Yamaha MusicCast R-N2000ASL User manual

Receiver
User Guide
EN

TABLE OF CONTENTS
BEFORE USE 7
Please read first........................................................................................7
About this product and manual.. ..............................................................................................................................................7
Terminology and technical explanations.. ...............................................................................................................................8
Input sources playable with this product......................................................9
Compatible input sources.. .......................................................................................................................................................9
Compatibility with MusicCast..................................................................................................................................................10
Accessories.............................................................................................11
Checking the accessories.........................................................................................................................................................11
NAMES OF PARTS AND THEIR FUNCTIONS 12
Unit.......................................................................................................12
Front panel.. .............................................................................................................................................................................12
Front display.............................................................................................................................................................................15
Rear panel.................................................................................................................................................................................18
Remote control.......................................................................................20
Remote control.........................................................................................................................................................................20
PREPARATION 22
Preparing the remote control....................................................................22
How to insert batteries, and its operating range....................................................................................................................22
Connecting external devices.....................................................................23
Connecting audio devices........................................................................................................................................................23
Connecting via HDMI to an ARC-compatible TV.. ...................................................................................................................24
Connecting to your computer (USB DAC function).. ..............................................................................................................25
Connecting speakers................................................................................27
Connecting speakers................................................................................................................................................................27
Making bi-wiring connections.. ...............................................................................................................................................30
Connecting a subwoofer..........................................................................................................................................................31
Trigger connection...................................................................................................................................................................32
Connecting radio antennas.......................................................................33
Connecting an FM antenna......................................................................................................................................................33
Connecting a DAB/FM antenna................................................................................................................................................34
2
TABLE OF CONTENTS

Preparing a network connection.. ............................................................. 35
To make a network connection...............................................................................................................................................35
Connecting a network cable (wired connection).. .................................................................................................................36
Preparing the wireless antenna (wireless connection)..........................................................................................................37
Turning the product ON............................................................................38
Connecting the power cord.. ...................................................................................................................................................38
Turning the power ON..............................................................................................................................................................39
Configuring MusicCast settings (connecting to a network)............................41
Registering with the MusicCast network.................................................................................................................................41
Automatic adjustment of speaker settings (YPAO).. ..................................... 42
Running YPAO...........................................................................................................................................................................42
Error and warning messages.. .................................................................................................................................................46
Using the app to check YPAO measurements and change settings.. ....................................................................................48
PLAYBACK 50
Basic operations......................................................................................50
Selecting the output speakers.................................................................................................................................................50
Selecting an input source.. ......................................................................................................................................................51
Adjusting the volume.. .............................................................................................................................................................52
Switching the front display......................................................................................................................................................53
Adjusting the sound to your preference......................................................54
Enjoying Pure Direct playback (PURE DIRECT).......................................................................................................................54
Adjusting bass and treble (BASS/TREBLE)..............................................................................................................................55
Adjusting left/right volume balance (BALANCE).....................................................................................................................56
Making it easier to hear bass and treble at low volumes (LOUDNESS).. ...............................................................................57
Listening to TV audio.. ............................................................................. 58
Making settings for listening to TV audio................................................................................................................................58
Listening to the audio of an HDMI-connected TV (ARC).. .......................................................................................................59
Listening to the radio...............................................................................60
Preparing to listen to the radio.. .............................................................................................................................................60
Selecting a radio station.. ........................................................................................................................................................63
Displaying the Radio Data System information......................................................................................................................64
Displaying the DAB information.. ............................................................................................................................................65
Auto-registering FM radio stations (auto preset).. .................................................................................................................66
Registering radio stations manually.. .....................................................................................................................................67
Removing the registration of a radio station..........................................................................................................................68
Playing via a Bluetooth® connection.. ........................................................ 69
Playing the audio of a Bluetooth device on this product (audio reception).. .......................................................................69
Playing this product’s audio through Bluetooth speakers/headphones (audio transmission)...........................................70
3
TABLE OF CONTENTS

