MP3 CD player/weather band receiver
Model:
CQ-5251JU
Operating Instructions
TEXT
¡Please read these instructions (including “Limited Warranty” and “Customer Services Directory”) carefully before using this product and
keep this manual for future reference.
Observe the following cautions when
installing.
Caution
Observe the following cautions when using
this unit.
Keep the sound volume at an appropriate level.
Keep the volume level low enough to be aware of road and
traffic conditions while driving.
Do not insert or allow your hand or fingers to be
caught in the unit.
To prevent injury, do not get your hand or fingers caught in
moving parts or in the disc slot. Especially watch out for
infants.
This unit is designed for use exclusively in auto-
mobiles.
Do not operate the unit for a prolonged period with
the engine turned off.
Operating the audio system for a long period of time with
the engine turned off will drain the battery.
Do not expose the unit to direct sunlight or exces-
sive heat.
Otherwise these will raise the interior temperature of the
unit, and it may lead to smoke, fire, or other damage to the
unit.
Do not use the product where it will be exposed to
water, moisture, or dust.
Exposure of the unit to water, moisture, or dust may lead
to smoke, fire, or other damage to the unit. Make especially
sure that the unit does not get wet in car washes or on
rainy days.
❑
Refer wiring and installation to qualified service
personnel.
Installation of this unit requires special skills and experi-
ence. For maximum safety, have it installed by your dealer.
Panasonic is not liable for any problems resulting from
your own installation of the unit.
❑
❑
❑
❑
Follow the instructions to install and wire the product.
Not following the instructions to properly install and wire
the product could cause an accident or fire.
Take care not to damage the leads.
When wiring, take care not to damage the leads. Prevent
them from getting caught in the vehicle chassis, screws,
and moving parts such as seat rails. Do not scratch, pull,
bend or twist the leads. Do not run them near heat sources
or place heavy objects on them. If leads must be run over
sharp metal edges, protect the leads by winding them with
vinyl tape or similar protection.
❑
❑
❑
❑
❑
Use the designated parts and tools for installation.
Use the supplied or designated parts and appropriate tools
to install the product. The use of parts other than those
supplied or designated may result in internal damage to the
unit. Faulty installation may lead to an accident, a malfunc-
tion or fire.
❑
❑
Do not block the air vent or the cooling plate of the
unit.
Blocking these parts will cause the interior of the unit to
overheat and will result in fire or other damage.
Do not install the product where it is exposed to
strong vibrations or is unstable.
Avoid slanted or strongly curved surfaces for installation. If
the installation is not stable, the unit may fall down while
driving and this can lead to an accident or injury.
❑
❑
To ensure safety, never attempt to preset stations
while you are driving.
Depending upon the transmission condition of
electro-magnetic waves, the geographical reasons
and/or the weather conditions, you may not
receive the NOAA radio partially or at all.
Make sure that your weather radio can receive
properly before driving, especially, before use in a
critical condition.
Set the volume level to low enough before the AUX
connection is completed.
Failure to observe this, the loud noise may come out and
damage your speakers and your hearing. Direct connection
of the speaker/headphone output of an external device
without any attenuator may distort sound or damage the
connected external device.
❑
Installation Angle
The product should be installed in a horizontal position
with the front end up at a convenient angle, but not more
than 30˚.
❑
❑
The user should bear in mind that in some areas there may
be restrictions on how and where this unit must be
installed. Consult your dealer for further details.
❑
❑
Wear gloves for safety. Make sure that wiring is
completed before installation.
To prevent damage to the unit, do not connect the
power connector until the whole wiring is complet-
ed.
Do not connect more than one speaker to one set
of speaker leads. (except for connecting to a
tweeter)
❑
Caution
• PLEASE FOLLOW THE LAWS AND REGULATIONS OF YOUR STATE, PROVINCE OR COUNTRY FOR WIRING,
INSTALLATION, AND USE OF THIS UNIT AND THE DEVICES TO BE CONNECTED.
Find the model number and serial number on either the back or bottom of the unit. Please record them in the space
below and retain this booklet as a permanent record of your purchase to help with identification in case of theft.
MODEL NUMBER
DATE PURCHASED
CQ-5251JU
SERIAL NUMBER
FROM
3
CQ-5251JU
Safety Information (continued)
The following applies only in the U.S.A.
Part 15 of the FCC Rules
Warning
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK OR
PRODUCT DAMAGE, DO NOT EXPOSE THIS APPLIANCE TO
RAIN, SPLASHING, DRIPPING OR MOISTURE.
