING：
FCC Regulations state that any unauthorized changes or modifications to this equipment not expressly approved by the
manufacturer could void the user's authority to operate this equipment.
NOTE：
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in
a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment
in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his
own expense.
Supplier's Declaration of Conformity
Astrodesign Optical Transmission Device, AM-3825/AM-3826
This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Responsible Party:
ASTRODESIGN, lnc.
780 Montague Expressway、Suite 302 San Jose、CA 95131 U.S.A
TEL [phone] / FAX [phone]
If the Unit Malfunctions or Trouble Occurs
Stop using the unit, unplug the power cord, and contact your dealer or an ASTRODESIGN, Inc. sales department

Before operation
6
Before operation
Introduction
Thank you for purchasing the audio monitor AM-3825/AM-3826.
This instruction manual (hereinafter referred to as this manual) describes how to use the audio monitor AM-3825/AM-3826 and
precautions for use. Be sure to read this manual to ensure proper use.
Also, please keep this manual in a safe place.
Notational Conventions
In this manual, some terms are written as follows for the sake of brevity.
Item
Term used in this manual
12G-SDI Audio Monitor AM-3825/AM-3826
This unit
About bundled items
The items included in this device are as follows. If any item is missing or damaged, please contact your dealer or the sales
department of ASTRODESIGN, Inc.
Accessories
Quantity
AM-3825/AM-3826 body
1
AM-3825/AM-3826 Instruction Manual (this manual)
1
SP-3825 Main controller software(AM-3825 only supported)
1
SP-3825 Instruction Manual (AM-3825 only supported)
1
AC power cord
1
Rack mount bracket
1
・Be sure to use the included accessories. Using anything other than the accessories may cause a malfunction.
・For the rubber feet on the bottom of this device or the screws for fixing the rack mount bracket, use the specified screws provided.
Installation with screws not specified may cause a malfunction.
About difference function between AM-3825 and AM-3826
AM-3826 doesn’t have the following three functions. For details, please refer to “Chapter 3 Setting up this device”.
AM-3826 doesn’t support
Dante Input/Output function
Remapping function
(Example: Mixing AES input and Dante input with MADI output)
Control function by SP-3825 (external control application)
About bright spots and dark spots
The LCD panel of this unit is manufactured with great precision, but in rare cases there may be bright spots (always lit pixels) or
dark spots on the screen.
Please note that this is not a malfunction.
About installation
When installing this unit in a rack, install it so that the ventilation holes (intake and exhaust) on the side are not blocked to ensure
ventilation.
Also, do not use it in a place where the environmental temperature exceeds 40 degrees. Be careful not to exceed the environmental
temperature, especially when installing products on top of each other.

Before operation
7
Trademarks and registered trademarks
Dante and Dante Controller are registered trademarks of Audinate.

