®
C 426
FM/AM Tuner
Owner’s Manual
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IMPORTANT SAFETY INSTRUCTIONS
23.Battery Disposal - When disposing of used batteries, please comply
with governmental regulations or environmental public instruction’s
rules that apply in your country or area.
24.Safety Check - Upon completion of any service or repairs to this
product, ask the service technician to perform safety checks to
determine that the product is in proper operating condition.
25.Wall or Ceiling Mounting - The product should be mounted to a wall
or ceiling only as recommended by the manufacturer.
INFORMATION ABOUT COLLECTION AND DISPOSAL OF
WASTE BATTERIES (DIRECTIVE 2006/66/EC OF THE EUROPEAN
PARLIAMENT AND THE COUNCIL OF EUROPEAN UNION) (FOR
EUROPEAN CUSTOMERS ONLY)
Batteries bearing any of these symbols indicate
that they should be treated as“separate collection”
and not as municipal waste. It is encouraged that
necessary measures are implemented to maximize
the separate collection of waste batteries and
to minimize the disposal of batteries as mixed
municipal waste.
WARNING
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 persons
End-users are exhorted not to dispose waste
batteries as unsorted municipal waste. In order
to achieve a high level of recycling waste batteries, discard waste batteries
separately and properly through an accessible collection point in your
vicinity. For more information about collection and recycling of waste
batteries, please contact your local municipality, your waste disposal service
or the point of sale where you purchased the items.
The exclamation point within an equilateral triangle is intended
to alert the user to the presence of important operating
and maintenance (servicing) instructions in the literature
accompanying the appliance.
By ensuring compliance and conformance to proper disposal of waste
batteries, potential hazardous effects on human health is prevented and
the negative impact of batteries and waste batteries on the environment
is minimized, thus contributing to the protection, preservation and quality
improvement of the environment.
RECORD YOUR MODEL NUMBER (NOW, WHILE YOU CAN SEE IT)
The model and serial number of your new C 426 are located on the back of
the cabinet. For your future convenience, we suggest that you record these
numbers here:
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE AND
OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, SHOULD NOT BE
PLACED ON THIS APPARATUS.
Model number : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial number : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THE EQUIPMENT MUST BE CONNECTED TO AN EARTHED MAINS SOCKET-
OUTLET.
This product is manufactured to comply with the radio
interference requirements of EEC DIRECTIVE 2004/108/EC.
NOTES ON ENVIRONMENTAL PROTECTION
At the end of its useful life, this product must not be disposed
of with regular household waste but must be returned to a
collection point for the recycling of electrical and electronic
equipment. The symbol on the product, user’s manual and
packaging point this out.
The materials can be reused in accordance with their markings. Through
re-use, recycling of raw materials, or other forms of recycling of old
products, you are making an important contribution to the protection of
our environment.
Your local administrative office can advise you of the responsible waste
disposal point.
NAD is a trademark of NAD Electronics International, a division of Lenbrook Industries Limited
Copyright 2010, NAD Electronics International, a division of Lenbrook Industries Limited
3
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INTRODUCTION
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS 2
THANK YOU FOR CHOOSING NAD.
The C 426 Tuner is a technologically advanced and highly capable product
— yet we have invested great effort in making it simple and easy to use.
We have been careful to ensure that the C 426 is as musically transparent
and spatially accurate as possible, incorporating much of what we’ve
learned from a quarter century’s experience designing audio, video and
home-theater components. As with all our products, NAD’s“Music First”
design philosophy guided the C 426’s design, such that it can confidently
promise you both state-of-the-art and audiophile-quality music listening
for years to come.
INTRODUCTION
GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
WHAT’S IN THE BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
CHOOSING A LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
QUICK START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
IDENTIFICATION OF CONTROLS
FRONT PANEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
REAR PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
TNR 1 REMOTE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SLEEP MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
DIMMER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
We encourage you to take a few minutes now to read right through this
manual. Investing a little time here at the outset might save you a good
deal of time later, and is by far the best way to ensure that you make the
most of your investment in the C 426, and get the most from this powerful
and flexible audio component.
OPERATION
LISTENING TO AM/FM RADIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
ABOUT ANTENNAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SELECTING A TUNER BAND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TUNING STATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
STORING PRESETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ABOUT USER NAMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ABOUT RDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
One more thing: We urge you to register your C 426 ownership on the NAD
Worldwide Web site:
REFERENCE
For warranty information contact your local distributor.