FCC Warning:
This device complies with Part 15 of the FCC Rules for Radio
Receiver. Operation is subject to the condition that this device
may not cause harmful interference. Any unauthorized changes or
modifications to this equipment may void the user's authority to
operate this device.
Caution
THIS PRODUCT IS A CLASS I LASER PRODUCT.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE
OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN
MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
DO NOT OPEN COVERS AND DO NOT REPAIR BY
YOURSELF. REFER SERVICING TO QUALIFIED
PERSONNEL.
Laser Products:
Wave length: 790 nm
Laser power: No hazardous radiation is emitted with safety
protection.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, AND
ANNOYING INTERFERENCE, USE ONLY THE INCLUDED
COMPONENTS.
Customer Services Directory
U.S.A.
Customer Services Directory
Accessory Purchases:
(United States and Puerto Rico)
(United States and Puerto Rico)
Purchase Parts, Accessories and Instruction Books online for all
Panasonic Products by visiting our Web Site at:
Obtain Product Information and Operating Assistance; locate
your nearest Dealer or Servicenter; purchase Parts and
Accessories; or make Customer Service and Literature requests
by visiting our Web Site at:
or, send your request by E-mail to:
or, contact us via the web at:
You may also contact us directly at:
You may also contact us directly at:
1-800-332-5368 (Phone) 1-800-237-9080 (Fax Only) (Monday-
Friday 9 am to 8 pm, EST.)
1-800-211-PANA (7262),
Panasonic Services Company
Monday-Friday 9 am-9 pm; Saturday-Sunday 10 am-7 pm, EST.
20421 84th Avenue South, Kent, WA 98032
(We accept Visa, MasterCard, Discover Card, American Express,
and Personal Checks)
For hearing or speech impaired TTY users,
TTY : 1-877-833-8855
For hearing or speech impaired TTY users,
TTY : 1-866-605-1277
4
CQ-5251JU
Limited Warranty
during or after the warranty period, you may contact your dealer or
Servicenter. If the problem is not handled to your satisfaction, then write to
warrantor’s Consumer Affairs Department at the addresses of the warrantor.
U.S.A.
PANASONIC CONSUMER ELECTRONICS COMPANY,
DIVISION OF PANASONIC CORPORATION OF NORTH AMERICA
One Panasonic Way, Secaucus, New Jersey 07094
PARTS AND SERVICE WHICH ARE NOT COVERED BY THIS LIMITED WAR-
RANTY ARE YOUR RESPONSIBILITY.
PANASONIC AUTO PRODUCTS
LIMITED WARRANTY
Customer’s Record
Model
No.
LIMITED WARRANTY COVERAGE
If your product does not work properly because of defects in materials and
workmanship.
Panasonic Consumer Electronics Company or Panasonic Sales Company
(collectively referred to as “the warrantor”) will, for the length of the period
indicated in the chart below, which starts with the date of original purchase
(“warranty period”), at its option either (a) repair your product with new or
refurbished parts, or (b) replace it with a new or refurbished product. The
decision to repair or replace will be made by the warrantor.
Serial
No.
Dealer’s
No.
Code
No.
Dealer’s
Address
Categories
Parts
Labor
Date of
Purchase
Audio Components (except items listed
below)
One (1) Year
One (1) Year
MXE Series Audio Components (except
Two (2) Years
One (1) Year
Two (2) Years
Not Applicable
items listed below)
Speakers
Defective Car Audio Speakers under war-
ranty must be exchanged at the place of
purchase. Contact your Dealer for details.
Accessories (in exchange for defective
items)
Ninety (90) Days Not Applicable
During the “Labor” warranty period, there will be no charge for labor. During
the “Parts” warranty period, there will be no charge for parts. You must carry
in or mail in your product prepaid during the warranty period. If non-
rechargeable batteries are included, they are not warranted. This warranty
only applies to products purchased and serviced in the United States or
Puerto Rico. This warranty is extended only to the original purchaser of a
new product which was not sold “as is”. A purchase receipt or other proof of
the original purchase date is required for warranty service.
CARRY-IN OR MAIL-IN SERVICE
For Carry-In or Mail-In Service in the United States and Puerto Rico call 1-
800-211-PANA (7262) or visit
LIMITED WARRANTY LIMITS AND EXCLUSIONS
This warranty ONLY COVERS failures due to defects in materials and work-
manship, and DOES NOT COVER normal wear and tear or cosmetic damage.