Contents
8
Contents
Safety Precautions (Always Observe) ....................2
Warning Indications and Their Meanings................2
FCC sheet................................................................5
If the Unit Malfunctions or Trouble Occurs..............5
Before operation........................................................6
Introduction..............................................................6
Notational Conventions ...........................................6
About bundled items................................................6
About difference function between AM-3825 and
AM-3826 ..................................................................6
About bright spots and dark spots...........................6
About installation .....................................................6
Trademarks and registered trademarks ..................7
Contents.....................................................................8
Chapter1 About this unit ........................................10
1.1 Features of this unit ........................................10
1.2 Names and functions of each part..................12
1.2.1 Front of this unit....................................12
1.2.2 Rear of this unit ....................................13
Chapter2 Preparation and basic operation of this
unit ........................................................................14
2.1 Preparation of this unit....................................14
2.2 Basic operation of this unit..............................15
2.2.1 How to switch the display of the LCD
panel.....................................................15
2.2.2 Home screen overview and operation
method .................................................16
2.2.3 Menu screen overview and operation
method .................................................16
2.2.4 How to adjust the speaker channel......17
2.2.5 How to adjust the volume.....................17
2.2.6 How to adjust the left / right volume
balance.................................................17
Chapter3 Set up this unit........................................18
3.1 Basic operation of settings............................18
3.1.1 How to move the menu ........................18
3.1.2 How to set the function.........................18
3.2 List of setting items.........................................19
3.2.1 INPUT menu.........................................19
3.2.2 Output menu.........................................23
3.2.3 Loudness menu....................................25
3.2.4 Settings menu ......................................43
3.2.5 Memory menu ......................................61
3.3 GPI List of assigned functions........................63
3.4 GPO List of assigned functions......................64
Chapter4 Check the input signal...........................65
4.1 How to switch the display ...............................65
4.2 Confirmation of input video.............................66
4.3 Checking the audio level bar..........................67
4.4 Checking the loudness level bar ....................68
4.5 Confirmation of Lissajous waveform ..............69
4.6 Checking the needle meter ............................70
4.7 Checking the spectrum analyzer....................71
4.8 Confirmation of loudness measurement ........73
4.9 Check history..................................................74
4.10 Check status.................................................75
4.11 Confirmation with 2-screen multi-display .....77
Chapter5 Useful function .......................................78
5.1 Assign functions to user buttons ....................78
Chapter6 Operation image example .....................79
Chapter7 When in trouble ......................................82
7.1 When it does not work properly......................82
7.2 If the Unit Malfunctions or Trouble Occurs.....82
7.3 When the error status is displayed.................82
Chapter8 Specifications of this unit .....................83
8.1 Main unit rear connector.................................83
8.1.1 GPIO1/GPIO2 connector .....................83
8.1.2 ANALOG IN/OUT Connector ...............86
8.1.3 DVI OUT connector..............................87
8.2 Input signal method ........................................88
8.2.1 Video signal..........................................88
8.2.2 Audio signal..........................................88
8.2.3 Other signals ........................................89
8.3 Output signal method .....................................89
8.3.1 Video signal..........................................89
8.3.2 Audio signal..........................................89
8.4 External control...............................................90
8.5 General specifications ....................................90

Contents
9
8.6 LCD panel specifications ................................90
8.7 Accessories.....................................................90
8.8 Options............................................................90
8.9 Block Diagram.................................................91
8.9.1 MONITOR BLOCK..............................91
8.9.2 OUTPUT BLOCK..................................92
8.10 Dimensions ...................................................93
8.10.1AM-3825 Dimensions...........................93
8.10.2AM-3826 Dimensions...........................94
8.10.3Cooling fan intake/exhaust port............95
Chapter9 Revision history......................................96

Chapter1 About this unit
10
Chapter1 About this unit
This chapter describes the features of this unit, and the names and functional outlines of each part.
1.1 Features of this unit
This is an audio monitor that separates the audio signal (embedded audio) superimposed on each SDI signal of 12G, 6G, 3G, HD,
and SD from the video signal, and monitors the audio using the built-in speaker or headphones.
It has AES, MADI, Dante, analog, and abundant audio input / output interfaces.
The features of this unit are as follows.
●Supported Wide variety of video formats
It supports 12G, 6G, 3G, HD, SD SDI signals and the
following video formats.
・12G-SDI compatible standard: SMPTE 2082M
standard compliant
・6G-SDI compatible standard: SMPTE 2081M standard
compliant
・3G-SDI compatible standard: SMPTE 425M standard
compliant
・HD-SDI compatible standard: SMPTE292M,
BTA S-004B standard compliant
・SD-SDI compatible standard: SMPTE 259M standard
compliant
●Wide variety of audio input/output
interfaces
Equipped with the following audio input / output connectors.
・2 SDI inputs (32ch 48kHz / 24bit PCM)
・AES3id input / output 4 systems (8ch 48kHz / 24bit
PCM)
・MADI input / output 1 system (64ch 48kHz / 24bit PCM)
・Dante input / output 1 system (64ch 48kHz / 24bit PCM)
(AM-3825 only supported)
・Analog balanced input / output 1 system (8ch A / D
48kHz / 24bit)
●Equipped with audio sampling rate
converter (SRC)
Even if you connect audio that operates at a different clock
to the input signal, the audio can be output without noise or
interruption. (AM-3825 only supported)
●ARIB TR-B32 standard (ITU-R BS.1770
standard) Measurement of loudness value
based on loudness algorithm
・The maximum continuous measurement time is 6 hours.
・The loudness measurement display can be integrated
(program average loudness value), loudness range,
short term (MAX), and momentary (MAX)
measurement.
・Supports various audio modes (Mono, ST, 5.1, 7.1,
22.2).
・It is possible to measure up to 4ES (multiple audio
modes) at the same time.
・Channel assignment of audio channels is possible in
each audio mode.
・22.2 channel audio can be 5.1 downmixed and 5.1
channel audio can be ST downmixed for measurement.
・Loop measurement between specified times is possible.
・The audio mode can be mixed and measured.
・Overwrite measurement is possible with time code
information.
* When Lch or Rch is selected in mono measurement, the
input signal is distributed to Lch / Rch, and the loudness
value can be measured.
●User button function
Simply assign a function to a user button ([U1]～ [U8]
button) and press the button to execute the function.