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4
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INTRODUCTION
GETTING STARTED
WHAT’S IN THE BOX
Packed with your C 426 you will find
QUICK START
In case you simply cannot wait to experience the performance of your
new C 426, we provide the following“Quick Start”instructions to get you
underway.
·
·
·
·
·
·
An AM loop antenna.
A FM ribbon-wire antenna with balun.
A detachable AC power cord.
An audio cable connector (RCA-to-RCA lead).
The TNR 1 remote control with 2 (two) AAA batteries.
This owner’s manual version in CD-ROM.
Please make all the connections to your C 426 with the unit unplugged. It is
also advisable to power down or unplug all associated components while
making or breaking any signal or AC power connections.
1
Use the RCA-to-RCA lead to connect the left and right output of the
C 426 to the tuner input of your amplifier.
SAVE THE PACKAGING
Please save the box and all of the packaging in which your C 426 arrived.
Should you move or otherwise need to transport your C 426, this is by far
the safest container in which to do so. We’ve seen too many otherwise
perfect components damaged in transit for lack of a proper shipping
carton, so please: Save that box!
2
3
Connect AM and FM antenna.
Connect the supplied AC cord to the C 426 AC mains input and then
plug into an AC outlet. The Standby LED indicator embedded around
the bezel of the STANDBY button will illuminate amber.
Plug the AC mains plug also of your amplifier into the AC outlet. Power
up your amplifier and set it to the tuner input where the C 426 is
connected.
Press the front panel STANDBY button to turn ON the C 426. The
Standby LED indicator will turn from amber to blue and illuminate the
VFD.
Toggle front panel’s [FM/AM] button to select AM or FM band.
Toggle front panel’s [PRESET/TUNE] button to switch between“Preset”
and“Tune”mode. Select TUNE mode (“TUNE”scrolls through the VFD).
Rotate the [PRESET/TUNE] control knob to select desired station.
4
5
CHOOSING A LOCATION
Choose a location that is well ventilated (with at least several inches to both
sides and behind), and that will provide a clear line of sight, within 23 feet/7
meters, between the C 426’s front panel and your primary listening/viewing
position—this will ensure reliable infrared remote control communications.
Avoid placing the unit in direct sunlight or near sources of heat and damp.
It is perfectly possible to stack the C 426 on top of other components.
6
7
8
5
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IDENTIFICATION OF CONTROLS
FRONT PANEL
1
2
3
4
5
6
7
8
9
10
11
1
2
STANDBY LED: This indicator will light up amber when the C 426
is in standby state. When the C 426 is at ON state, this indicator will
illuminate blue. This indicator will extinguish itself when the power
cable is unplugged from the AC supply.
7
MEMORY: Press this button to store tuned AM or FM stations to the
C 426’s 40 preset-memory locations. One can store a mix of any AM or
FM stations to the 40 available presets.
In combination with [DISPLAY] button, [MEMORY] button is also used in
deleting stored presets. Refer also to the item about DELETE A PRESET at
STANDBY BUTTON: Press this button to turn ON the C 426. The
Standby LED indicator will turn from amber to blue and illuminate the
VFD. Pressing the STANDBY button again turns the unit back to standby
mode.
8
9
PRESET/TUNE: Toggle [PRESET/TUNE] button to switch between
“Preset”and“Tune”mode. Select TUNE mode (“TUNE”scrolls through the
VFD) or PRESET mode (“PRESET”scrolls through the VFD).
3
4
FM/AM: Toggle [FM/AM] button to select AM or FM band.
FM MUTE/MODE: The front panel [FM MUTE/MODE] button is a dual-
purpose control. In the normal position, “FM ST”and“FM MUTE”icons on
the VFD are lit; only the stations with a strong signal can be listened to,
and the noise between stations is muted.
REMOTE SENSOR: Point the TNR 1 remote control at the remote
sensor and press the buttons. Do not expose the remote sensor of the
C 426 to a strong light source such as direct sunlight or illumination.
If you do so, you may not be able to operate C 426 with the remote
control.
Pressing the [FM MUTE/MODE] button again (“FM ST”and“FM MUTE”
icons on the VFD are extinguished) allows distant and potentially noisy
stations to be received. Noise is reduced if the FM station signal level
is less than the FM Stereo threshold (since mono FM is inherently less
noise prone) though at the sacrifice of the stereo effect.