The warranty ALSO DOES NOT COVER damages which occurred during
shipment, failures which are caused by products not supplied by the warran-
tor, failures which result from accident, misuse, abuse, neglect, bug infesta-
tion, mishandling, misapplication, alteration, faulty installation, set-up
adjustment, maladjustment of consumer control, improper maintenance,
improper antenna, inadequate signal reception or pickup, power line surge,
improper voltage supply, lightning, modification, commercial use (such as
use in hotels, offices, restaurants, or other business uses) or rental use of
the product, or service by anyone other than the technician from Factory
Servicenter or other authorized service centers, or damage that is attributa-
ble to acts of God.
THERE ARE NO EXPRESS WARRANTIES EXCEPT AS LISTED UNDER
“LIMITED WARRANTY COVERAGE”. THE WARRANTOR IS NOT LIABLE
FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE
USE OF THIS PRODUCT, OR ARISING OUT OF ANY BREACH OF THIS
WARRANTY. (As examples, this excludes damages for lost time, cost of hav-
ing someone remove or re-install an installed unit if applicable, travel to and
from the servicer, and loss of media, data or other memory contents. The
items listed are not exclusive, but are for illustration only.) ALL EXPRESS
AND IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF MER-
CHANTABILITY, ARE LIMITED TO THE PERIOD OF THE LIMITED WARRAN-
TY.
Some states do not allow the exclusion or limitation of incidental or conse-
quential damages, or limitations on how long an implied warranty lasts, so
the exclusions may not apply to you.
This warranty gives you specific legal rights and you may also have other
rights which vary from state to state. If a problem with this product develops
5
CQ-5251JU
Before Reading These Instructions
Panasonic welcomes you to our ever growing family of electronic product owners. We know that this product will
bring you many hours of enjoyment. Our reputation is built on precise electronic and mechanical engineering, man-
ufactured with carefully selected components and assembled by people who take pride in their work. Once you dis-
cover the quality, reliability, and value we have built into this product, you too will be proud to be a member of our
family.
Accessories
1. Operating Instructions ..................................................................................................1
2. Supplied Hardware.............................................................................1 set (➡ page 21)
Contents
Safety Information . . . . . . . . . . . . . . . . . . . . . .2
Customer Services Directory . . . . . . . . . . . . . . .4
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . .5
Before Reading These Instructions . . . . . . . . . . .6
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . .20
Electrical Connections . . . . . . . . . . . . . . . . . . .24
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . .25
If You Suspect Something Wrong, Common, Radio, CD,
MP3/WMA, USB, Product Servicing
Error Display Messages . . . . . . . . . . . . . . . . . .29
CD/MP3/WMA, USB
Front AUX terminal, Rear AUX terminal, Sound Control, USB
Connector
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . .31
Cleaning this Unit, Caution
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . .8
First time power on, Clock adjustment
Notes on MP3/WMA . . . . . . . . . . . . . . . . . . . .32
Controls Layout . . . . . . . . . . . . . . . . . . . . . . . .9
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Power, Source Selection, Volume, Mute, Display Change
Sound Controls . . . . . . . . . . . . . . . . . . . . . . . .11
SQ (Sound Quality) , Audio Modes (Bass/Treble/Balance/Fader)
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Band, Frequency adjustment, Auto Preset Memory (APM),
Preset station selection, Manual Preset Memory, Tuning in a
Weather Band Station
Cautions as to compressed audio files, Cautions as to the
display of this unit, Cautions as to compressed audio files,
Common
Notes on Discs . . . . . . . . . . . . . . . . . . . . . . . .34
How to hold the disc, Unusable discs, Disc insert, Disc
cleaning, Notes on CD-Rs/RWs
Specifications . . . . . . . . . . . . . . . . . . . . . . . .35
General, FM Stereo Radio, AM Radio, Weather Band Radio,
CD Player
CD/MP3/WMA Player . . . . . . . . . . . . . . . . . . . .14
Disc loading/ejection, Track/File selection, Folder selection
(MP3/WMA), Pause, Display change, Scan, Repeat, Random
USB (MP3/WMA) . . . . . . . . . . . . . . . . . . . . . .16
USB device connection, File selection, Folder selection,
Pause, Display change, Scan, Repeat, Random
iPod Control . . . . . . . . . . . . . . . . . . . . . . . . . .18
Song selection, Pause, Display change, Playing Mode
selection, Repeat, Random
6
CQ-5251JU
Features
Front AUX terminal
USB Connector
Your mobile audio player and other devices are connectable to
this unit without any difficulty.