Chapter1 About this unit
11
●LCD with superior visibility
Using the LCD, you can visually check the sound on
various meter displays. The main meters are as follows.
・Loudness meter (ARIB TR-B32 standard (ITU-R
BS.1770 standard))
・Level bar
・VU meter
・Spectrum analyzer
・History display
・Lissajous waveform
・Picture display
・Status etc.
It also supports a multi-display function that allows you to
combine two of the above meters.
●Downmix function
You can monitor 22.2ch and 5.1ch surround sound by
5.1ch downmixing and ST downmixing.
・There is separate 5.1 downmix and ST downmix for
monitor and output, which can be operated
independently.
* Corresponding standard: ISO / IEC 13818-7: 1997 (E)
standard calculation formula, ARIB STD-B21 standard
calculation formula
●Control function by GPI remote controller
By connecting a GPI remote controller to the GPI input
connector, you can switch audio channels and load preset
data.
●Abundant expandability
・By connecting to the RJ45 connector via LAN, you can
acquire logs, make various settings, and perform
operations on your computer. (Using SP-3825 main unit
controller software) (AM-3825 only supported)
・You can enter the timecode using the TC 1/2 (analog
timecode) connector.
・An optional remote box can be connected to the GPIO
connector to connect an external control device. Please
contact us for details on the remote box.
Space saving with a 1U type thin housing that supports
rack mounting.
●Compatible with AC power
The power supply supports AC input.

Chapter1 About this unit
12
1.2 Names and functions of each part
The names and functional outlines of each part of this device are as follows. Common to AM-3825/AM-3826.
1.2.1 Front of this unit
No.
Name
Function
Reference
①
USB connector
Connect the USB device.
It is used when upgrading the firmware of this unit.
②
[VOLUME] dial
Adjusts the volume of the output audio of the speakers and
headphones.
2.2 Basic operation
③
[CH-L]
Encoder dial
Switches the sound from the left speaker. The channel number is
displayed on the LCD panel.
You can increment by channel pair by pushing the dial.
2.2 Basic operation
④
[MENU] button
Press to switch between the home screen and menu screen.
2.2 Basic operation
[LAYOUT] dial
Used to switch the layout (liquid crystal display) display.
When the menu screen is displayed, the [PUSH ENTER] button is
used to select and change menu setting items.
⑤
[ADJ] button
Used for adjustments within each layout.
Example History scrolling, status display switching
2.2 Basic operation
[ESC] button
Press while setting an item on the menu screen to return to the next
higher level of the menu.
Press at the top level to return to the home screen.
⑥
[PHONES] Jack
Plug in the headphones. (Large Ф6.3mm)
2.2 Basic operation
⑦
[BALANCE] dial
Adjust the left / right volume balance of the output sound of the
speaker and headphones.
2.2 Basic operation
⑧
[CH-R]
Encoder dial
Switches the sound from the right speaker. The channel number is
displayed on the LCD panel.
You can decrement with a channel pair by pushing the dial.
2.2 Basic operation
⑨
User button
[U１]～[U8]
Operate the function assigned to the button. The assigned function
name is displayed on the LCD panel.
2.2 Basic operation
5.1 Assign functions to
user buttons
⑩
LCD panel
When the home screen is displayed:
Display and operate the functions assigned to the user buttons and
check the status of the input signal.
When the menu screen is displayed:
Set the functions of this unit.
⑪
[OPE LOCK] switch
When the switch is turned on, the operation on the front of the unit is
locked and cannot be operated.
Lights orange when locked.
To unlock, turn the switch off.
2.2 Basic operation
⑫
Power button
Turns on / off the power of this unit.
Lights green when the power is turned on.
2.2 Basic operation
⑬
Speaker
Left and right speakers. Output audio
2.2 Basic operation
⑬
⑥
⑦
⑧
⑨
⑩
⑨
⑪
⑫
⑬
①
②
③
④
⑤

