MCX-CA15
MCX-CA15
Distributed Audio Amplifier
UB
MCX-CA15
AUDIO IN
STATUS
AUDIO OUT SW OUT
IR/CTRL
VIDEO OUT
DC IN 12V
OWNER'S MANUAL
COMPLIANCE INFORMATION STATEMENT
(DECLARATION OF CONFORMITY PROCEDURE)
Responsible Party:
Address:
Yamaha Electronics Corporation, U.S.A.
6660 Orangethorpe Avenue
Buena Park, CA 90620
Telephone:
Type of Equipment:
Model Name:
714-522-9105
714-670-0108
Fax:
Distributed Audio Amplifier
MCX-CA15
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.
See the “TROUBLESHOOTING” section at the end of this manual if interference to radio reception is
suspected.
FCC INFORMATION (for US customers only)
1 IMPORTANT NOTICE: DO NOT MODIFY
THIS UNIT!
This product, when installed as indicated in the
instructions contained in this manual, meets FCC
requirements. Modifications 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 requirements
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
operation of other electronic devices.
Compliance with FCC regulations 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 coaxial type
cable.
If these corrective measures do not produce
satisfactory results, please contact the local retailer
authorized to distribute this type of product. If you
can not locate the appropriate retailer, please
contact Yamaha Electronics Corporation, U.S.A.
6660 Orangethorpe Avenue, Buena Park, CA
90620.
The above statements apply ONLY to those
products distributed by Yamaha Corporation of
America or its subsidiaries.
i
CAUTION: READ THIS BEFORE OPERATING YOUR UNIT.
1 To assure the finest performance,
please read this manual carefully. Keep
it in a safe place for future reference.
2 Install these units in a well ventilated,
cool, dry, clean place — away from
direct sunlight, heat sources, vibration,
dust, moisture, and/or cold. Allow
ventilation space of at least 10 cm on
the top, bottom, left and right. Also
make sure the rear of these units is not
touching the opposite wall.
3 Locate these units away from other
electrical appliances, motors, or
transformers to avoid humming sounds.
4 Do not expose these units to sudden
temperature changes from cold to hot,
and do not locate these units in an
environment with high humidity (i.e. a
room with a humidifier) to prevent
condensation inside these units, which
may cause an electrical shock, fire,
damage to these units, and/or personal
injury.
5 Avoid installing these units where
foreign objects may fall onto these units
and/or these units may be exposed to
liquid dripping or splashing. On the top
of these units, do NOT place:
– Other components, as they may
cause damage and/or discoloration
on the surface of these units.
– Burning objects (i.e. candles), as they
may cause fire, damage to these
units, and/or personal injury.
– Containers with liquid in them, as
they may fall and liquid may cause
electrical shock to the user and/or
damage to these units.
6 Do not cover these units with a
newspaper, tablecloth, curtain, etc. in
order not to obstruct heat radiation. If
the temperature inside these units rises,
it may cause fire, damage to these units,
and/or personal injury.
7 Do not plug these units into a wall outlet
until all connections are complete.
8 Do not operate these units upside-
down. They may overheat, possibly
causing damage.
9 Do not use force on switches, knobs
and/or cords.
10 When disconnecting the power cord
from the wall outlet, grasp the plug; do
not pull the cord.
11 Do not clean these units with chemical
solvents; this might damage the finish.
Use a clean, dry cloth.
12 Only the voltage specified on these
units must be used. Using these units
with a higher voltage than specified is
dangerous and may cause fire, damage
to these units, and/or personal injury.
YAMAHA will not be held responsible for
any damage resulting from use of these
units with a voltage other than that
specified.
13 To prevent damage by lightning,
disconnect the power cord from the wall
outlet during an electrical storm.
14 Do not attempt to modify or fix these
units. Contact qualified YAMAHA
service personnel when any service is
needed. The cabinet should never be
opened for any reason.
15 When not planning to use these units
for long periods of time (i.e. when going
on vacation), disconnect the AC power
plug from the wall outlet.
16 Be sure to read the
“TROUBLESHOOTING” section in the
MCX-C15 Owner’s Manual or MCX-CA15
Owner’s Manual on common operating
errors before concluding that one or
both of these units are faulty.
17 Before moving these units, press
on the MCX-C15 to place them in the
sleep mode, and disconnect the AC
power plug from the wall outlet.
18 Be sure to use the AC adaptor
(LSE0215C1240) supplied with the
MCX-C15. Using an AC adaptor other
than the one provided may cause fire or
damage to these units.