The USB Connector is equipped on the front panel. (➡ page 16)
By connecting a USB memory (not included) to USB connector
via a USB extension cable (USB 2.0, not included), you can
enjoy MP3/WMA files stored on the USB memory (not included)
in your car.
Rear AUX terminal
For more convenient connection, rear AUX terminals are now
provided on the unit itself.
®
By connecting iPod series to USB connector via a USB
extension cable for iPod (USB 2.0, not included), you can enjoy
music files stored on the iPod series in your car. Further
information about the controllable iPod is described on page 18.
Sound Control
SQ (Sound Quality)
You have four preset modes (FLAT, ROCK, POP and VOCAL).
*iPod is a trademark of Apple Inc., registered in the U.S. and
other countries.
"Made for iPod" means that an electronic accessory has been
designed to connect specifically to iPod and has been certified
by the developer to meet Apple performance standards.
Apple is not responsible for the operation of this device or its
compliance with safety and regulatory standards.
7
CQ-5251JU
Preparation
First time power on
Turn the key in the ignition until the accessory
1
indicator lights.
Press [SRC] (PWR).
2
Clock adjustment
The 12-hour (AM/PM) system is used for the clock adjustment.
Press [DISP] (CLK).
1
(Clock display)
Hold down [DISP] (CLK) for 2 sec. or more.
2
Hour blinks
*Indicator for AM or PM time
*
: Represents PM (Post Meridiem) time.
*
: Represents AM (Ante Meridiem) time.
Adjust the hour.
3
[
[
]
]
:
:
Sets ahead.
Sets back.
d
s
Hour entered
Minute blinks
Press [DISP] (CLK).
4
5
Adjust the minute.
[
]
:
:
Sets ahead.
Sets back.
d
s
[
]
Minute entered
Completed
Press [DISP].
6
Notes:
¡ “ADJUST” is displayed before adjusting the clock.
¡ Hold down [ ] or [ ] to change numbers rapidly.
d
s
¡ When you want to readjust the time, repeat steps 2 to 6.
8
CQ-5251JU
Controls Layout
SRC Source (a page 10)
PWR Power (a page 10)
u (Eject) (a page 14)
Disc slot
BAND (a page 12)
DISP Display (a page 10, etc.)
5
y
Play/Pause
CLK Clock (a page 8)
(a page 14,16)
APM Auto Preset Memory
(a page 12)
USB Connector
(a page 16)
Preset Buttons [1] to [6]
AUX
MUTE (a page 10)
SQ Sound Quality
(a page 11)
(a page 12)
SCROLL (a page 14, etc.)
SCAN/REPEAT/RANDOM (a page 14,16)
FOLDER }/{ (a page 14, 16)
From line output of
external sound/audio
device (ex. Silicon-
audio player, HDD
player, etc.)
VOLUME (a page 10)
PUSH SEL Select
(a page 11)
TUNE/SEEK
/
(a page 12)
s d
FILE (Track/File)
/
(a page 14, 16)
s d
9
CQ-5251JU
General
Source Selection
Display Change
The source changes as follows every time [SRC] (Source)
Press [DISP] to switch to the clock display.
is pressed.
When the power is off:
Radio
FM, AM, WB
(a page 12)
clock display (default)
No display
Disc player
CD, MP3/WMA
(a page 14)
Note: “ADJUST” is displayed when the clock is not adjusted.
(a page 8)
USB
MP3/WMA
(a page 16)
AUX1
Device connected to
the front AUX terminal
of this unit
AUX2
Device connected to
the rear AUX terminal
of this unit
Power
Volume
Turn the knob clockwise to increase volume, and counterclock-
wise to decrease volume.
Turn the key in the ignition until the accessory indicator lights.
Power on: Press [SRC](PWR).
Volume level (0 to 40)
Power off: Hold down [SRC](PWR) for more than 1 second.
Up
(default:18)
Down
Mute
Press [MUTE] to mute the sound completely.
Press [MUTE] again to cancel.
10
CQ-5251JU
Sound Controls
SQ (Sound Quality)
SQ is a function that can call up various sound types at the
touch of button in accordance with your listening music type.
Press [SQ] for more than 2 seconds to select the sound type as
follows:
(FLAT) flat frequency response:
does not emphasize any part.
(default)
(ROCK) speedy and heavy sound:
exaggerates bass and treble.
(POP) wide-ranged and deep sound:
slightly emphasizes bass and treble.