Listening to music via AirPlay.. ................................................................. 71
Playing music via AirPlay.. .......................................................................................................................................................71
Listening to internet radio........................................................................72
Selecting an internet radio station..........................................................................................................................................72
Listening to streaming services.................................................................73
Listening to streaming services...............................................................................................................................................73
Playing songs on media servers (PC/NAS)....................................................74
Playing songs on media servers (PC/NAS).. ............................................................................................................................74
Playing audio from your computer (USB DAC)..............................................75
Playing music that is on your computer.. ...............................................................................................................................75
Option menu (settings for each input source)..............................................76
Basic operation of the Option menu.. .....................................................................................................................................76
List of Option menu..................................................................................................................................................................77
Correcting volume difference between input sources...........................................................................................................78
Displaying audio signal information.. .....................................................................................................................................79
Setting the reception mode (stereo/mono) for FM radio.......................................................................................................80
Performing an initial scan for DAB radio reception................................................................................................................81
Checking reception strength of each DAB channel label.. .....................................................................................................82
Setting volume interlock with this product when playing an AirPlay/Bluetooth device.. ...................................................83
Setting auto playback.. ............................................................................................................................................................84
Setting repeat playback...........................................................................................................................................................85
Setting shuffle playback.. ........................................................................................................................................................86
Improving intermittently disrupted sound from digital audio inputs...................................................................................87
USEFUL FUNCTIONS 88
Preset functions......................................................................................88
Registering your favorite content to presets.. ........................................................................................................................88
Recalling content registered to a preset.................................................................................................................................90
Sleep timer function................................................................................92
Configuring the time for the sleep timer.................................................................................................................................92
SETTINGS 93
Menus....................................................................................................93
Menu structure.. .......................................................................................................................................................................93
4
TABLE OF CONTENTS

Setup menu (changing function settings)....................................................94
Basic operation of the Setup menu.........................................................................................................................................94
List of Setup menu items.. .......................................................................................................................................................95
Configuring a network.. ...........................................................................................................................................................96
Configuring Bluetooth.. .........................................................................................................................................................101
Configuring YPAO.. .................................................................................................................................................................102
Configuring your TV................................................................................................................................................................103
Configuring the volume.. .......................................................................................................................................................104
Configuring auto power standby...........................................................................................................................................105
Configuring the front display.................................................................................................................................................106
Advanced Setup menu (changing system settings).. ................................... 107
Basic operation of the Advanced Setup menu.. ...................................................................................................................107
List of Advanced Setup menu items......................................................................................................................................108
Configuring the menu language............................................................................................................................................109
Configuring the Remote ID.. ..................................................................................................................................................110
Changing the FM tuning frequency setting...........................................................................................................................111
Initializing settings.. ...............................................................................................................................................................112
UPDATING 113
Checking the version of firmware.. .......................................................... 113
Checking the version of firmware..........................................................................................................................................113
Updating the firmware...........................................................................114
Updating the firmware...........................................................................................................................................................114
Updating the firmware via your network..............................................................................................................................115
TROUBLESHOOTING 116
If you think there is a problem.................................................................116
If you think there is a problem, the 1st step is checking the following.. .............................................................................116
Power, system, and/or remote control problems.. ..............................................................................................................117
Problems with the audio........................................................................................................................................................119
Problems with TV (HDMI) connections..................................................................................................................................121
Problems with FM radio.. .......................................................................................................................................................122
Problems with DAB radio.......................................................................................................................................................123
Problems with USB DAC.........................................................................................................................................................124
Network problems.. ...............................................................................................................................................................126
Problems with Bluetooth.......................................................................................................................................................129
Errors shown on the front display.. .......................................................................................................................................130
5
TABLE OF CONTENTS

APPENDIX 131
Product care.........................................................................................131
Taking care of this product....................................................................................................................................................131
Making wireless network connections......................................................132
Selecting the wireless method of connecting to the network.. ...........................................................................................132
Using the WPS button to make a wireless connection.........................................................................................................133
Making a wireless connection with your iPhone (WAC).. .....................................................................................................134
Making a wireless connection manually.. .............................................................................................................................135
Supported devices and formats...............................................................136
Supported Bluetooth devices................................................................................................................................................136
Supported file formats on this product (network).. .............................................................................................................137
Playable formats using USB DAC...........................................................................................................................................138
Trademarks..........................................................................................139
Trademarks.. ..........................................................................................................................................................................139
Specifications.. ..................................................................................... 141
Specifications.. .......................................................................................................................................................................141
Default values.......................................................................................147
List of default values of the Option menu.............................................................................................................................147
List of default values of the Setup menu.. ............................................................................................................................148
List of default values of the Advanced Setup menu.. ...........................................................................................................149
6
TABLE OF CONTENTS