19 These units are designed for home use
only. Never use these units in a car, etc.
Doing so may cause these units to
malfunction.
ii
These units are not disconnected from the AC
power source as long as they are connected to the
wall outlet, even if the unit itself is turned off.
This state is called the sleep mode. In this state,
these units are designed to consume a very small
quantity of power.
WARNING
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK, DO NOT EXPOSE THESE
UNITS TO RAIN OR MOISTURE.
IMPORTANT
Please record the serial number of these units in
the space below.
MODEL:
Serial No.:
MODEL:
Serial No.:
The serial number is located on the rear of each
unit. Retain this Owner’s Manual in a safe place
for future reference.
SPECIAL INSTRUCTIONS FOR U.K.
MODEL
IMPORTANT
The wires in this mains lead are coloured in
accordance with the following code:
GREEN-and-YELLOW: Earth
BLUE: Neutral
BROWN: Live
As the colours of the wires in the mains lead of
each unit 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 the safety earth symbol , or coloured
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.
For U.K. customers
If the socket outlets in your home are not suitable
for the plug supplied with this appliance, it should
be cut off and an appropriate 3 pin plug fitted. For
details, refer to the instructions above.
Note: The plug severed from the mains lead must
be destroyed, as a plug with a bared flexible cord is
hazardous if engaged in a live socket outlet.
For Canadian Customers
To prevent electric shock, match the wide blade
of the plug to the wide slot and fully insert.
This Class B digital apparatus complies with
Canadian ICES-003.
CAUTION
Danger of explosion if battery is incorrectly
replaced. Replace only with the same or
equivalent type.
iii
CONTENTS
INTRODUCTION
FEATURES .............................................2
SUPPLIED ACCESSORIES..................3
CONTROLS AND FUNCTIONS ..........4
Front panel................................................ 4
Inside front panel...................................... 5
Rear panel................................................. 6
Bottom panel ............................................ 7
USING THE MCX-CA15
OPERATION...........................................8
Operation modes....................................... 8
Input level sensing function.................... 11
RESET button......................................... 11
ADDITIONAL INFORMATION
TROUBLESHOOTING .......................12
SPECIFICATIONS...............................13
INTRODUCTION
USING THE
MCX-CA15
INFORMATION
ADDITIONAL
1
FEATURES
The MusicCAST MCX-CA15 Distributed Audio Amplifier (hereafter, the “MCX-CA15”) is designed to
output 34 W (17 W per channel) of high-quality power paired with a MusicCAST MCX-C15 Distributed
Audio Controller (hereafter, the “client”) to complete the MusicCAST system, or as an amplifier integrated
with an existing audio system. As a companion to your client, the MCX-CA15 is fully controllable from the
client, and functions as a power amplifier and DC power distributor. It provides high-quality power to all
connected speakers, and can display the client’s on-screen display (OSD) on a TV or monitor connected to
the MCX-CA15. As a stand-alone amplifier, the MCX-CA15 offers flexibility with two different operation
modes to choose from.
The MCX-CA15 is designed to bring you the following features:
◆ Operation mode selection switch with three
settings for customized use
◆ Up to 34 W (17 W per channel) high-quality
power output
◆ Modern in-wall design with paintable face plate
to match every interior
◆ In-wall speaker and subwoofer output terminals
About this manual
• y indicates a tip for your operation.
• For details regarding installation and network configuration, refer to the Install Manual provided.
• This manual is printed prior to production. Design and specifications are subject to change in part as a result
of improvements, etc. In case of differences between the manual and the product, the product has priority.
◆ Selectable pre-amp output for use with an
external audio system
◆ On-screen video output for menu display on a
TV or monitor when used with a client
◆ IR flasher output using YAMAHA AV link
technology when used with a client
◆ DC power output to a client
This unit must be installed by a qualified technician as indicated in the Install Manual provided. Do not
attempt to install this unit yourself.
■ We Want You Listening For A Lifetime
YAMAHA and the Electronic Industries Association’s Consumer Electronics Group want you to
get the most out of your equipment by playing it at a safe level. One that lets the sound come
through loud and clear without annoying blaring or distortion – and, most importantly, without
affecting your sensitive hearing. Since hearing damage from loud sounds is often undetectable
until it is too late, YAMAHA and the Electronic Industries Association’s Consumer Electronics
Group recommend you to avoid prolonged exposure from excessive volume levels.