(VOCAL) clear sound:
emphasizes middle tone and slightly
emphasizes treble.
SQ indicator
Audio Modes (Bass/Treble/Balance/Fader)
Push [SEL] to select the audio mode.
Turn [VOLUME] clockwise or counterclock-
1
2
wise to change each level.
q: Up
(Volume)
w: Down
(Setting Range: 0 to 40, default: 18)
q: Increased
w: Decreased
(Bass)
(Setting Range: –12 dB to +12 dB by 2 dB,
default: 0 dB)
q: Increased
w: Decreased
(Treble)
(Setting Range: –12 dB to +12 dB by 2 dB,
default: 0 dB)
q: Right enhanced
w: Left enhanced
(Balance)
(Setting Range: 15 levels each and 0 (center),
default: CNT)
q: Front enhanced
w: Rear enhanced
(Fader)
(Setting Range: 15 levels each and 0 (center),
default: CNT)
Note: If no operation takes place for more than 5 seconds in audio
mode (2 seconds in volume mode), the display returns to the regular
mode.
11
CQ-5251JU
Radio
Band
Caution
Press [BAND] to change the band.
To ensure safety, never attempt to preset stations
while you are driving.
(FM stereo) indicator
lights while receiving an FM stereo signal.
Weather Band
(a page 13)
Frequency adjustment
Preset station selection
[TUNE/SEEK
]: Lower
]: Higher
Press the corresponding preset button from [1] to [6] to tune in
a preset station.
s
d
[TUNE/SEEK
Note: Hold down for 0.5 sec. or more and release for station
search.
Auto Preset Memory (APM)
Manual Preset Memory
Press and hold [BAND] (APM: auto preset memory) for more
than 2 seconds.
• The 6 stations with good reception will be automatically saved
in the memory under preset buttons from [1] to [6].
Use manual or seek tuning to find a station.
1
2
Press and hold one of the preset buttons
from [1] to [6] until the display blinks once.
• Once set, the preset stations are sequentially scanned for 5
seconds each.
• Press one of the buttons from [1] to [6] to stop sequentially
Preset Number
scan.
Note: New stations overwrite existing saved stations.
blinks once
Note: New stations overwrite existing saved stations.
12
CQ-5251JU
Tuning in a Weather Band Station
Press [BAND] to select WB (Weather Band).
1
Warning
(a page 12)
Any NOAA broadcast weather report, including current and
forecasts, may not reflect your actual weather conditions at
your exact time and location. You should always pay
attention to your actual weather conditions to make safe
decisions accordingly.
Press any of the buttons [1] to [6] to monitor
the preset station.
2
Note: The weather band (CH1-6) has been preset. CH7 is
selected by pressing [}] or [{].
Weather Band Stations
National Weather Radio Broadcasts from over 380 Iocations
throughout the U.S. on seven VHF/FM frequencies.
Weather Band Frequency (channel) Number
Tune to weather band to receive continuous weather
information 24 hours a day on one of the following frequencies.
1. 162.550 MHz
2. 162.400 MHz
3. 162.475 MHz
4. 162.425 MHz
5. 162.450 MHz
6. 162.500 MHz
7. 162.525 MHz
Weather Band Frequency
Occasionally the frequency of an existing or planned station
must be changed because of unexpected radio frequency
interfere with adjacent NOAA weather Radio Stations and/or
with other Government or commercial Operations within the
area. If you have a question concerning NOAA Weather Radio,
please contact your nearest National Weather Service Office.
13
CQ-5251JU
CD/MP3/WMA Player
Cautions
¡
Do not insert a disc when the
indicator lights.
¡ Refer to the section on “Notes on MP3/WMA”. (a page 32)
¡ This unit does not support a MIX mode CD (a CD containing
both CD-DA and compressed audio data). In case of using
such a CD, problems may occur such as anacoustic play-
back.
¡ This unit does not support 8 cm {3"} discs.
¡ Do not use irregularly shaped discs. (a page 34)
¡ Do not use discs that have a seal or label attached.
¡ Do not insert foreign matter into the disc slots.
¡ Refer to the section on “Notes on CD-Rs/RWs”
(a page 34).
Pause
Disc loading/ejection
Press [BAND] (
Press again to cancel.
).
5
/
h
Loading
Load a disc in with the printed side facing up.
Notes:
• The power will be turned on automatically when a disc is loaded.
• Playback will start automatically after the player recognized the
loaded disc as an ordinary music CD or MP3/WMA disc.