Chapter1 About this unit
13
1.2.2 Rear of this unit
No.
Name
Function
Reference
①
AC IN connector
(AC power connector)
When using AC power, connect the included AC power cord.
Specifications: AC100-240V, built-in fuse holder (2A)
2.1 Preparation
②
FG terminal
This is the ground terminal. Use when the AC power cord cannot be
grounded.
③
GPIO1/GPIO2 connector
GPIO1 / GPIO2 each has 6 inputs for GPI, 6 outputs for GPO, and 1
output for + 12V OUT. GPI can output the control of the main unit, and
GPO can output the status of the main unit. + 12V OUT can be used for
LED lighting in combination with GPO.
Specifications: D-sub 15pin (female)
④
ANALOG IN connector
It is a connector for analog balanced input.
Specifications: 1-8ch input, 600Ω balanced, pinout: TASCAM, YAMAHA
compatible
* Only speaker monitoring is supported.
ANALOG OUT connector
It is a connector for analog balanced output.
Specifications: 1-8ch output, 600Ω balanced,
pinout: TASCAM, YAMAHA compatible
⑤
AES IN connector
BNC connector for AES3id input.
Specifications: Input impedance 75Ω
AES OUT connector
BNC connector for AES3id output.
Specifications: Output impedance 75Ω
⑥
SDI A IN/OUT connector
SDI input / output connector. OUT is a reclock out.
SDI B IN/OUT connector
⑦
DVI OUT connector
1080p60Hz, 8ch AUDIO output
⑧
LAN connector
It is used when connecting a personal computer to set the main unit and
acquire logs.
Specifications: RJ-45 connector
(AM-3825 only supported)
⑨
USB connector
Connect the USB device.
To upgrade the firmware of this unit.
⑩
TC A/B IN connector
To enter analog timecode.
Specifications: Termination 10kΩ
⑪
MADI IN/OUT connector
MADI input / output terminal
Lights green during signal input. (LED indicator is displayed next to the
input terminal)
⑫
Dante
PRIMARY/SECONDARY
LAN connector
Dante audio input / output terminal (AM-3825 only supported)
64ch IN / 64ch OUT (48 kHz) 24bit PCM. RJ-45 connector
For Dante audio channel routing, use Audinate's Dante Controller
software. Refer to Audinate's Dante Controller User Guide for more
information.
※The connectors for ③, ④, and ⑦ are inch screws.
④
①
③
⑤
⑦
⑫
⑥
⑩
⑪
⑧
⑨
②