BEFORE USE
Please read first
About this product and manual
Thank you very much for purchasing this Yamaha product. This product is a network-compatible Receiver (2
channel stereo amplifier) which lets you play music content from the radio or a network in your home as well
as analog and digital audio inputs. With the YPAO function which optimizes the sound field automatically,
you can enjoy the sound that best matches your room.
This manual (guide) is organized as follows. Please be sure to read each of the guides that came with the
product and keep them handy for easy reference.
Safety Guide (Included with the Product)
Lists important safety precautions that should be read prior to use.
Quick Guide (Included with the Product)
This guide explains things from basic connections up through playing Internet radio.
User Guide (This Guide)
This provides explanations of all functions, such as information that is not addressed in the Quick Guide.
(In the User Guide, iPhone, iPad, and iPod touch are referred to collectively as “iPhone”. Unless indicated
within an explanation, references to “iPhone” mean iPhone, iPad, and iPod touch.
(Symbols used in the User Guide
(CAUTION is used with information about potential injuries.
(NOTICE is used with information for preventing product failure, damage or malfunction, and/or loss of
data.
(NOTE is used with supplementary information that is helpful to know.
([Search tag] are keywords for searching.
You can download the latest manuals from the following website.
https://download.yamaha.com/
7
BEFORE USE > Please read first

Terminology and technical explanations
Following are explanations of terminology used in this guide.
ARC
This is an abbreviation of Audio Return Channel. The audio from a TV can be played on an audio/video device
simply by connecting an HDMI cable between an ARC compatible HDMI IN port on the TV and an ARC
compatible HDMI OUT port on the audio/video device.
HDMI
This is a digital interface that conforms to the HDMI standard (High-Definition Multimedia Interface
Specification), which is a global industry standard. It allows digital audio/video signals to be transmitted
over a single cable, without degradation. It is also compatible with copyright protection technologies (HDCP:
High-bandwidth Digital Content Protection system). For further details, please visit https://www.hdmi.org.
USB DAC
The USB DAC converts digital audio signals, sent via a USB cable connected to a computer, into an analog
audio signal, which allows it to be played. This makes it possible for computer applications to play high-
quality audio.
YPAO (Yamaha Parametric room Acoustic Optimizer)
This is a proprietary Yamaha technology that automatically optimizes for room acoustics. A special YPAO
microphone is used to detect speaker connections and measure the distance from them to the listening
position. It measures the acoustic characteristics of the space and automatically adjusts parameters such as
volume balance and frequency characteristics.
Bi-wiring Connections
When connecting an amplifier to speakers, this connection method uses separate wires for the low-
frequency speaker unit (woofer) and the mid-high frequency speaker unit (tweeter). This method of
connection is possible if the speakers are bi-wiring compatible (if they have terminals for both low-
frequencies and mid/high frequencies).
Loudness
This function makes it easier to hear bass and treble even at low volumes. It allows the listener to enjoy
natural sound even at low volumes by compensating for the human auditory characteristic that makes it
difficult to hear bass and treble at low volumes.
Please refer to the following website for other terms and technical explanations. It explains terms and
technologies related to Yamaha AV products in general, not just for this product.
https://manual.yamaha.com/av/cm/glossary/
8
BEFORE USE > Please read first