Distance: About 23 ft (7 m) from the front of the remote sensor
Angle: About 30° in each direction of the front of the remote sensor
10 VACUUM FLUORESCENT DISPLAY (VFD): Provide visual information
on the settings, conditions, status and other information relevant to the
currently tuned station.
The“FM MUTE”status can be stored for individual presets.
5
6
BLEND: The NAD BLEND feature will allow you to reduce the amount of
noise and hiss but still retain some level of stereo separation, instead of
mono. The [BLEND] button toggles between engaging and disengaging
the BLEND feature. When engaged, “BLEND”is illuminated in the VFD;
“BLEND”is extinguished when not engaged.
The“BLEND”status can be stored for individual presets.
DISPLAY: Use this multifunction button to toggle between RDS PS,
RDS RT and station frequency in FM tuner mode. Refer also to the item
In combination with [MEMORY] button, [DISPLAY] button is also used in
deleting stored presets. Refer also to the item about DELETE A PRESET at
6
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IDENTIFICATION OF CONTROLS
FRONT PANEL
11 PRESET/TUNE CONTROL KNOB: The function of this control knob
depends upon the selected tuning mode via the PRESET/TUNE button.
Toggle [PRESET/TUNE] button to switch between“Preset”and“Tune”
mode.
a. Preset mode: Rotate the PRESET/TUNE control to the left to scroll
to a lower Preset number; rotate the PRESET/TUNE control to the
right to scroll to a higher Preset number. This is a“wrap-around”
function – upon reaching the last stored Preset number, preset
search will continue on with the first stored Preset number and vice-
versa. Unused preset numbers are skipped over.
b. Tune mode: Rotate the PRESET/TUNE control in either direction
for more than 1 second to engage automatic tuning. The tuner will
stop at the next sufficiently strong signal it encounters. Note that
this function“wraps”– that is, it will continue to search from one end
of the AM or FM band to the other until it stops at a strong signal.
Rotate the PRESET/TUNE control again for more than 1 second to
start searching again.
By briefly rotating the PRESET/TUNE control in either direction, manual
tuning is engaged for precise tuning to a specific frequency. With each
brief rotation, the tuner will take 0.05 MHz steps at FM band and 10
kHz (120V version) or 9 kHz (230V version) at AM band. When tuned
accurately to a station, “TUNED”will be illuminated in the VFD. The
antenna bars displayed below the ANTENNA icon in the VFD reflects the
signal strength of the tuned station.
Automatic tuning is available on both AM and FM band.
7
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IDENTIFICATION OF CONTROLS
REAR PANEL
1
2
3
4
5
6
7
ATTENTION!
Please make sure that the C 426 is powered off or unplugged before making any connections. It is also advisable to power down or unplug all associated
components while making or breaking any signal or AC power connections.
1
2
FM ANTENNA TERMINAL: Connect the supplied wire“dipole”FM
antenna to the FM antenna terminal using the supplied“balun”adapter.
It will usually work best when mounted on a vertical surface such as a
wall, with arms fully outstretched forming a horizontal“T”perpendicular
to the origin point of the signal.
7
AC MAINS INPUT: The C 426 comes supplied with a separate AC Mains
cable. Before connecting the cable to a live wall socket, ensure that it
is firmly connected to the C 426’s AC Mains input socket first. Connect
only to the prescribed AC outlet, i.e., 120V 60 Hz (for 120V version
models of C 426 only) or 230V 50 Hz (for 230V version models of C 426
only). Always disconnect the AC Mains cable plug from the live wall
socket first, before disconnecting the cable from the C 426’s Mains input
socket.
AM ANTENNA TERMINAL: Connect the supplied AM loop antenna to
these terminals. If an external AM antenna is used, make connections
to the AM and GND terminals in accordance with the instructions
supplied with the antenna. Refer also to the item about ASSEMBLING
If you intend not to use the C 426 for long periods of time, disconnect
the AC mains cable plug from the live AC wall socket.
WARNING
If the male plug of the mono cable (with or without +12V DC) is
3
4
OUTPUT (L, R): Connect to the corresponding analog audio input of
an amplifier, receiver or stereo system.
connected to C 426’s +12V TRIGGER IN, the Standby button in the front
panel as well as the corresponding ON/OFF function keys in the remote
control will be disabled. Unplug the mono cable to maintain normal
power ON/OFF function procedures.