Chapter2 Preparation and basic operation of this unit
14
Chapter2 Preparation and basic operation of this unit
This chapter describes the connection, start / end, and basic operation methods of this unit.
2.1 Preparation of this unit
The connection and start / end methods of this unit are as follows.
●Connection of power supply and input device
1 Make sure that the power of this unit is off (LED is
off).
If the power is on (LED is lit in green), press the power
button to turn it off
2 Connect the included AC power cord to the AC IN
connector.
3 Connect the input device to this unit.
Connect the input device to the SDI A, B IN / OUT
connectors.
The recommended cables to use for the connection are:
SDI signal
type
Recommended
cable
Remarks
12G-SDI
BNC coaxial cable
for 12GHz band
(Belden1694A
etc.)
Input serial signal
conforming to
SMPTE2082M
6G-SDI
BNC coaxial cable
for 6GHz band
(Belden1694A
etc.)
Input serial signal
conforming to
SMPTE2081M
3G-SDI
BNC coaxial cable
for 3GHz band
(Belden1694A
etc.)
Input serial signal
conforming
SMPTE425M
HD-SDI
BNC coaxial cable
for 1.5GHz band
(Equivalent to 5C-
FB)
Input serial signal
conforming
SMPTE292M
SD-SDI
BNC coaxial cable
Input serial signal
conforming
SMPTE259M
4 In addition, connect related devices as needed.
5 Make sure the power switch is on (LED is green).
After the initialization is completed, you can use this unit.
・Do not turn off the power of this unit during initialization. It
may cause a malfunction.
●Termination of this device
● Turn off the power switch. The switch LED turns off.
・If you do not use the unit for a long time, unplug the power
cord from the outlet.
Lights up in green
Turn off

Chapter2 Preparation and basic operation of this unit
15
2.2 Basic operation of this unit
The basic operation of this unit is as follows.
2.2.1 How to switch the display of the LCD panel
●About LCD panel
The LCD panel displays a home screen that displays the functions assigned to the user buttons, operations, and speaker output
channels, and a menu screen that sets the functions of this unit.
●Switching the display between the home screen and menu screen
If you press the [MENU] button while the home screen is displayed, you can switch to the menu screen.
To switch from the menu screen to the home screen, press the [MENU] button.
・If the top level of the menu screen is displayed, you can switch to the home screen by pressing the [ESC] button.
●Switching display screen
The display screen can be switched in the following ways.
You can switch the display screen each time you press the [LAYOUT] dial.

Chapter2 Preparation and basic operation of this unit
16
2.2.2 Home screen overview and operation method
The home screen displays and operates the functions assigned to the user buttons and confirms the status of the input signal.
●User button display
The following functions are assigned to the user buttons ([U1] to [U8] buttons) at the time of shipment.
When you press each button, the corresponding function is executed.
The assignment of functions to user buttons can be changed as desired. For the allocation method, see "5.1 Assign Functions
to User Buttons".
* Check the loudness measurement results by switching the layout.
2.2.3 Menu screen overview and operation method
The setting items for this function are displayed on the menu screen.
For the operation method of the setting items, see "3.1 Basic operation of settings", and for the details of the setting items, see "3.2
List of setting items".
Input switching (SDI A)
Input switching (SDI B)
Input switching (AES)
Input switching (Analog)
Loudness start*
Loudness pause *
Loudness stop *
Loudness reset*

Chapter2 Preparation and basic operation of this unit
17
2.2.4 How to adjust the speaker channel
You can select the left channel with the [CH-L] (encoder) dial and the right channel with the [CH-R] (encoder) dial.
Press the [CH-L] (encoder) dial to increment the channel pair.
Press the [CH-R] (encoder) dial to decrement the channel pair.
2.2.5 How to adjust the volume
With the [VOLUME] dial, you can adjust the volume of the output audio from the speakers and headphones.
Turn the dial to the right to increase the volume.
Turn the dial to the left to reduce the volume.
2.2.6 How to adjust the left / right volume balance
With the [BALANCE] dial, you can adjust the left / right volume balance of the audio output from the speakers and headphones.
Turn the dial to the right to reduce the volume of Lch.
Turn the dial to the left to reduce the volume of Rch.
When the dial is set in the center, Lch and Rch have the same volume balance.

