Yamaha XMV4280 User manual

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POWER AMPLIFIER
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Owner’s Manual
Bedienungsanleitung
Mode d’emploi
Manual de instrucciones
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Руководство пользователя
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XMV4280/XMV4140 Owner’s Manual
2
The above warning is located on the top of the unit.
Explanation of Graphical Symbols
The lightning flash with arrowhead symbol
within an equilateral triangle is intended to
alert the user to the presence of uninsulated
“dangerous voltage” within the product’s
enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to per-
sons.
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and mainte-
nance (servicing) instructions in the literature
accompanying the product.
IMPORTANT SAFETY INSTRUCTIONS
1 Read these instructions.
2 Keep these instructions.
3 Heed all warnings.
4 Follow all instructions.
5 Do not use this apparatus near water.
6 Clean only with dry cloth.
7 Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8 Do not install near any heat sources such as radia-
tors, heat registers, stoves, or other apparatus
(includingamplifiers) that produce heat.
9 Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plughas two blades
with one wider than the other. A groundingtype plug
has two blades and a third groundingprong. The
wide blade or the third prongare provided for your
safety. If the provided plugdoes not fit into your out-
let, consult an electrician for replacement of the
obsolete outlet.
10 Protect the power cord from beingwalked on or
pinched particularly at plugs, convenience recepta-
cles, and the point where they exit from the appara-
tus.
11 Only use attachments/accessories specified by the
manufacturer.
12 Use only with the cart, stand,
tripod, bracket, or table speci-
fied by the manufacturer, or
sold with the apparatus. When
a cart is used, use caution
when movingthe cart/appara-
tus combination to avoid injury
from tip-over.
13 Unplugthis apparatus duringlightningstorms or
when unused for longperiods of time.
14 Refer all servicingto qualified service personnel. Ser-
vicingis required when the apparatus has been dam-
aged in any way, such as power-supply cord or plug
is damaged, liquid has been spilled or objects have
fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate nor-
mally, or has been dropped.
(UL60065_03)
CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
ADVARSEL!
Lithiumbatteri—Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det
brugte batteri tilbage til leverandoren.
VARNING
Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren.
Kassera använt batteri enligt fabrikantens instruktion.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä
käytetty paristo valmistajan ohjeiden mukaisesti.
(lithium caution)

XMV4280/XMV4140 Owner’s Manual 3
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!
This product, when installed as indicated in the instructions
contained in this manual, meets FCC requirements. Modifi-
cations not expressly approved by Yamaha may void your
authority, granted by the FCC, to use the product.
2. IMPORTANT: When connecting this product to accessories
and/or another product use only high quality shielded cables.
Cable/s supplied with this product MUST be used. Follow all
installation instructions. Failure to follow instructions could
void your FCC authorization to use this product in the USA.
3. NOTE: This product has been tested and found to comply
with the requirements listed in FCC Regulations, Part 15 for
Class “B” digital devices. Compliance with these require-
ments provides a reasonable level of assurance that your
use of this product in a residential environment will not result
in harmful interference with other electronic devices. This
equipment generates/uses radio frequencies and, if not
installed and used according to the instructions found in the
users manual, may cause interference harmful to the opera-
tion of other electronic devices. Compliance with FCC regu-
lations does not guarantee that interference will not occur in
all installations. If this product is found to be the source of
interference, which can be determined by turning the unit
“OFF” and “ON”, please try to eliminate the problem by using
one of the following measures:
Relocate either this product or the device that is being
affected by the interference.
Utilize power outlets that are on different branch (circuit
breaker or fuse) circuits or install AC line filter/s.
In the case of radio or TV interference, relocate/reorient the
antenna. If the antenna lead-in is 300 ohm ribbon lead,
change the lead-in to co-axial type cable.
If these corrective measures do not produce satisfactory
results, please contact the local retailer authorized to distrib-
ute this type of product. If you can not locate the appropriate
retailer, please contact Yamaha Corporation of America,
Electronic Service Division, 6600 Orangethorpe Ave, Buena
Park, CA90620
The above statements apply ONLY to those products distrib-
uted by Yamaha Corporation of America or its subsidiaries.
* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA. (class B)
FCC INFORMATION (U.S.A.)
COMPLIANCE INFORMATION STATEMENT
(DECLARATION OF CONFORMITY PROCEDURE)
Responsible Party : Yamaha Corporation of America
Address : 6600 Orangethorpe Ave., Buena Park,
Calif. 90620
Telephone : [phone]
Type of Equipment : Power Amplifier
Model Name : XMV4280/XMV4140
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two 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.
See user manual instructions if interference to radio reception
is suspected.
* This applies only to products distributed by
YAMAHA CORPORATION OF AMERICA.
(FCC DoC)
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
WARNING: THIS APPARATUS MUST BE EARTHED IMPOR-
TANT. The wires in this mains lead are coloured in accor-
dance with the following code:
GREEN-AND-YELLOW : EARTH
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus
may not correspond with the coloured markings identifying the
terminals in your plug proceed as follows:
The wire which is coloured GREEN-and-YELLOW must be
connected to the terminal in the plug which is marked by the
letter E or by the safety earth symbol or colored GREEN or
GREEN-and-YELLOW.
The wire which is coloured BLUE must be connected to the
terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the
terminal which is marked with the letter L or coloured RED.
(3 wires)
In Finland: Laite on liitettävä suojamaadoituskoskettimilla varustettuun pistorasiaan.
In Norway: Apparatet må tilkoples jordet stikkontakt.
In Sweden: Apparaten skall anslutas till jordat uttag.
(class I hokuo)
This product contains a battery that contains perchlorate material.
Perchlorate Material—special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate.
* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA. (Perchlorate)
이 기기는 가정용(B급) 전자파적합기기로서 주로 가정에서 사용하는 것을 목적으
로 하며, 모든 지역에서 사용할 수 있습니다.
(class b korea)