2
SUPPLIED ACCESSORIES
MCX-CA15
After unpacking, check that you received all of the following parts.
INTRODUCTION
Owner’s Manual
(this manual)
MCX-CA15
Distributed Audio Amplifier
MCX-CA15
AUDIO IN
STATUS
UB
AUDIO OUT SW OUT
IR/CTRL
VIDEO OUT
DC IN 12V
OWNER'S MANUAL
Pin/mini plug cable
Install Manual
MCX-C15
Distributed Audio Controller
MCX-CA15
Distributed Audio Amplifier
INSTALL MANUAL
ATTENTION:
These units must be installed by a qualified
technician. Do not attempt to install these
units yourself.
Spacers x 4
UB
3
Front panel
MCX-CA15
CONTROLS AND FUNCTIONS
1
MCX-CA15
AUDIO IN
IR/CTRL
2
3
STAT US
4
1 AUDIO OUT jacks
Connect a receiver or amplifier (audio input source)
to these jacks.
2 AUDIO IN jack
Connect an external stereo source, such as a DVD
player or control amplifier if you want to listen to
audio from that source.
3 IR/CTRL jack
Connect an IR flasher (infrared emitter) to this jack
if you want to control a YAMAHA AV receiver
registered on a client.
When this unit is connected to a client, this jack
functions as an IR output jack.
When this unit is connected to an external
component and the operation mode is set to “C”,
this jack functions as a control input jack.
5
AUDIO OUT SW OUT
VIDEO OUT
6
DC IN 12V
7
4 STATUS indicator
Lights up when this unit is active (receiving a
signal).
Dims when this unit is in sleep mode.
Flashes rapidly when the protection circuitry has
been activated or an abnormality occurs.
Alternates between fully lit and dimmed for 10
seconds when this unit is first connected to a power
source.
5 SW OUT jack
Connect a subwoofer to this jack to enhance bass
frequencies.
6 VIDEO OUT jack
Connect a TV or monitor to this jack if you want to
display the client on-screen menu on the TV/
monitor.
7 DC IN 12V jack
Connect the AC adaptor to this jack to supply power
to this unit or distribute power to a client.
4
Inside front panel
1
AB
MODE
CONTROLS AND FUNCTIONS
INTRODUCTION
C
2
1 MODE switch
Switches between operation modes “A”, “B” and
“C” (see page 10).
2 RESET button
Resets this unit after the protection circuitry has
been activated or the operation mode has been
changed (see page 11).
3 INPUT SENSE
Detects the presence of signals input through the
AUDIO IN jack (see page 11).
RESET
INPUT SENSE
3
5
CONTROLS AND FUNCTIONS
Rear panel
SPEAKER OUT
4Ω MIN.
12
DC IN/OUT
GND +12V
1 SPEAKER OUT terminals
Connect speakers to these jacks using commercially
available speaker cables.
2 DC IN/OUT terminals
When this unit is connected to a client only, connect
the DC power cable to these terminals to supply
power to the client.
When this unit is connected to the I/O box, use these
terminals to receive power from the I/O box.
6
Bottom panel
CONTROLS AND FUNCTIONS
INTRODUCTION
12
AV I N
CONTROL
MODE A, B : OUT
MODE C : IN
1 AV IN jack
Connect a client to this jack using the CAT-5 cable
(straight) supplied with the client to input signals
from the client.
2 CONTROL OUT/IN jack
Connect another MCX-CA15 or an external
component to this jack to control the power of this
unit.
7
OPERATION
Operation modes
The MCX-CA15 features three different operation modes for user flexibility. Before using the MCX-CA15,
you must set the operation mode to either “A”, “B” or “C” depending on your system configuration.
CAUTION
Be sure to set the operation mode before connecting the MCX-CA15 to a live power source.
■ Operation Modes
Mode Usage
A mode Use this mode if you want to use the MCX-CA15 as a companion to a client. In this mode you can
ABC
MODE
also control a YAMAHA AV receiver connected to the MCX-CA15 or I/O box from the client’s
remote control using YAMAHA AV link technology. In this mode, the MCX-CA15 is fully
controllable from the client.
B mode Use this mode if you want to use the MCX-CA15 as an amplifier for a system other than the
ABC
MODE
C mode Use this mode if you want to use the MCX-CA15 as an amplifier for a system other than the
ABC
MODE
*
For details on the input level sensing function, see page 11.
MusicCAST system and you also want to automatically turns on the MCX-CA15 or switches it to
sleep mode using input signals using the input level sensing function
MCX-CA15’s power is controlled by audio signals input from the connected external component.