RS-232: Connect this interface using RS-232 serial cable (not supplied)
to any Windows® compatible PC to allow remote control of the C 426
via compatible external controllers. NAD is a certified partner of AMX
and Crestron and fully supports these external devices. Check out the
NAD website for information about AMX and Crestron compatibility
with NAD. See your NAD audio specialist for more information.
5
6
IR IN: This input is connected to the output of an IR (infrared) repeater
(Xantech or similar) or the IR output of another component to allow
control of the C 426 from a remote location. Most NAD products with IR
OUT are fully compatible with the C 426.
+12V TRIGGER IN: This input allows the C 426 to be switched remotely
to standby mode and ON by ancillary equipment, such as an amplifier,
preamp, AV processor, etc. The controlling device must be equipped
with a 12V trigger output to use this feature. Connect this +12V trigger
input to the remote component’s corresponding +12V DC output jack
using a mono cable with 3.5mm male plug.
8
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IDENTIFICATION OF CONTROLS
TNR 1 REMOTE CONTROL
1
2
3
4
5
6
7
8
9
ON: Power up C 426 from standby mode.
OFF: Switch C 426 to standby mode.
1
3
2
0-9 number buttons: Direct-entry of frequency channel or preset number.
DISP: Show RDS PS, RDS PT, Preset name or station frequency as applicable.
SLEEP: Set sleep mode timer.
DISP
5
8
4
PRESET: Step up or down between stored radio presets.
TUNE: Tune forward or backwards.
6
7
BLEND
9
11
FM/AM: Select AM or FM band.
10
BLEND: Activate or deactivate BLEND feature.
10 FM MUTE: Activate or deactivate FM MUTE FM STEREO mode.
11 DIMMER: Reduce, turn off or restore VFD brightness.
SLEEP MODE
The Sleep Mode timer will switch the C 426 to standby mode automatically after a preset number of
minutes. Toggle TNR 1’s [SLEEP] key to select through the following Sleep mode timer settings – SLEEP
30, SLEEP 60, SLEEP 90 and OFF. Stop at the desired Sleep mode timer setting. A corresponding“SLEEP”
icon will be illuminated in the VFD.
While at SLEEP time mode, pressing the TNR 1’s [SLEEP] button once will display the remaining minutes
(i.e. “SLEEP _ _”;“_ _”is the number of minutes remaining) before the C 426 goes to standby mode.
To cancel the sleep mode, continue pressing the TNR 1’s [SLEEP] button until“OFF”displays on the VFD.
Switching the C 426 to standby from either the TNR 1’s [OFF] button or the front panel Standby button
will also cancel the sleep mode.
DIMMER
The VFD brightness can be adjusted in three ways. Toggle the [DIMMER] button to reduce, turn off or
restore VFD brightness.
9
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OPERATION
LISTENING TO AM/FM RADIO
The C 426 offers very high quality sound from radio broadcasts. The
reception and sound quality will always be dependent to a degree however
on the type of antenna(s) used as well as proximity to the broadcast origin,
geography and weather conditions.
DIRECT TUNING
If you know your desired station’s frequency allocation, you can tune
directly to the station.
1
Toggle front panel’s [PRESET/TUNE] button to switch between“Preset”
and“Tune”mode. Select TUNE mode (“TUNE”scrolls through the VFD).
Using the numeric keys of the remote control, key-in the frequency
allocation of the station. For example, to enter 104.50MHz, press“1”, “0”,
“4”, “5”and“0”or press“1”, “0”, “4”and“5”.
ABOUT ANTENNAS
2
The supplied ribbon-wire FM antenna can be connected to the rear panel
FM-antenna input using the included“balun”adapter and should be fully
extended to form a“T”. This folded-dipole antenna will usually work best
when oriented vertically, with the arms of its“T”fully outstretched and
arranged perpendicular to the origin of the desired broadcast. There are
no“rules”however, and experimenting freely with antenna placement and
orientation may yield the clearest sound and lowest background noise.
STORING PRESETS
The C 426 can store a mix of your 40 favorite AM and FM stations for
immediate recall.