XMV4280/XMV4140 Owner’s Manual
4
PRECAUTIONS
PLEASE READ CAREFULLY BEFORE PROCEEDING
* Please keep this manual in a safe place for future reference.
WARNING
Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from
electrical shock, short-circuiting, damages, fire or other hazards. These precautions include, but are not limited
to, the following:
• Do not place the power cord near heat sources such as heaters or radiators,
and do not excessively bend or otherwise damage the cord, place heavy
objects on it, or place it in a position where anyone could walk on, trip over,
or roll anything over it.
• Only use the voltage specified as correct for the device. The required voltage
is printed on the name plate of the device.
• Use only the supplied power cord/plug.
If you intend to use the device in an area other than in the one you
purchased, the included power cord may not be compatible. Please check
with your Yamaha dealer.
• Check the electric plug periodically and remove any dirt or dust which may
have accumulated on it.
• Be sure to connect to an appropriate outlet with a protective grounding
connection. Improper grounding can result in electrical shock.
• This device contains no user-serviceable parts. Do not open the device or
attempt to disassemble the internal parts or modify them in any way. If it
should appear to be malfunctioning, discontinue use immediately and have
it inspected by qualified Yamaha service personnel.
• Do not expose the device to rain, use it near water or in damp or wet
conditions, or place on it any containers (such as vases, bottles or glasses)
containing liquids which might spill into any openings. If any liquid such as
water seeps into the device, turn off the power immediately and unplug the
power cord from the AC outlet. Then have the device inspected by qualified
Yamaha service personnel.
• Never insert or remove an electric plug with wet hands.
• Do not put burning items, such as candles, on the unit. A burning item may
fall over and cause a fire.
• When one of the following problems occur, immediately turn off the power
switch and disconnect the electric plug from the outlet. Then have the device
inspected by Yamaha service personnel.
- The power cord or plug becomes frayed or damaged.
- It emits unusual smells or smoke.
- Some object has been dropped into the instrument.
- There is a sudden loss of sound during use of the device.
• If this device should be dropped or damaged, immediately turn off the power
switch, disconnect the electric plug from the outlet, and have the device
inspected by qualified Yamaha service personnel.
CAUTION
Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or
damage to the device or other property. These precautions include, but are not limited to, the following:
• When removing the electric plug from the device or an outlet, always hold
the plug itself and not the cord. Pulling by the cord can damage it.
• Remove the electric plug from the outlet when the device is not to be used
for extended periods of time, or during electrical storms.
• Do not place the device in an unstable position where it might accidentally
fall over.
• Do not block the vents. This device has ventilation holes at the front/rear/
side to prevent the internal temperature from becoming too high. In
particular, do not place the device on its side or upside down. Inadequate
ventilation can result in overheating, possibly causing damage to the
device(s), or even fire.
• Do not use the device in a confined, poorly-ventilated location. If this device
is to be used in a small space other than an EIA-standard rack, make sure
that there is adequate space between the device and surrounding walls or
other devices: at least 10 cm at the sides, 10 cm behind and 40 cm above.
Inadequate ventilation can result in overheating, possibly causing damage to
the device(s), or even fire.
• Do not place the device in a location where it may come into contact with
corrosive gases or salt air. Doing so may result in malfunction.
• Before moving the device, remove all connected cables.
• When setting up the device, make sure that the AC outlet you are using is
easily accessible. If some trouble or malfunction occurs, immediately turn
off the power switch and disconnect the plug from the outlet. Even when the
power switch is turned off, electricity is still flowing to the product at the
minimum level. When you are not using the product for a long time, make
sure to unplug the power cord from the wall AC outlet.
• If the device is mounted in an EIA standard rack, carefully read the section
“Precautions for Rack Mounting” on page 7. Inadequate ventilation can
result in overheating, possibly causing damage to the device(s),
malfunction, or even fire.
• Before connecting the device to other devices, turn off the power for all
devices. Before turning the power on or off for all devices, set all volume
levels to minimum.
• Use only speaker cables for connecting speakers to the speaker connectors.
Use of other types of cables may result in fire.
• Remove the power plug from the AC outlet when cleaning the device.
Power supply/Power cord
Do not open
Water warning
Fire warning
If you notice any abnormality
Power supply/Power cord
Location
Connections
Maintenance
PA_en_1 1/2

XMV4280/XMV4140 Owner’s Manual 5
• Do not insert your fingers or hands in any gaps or openings on the device
(vents).
• Avoid inserting or dropping foreign objects (paper, plastic, metal, etc.) into
any gaps or openings on the device (vents) If this happens, turn off the
power immediately and unplug the power cord from the AC outlet. Then
have the device inspected by qualified Yamaha service personnel.
• Do not rest your weight on the device or place heavy objects on it, and avoid
use excessive force on the buttons, switches or connectors.
• Do not use speakers for a long period of time at a high or uncomfortable
volume level, since this can cause permanent hearing loss. If you experience
any hearing loss or ringing in the ears, consult a physician.
• This device has a built-in backup battery. When you unplug the power cord
from the AC outlet, the internal data is retained. However, if the backup
battery fully discharges, this data will be lost. When the backup battery is
running low, the display indicates “010.” or “011.” and the ALERT indicator
is blinking. In this case, immediately save the data to external device such as
a computer, then have qualified Yamaha service personnel replace the
backup battery.
Always turn the power off when the device is not in use.
NOTICE
To avoid the possibility of malfunction/ damage to the product, damage to data, or damage to other property, follow the notices below.
Handlingand Maintenance
• Do not use the device in the vicinity of a TV, radio, stereo equipment, mobile phone, or other electric devices. Otherwise, the device,
TV, or radio may generate noise.
• Do not expose the device to excessive dust or vibration, or extreme cold or heat (such as in direct sunlight, near a heater, or in a car
during the day), in order to prevent the possibility of panel disfiguration, unstable operation, or damage to the internal components.
• Do not place vinyl, plastic or rubber objects on the device, since this might discolor the panel.
• When cleaning the device, use a dry and soft cloth. Do not use paint thinners, solvents, cleaning fluids, or chemical-impregnated wip-
ing cloths.
• Condensation can occur in the device due to rapid, drastic changes in ambient temperature—when the device is moved from one
location to another, or air conditioning is turned on or off, for example. Using the device while condensation is present can cause dam-
age. If there is reason to believe that condensation might have occurred, leave the device for several hours without turning on the
power until the condensation has completely dried out.
• Do not use this device for any purpose other than driving loudspeakers.
• When turning on the AC power in your audio system, always turn on tthe device LAST, to avoid speaker damage. When turning the
power off, the device should be turned off FIRST for the same reason.
• Always turn the power off when the device is not in use.
Savingdata
This device has a built-in backup battery that maintains data in internal memory even when the device’s power is switched off. The
backup battery will eventually become depleted, however, and when that happens the contents of the internal memory will be lost.*
To prevent loss of data be sure to replace the backup battery before it becomes fully depleted. When the remaining capacity of the
backup battery becomes so low that it needs to be replaced a “010.” or “011.” message will appear on the display during operation or
when the device is powered on. If either of these messages appears do not turn off the power and immediately transfer any data you
want to save to a computer or other external storage device, then have qualified Yamaha service personnel replace the backup battery.
The average life of the internal backup battery is approximately 5 years, depending on operating conditions.
* Data items maintained in the internal memory by the backup battery are as follows:
• Device parameters (Attenuator values, Polarity settings, HPF settings, Analog/digital input setting, and [SIGNAL] indicator display
setting).
• Event log.
Information
About this manual
• The illustrations as shown in this manual are for instructional purposes only, and may appear somewhat different from those on your
device.
• The company names and product names in this manual are the trademarks or registered trademarks of their respective companies.
Handling caution
Backup battery
Yamaha cannot be held responsible for damage caused by improper use or modifications to the device, or data that is lost or destroyed.
European Models
Inrush Current based on EN 55103-1:2009
10A (on initial switch-on)
5A (after a supply interruption of 5s)
Conforms to Environments: E1, E2, E3 and E4
PA_en_1 2/2