Input sources playable with this product
Compatible input sources
As illustrated below, this product supports playing a variety of input sources.
PHONES
YPAOMIC
SPEAKERS
METER INPUT BASS TREBLE BALANCE LOUDNESS
VOLUME
FLAT
-30dB
PUREDIRECT
PRESET
RETURN
CONNECT
PUSH - ENTER
SELECT
LEFT
-50 -40 -30 -20 -10 -0 +6
0.01POWER
OFF PEAK VU
DIMMER
dB
0.1 1 10100 W/8
RIGHT
-50 -40 -30 -20 -10 -0 +6
0.01POWER
dB
0.1 1 10100 W/8
L R
Built-in Radio
Input: AirPlay/Bluetooth/Various Streaming Services
Audio from Smartphone/Tablet
Computer
USB
CD Player, etc. Turntable
Computer
NAS
Streaming Service/Internet Radio
Audio from Audio System Audio from Networked Device (Content)
Wi-Fi/LAN
Input: Net Radio/Server/MC LINK/
Various Streaming Services
MusicCast Compatible Devices
Wi-Fi/Bluetooth
Smartphone/Tablet
Audio from Radio
Input: Tuner
Input: USB DAC
Audio from Computer
HDMI
(ARC)
ARC Compatible TV
Audio from TV
Input: TV
Input: CD/PHONO/LINE/OPTICAL/COAXIAL
Media Server
Wireless LAN Router
NOTE
This product cannot be connected to devices like BD/DVD players via HDMI. To play audio from these devices, connect them with one
of the following methods: optical digital (PCM), coaxial digital (PCM), or analog stereo.
Related links (for connection)
(“Connecting external devices”(p.23)
(“Connecting radio antennas”(p.33)
(“To make a network connection”(p.35)
Related links (for playback)
(“Selecting an input source”(p.51)
(“Listening to TV audio”(p.58)
(“Listening to the radio”(p.60)
(“Playing via a Bluetooth® connection”(p.69)
(“Listening to music via AirPlay”(p.71)
(“Listening to internet radio”(p.72)
(“Listening to streaming services”(p.73)
(“Playing songs on media servers (PC/NAS)”(p.74)
(“Playing audio from your computer (USB DAC)”(p.75)
9
BEFORE USE > Input sources playable with this product

Compatibility with MusicCast
This product is compatible with MusicCast. This makes it possible to share music with MusicCast-compatible
devices located in multiple rooms. Its dedicated app, “MusicCast Controller”, is easy to use and allows users
to enjoy music from smartphones, media servers (PC/NAS), Internet radio and streaming services from
anywhere in the home.
For details on MusicCast and compatible devices, please visit the Yamaha website. For more information
about the app, search “MusicCast Controller” in the App Store or Google Play.
10
BEFORE USE > Input sources playable with this product

Accessories
Checking the accessories
This product comes with the following accessories. Check and make sure that you have all of the included
accessories.
£ Power cord
£ YPAO microphone
£ DAB/FM antenna (Models for U.K., Europe, Russia and Australia)
£ FM antenna (Models for other areas)
£ Remote control
£ Batteries (AAA, R03, UM-4) (×2)
£ Safety Guide
£ Quick Guide
11
BEFORE USE > Accessories

NAMES OF PARTS AND THEIR FUNCTIONS
Unit
Front panel
The following are the names of parts on the front of the unit and an explanation of their functions.
PHONES
YPAO MIC
SPEAKERS
METER INPUT BASS TREBLE BALANCE LOUDNESS
VOLUME
FLAT
-30dB
PURE DIRECT
PRESET
RETURN
CONNECT
PUSH
- ENTER
SELECT
LEFT
-50 -40 -30 -20 -10 -0 +6
0.01POWER
OFF PEAK VU
DIMMER
dB
0.1 1 10 100 W/8
RIGHT
-50 -40 -30 -20 -10 -0 +6
0.01POWER
dB
0.1 1 10 100 W/8
L R
fed r
gio q s tpjk l m n
c
ab
h
az (Power) Switch/Indicator
Turns this product ON/OFF (p.39).
When the switch is up:
The power is ON or in Standby. Pressing the zAMP key on the remote control switches the power between ON and
Standby. This product also goes into Standby in the following situations.
(When the Auto Power Standby function is activated (p.105)
When the switch is down:
The power is OFF. This product cannot be operated with the remote control. This product cannot also be linked with
a Bluetooth device, a network device, or MusicCast Controller App.
The indicator lights up as follows according to the state of power.
Power ON: Indicator lights up.
Power in Standby: Indicator is faintly lit.
Power OFF: Indicator is off.
NOTE
When the indicator is flashing, it means the protective circuit has been activated and the power will not turn ON, in order to
protect the product. Please contact an authorized Yamaha service center to have it repaired.
bLEFT/RIGHT Meters
These indicate the audio output levels for the LEFT & RIGHT channels.
12
NAMES OF PARTS AND THEIR FUNCTIONS > Unit