MusicCAST system and you do not want to use the input level sensing function
the MCX-CA15’s power is controlled by control signals input from the connected external
component.
*
. In this mode, the
*
. In this mode,
CAUTION
In “B” and “C” modes, you cannot adjust the volume level from the MCX-CA15. Signals
input through the AUDIO IN jack are not converted before being output. If loud sounds are
output, your speakers may be damaged. Before listening to components for the first time,
lower the volume on the component to minimum.
Notes
• In “B” mode, if no signal is detected for five minutes or longer, the MCX-CA15 enters sleep mode.
• In “B” and “C” modes, when a component is connected to the AUDIO IN jack, the input default setting is
“AUDIO IN”. However, when no component is connected, the default setting is “AV IN”.
• Before connecting or disconnecting an external component to/from the AUDIO IN jack, be sure to unplug
the MCX-CA15 from a live power supply.
8
■ Mode comparison and operation outline
OPERATION
Mode
A mode
B mode (Not available) Control output Yes
C mode Control input Control input No
IR/CTRL jack on
the front panel
IR output (using
YAMAHA AV link
technology)
CONTROL IN/OUT jack
on the bottom panel
Control output No
Auto standby with
input level sensing
The various functions of each jack are as follows:
IR output
The IR/CTRL jack on the front panel functions as an IR output jack in “A” mode. You can connect an IR
flasher to this jack to control a YAMAHA AV receiver using YAMAHA AV link technology.
Note
This unit only supports IR modulation frequencies of 38 kHz.
Control output
The CONTROL IN/OUT jack on the bottom panel functions as a control output jack in “A” and “B” modes.
In this case, this unit is capable of outputting power within the range 3 to 30 V from this jack. You can
connect another MCX-CA15 to this jack to control the power of that MCX-CA15.
Control input
The IR/CTRL jack on the front panel and the CONTROL IN/OUT jack on the bottom panel function as a
control input jack in “C” mode. In this case, this unit is capable of detecting signals within the range 3 to
30 V from these jacks. You can connect another MCX-CA15 or an external component to these jacks to
control the power of this unit.
USING THE
MCX-CA15
9
OPERATION
■ To switch the operation mode
You can switch between the operation modes on the
MCX-CA15 by sliding the MODE switch located
on the inside front panel to the left and right.
CAUTION
• Always check that the operation mode is
set correctly before performing automatic
or manual configuration on the client.
• Make sure you press RESET after
switching the operation mode.
1 Gently grasp the edges of the front
panel and pull it away from the main
unit.
The MODE switch is now visible in the upper
left corner of the inside front panel.
ABC
MODE
MCX-CA15
AUDIO IN
AUDIO OUT
IR/CTRL
SW OUT
VIDEO OUT
STA
TUS
DC IN 1
2
V
A
B
C
M
O
D
E
RESET
IN
P
U
T
S
E
N
S
E
3 Press RESET using a ballpoint pen or
similar object.
4 Replace the front panel by pressing it
gently onto the main unit until it clicks
into place.
AB
C
M
O
D
E
RESET
MCX-CA15
AUDIO IN
AUDIO OUT
IR/CTRL
SW OUT
VIDEO OUT
S
TATUS
DC IN 12V
IN
P
U
T
S
EN
S
E
2 Slide the MODE switch to
the left or right to make the
desired operation mode
setting.
For details about operation
modes and their uses, see pages
8 and 9.
10
ABC
MODE
OPERATION
Input level sensing function
In “B” mode, the MCX-CA15 automatically
activates (exits sleep mode) when its circuitry senses
a signal input from an external source connected to
the AUDIO IN jack.
You can use INPUT SENSE to change the
detectable signal threshold.
Turn INPUT SENSE to the right to increase
the detectable signal threshold.
Turn INPUT SENSE to the left to decrease
the detectable signal threshold.
INPUT SENSE
Notes
• If no input source is detected for five minutes or
longer, this function automatically switches the
MCX-CA15 to sleep mode.
• In sleep mode, output from the MCX-CA15 is
muted.
• If you turn INPUT SENSE all the way to the left,
the MCX-CA15 always remains in the active
state. If you turn it all the way to the right, the
MCX-CA15 always remains in sleep mode.
• This function is only available when the
MCX-CA15 is set to “B” mode.
RESET button
The RESET button is located on the inside front
panel.