1
2
To store a Preset, tune first to the desired frequency and then press the
front panel [MEMORY] button.
In areas of poor FM reception, an exterior FM antenna can improve
performance dramatically. If radio listening is important to you, consider
consulting an antenna installation professional to optimize your system.
“MEMORY”and the next available Preset number will continually flash
on the VFD (If all 40 preset numbers are allocated already, you can
overwrite an existing Preset number. Rotate the PRESET/TUNE control
knob to select the Preset number you want to overwrite).
Press the [MEMORY] button again to store the desired frequency on the
Preset number shown (“STORED”scrolls through the VFD). Your desired
frequency is now stored in the assigned preset.
The supplied AM“loop”antenna will usually provide adequate reception.
However, an exterior AM antenna can be used to improve reception.
Consult an antenna professional for more information.
3
ASSEMBLING THE LOOP ANTENNA
DIRECT RECALL OF A PRESET
1
2
3
Rotate the outer frame of the antenna.
Insert the bottom edge of the outer frame into the groove on the stand.
Extend the antenna cord.
You can directly recall a desired Preset number.
1
Toggle front panel’s [PRESET/TUNE] button to switch between“Preset”
and“Tune”mode. Select PRESET mode (“PRESET”scrolls through the
VFD).
2
Using the numeric keys of the remote control, key-in directly your
desired Preset number.
DELETE A PRESET
1
2
Select the Preset number to be deleted.
Press and hold both the front panel [MEMORY] and [DISPLAY] buttons
until“DELETE”is shown flashing in the VFD. Immediately release both
buttons and then press [DISPLAY] button again (“DELETED”scrolls
through the VFD). Current Preset number is now deleted.
SELECTING A TUNER BAND
Toggle front panel’s [FM/AM] button to select either AM or FM band. Using
the TNR 1, select desired band by directly pressing [AM] or [FM] button.
ABOUT USER NAMES
A particular Preset number can be assigned an eight-character“User Name”.
This applies only to stored AM stations and non-RDS FM stations. The
assigned“User Name”will be shown in the VFD whenever the associated
Preset number is recalled.
TUNING STATIONS
Toggle front panel’s [PRESET/TUNE] button to switch between“Preset”and
“Tune”mode. Select TUNE mode (“TUNE”scrolls through the VFD) or PRESET
mode (“PRESET”scrolls through the VFD).
1
Rotate the PRESET/TUNE control in either direction for more than 1
second to engage automatic tuning. The tuner will stop at the next
sufficiently strong signal it encounters. Note that this function“wraps”
– that is, it will continue to search from one end of the AM or FM band
to the other until it stops at a strong signal. Rotate the PRESET/TUNE
control again for more than 1 second to start searching again.
By briefly rotating the PRESET/TUNE control in either direction, manual
tuning is engaged for precise tuning to a specific frequency. With each
brief rotation, the tuner will take 0.05 MHz steps at FM band and 10
kHz (120V version) or 9 kHz (230V version) at AM band. When tuned
accurately to a station, “TUNED”will be illuminated in the VFD. The
antenna bars displayed below the ANTENNA icon in the VFD reflects the
signal strength of the tuned station.
ENTERING USER NAMES
To assign a Preset number with the user name“NEWS”, follow the procedure
as below.
1
2
Recall the desired Preset number.
Press and hold [DISPLAY] button until the display shows a flashing
cursor point.
2
3
4
Rotate the [PRESET/TUNE] control knob to select the first character of
the name (“N”from the alphabetical list).
Press [DISPLAY] button to select the character and correspondingly
move forward to the next position. Repeat this process for each
character in sequence.
5
Press the [MEMORY] button to store the User Name (“STORED”scrolls
through the VFD). The current Preset number is now assigned the user
name“NEWS”.
Automatic tuning is available on both AM and FM band.
10
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OPERATION
LISTENING TO AM/FM RADIO
ABOUT RDS
The Radio Data System (RDS) permits sending small amounts of digital
information using conventional FM radio broadcasts. The C 426 supports
two RDS modes, program-service name (PS mode) and radio-text (RT
mode). Not every FM station incorporates RDS in its broadcast signal. In
most areas you will find from one to several RDS-enabled stations, but it is
by no means impossible that your favorite stations will not be broadcasting
RDS data.