XMV4280/XMV4140 Owner’s Manual
6
Contents
Introduction.....................................................................................................................7
Features.................................................................................................................................. 7
Related manuals and software................................................................................................ 7
Firmware Updates................................................................................................................... 7
Precautions for Rack Mounting ........................................................................................ 7
Controls and Functions .................................................................................................8
Front Panel.............................................................................................................................. 8
Rear Panel ............................................................................................................................ 10
Setup..............................................................................................................................13
Usingand connectingthe [REMOTE] connector and
[FAULT OUTPUT] connector ......................................................................................18
Using the [REMOTE] connector (Euroblock 3-pin) ............................................................... 18
Using the [FAULT OUTPUT] connector (Euroblock 3-pin) .................................................... 18
Connecting the [REMOTE] connector or [FAULT OUTPUT] connector ................................ 19
List of Front Panel Operations ....................................................................................20
Initializingthe Internal Memory...................................................................................22
Troubleshooting...........................................................................................................23
Alert Numbers and Content.........................................................................................24
High-impedance and Low-impedance Connections .................................................25
Multiple Speaker System Drive Capability ............................................................................ 25
Transmission Distance and Efficiency................................................................................... 26
Specifications .............................................................................................................201
XMV4280/XMV4140 Block Diagram ...........................................................................203
Dimensions .................................................................................................................203
Current Draw...............................................................................................................204
Included items (please check)
• Owner’s Manual
•Powercord
• Euroblock plugs (3-pin) x 2
• Euroblock plugs with tabs (3-pin) x 4
• Cable ties x 4

XMV4280/XMV4140 Owner’s Manual 7
Introduction
Thank you for your purchase of the Yamaha XMV4280 or XMV4140 power amplifier. Please read
through this manual carefully before beginning use, so that you will be able to take full advantage of
your power amplifier’s superlative features and enjoy trouble-free operation for years to come.
After you have read the manual, keep it in a safe place for reference when needed.
The XMV is a multi-channel power amplifier with the follow-
ing features.
• Both high-impedance and low-impedance connec-
tions are supported
Both high-impedance connections to 70V/100V lines and
4Ω/8Ω low-impedance connections are supported. A rear
panel DIP switch allows this setting to be specified for every
two channels.
• Newly-developed “Double Power mode”
The newly-developed “Double Power mode” doubles the
amplifier output of each channel when low-impedance con-
nections are used.
* The number of available channels will be halved.
•Settings can be made via application software
Although settings such as mute on/off and attenuator values
can be edited from the panel of the amplifier itself, you can
use an MTX series matrix processor and computer to edit the
settings of multiple XMV units.
• Support for the newly-developed “YDIF” digital
audio transmission format
This allows up to 16 channels of audio and word clock to be
transmitted and received via an Ethernet cable.
This model can receive four channels of audio signals via
YDIF.
•High efficiency
The newly-developed output circuits allows high efficiency.
You can easily configure a complete sound system featuring the
XMV by connecting it to MTX series matrix processors or to
MTX Editor system configuration software. The owner’s man-
ual for the MTX and for MTX Editor, and MTX Editor itself
(subsequently referred to as “the editor”) can be downloaded
from the download page of the following website.
http://www.yamahaproaudio.com/
• List of related manuals
The firmware version of the XMV itself can be checked from
Editor. You can update the firmware via Editor.
You can download the latest firmware from the “Downloads”
page on the following website.
http://www.yamahaproaudio.com/
NOTE
• When there are differences in the specifications of the XMV4280 and the XMV4140, this manual will use curly brackets { } to
enclose information that applies only to the XMV4140.
(Example: 280W {140W}).
• Unless otherwise specified, illustrations are taken from the XMV4280.
Features Related manuals and software
MTX3 Owner’s
Manual
This explains how to use the MTX3
matrix processor.
MTX Editor User’s
Manual This explains how to use MTX Editor.
MTX Setup Manual
This explains how to use and set up
the MTX3 matrix processor that is
used along with the XMV power amp.
NOTE
In order to view the downloaded manuals, Adobe Reader must
be installed in your computer. If you don’t have Adobe Reader,
please access the Adobe Corporation’s website at the following
URL, and download Adobe Reader (free of charge).
http://www.adobe.com/
Firmware Updates
Precautions for Rack Mounting
This unit is rated for operation at ambient temperatures ranging from 0 to 40 degrees Celsius. When mounting the unit with
other XMV unit(s) or other device(s) in an EIA standard equipment rack, internal temperatures can exceed the specified upper
limit, resulting in impaired performance or failure. When rack mounting the unit, always observe the following requirements to
avoid heat buildup:
• When mounting the unit in a rack with devices such as power amplifiers that generate a significant amount of heat, leave
more than 1U of space between the XMV and other equipment. Also either leave the open spaces uncovered or install
appropriate ventilating panels to minimize the possibility of heat buildup.
• To ensure sufficient airflow, leave the rear of the rack open and position it at least 10 centimeters from walls or other sur-
faces. If the rear of the rack can’t be left open, install a commercially available fan or similar ventilating option to secure suf-
ficient airflow. If you’ve installed a fan kit, there may be cases in which closing the rear of the rack will produce a greater
cooling effect. Refer to the rack and/or fan unit manual for details.