Chapter3 Set up this unit
18
Chapter3 Set up this unit
This chapter describes the settings of this unit that can be performed on the menu screen.
3.1 Basic operation of settings
3.1.1 How to move the menu
To move the menu, follow the steps below.
1 [LAYOUT] Turn the dial left or right to display the
menu to be used.
2 [LAYOUT]Press the dial to enable the setting
operation of the displayed menu.
3.1.2 How to set the function
To set the function, follow the steps below.
1 [LAYOUT] Turn the dial to highlight the setting item.
2 [LAYOUT] Press the dial.
The setting value of the selected setting item is displayed.
3 [LAYOUT] Turn the dial to select the setting value.
4 [LAYOUT] Press the dial to confirm the setting.
5 To exit the menu hierarchy of the selected setting
item, press the [ESC] button.
・To switch from the menu screen to the home screen,
press the [MENU] button.
・If the top level of the menu screen is displayed, you can
switch to the home screen by pressing the [ESC] button.
Turn the dial
Press the dialPress the dial
Press the dial

Chapter3 Set up this unit
19
3.2 List of setting items
The menu screen is roughly divided into INPUT / OUTPUT / LOUDNESS / SETTINGS / MEMORY menus, and setting items are
displayed for each.
3.2.1 INPUT menu
In the INPUT menu, select and adjust the input signal of the audio 32ch to be monitored.
・The menu contents may differ depending on the software version.
Input Select
Select the input signal.
The setting items are as follows.
Set value (initial setting: underlined)
Function
SDI A
SDI B
SDI DUAL
AES
Analog
MADI Ch1-32
MADI Ch33-64
Dante Ch1-32 ※
Dante Ch33-64 ※
When SDI A, SDI B, MADI, or Dante is selected, audio can be monitored up to
32 channels.
When MADI or Dante is selected, the audio can be monitored by switching
between the first 32ch and the second 32ch of the 64ch.
When SDI DUAL is selected, audio can be input up to 16 channels for each of
the SDI-A / SDI-B inputs, for a total of 32 channels.
When AES or Analog is selected, audio can be input up to 8ch.
※AM-3825 only supported

Chapter3 Set up this unit
20
Timecode Select
Selects the time code signal for the input signal.
The setting items are as follows.
Setting items
Set value (initial setting:
underlined)
Function
SDI A
SDI VITC,
SDI LTC,
EXT TC1,
EXT TC2,
RTC,
PC,
B39
SDI VITC: Uses VITCs multiplexed on the SDI signal.
When SDI DUAL is selected, VITC on the SDI A side is used.
SDI LTC: Uses LTC multiplexed on the SDI signal.
When SDI DUAL is selected, LTC on the SDI A side is used.
EXT TC1: Uses the external input TC1 timecode (LTC).
EXT TC2: Uses the external input TC2 timecode (LTC).
RTC: Uses the internal clock of this device.
PC: Uses a PC clock (connected to the unit via LAN).
B39: Uses the station time of the inter-station control signal multiplexed
with the SDI signal.
When SDI DUAL is selected, B39 on the SDI A side is used.
SDI B
SDI DUAL
AES
MADI
Analog
Dante ※
※AM-3825 only supported.
SDI Audio Grp per Sub image
Sets the audio group configuration used by SDI.
The setting items are as follows.
Setting
items 1
Setting items 2
Set value (initial setting:
underlined)
Function
SDI Single
12G-SDI
2, 4, 8 Groups
When SDI single (SDI A or SDI B) input is selected, select the
number of audio groups to use in each sub image. ※1
6G-SDI
2, 4 Groups
3G-SDI Level-A
2, 4, 8 Groups
SDI single (SDI A or SDI B) When selecting an input, select the
number of audio groups to use.
3G-SDI Level-B
2, 4 Groups
HD-SDI
2, 4 Groups
SD-SDI
2, 4 Groups
SDI Dual
12G-SDI
2, 4 Groups
When SDI Dual input is selected, select the number of audio
groups to use in each sub-image per LINK. ※2
6G-SDI
2, 4 Groups
3G-SDI Level-A
2, 4 Groups
When SDI Dual input is selected, select the number of audio
groups to be used per LINK. ※2
3G-SDI Level-B
2, 4 Groups
HD-SDI
2, 4 Groups
SD-SDI
2, 4 Groups
※1 SDI Single uses up to 2 sub images up to 32ch (8 groups).
※2 SDI Dual is limited to a maximum of 16 channels (4 groups) of audio channels per LINK.
At the time of SDI Dual input, the SDI A / B signal must be synchronized in the same format.