VIEW RDS TEXT
When an RDS-enabled FM broadcast is tuned, the station’s program-service
name (PS) will be shown in the VFD (i.e., “ROCK 101”) and a“RDS”symbol will
also be illuminated.
Press the [DISPLAY] key to toggle the readout between this and the station’s
radio-text (RT) readout, if any, which might scroll song or artist name, or any
other text of the station’s choosing.
11
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REFERENCE
TROUBLESHOOTING
CONDITION
POSSIBLE CAUSES
POSSIBLE SOLUTIONS
No power.
• The power cord is disconnected.
• Plug the power cord into the wall outlet
securely.
No sound.
• Power AC lead unplugged or power not
switched ON.
• Check AC lead is plugged in and power
switched on.
• Signal leads incorrectly connected.
• Check connections to amplifier.
• Re-tune or deactivate FM MUTE.
• Station not selected or weak signal with FM
MUTE
Noisy reception, hiss.
• Weak signal.
• Check station tuning. Adjust or replace
antenna.
Reception with whistling, buzzing noise.
No RDS information.
• Interference from other computers, games
consoles.
• Check station tuning. Switch off or move the
source of electrical noise.
• Station signal too weak.
• Check station tuning. Adjust or replace
antenna.
• Station not transmitting RDS data.
• Tune to an RDS station that supports program-
service name (PS mode) and radio-text (RT
mode).
C 426 does not respond to remote control
commands.
• Batteries are flat or incorrectly inserted.
• Check batteries.
• Infrared receiver (IR) window of the C 426 or IR
transmitter of the remote control is obstructed.
• Check IR windows and ensure clear line-of-
sight from remote control to C 426.
• C 426 front panel is in very bright sunlight or
ambient light.
• Reduce sunlight/room lighting.
RESTORING C 426 TO ITS FACTORY DEFAULT SETTINGS
1
2
3
Press and hold both the front panel [MEMORY] and [PRESET/TUNE] buttons until all VFD icons are illuminated.
Immediately press any front panel button; the C 426 will go to standby mode.
Press the STANDBY button to power up C 426 from standby mode; the C 426 is restored to its factory default settings with all Presets cleared/erased.
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REFERENCE
SPECIFICATIONS
FM SECTION
Usable Sensitivity (98 MHz)
Signal/Noise Ratio
15 dBμ
72 dB (60 dBμ IHF-WTD Mono)
66 dB (60 dBμ IHF-WTD Stereo)
Frequency Response
Channel Separation (60 dBμ) - 30 Hz
1 kHz
1.0 dB (20 Hz - 15 kHz, 60 dBμ)
33 dB
42 dB
10 kHz
32 dB
Capture Ratio (40 dBμ)
AM Suppression
3 dB
65 dB (60 dBμ, 100% Mod. FM, 30% Mod. AM)
Image Rejection (119.4 MHz)
I.F. Rejection (10.7 MHz)
Pilot Suppression (60 dBμ)
Total Harmonic Distortion* - Mono
Stereo
85 dB
78 dB
60 dB
0.25%
0.35%
24 dBμ
15 dBμ
26 dBμ
Auto Search Sensitivity - On
Off
RDS Decode Sensitivity
AM SECTION
Usable Sensitivity (999/1000 kHz)
Signal/Noise Ratio (5 mV in)
Total Harmonic Distortion (5 mV in)
IF Rejection (450 kHz)
30 dBμ
38 dB
3%
36 dB
28 dB
17 dB
66 dB
66 dB
66 dB
6 dB
Image Rejection (F+2xIF)
Selectivity
Loop Sensitivity (20dB S/N) - 999 /1000 kHz
603/600 kHz
1404/1400 kHz
Frequency response (100 - 2.3 kHz, 5 mV)
GENERAL SPECIFICATIONS
Standby power
Unit Dimension (W x H x D)
Net weight
<0.5W
435 x 87 x 312 mm (Gross)**
4.2 kg
5.3 kg
Shipping weight
* 60 dBμ, L=R 75 kHz for 120V version; 40 kHz Dev for 230V version
** Gross dimensions include feet, [PRESET/TUNE] control knob and rear panel terminals.
information about C 426.
13
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A DIVISION OF LENBROOK INDUSTRIES LIMITED
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No part of this publication may be reproduced, stored or transmitted in any form without the written permission of NAD Electronics International.
C 426 Manual Issue 1.6-05/10
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