XMV4280/XMV4140 Owner’s Manual
8
Controls and Functions
qPower Switch
Turns power to the unit ON or OFF. Setting the switch to the
upward position turns the power on; the [POWER] indicator
will light green. Setting the switch to the downward position
turns the power off. If the switch is in the upward position
and the [POWER] indicator is blinking, the unit is in standby
mode.
w[PROTECTION] indicators A/B/C/D
When the protection system is active, the indicator will light
orange. If the audio output is muted, turn off the power and
wait for the XMV to cool before turning the power on again.
The protection circuit will operate in the following situa-
tions.
If the amplifier overheats and the output lim-
iter operates
The speaker output will be attenuated if the heat sink of
the amplifier section exceeds 80°C (80%), and will be
muted if the heat sink exceeds 90°C (90%). The [PRO-
TECTION] indicator will light at 80°C (80%) or higher.
If the power supply overheats and shuts-down
The fan will rotate at high speed if the power supply sec-
tion exceeds 90°C, and the analog circuits will shut down
if it exceeds 100°C.
The [PROTECTION] indicator will light at 100°C or
higher.
When overcurrent is detected
If for any reason the impedance falls below rated, the
speaker output is muted to prevent overcurrent; muting
will be cancelled after approximately one second. If over-
current is detected after muting is cancelled, the output
will be muted again.
If DC output is detected
The power supply section will be shut down.
If excessive total current or maximum current
is detected
The output signal will be compressed.
e[LIMIT] indicators A/B/C/D
When the limiter operates, the speaker output will be limited
and the indicator will light red. Lower the attenuator value so
that the limiter does not operate. The limiter will operate in
the following situations.
• When an instantaneous input overload is detected
• When an input overload has been occurring for a specific
duration
• When the heat sink of the amplifier section exceeds the
allowable temperature
r[SIGNAL] indicators A/B/C/D
The indicator will light when the input from the analog input
connector / [YDIF] connector or the output from the
[SPEAKERS] connector rises above a certain level.
If the [SIGNAL] indicator is set to show the input from the
analog input controller / [YDIF] connector, it will light when
the signal level is greater than -40 dBFS.
If it is set to show the output from the [SPEAKERS] connec-
tor, the indicator will light when the indicator on the
XMV4280 will light when the signal level exceeds 1 Vrms
in 280W/8Ω mode. Refer to “[SIGNAL] Indicator Lit Level”
in the Specifications for the indicator illumination conditions
in each mode.
For details on switching the indicator between input and out-
put, refer to “List of Front Panel Operations” (page 20).
Front Panel
q wer!6 !6 !0
i t u !5o
!1 !2 !3
!4
y
CAUTION
• To ensure that high-volume noise is not output from
the speakers, power-on the equipment startingwith
the audio sources, then the mixer and processors
(such as the MTX), and finally the amplifiers. Reverse
this order when turningthe system off.
• Rapidly turningthe power switch ON and OFF in suc-
cession can cause the unit to malfunction. After turn-
ingthe power switch OFF, wait for about 5 seconds
before turningit ON again.
• If you modified parameter settings, do not turn the
power switch OFF for at least one second. Otherwise,
the changes to the settings may be lost.

Controls and Functions
XMV4280/XMV4140 Owner’s Manual 9
t[SELECT] buttons/indicators A/B/C/D
Use these buttons to select the output channel that you want
to control. The indicator of the selected channel will light.
By using these in conjunction with the [FUNCTION] button,
you can change the parameter that is controlled by the
encoder. Refer to “List of Front Panel Operations” (page 20).
When the [PANEL LOCK] indicator is lit, front panel opera-
tions are locked, and output channel operations are not possi-
ble. Defeat the lock if you want to perform these operations.
yDisplay
This is a 3-digit 7-segment display that shows information
such as the attenuator value of the selected channel.
uEncoder
This encoder is used to edit parameters. For details on the
available parameters, refer to “List of Front Panel Opera-
tions” (page 20).
When the [PANEL LOCK] indicator is lit, front panel opera-
tions are locked, and settings cannot be edited. Defeat the
lock if you want to perform these operations.
i[MUTE] indicators A/B/C/D
When you mute an output channel by operating the unit
itself or by operations via the [REMOTE] connector or the
editor, the indicator of the corresponding channel will light
yellow. When the power is turned on, the output signal will
also be muted and the indicator will blink yellow until audio
starts to be output.
o[MUTE] button
By holding down the [MUTE] button and pressing the
[SELECT] button, you can switch muting on/off for the
channel selected by the [SELECT] button. When muting
turns on, the [MUTE] indicator will light.
When the [PANEL LOCK] indicator is lit, front panel opera-
tions are locked, and channel mute operations are not possi-
ble. Defeat the lock if you want to perform these operations.
!0 [POWER] indicator
This will light when the power supply is turned on by the
power switch (q).
It will blink when the unit is switched to standby mode via
the [REMOTE] connector or the editor.
!1 [ALERT] indicator
This will blink or light when an abnormality occurs in the
unit.
If this is blinking, note the indication in the display and refer
to “Alert Numbers and Content” (page 24).
If it is lit, stop operating the unit. After a time, the indicator
will change to blinking, and an alert number will appear in
the display.
!2 [NETWORK] indicator
This will light green if the XMV is in a linked state with an
external device via the NETWORK connector. It will blink
while data is being communicated.
!3 [YDIF] indicator
This will light green when the [YDIF] connector is con-
nected normally and a valid word clock is being input.
!4 [PANEL LOCK] indicator
!5 [FUNCTION] button
Use this to check or change the operating mode of the
XMV’s front panel. For details on how to perform front
panel operations, refer to “List of Front Panel Operations”
(page 20).
!6 Coolingvent
Located behind the vent is a variable speed cooling fan that
draws air in from the front and exhausts it through the rear.
The fan speed will automatically vary according to the tem-
perature.
Please be sure that you do not block the air intakes or
exhaust vents. You should also clean the air intakes and
exhaust vents regularly. If the air intakes are clogged with
dust or debris, the amplifier will overheat, which may result
in the amplifier shutting down.
NOTE
Even if muting is off, this indicator will blink when the protec-
tion circuit has operated to mute the output.
Indicator Status
Lit Front panel operations are locked.
Unlit Front panel operations are not locked.
Blinking
Lock is temporarily defeated. When the
XMV is restarted, it will be in a locked
state, and the indicator will light.
NOTE
Lock will be temporarily defeated if you press the [FUNC-
TION] button and the [SELECT] A button.