Ejection
Press [u] to eject the disc.
Display change
(DISC)
indicator
(Repeat)/
indicator
(Random)/
(a page 15)
Text Scroll
Scan, Repeat, Random (a page 15)
Track/File selection
[FILE
]: Next track/file
]: Preceding track/file (press twice)
d
s
[FILE
Note: Hold down for fast forward/reverse.
Folder selection (MP3/WMA)
[FOLDER }]: Next folder
[FOLDER {]: Preceding folder
14
CQ-5251JU
Display change
Press [DISP] to change the display.
Notes:
¡ For scrolling text, press [3] (SCROLL).
¡ “NO TEXT” is displayed when there is no information on the disc.
CD-DA
MP3/WMA
Track number/
Play time
Folder number/File
number
Disc title*
Track title*
Clock
Play time
Folder name/
Album*
File name/
Title, artist*
* CD TEXT Display
Disc title and Track title name are displayed.
Clock
* ID3 Tag ON/OFF
Hold down [3] (SCROLL) for more than 2 seconds.
TAG ON: album title and song title/artist name are displayed.
TAG OFF: folder name/file name are displayed. (Default)
Scan, Repeat, Random
Scan play
Random play
All the available tracks/files are played in a random sequence.
The first 10 seconds of each track/file is played in sequence.
Press [4] (SCAN). Track/file number blinks.
Press [6] (RANDOM).
lights.
Press again to cancel.
Press again to cancel.
Folder random play (MP3/WMA)
Folder scan play (MP3/WMA)
All the available files in current folder are played in a random
From the next folder, the first 10 seconds of the first file in each
folder is played in sequence.
sequence.
Hold down [6] (RANDOM) for more than 2 seconds.
,
Hold down [4] (SCAN) for more than 2 seconds.
lights and folder number blinks.
lights.
Hold down again to cancel.
Hold down again to cancel.
Repeat play
The current track/file is repeated.
Press [5] (REPEAT).
lights.
Press again to cancel.
Folder repeat play (MP3/WMA)
The current folder is repeated.
Hold down [5] (REPEAT) for more than 2 seconds.
lights.
,
Hold down again to cancel.
15
CQ-5251JU
USB (MP3/WMA)
Compatible USB devices
Cautions
¡ USB Mass Storage Class
¡ Do not connect a USB device directly to this unit. If a USB
device is connected directly to this unit and an accident
occurs, or if the brakes are applied suddenly, the driver or
passenger may bump into the USB device and may be
injured.
For details as to whether your USB memory/USB Audio is
compatible with USB Mass Storage Class, please contact
the USB memory/USB Audio manufacturer.
¡ USB Standard Compatibility 1.1/2.0 Full Speed
¡ File System FAT12/16/32
¡ Connect your USB device to your car audio using a stan-
dard USB extension cable (5 m or less).
¡ Maximum current less than 500 mA
¡ Capacity less than 4 GB (1 partition)
¡ Position the USB device and USB extension cable so that
they do not interfere with your driving.
Notes: When an iPod compatible with this unit is connected,
the iPod mode is activated. (a page 18)
¡ Do not connect any USB device other than a USB memory
or a USB audio player. Do not connect multiple USB
devices to the USB connector. Supplying power to multi-
ple USB devices from the connector could cause over-
heating and smoking.
Pause
USB device connection
Press [BAND] (
).
5
Open the USB connector cover and connect a USB device to this
/
h
unit.
Press again to cancel.
Notes:
¡ When connecting (disconnecting) a USB device, turn down
the volume of the unit.
¡ When connecting a USB device, make sure the connector is
pushed all the way into the socket.
indicator
Display change
(a page 17)
(Repeat)/
indicator
(Random)/
lights when a USB
device is loaded
Text Scroll
File selection
[FILE
]: Next file
]: Preceding file (press twice)
d
s
Scan, Repeat, Random (a page 17)
[FILE
Note: Hold down for fast forward/reverse.
Folder selection
[FOLDER }]: Next folder
[FOLDER {]: Preceding folder
16
CQ-5251JU
Notes:
¡ Refer to the section on “Notes on MP3/WMA”. (a page 32)
¡ Do not leave the USB device for long periods of time in places inside the car where the temperature rises too high.
¡ This unit may not operate correctly if a cable other than a USB standard cable is used.
¡ To prevent dirt and dust from adhering to the USB connector, close the cover of this unit when not in use.
¡ Back up any important data beforehand. We cannot accept responsibility for any lost data.