cVOLUME
Adjusts the volume.
dPHONES jack
For plugging in headphones (compatible with standard stereo phone plugs).
NOTE
Audio cannot be output to speakers connected to this product when headphones are plugged in. Also, output from the PRE
OUT jack turns OFF.
eYPAO MIC jack
For connecting the included YPAO microphone (p.42).
fSPEAKERS
Switches the speakers connected to the SPEAKERS L/R CH A and B jacks on the rear panel (p.50).
gMETER
Switches the meter functions as follows.
OFF
Meter function and lighting turn OFF.
PEAK
Functions as a peak level meter. Displays the momentary peak level of audio output.
VU
Functions as a VU (Volume Unit) level meter. Displays the effective audio output, indicating a value close to how
humans sense sound.
DIMMER
Selecting DIMMER changes the brightness of the meters. When on the desired brightness, if you switch to another
setting item, it fixes the brightness at that point.
hRemote control signal receiver
Receives the signal (infrared) from the remote control (p.22).
iINPUT
Selects the input source (p.51).
jBASS
Adjusts the volume of the low-frequency range (p.55).
kTREBLE
Adjusts the volume of the high-frequency range (p.55).
lBALANCE
Adjusts the left/right balance of the volume (p.56).
mLOUDNESS
Adjusts to make it easier to hear bass and treble even at low volumes (p.57). If the YPAO Volume function (p.102) is
enabled, LOUDNESS adjustment cannot be used.
13
NAMES OF PARTS AND THEIR FUNCTIONS > Unit

nFront Display
Displays various information and menus (p.15).
oSELECT (PUSH-ENTER)
Used for things like operating the menus on the front display. Turn this to select an item, and press it to confirm the
selection.
pPURE DIRECT/Indicator
Switches the Pure Direct function ON/OFF (p.54). When this is ON, the indicator lights up, and the front display turns
off.
qRETURN/CONNECT
Used for things like operating the menus on the front display.
Also used when registering this product on the MusicCast Network (p.41).
rPRESET
Used for recalling registered (preset) radio stations (p.63) and registered songs/Internet radio stations (p.90).
sWireless LAN indicator
Lights up when this product is connected to a wireless network (p.132).
tBluetooth indicator
Lights up when a Bluetooth device is connected (p.69).
Related links
“Taking care of this product”(p.131)
14
NAMES OF PARTS AND THEIR FUNCTIONS > Unit

Front display
The following is an explanation of what is shown on the front display.
nBasic indication
This indication is shown during playback. What is shown differs depending on the current input source. The
following is an example of the indication during playback of a media server.
a b
c
aPlay status icon
Shown according to the playback status of the song/station (radio station).
Repeat All/1 Song ( / )
Shown when the input is “Server” and it is set to repeat playback (p.85).
Play/Pause ( / )
Shown when the input is “Server”, “AirPlay”, or “Bluetooth” and it is playing or paused.
Play icon is also shown when the input is “Net Radio” and it is playing.
Shuffle ( )
Shown when the input is “Server” and it is set to shuffle playback (p.86). Please note that it may not be shown when
playing music on a smartphone or tablet, since it depends on the status of the device.
b-∞ (When at minimum volume) /MUTE
When the volume is at the minimum, “-∞” is shown flashing. When muted, “MUTE” is shown flashing.
15
NAMES OF PARTS AND THEIR FUNCTIONS > Unit

cInformation area
The following information is shown depending on the selected input.
When selecting CD, PHONO, LINE1, LINE2, OPTICAL1, OPTICAL2, COAXIAL, TV or a music
streaming service
The input name is displayed.
When selecting USB DAC
The audio format and sampling frequency of the playback signal is displayed.
When selecting Server or Net Radio
The information of the current song or station is displayed. To switch the displayed item, press the DISPLAY key on
the remote control.
When selecting AirPlay or Bluetooth
The information of the current song or the input name is displayed. To switch the displayed item, press the DISPLAY
key on the remote control.
When selecting TUNER
The frequency is displayed. The information of Radio Data System (models for U.K., Europe and Russia) or DAB
(models for U.K., Europe, Russia and Australia) is also displayed. To switch the displayed item, press the DISPLAY key
on the remote control.
NOTE
Some text characters may not be available, and “_” is displayed.
nBrowse indication
This indication is shown only when the input source is “Server” or “Net Radio” and you are selecting the
desired song or station.
a
b
ca
aOperation direction indicator
Available browse direction(s) are shown.
bFile information icon
The type of content currently being shown is indicated by this icon.
When Server is selected
Indicates a music file.
Music files in formats not supported by this product may also be shown (p.137).
Indicates a folder.
Indicates a file that cannot be played.
When Net Radio is selected
Indicates a folder.
Indicates a radio station that can be selected.
16
NAMES OF PARTS AND THEIR FUNCTIONS > Unit