Controls and Functions
XMV4280/XMV4140 Owner’s Manual
10
!7 NETWORK connector
This is a 100BASE-TX Ethernet connector that allows the
unit to be connected to a computer via an Ethernet cable.
!8 [YDIF] connectors
These are RJ-45 connectors that allow the unit to be con-
nected via an Ethernet cable to another YDIF-equipped
device so that audio signals and word clock signals can be
transmitted and received. Use these to link other devices
equipped with a [YDIF] connector. For details on settings for
receiving audio signals via the [YDIF] connector, refer to
“List of Front Panel Operations” (page 20).
Cables used for this connection should be 30 meters or less
between devices.
For information on connections that use [YDIF] connectors,
refer to the “MTX Setup Manual.”
!9 [UNIT ID] rotary switch
If multiple devices such as XMVs or MTXs are connected
on the same network, this rotary switch enables you to spec-
ify the UNIT ID that identifies each XMV unit individually.
@0 Device setup DIP switch
This DIP switch is used to make settings for the XMV. Refer
to the following for details on the settings.
Switch 1, 2, 3 (UNIT ID)
Use these DIP switches to specify the upper digit, and use
the [UNIT ID] rotary switch to specify the lower digit to
set a maximum of 127 combinations of UNIT ID in the
range of 01 through 7F (127).
Rear Panel
1 2 3 4 5 6 7 8
ON
ON
@5@4@2!7 @6
@1 @3
!8 !9
@0
NOTE
• Use a CAT5e or better STP (Shielded Twisted Pair) cable
for the NETWORK connection to prevent electromagnetic
interference.
• When using MTX Editor to control the XMV, you must con-
nect the MTX.
NOTE
To prevent electromagnetic interference, make connections
to the [YDIF] connector using a CAT5e or better STP
(Shielded Twisted Pair) cable in which all pins are con-
nected with a straight connection.
NOTE
• Do not use “00” as the UNIT ID.
• After you set the [UNIT ID] rotary switch, turn the power to
the unit off and then on.
NOTE
To change the switch settings, turn off the power to the unit.
If you change the settings while the power is on, the change
will not be effective until you turn the unit off and then on.
DIP Switches SettingDescription
The UNIT ID’s
upper digit is
set to 0.
The setting range of the
[UNIT ID] rotary switch is
from 01 through 0F.
The UNIT ID’s
upper digit is
set to 1.
The setting range of the
[UNIT ID] rotary switch is
from 10 through 1F.
The UNIT ID’s
upper digit is
set to 2.
The setting range of the
[UNIT ID] rotary switch is
from 20 through 2F.
The UNIT ID’s
upper digit is
set to 3.
The setting range of the
[UNIT ID] rotary switch is
from 30 through 3F.
The UNIT ID’s
upper digit is
set to 4.
The setting range of the
[UNIT ID] rotary switch is
from 40 through 4F.
The UNIT ID’s
upper digit is
set to 5.
The setting range of the
[UNIT ID] rotary switch is
from 50 through 5F.
The UNIT ID’s
upper digit is
set to 6.
The setting range of the
[UNIT ID] rotary switch is
from 60 through 6F.
The UNIT ID’s
upper digit is
set to 7.
The setting range of the
[UNIT ID] rotary switch is
from 70 through 7F.
12345678

Controls and Functions
XMV4280/XMV4140 Owner’s Manual 11
Switch 4 (LED DIMMER)
This specifies the brightness of the front panel indicators
and display.
Switch 5 (PANEL LOCK)
This specifies the front panel lock setting (locks all panel
operations including the [MUTE] button and attenuation
adjustments). By selecting the LOCK setting after you’ve
completed all settings, you can prevent the volume or
mute settings from being inadvertently changed.
Even if the LOCK setting is selected, you can temporarily
unlock the panel by pressing the [FUNCTION] button
and the [SELECT] A button. The panel will be re-locked
when one minute has passed without any operation being
performed, or when you once again press the [FUNC-
TION] button and the [SELECT] A button, or when you
turn off the power.
Switch 6 (IP SETTING)
This selects whether the UNIT ID value will be used as
the IP address for the unit to communicate with a com-
puter, or whether the IP address will be assigned by the
editor or the DHCP server.
Switches 7 and 8 (START UP MODE)
These specify the startup mode of the XMV.
@1 Analoginput connectors
These are Euroblock 3-pin analog audio input connectors.
For details on settings for receiving audio signals via the
analog input connectors, refer to “List of Front Panel Opera-
tions” (page 20).
For details on how to attach Euroblock connectors, refer to
the “Setup” section entitled “Connecting the analog inputs
(Euroblock)” (page 13).
@2 [SPEAKERS] DIP switch
This DIP switch makes settings for the XMV’s amplifier in
groups of two channels.
Switches 1 through 4 specify the output setting for channels
C/D, and switches 5 through 8 specify the output setting for
channels A/B.
Use these switches to make the following settings.
* If this setting is chosen, input/output will be disabled for
channels B and D.
Low impedance connection / high impedance
connection (switches 1 and 5)
These select either a low impedance connection or a high
impedance connection. Set them as appropriate for the
connected speakers and the way in which the speakers are
connected. For details on connections, refer to “High-
impedance and Low-impedance Connections” (page 25).
Impedance (switches 3 and 7)
When using a low impedance connection, set these as
appropriate for the impedance of the speakers that are
connected. Check the specifications of the speakers.
For example if two 8Ω speakers are connected in parallel,
the total impedance will be 4Ω.
Double Power mode (switches 4 and 8)
When a low impedance connection is used, these
switches specify the output of the amplifier. If the 280W
{140W} setting is selected, input/output is enabled for
both channels. If the 560W {280W} setting is selected,
the output from the amplifier will be doubled, but input/
output will be disabled for channels B and D.
70V/100V (switches 2 and 6)
When a high impedance connection is used, these
switches specify the maximum output voltage (Vrms) of
the amplifier.
DIP Switches SettingDescription
OFF Normal brightness.
ON
Reduced brightness. Use
this setting if the indicators
and the display are too
bright.
NOTE
The brightness of the [POWER] indicator will not be
reduced.
DIP Switches SettingDescription
UNLOCK The front panel will not be
locked.
LOCK
Front panel operations
other than the power will be
locked.
DIP Switches SettingDescription
UNIT ID
The IP address will be
specified using the UNIT ID
value.
The IP address will be
192.168.0.xxx (xxx is the
UNIT ID value).
PC
The IP address will be
specified by the editor or
the DHCP server.
DIP Switches SettingDescription
RESUME The unit will start up nor-
mally.
INITIALIZE
The internal memory will be
initialized. For details on the
memory that will be initial-
ized, refer to “Initializing the
Internal Memory” (page 22).
Description
Switches 1–4
(channels C/D)
Switches 5–8
(channels A/B)
Low-impedance
Connection
280W{140W}, 8Ω
560W{280W}*, 8Ω
280W{140W}, 4Ω
560W{280W}*, 4Ω
High-impedance
Connection
70V, 250W{125W}
100V, 250W{125W}