¡ The use of USB devices that contain data files other than MP3/WMA format is not recommended.
¡ A file with a play time exceeding 1 000 minutes will not play correctly to the end of the track.
¡ Playback or display may not be possible depending on the type of USB device or the condition of the recording.
¡ Depending on the connected USB memory, the order in which the files are played back may differ from the order in which the
files were stored.
Display change
Scan, Repeat, Random
Press [DISP] to change the display.
Notes:
Scan play
The first 10 seconds of each file is played in sequence.
¡ For scrolling text, press [3] (SCROLL).
¡ “NO TEXT” is displayed when there is no information on the
USB device.
Press [4] (SCAN). File number blinks.
Press again to cancel.
Folder scan play
Folder number/
File number
From the next folder, the first 10 seconds of the first file in each
folder is played in sequence.
Hold down [4] (SCAN) for more than 2 seconds.
lights and folder number blinks.
Hold down again to cancel.
Play time
Repeat play
The current file is repeated.
Press [5] (REPEAT).
lights.
Press again to cancel.
Folder name/ Album*
Folder repeat play
The current folder is repeated.
Hold down [5] (REPEAT) for more than 2 seconds.
,
lights.
File name/
Title, artist*
Hold down again to cancel.
Random play
All the available files are played in a random sequence.
Press [6] (RANDOM).
Press again to cancel.
lights.
Clock
Folder random play
All the available files in current folder are played in a random
sequence.
Hold down [6] (RANDOM) for more than 2 seconds.
* ID3 Tag ON/OFF
Hold down [3] (SCROLL) for more than 2 seconds.
TAG ON: album title and song title/artist name are displayed.
TAG OFF: folder name/file name are displayed. (Default)
,
lights.
Hold down again to cancel.
17
CQ-5251JU
iPod Control
By connecting iPod series to USB connector via a USB extension cable for iPod (USB 2.0, not included), you can enjoy music files-
stored on the iPod series in your car.
Controllable iPod/software version (USB connector)
¡
5th generation iPod/ver. 1.2.1 (Video playback is not supported.)
¡1st generation iPod nano/ver. 1.3.1
¡2nd generation iPod nano/ver. 1.1.3
* Operation check has been completed with software available at the end of October, 2008. We do not guarantee the operation
with our future products or upgraded software.
Preparation:
¡Connect an iPod to USB connector of this unit.
indicator
Pause
Press [BAND] (
/
lights when a USB extension cable for iPod and iPod are con-
).
5
/
h
nected with USB connector and USB mode is selected.
Press again to cancel.
(Repeat)/
(Random) indicator
USB connector
Display change
(a page 19)
Text Scroll
Song selection
Repeat, Random (a page 19)
[FILE
]: Next song
d
s
[FILE
]: Preceding song (press twice)
Note: Hold down for fast forward/reverse.
Playing Mode selection (a page 19)
18
CQ-5251JU
Notes:
¡ Connect this unit after turning down the volume of the iPod.
¡ “PAUSE” appears until the iPod is recognized after connect-
ing the iPod, turning on the power of the main unit, or per-
forming source selection on the main unit side. This indi-
cates there is nothing wrong with the main unit.
¡ The shuffle function of iPod corresponds to the RANDOM
function of this unit.
¡ Please make sure to detach the iPod after turning off the car
engine (turning the ACC to OFF). The iPod may not shut down
while still connected, which may result in battery depletion.
¡ Please do not connect iPod accessories such as an iPod
remote control or headphones while connecting iPod with
the unit. The unit may not operate correctly.
¡ We do not guarantee all the operations of connectable devices.
Display change
Playing Mode selection
Press [DISP] to change the display.
The type with which playback data is classified is selectable.
Notes:
Press [2] (FOLDER }) to call up the play
1
2
¡ For scrolling text, press [3] (SCROLL).
¡ “NO TEXT” is displayed when there is no information on the
iPod.
mode selection screen.
Turn [VOL] to select the play mode.
PLAYLIST: Playback by playlist (default)
Song number/
Total song
ARTIST: Playback by artist
q
w
ALBUM: Playback by album
GENRE Playback by genre
Notes:
Play time
Song title
Album name
Artist name
Clock
¡ When the [2] (FOLDER }) button is pressed, the
regular screen appears.
¡ “NO SONG” will appear if no song exists.
Press [PUSH SEL] to determine the selec-
3
4
tion.
Turn [VOL] to select the portion to play.