RESET
Press the RESET button to restart the
MCX-CA15 only if:
• The MCX-CA15’s protection circuitry has been
activated and the unit has switched itself off.
• You have changed the operation mode using the
MODE switch.
Note
When the MCX-CA15 is connected to a client and
you want to reset the system, press and hold on
the client for ten seconds.
AB
C
MODE
RESET
INPUT SENSE
USING THE
MCX-CA15
11
TROUBLESHOOTING
Refer to the chart below if the MCX-CA15 does not function properly. If the problem you are experiencing is
not listed below or if the instruction below does not help, disconnect the power cord, and contact the nearest
authorized YAMAHA dealer or service center.
Problem Cause Remedy Refer to
The AV link
technology
function does
not work
correctly.
The client does
not output any
sound.
Using the
MCX-CA15
produces
interference
noise on nearby
radios.
The STATUS
indicator on the
front panel of
the MCX-CA15
flashes rapidly.
The signal is weak (for IR
flasher connections only).
The volume setting of the
client is low.
The speakers are not correctly
connected to the MCX-CA15.
The MCX-CA15 and the radio
are too close to each other.
The cables are not connected
correctly.
You are using low-impedance
speakers.
Position the IR flasher so that it is
in clear view of the external
component’s remote control
receiver.
Increase the volume setting. Quick
Check the connections between
the speakers and MCX-CA15.
Place the MCX-CA15 and the
radio at least one meter apart.
Connect the cables correctly.
When using the MCX-CA15 in
the MusicCAST system, press
on the client for 10 seconds
to reset the system.
When using the MCX-CA15 as
an amplifier for another system,
press RESET on the inside front
panel of the MCX-CA15 to reset
this unit.
Use speakers with an impedance
of at least 4
When using the MCX-CA15 in
the MusicCAST system, press
to reset the system.
When using the MCX-CA15 as
an amplifier for another system,
press RESET on the inside front
panel of the MCX-CA15 to reset
this unit.
Ω .
on the client for 10 seconds
page
—
Manual,
page 9
Install
Manual,
page 11
—
11
11
12
SPECIFICATIONS
AUDIO PERFORMANCE
• Minimum RMS output power
1 kHz, 1% THD................................................................................................................................................ 13 W + 13 W
• Maximum power (EIAJ)
1 kHz, 10% THD......................................................................................................................17 W + 17 W or 18 W (1 ch)
• Frequency response (EIAJ) ..............................................................................................................20 Hz to 20 kHz, ±1.0 dB
• Total harmonic distortion + noise (EIAJ)......................................................................................................................0.008%
• Signal to noise ratio (EIAJ) ............................................................................................................................................. 98 dB
• Dynamic range (EIAJ)..................................................................................................................................................... 98 dB
• Input sensitivity/impedance (1 kHz, 1% THD)
Modes A and B................................................................................................................................................. 220 mV/3 kΩ
Mode C.............................................................................................................................................................780 mV/3 kΩ
• Output level/impedance
AUDIO OUT (1 kHz, 220 mV input from AUDIO IN)................................................................................. 1.0 Vrms/1 kΩ
AUDIO OUT (1 kHz, 0 dB, Volume –20 dB input from the MCX-C15 connected with a 2 m CAT-5 cable (straight))
........................................................................................................................................................................ 1.0 Vrms/1 kΩ
SW OUT (50 Hz, 220 mV input from AUDIO IN) .................................................................................... 1.0 Vrms/2.1 kΩ
GENERAL
• Power supply ................................................................................................................................. AC 100 to 240 V, 50/60 Hz
• Power consumption .......................................................................................................................................................... 40 W
• Operation temperature ....................................................................................................................................... +5°C to +35°C
• Dimensions (W x H x D) ..............................................................................120 x 120 x 105 mm (4-3/4” x 4-3/4” x 4-3/16”)
• Weight (without AC adaptor) .........................................................................................................................0.6 kg (1 lb 5 oz)
*
The above specifications are subject to change without notice.
INFORMATION
ADDITIONAL
13
©
2004 All rights reserved.
YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A.
YAMAHA CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA
YAMAHA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR. 22-34, 25462 RELLINGEN BEI HAMBURG, F.R. OF GERMANY
YAMAHA ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARN E-LA-VALLEE CEDEX02, FRANCE
YAMAHA ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD18 7GQ, ENGLAND
YAMAHA SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, 400 43 VÄSTRA FRÖLUNDA, SWEDEN
YAMAHA MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA
Printed in Malaysia WD28630
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