Controls and Functions
XMV4280/XMV4140 Owner’s Manual
12
@3 [SPEAKERS] output connectors
These are barrier strip type speaker output connectors. For
details on how to make connections to a barrier strip, refer to
the “Setup” section entitled “Connecting the speaker output
connectors” (page 15).
@4 [REMOTE] connector
This is a Euroblock 3-pin connector that allows muting/
unmuting of all channels and power-on/standby to be con-
trolled remotely. For details, refer to “Using and connecting
the [REMOTE] connector and [FAULT OUTPUT] connec-
tor” (page 18).
@5 [FAULT OUTPUT] connector
This is a Euroblock 3-pin connector that allows an external
device to be controlled when a fatal malfunction occurs in
this unit. NC and C will be shorted when the amplifier is
operating normally; NO and C will be shorted when a prob-
lem occurs (page 18).
If a problem occurs, the [PROTECTION] indicator will
light.
@6 [AC IN] socket
Connect the supplied AC power cord here. First connect the
AC power cord to the socket on the rear panel of this unit,
then plug it into an appropriate AC power outlet.
CAUTION
Before connectingor disconnectingthe power cord,
make sure that the power to the unit is turned OFF.

XMV4280/XMV4140 Owner’s Manual 13
Setup
This chapter explains how to set up the XMV to input analog signals.
If you are using the XMV along with the MTX, refer to the “MTX Setup Manual.”
Here we will make and verify the input/output settings as out-
lined below.
Rack-mounting the unit
Refer to “Precautions for Rack Mounting” (page 7), and
mount the XMV in your rack.
Checking the device setup DIP switch set-
tings
Make sure that all of the rear panel’s device setup DIP
switches are in the upward position.
Connecting the analog inputs (Euroblock)
Connect the analog outputs of your mixer or other device to
the analog input connectors of the XMV.
You must use the supplied Euroblock plugs with tabs.
If these have been lost, please contact your Yamaha dealer.
NOTE
Refer to this manual for details regarding the following items, even if you are using the XMV along with the MTX.
• Making settings for speaker output
• Connecting the speaker output connectors
• Making high pass filter (HPF) settings
• Lowering the brightness of the indicators and the display
• Locking the panel
Explanation Page
Rack-mounting the unit 13
Checking the device setup DIP switch settings 13
Connecting the analog inputs (Euroblock) 13
Making settings for speaker output 14
Connecting the speaker output connectors 15
Connecting the power cord 15
Turning the power on 16
Enabling analog input 16
Making high pass filter (HPF) settings 16
Checking the wiring 17
Lowering the brightness of the indicators and the
display 17
Locking the panel 17
CAUTION
Steps earlier than “Turningthe power on” must be per-
formed with the power off. If you perform these steps with
the power on, the settings might not be applied, or you
might be subject to electrical shock if you touch the con-
nectors.
12345678
Cable preparation
• To prepare the cable for attachment to a Euroblock
connector, strip the wire as shown in the illustration
using stranded wire to make connections. With a
Euroblock connection, stranded wires may be prone
to breakage because of metal fatigue due to the
weight of the cable or due to vibration. Bundle the
cables and the Euroblock tabs using the supplied
cable ties (page 14). When rackmounting your
equipment, use a lacing bar when possible to bun-
dle and fasten the cables.
• If cables will be frequently connected and discon-
nected, as in the case of a portable installation, we
recommend that you use ferrules with insulation
sleeves. Use a ferrule whose conductor portion has
an external diameter of 1.6 mm or less, and a length
of approximately 7 mm (such as the AI0,5-6WH
made by the Phoenix Contact corporation).
approx.
7 mm
approx.20 mm
NOTE
Do not tin (plate with solder) the exposed end.
1.6 mm or less approx.
7 mm

Setup
XMV4280/XMV4140 Owner’s Manual
14
1. Loosen terminal screws.
2. Insert cables.
3. Securely tighten terminal screws.
Pull the cables (not too strongly) to confirm that they are
securely connected.
4. Bundle the cables and the Euroblock tab
usingthe supplied cable tie.
5. Insert the Euroblock pluginto the Analog
input connector of the device.
Making settings for speaker output
Use the rear panel [SPEAKERS] DIP switches to make the
appropriate settings for the XMV’s speaker output.
The method of connection will differ depending on whether
you’re using a low impedance connection or a high imped-
ance connection.
Low-impedance connection
High-impedance connection
For details, refer to “High-impedance and Low-impedance
Connections” (page 25).
The explanation of the settings is divided into the following
sections.
When usinglow impedance connections (page
14)
When usinglow impedance connections with
Double Power mode (page 15)
When usinghigh impedance connections
(page 15)
Since these settings can be made independently for channels
A/B and channels C/D, you can use more than one of the
above methods
When using low impedance connections
Depending on the impedance (4Ω or 8Ω) of the connected
speakers, set the [SPEAKERS] DIP switches as follows.
The XMV features a switch function between 8Ω and 4Ω to
guarantee the output in case it is connected to a speaker with
an impedance of 8Ω or higher.
If you connect a speaker with an impedance of 8Ω or higher,
set the [SPEAKERS] DIP switches to 8Ω. If you connect a
speaker with an impedance of 4Ω or higher, but lower than
8Ω, set the [SPEAKERS] DIP switches to 4Ω.
NOTE
A slotted screwdriver with a blade width of about 3 milli-
meters is recommended.
NOTE
Trim any excess part of the cable tie as necessary.
Loosen.
Slotted screwdriver
Terminal screw
Euroblock plug
Tab
3 mm or less
+
–
G
Setting
Switches 1–4
(channels C/D)
Switches 5–8
(channels A/B)
280W{140W}, 8Ω
280W{140W}, 4Ω
NOTE
If you make settings for low impedance connections, the
HPF will automatically be turned OFF.
Total impedance(x) Setting
4Ω x 8Ω 4Ω
8Ω x 8Ω
8Ω/4Ω
10W10W10W10W10W
70V/100V
Speaker transformer