cContent information area
Information such as file names and station names are shown.
NOTE
Some text characters may not be available, and “_” is displayed.
nWarming up indication
This indication is shown immediately after this product is turned ON. Icons are shown to indicate the
temperature condition of the amp. Use this as an estimate of the time until the sound quality will stabilize.
a
aTemperature condition icons
Currently warming up. Warmed up.
NOTE
(The brightness of the display is dimmed to protect the display unit when the product is not operated for a certain amount of time.
The display returns to its normal brightness when the remote control or front panel is operated.
(When PURE DIRECT is ON, the front display turns OFF. After turning OFF, the display comes back ON when the remote control or
front panel is operated.
(The basic indication turns off if no operations are performed for a certain amount of time. The time until the display turns off can
be changed on the Setup menu.
(The maximum number of text characters for displaying content information (names of stations/songs, etc.) on the basic indication
or browse indication varies depending on the selected input and the type of characters.
Related links
“Configuring the front display”(p.106)
17
NAMES OF PARTS AND THEIR FUNCTIONS > Unit

Rear panel
The following are the names of parts on the rear of the unit and an explanation of their functions.
ANALOG IN
LINE 1
OPTICAL COAXIAL
USB SERVICE
AC IN
LINE 2
GND
2
NETWORK TV [ARC]
12V 0.1A
1
L
DIGITAL IN
TRIGGER
OUT
R
CD
LR
PRE OUT
LR
SUBWOOFER
OUT
SPEAKERS R CH
A
B
SPEAKERS L CH
A
B
ANTENNA
FM
75
PHONO
LR
c ed f ih
g
m n po
a b
kj l
aSPEAKERS L/R CH jacks
For connecting to speakers (p.27).
bANTENNA jack
For connecting to a radio antenna (p.33).
cOPTICAL 1-2 IN jacks
For connecting to external devices with an optical digital output (p.23).
dCOAXIAL IN jack
For connecting to external devices with a coaxial digital output (p.23).
eUSB port
For connecting to computers (p.25). Compatible with USB type B connectors.
fNETWORK jack
For connecting a network cable when connecting this product to a wired network (p.36).
gWireless antenna
For connecting this product to a wireless network (Wi-Fi) (p.37). It is also used for Bluetooth connections (p.69).
hTV [ARC] port
For connecting to the HDMI (ARC) IN port of a TV using an HDMI cable (p.24). Be sure to connect to an ARC-
compatible HDMI input jack.
NOTE
This port is for connecting to the HDMI IN port of a TV. Do not connect it to the HDMI OUT port of a BD/DVD player, etc.
18
NAMES OF PARTS AND THEIR FUNCTIONS > Unit

iAC IN jack
For connecting the included power cord (p.38).
jCD IN jacks
For connecting to the analog audio OUT of devices like CD players (p.23).
kPHONO IN jacks
GND jack
For connecting to a turntable (record player) (p.23).
lLINE 1-2 IN jacks
For connecting to external devices with analog audio OUT (p.23).
mPRE OUT jacks
Outputs the same audio signal that is output to the SPEAKERS L/R CH jacks (p.23).
nTRIGGER OUT jack
For connecting to external devices that support the trigger function (p.32).
oSUBWOOFER OUT jack
For connecting to a subwoofer with a built-in amplifier (p.31).
pSERVICE ports
These are service ports that are used when performing repairs, etc. Do not plug anything into them.
19
NAMES OF PARTS AND THEIR FUNCTIONS > Unit

Remote control
Remote control
The following are the names of the parts of the remote control and explanations of their functions.
VOLUME
/
MUTE
AMP
PHONO LINE 1 LINE 2
TV CD
USB DAC
OPT 1 OPT 2 COAX
TUNER BLUETOOTH NET
DISPLAY
SETUP
NOW PLAYING RETURN
OPTION
MEMORY PRESET
1 2
ENTER
3
SLEEP SP A/B
c
b
d
e
f
g
a
h
j
l
k
m
n
i
aRemote control signal transmitter
Sends the remote control signal (infrared).
20
NAMES OF PARTS AND THEIR FUNCTIONS > Remote control