Setup
XMV4280/XMV4140 Owner’s Manual 15
When using low impedance connections with
Double Power mode
If you use Double Power mode, input/output will be dis-
abled for channel B and channel D.
Depending on the impedance (4Ω or 8Ω) of the connected
speakers, set the [SPEAKERS] DIP switches as follows.
When using high impedance connections
Depending on the specifications (70V or 100V) of the
system in which this unit is being installed, set the
[SPEAKERS] DIP switches as follows.
Connecting the speaker output connectors
The speaker output connectors on the rear panel are barrier
strip type connectors. We will explain connections using a
spade lug and connections using a bare conductor.
If using a spade lug
From below, insert the spade lug all the way, and tighten
the screw.
If using a bare conductor
Wrap the conductor around the barrier strip terminal as
shown below, and tighten the screw. Be sure that the bare
wire does not touch the chassis.
Connecting the power cord
Connect the included power cord to the [AC IN] connector
on the rear panel. First connect the AC power cord to the
socket on this unit, then plug it into an appropriate AC power
outlet.
Setting
Switches 1–4
(channel C)
Switches 5–8
(channel A)
560W{280W}, 8Ω
560W{280W}, 4Ω
NOTE
If you make settings for low impedance connections, the
HPF will automatically be turned OFF.
Setting
Switches 1–4
(channels C/D)
Switches 5–8
(channels A/B)
70V
100V
NOTE
If you make settings for high impedance connections,
the HPF will automatically be set to 80 Hz.
CAUTION
Make sure that the power is turned off. If the power is
on, you risk electrical shock.
0.17"
(4.32mm)
<0.33"
(<8.38mm)
=
=
NOTE
• If the [SPEAKERS] DIP switch 4 is in the lowered posi-
tion (Double Power mode), even if you do connect a
cable, audio will not be output from channel D.
• If the [SPEAKERS] DIP switch 8 is in the lowered posi-
tion (Double Power mode), even if you do connect a
cable, audio will not be output from channel B.
• Ensure that tension is not applied to the speaker cable.
• Connect the cables so that the amplifier’s “+” and “-”
symbols match those of the speaker. If they are
reversed, the phase will be inverted.
TIPS
Since a large amount of current can flow in a speaker
cable, a magnetic field will be generated. If sensitive cir-
cuits such as a microphone input cable or a microphone
amp are located near a speaker cable, electromagnetic
induction may produce noise in the input cable or circuit.
Input cables and devices that contain sensitive circuits
should be kept at a distance from speaker cables; we
also recommend that you fasten the cables in place.
CAUTION
You must turn off the power before connectingthe
power cord.
15mm*
* Actual size Speaker cable
Wire should
not touch
the chassis.

Setup
XMV4280/XMV4140 Owner’s Manual
16
Turning the power on
Use the front panel power switch to turn the power on.
Enabling analog input
Using the front panel, enable analog input as follows.
1. While holdingdown the [FUNCTION] but-
ton, turn the encoder to make the display
indicate “SRC.”
The control mode will change to “Analog/digital input
selection.”
2. Take your finger off the [FUNCTION] button,
and turn the encoder to make the display
indicate “ANA.”
Input from the analog input connectors will be enabled.
Making high pass filter (HPF) settings
If the unit is set for low impedance connections, the HPF
will be OFF. If the unit is set for high impedance connec-
tions, the 80 Hz HPF will be enabled.
If you want to change this setting, proceed as follows.
1. While holdingdown the [FUNCTION] but-
ton, turn the encoder to make the display
indicate “HPF.”
The control mode will change to “HPF.”
2. Press the [SELECT] button of the channel
for which you want to make HPF settings.
The [SELECT] indicator of the channel whose HPF you
are setting will light.
3. Turn the encoder to select the desired HPF
setting.
The available HPF settings are OFF / 40 Hz / 80 Hz.
CAUTION
Before you turn the power on, make sure that audio
signals are not beinginput to the analoginput connec-
tors. If audio signals are beinginput, excessive input
will be applied to the speakers when the power is
turned on, possibly damagingthe speaker system or
damagingyour hearingby high-volume sound. If there
is a problem with the speakers or the wiring, the pro-
tection circuit will operate immediately when the power
is turned on. Check whether there might be a problem
with the wiring.
NOTE
If a certain period of time elapses without any operation
being performed, the unit will be placed in Attenuation
setting operating mode.
NOTE
• In order to protect the amplifier, the HPF cannot be turned
OFF if high impedance connections are used.
• If you’re using a sub-woofer with high-impedance connec-
tions, we recommend that you change the HPF setting to
40 Hz.
• If you’re using a full-range speaker with high-impedance
connections, the amplifier’s protection circuit may operate
if the HPF is set to other than 80 Hz. We recommend that
you use the 80 Hz setting.
• If a certain period of time elapses without any operation
being performed, the unit will be placed in Attenuation set-
ting operating mode.

Setup
XMV4280/XMV4140 Owner’s Manual 17
Checking the wiring
Here we’ll explain how to change the attenuation settings
and switch muting on/off, which you will need to do when
checking the wiring.
Before you check the wiring, we recommend that you set the
attenuator of all channels to the lowest setting (-99 dB) to
prevent speaker damage.
To check the wiring, you’ll need to be outputting an audio
signal from the mixer or other device that’s connected to the
analog input connectors.
Changing the attenuator setting
Here’s how to change the attenuator setting.
1. While holdingdown the [FUNCTION] but-
ton, turn the encoder to make the display
indicate “ATT.”
2. Press the [SELECT] button of the channel
whose settingyou want to adjust.
The [SELECT] indicator of the selected channel will
light.
3. Turn the encoder to gradually raise the
attenuator settingfrom -99, and verify
that sound is produced from the speaker.
Switching the mute setting on/off
While holdingdown the [MUTE] button,
press the [SELECT] button of the channel
that you want to control.
When mute is on, the [MUTE] indicator will light; when
mute is off, the [MUTE] indicator will be unlit.
Lowering the brightness of the indicators
and the display
If the front panel LED indicators are too bright, you can
lower their brightness.
After turning the power off, set the rear panel device setup
DIP switch 4 (LED DIMMER) to the lower position (ON).
The next time you turn the power on, the unit will start up
with decreased indicator brightness.
Locking the panel
By locking the panel you can disable front panel operations
other than controlling the power.
When this unit is used as part of an installed system, you can
lock down the settings by disabling operations from the front
panel, thus preventing inadvertent changes.
After turning the power off, set the rear panel device setup
DIP switch 5 (PANEL LOCK) to the lower position
(LOCK). The next time you turn the power on, the unit will
start up with the front panel locked.
Even in the locked state, you can temporarily defeat the
panel lock by pressing the [FUNCTION] button and the
[SELECT] A button. However, it will be re-locked when any
of the following conditions occur.
• One minutes elapses without any operation being per-
formed after the panel is temporarily unlocked
• You press the [FUNCTION] button and the [SELECT] A
button
• You turn the power off
The lock status is shown by the front panel [PANEL LOCK]
indicator.
• Locked: lit
• Not locked: unlit
• Temporarily unlocked: blinking
NOTE
If the speakers are remotely located and you are unable to
check the signal output easily, changing the [SIGNAL] indi-
cator setting to “output” will allow you to check whether cur-
rent is flowing to the speakers. For details on switching the
indicator setting, refer to “List of Front Panel Operations”
(page 20).
NOTE
The brightness of the [POWER] indicator will not be
reduced.

XMV4280/XMV4140 Owner’s Manual
18
Using and connecting the [REMOTE] connector
and [FAULT OUTPUT] connector
This chapter explains how to use and connect the [REMOTE] connector and [FAULT OUTPUT] con-
nector located on the rear panel of the XMV.
You can connect switches to the rear panel [REMOTE] connec-
tor, and use them to remotely mute/unmute all channels or
switch the power standby/on status.
From the left, the [REMOTE] connector consists of MUTE
ALL, STANDBY, and GND pins.
The [REMOTE] connector uses a Euroblock plug.
For details on how to connect Euroblock plugs, refer to “Con-
necting the [REMOTE] connector or [FAULT OUTPUT] con-
nector” (page 19).
•Muting/unmutingall channels
•Switchingthe power standby/on status
A lamp or other indicator can be connected to the rear panel
[FAULT OUTPUT] connector to inform an operator when a
problem occurs.
The [FAULT OUTPUT] connector consists of NO (Normally
Open), C (Common), and NC (Normally Closed) pins. The
[FAULT OUTPUT] connector is a relay circuit that operates as
follows.
The [FAULT OUTPUT] connector uses a Euroblock plug. For
details on how to connect Euroblock plugs, refer to “Connecting
the [REMOTE] connector or [FAULT OUTPUT] connector”
(page 19).
Using the [REMOTE] connector (Euro-
block 3-pin)
Turningmute on Turningmute off
NOTE
When mute is on, you can temporarily unmute using the
[MUTE] button on the front panel. When you turn on the
power to the unit again, all channels will be muted.
Switchingthe power to
standby
Turningthe power on
NOTE
If the power is set to standby, turning on the power to the
unit again will place the unit in standby mode.
Using the [FAULT OUTPUT] connector
(Euroblock 3-pin)
Normal state Fault condition Power off
NO Open Closed Closed
NC Closed Open Open
Example: Usingan LED to indicate the
XMV’s normal/fault status
CAUTION
The rated load of the relay contacts is 1A, DC 30 V for a
resistive load.
Do not apply a load that exceeds this rating.
C
NC
NO
C
NC
NO
Normal state
Powered-off / Abnormal state
Lit
Unlit
Unlit
Lit
XMV
XMV

Usingand connectingthe [REMOTE] connector and [FAULT OUTPUT] connector
XMV4280/XMV4140 Owner’s Manual 19
You must use the supplied Euroblock plugs when making con-
nections to the [REMOTE] connector or [FAULT OUTPUT]
connector.
If these have been lost, please contact your Yamaha dealer.
1. Loosen terminal screws.
2. Insert cables.
3. Securely tighten terminal screws.
Pull the cables (not too strongly) to confirm that they are
securely connected.
4. Insert the Euroblock pluginto the [REMOTE]
connector or [FAULT OUTPUT] connector of
the device.
Connecting the [REMOTE] connector
or [FAULT OUTPUT] connector
Cable preparation
• To prepare the cable for attachment to a Euroblock
connector, strip the wire as shown in the illustration
using stranded wire to make connections. With a Euro-
block connection, stranded wires may be prone to
breakage because of metal fatigue due to the weight of
the cable or due to vibration.
• If cables will be frequently connected and discon-
nected, as in the case of a portable installation, we
recommend that you use ferrules with insulation
sleeves. Use a ferrule whose conductor portion has an
external diameter of 1.3 mm or less, and a length of
approximately 5 mm (such as the AI0,5-6WH made by
the Phoenix Contact corporation).
NOTE
A slotted screwdriver with a blade width of about 3 millime-
ters is recommended.
approx.
5 mm
NOTE
Do not tin (plate with solder) the exposed end.
1.3 mm or less approx.
5 mm
Loosen.
Terminal
screw
Slotted screwdriver
Euroblock plug
3 mm or less

XMV4280/XMV4140 Owner’s Manual
20
List of Front Panel Operations
This chapter describes the operations you can perform from the front panel.
The “+” symbol indicates that you should “operate the control listed at right while operating the control
listed at left.” For example, “[SELECT] A + [SELECT] C” means that you are to hold down the
[SELECT] A button and press the [SELECT] C button.
The “” symbol indicates that you should “operate the control listed at left and then operate the control
listed at right.” For example, “[SELECT] X encoder” means that you are to press the [SELECT] but-
ton of the channel you want to control, and then operate the encoder.
Basic Operations
NOTE
If you modify the parameter settings, do not turn the power switch OFF for at least one second. Otherwise, the changes to the settings
may be lost.
To do this... Operation Description
Checking the current operating
mode [FUNCTION]
While you hold down the [FUNCTION] button, the current oper-
ating mode will be shown in the display. The modes are indi-
cated as follows.
Changing the operating mode [FUNCTION] + encoder
Use the encoder to change the operating mode.
When you release the [FUNCTION] button, the operating mode
shown at that time will be selected; the display will show the
parameter value of that operating mode.
Turning mute on/off for channel X [MUTE] + [SELECT] X
When muting turns on, the [MUTE] indicator of the selected
channel will lit.
When muting turns off, the [MUTE] indicator will go unlit.
Temporarily disabling or re-
enabling front panel lock [FUNCTION] + [SELECT] A
When front panel lock is temporarily disabled, the [PANEL
LOCK] indicator will blink.
When front panel lock is enabled, the [PANEL LOCK] indicator
will lit.
Indication Operatingmode
ATT Attenuation setting
POL Polarity setting
HPF Turn the high pass filter on/off and
change the cutoff frequency
SRC Analog/digital input selection
SIG [SIGNAL] indicator display selection
NOTE
If a certain period of time elapses without any operation
being performed after the unit is placed in any operating
mode other than “Attenuation setting,” the operating mode
will be switched back to “Attenuation setting.”
NOTE
Even if front panel lock is temporarily disabled, it will be
relocked when one minute passes without any operation
being performed or when the power is turned off.