Note: When the [2] (FOLDER }) button is pressed, the
previous screen appears.
Press [PUSH SEL] to determine the selec-
5
tion.
Repeat, Random
Repeat play
The current song is repeated.
Press [5] (REPEAT).
Press again to cancel.
lights.
Note: The all Repeat Play function of iPod is always activated
and cannot be canceled from this unit.
Random play (Shuffle)
All the available songs are played in a random sequence.
Press [6] (RANDOM).
lights.
Press again to cancel.
Album random play
All the playable albums are played in a random sequence.
Hold down [6] (RANDOM) for more than 2 seconds.
blinks.
Hold down again to cancel.
19
CQ-5251JU
Installation
WARNING
❐ This installation information is designed for experienced installers and is not intended
for non-technical individuals. It does not contain warnings or cautions of potential dan-
gers involved in attempting to install this product.
Any attempt to install this product in a vehicle by anyone other than a qualified installer
could cause damage to the electrical system and could result in serious
personal injury or death.
❐ If your vehicle is equipped with air bag and/or anti-theft systems, specific procedures
may be required for connection and disconnection of the battery to install this product.
Before attempting installation of this electronic component, contact your vehicle dealer
or manufacturer to determine the required procedure and strictly follow their instructions.
FAILURE TO FOLLOW THE PROCEDURE MAY RESULT IN THE UNINTENDED DEPLOY-MENT
OF AIR BAGS OR ACTIVATION OF THE ANTI-THEFT SYSTEM RESULTING IN DAMAGE TO
THE VEHICLE AND PERSONAL INJURY.
❐ Dashboard Specifications
❐ Overview
This product should be installed by a professional.
However, if you plan to install this product yourself, your first step
is to decide where to install it. The instructions in these pages will
guide you through the remaining steps:
(Please refer to the “WARNING” statement above.)
THICKNESS
MIN. 4.75 mm {3/16”}
MAX. 5.56 mm {7/32”}
• Identify and label the car wires.
• Connect the vehicle wires to the wires of the power connector.
• Install the unit in the dashboard.
53 mm {2-3/32”}
• Check the operation of the unit.
182 mm {7-5/32”}
If you encounter problems, please consult your nearest profes-
sional installer.
Caution
This unit operates with a 12 V DC negative ground auto battery
system only. Do not attempt to use it in any other system.
Doing so could cause serious damage.
Before you begin installation, look for the item which is packed
with your unit.
• Installation Hardware…Needed for in-dash installation.
20
CQ-5251JU
❐ Preparation
❐ Installation Hardware
No.
Item
Diagram Q’ty
Warning
q
Mounting Collar*
1
If your vehicle is equipped with air bag and/or anti-theft sys-
tems, specific procedures may be required for connection and
disconnection of the battery to install this product.
w
e
r
t
y
u
i
Plain washer (5 mm ø)
Spring Washer (5 mm ø)
Hex. Nut (5 mm ø)
2
2
2
1
1
1
2
Before attempting installation of this electronic component,
contact your vehicle dealer or manufacturer to determine the
required procedure and strictly follow their instructions.
FAILURE TO FOLLOW THE PROCEDURE MAY RESULT IN THE
UNINTENDED DEPLOYMENT OF AIR BAGS OR ACTIVATION
OF THE ANTI-THEFT SYSTEM RESULTING IN DAMAGE TO
THE VEHICLE AND PERSONAL INJURY.
Rear Support Strap
• Disconnect the cable from the negative (–) battery terminal (see
warning and caution below).
Hex. Bolt
(5 mm ø × 25 mm)
• Remove Mounting Collar q from the main unit temporarily,
which are already mounted at shipment.*
Toothed Lock Washer
(5 mm ø)
Removal Tool
(U-shaped)
Caution
Various settings that have been stored in the memory in other
on-board equipment (vehicle navigation etc.) may be lost if the
battery terminals are disconnected.
Therefore, we recommend to make a record of or to back up
the settings before disconnecting the terminals.
After completing installation of the main unit, set the equip-
ment again according to the record.
• Unit should be installed in a horizontal position with the front
end up at a convenient angle, but not more than 30˚.
0 – 30°
❐ Dashboard Installation
Installation Opening
This unit can be installed in any dashboard having an opening as
shown below. The dashboard should be 4.75 mm {3/16”} – 5.56
mm {7/32”} thick in order to be able to support the unit.
21
CQ-5251JU
Installation (continued)
Mounting and removing the Main Unit
❏ Mounting Procedures (When using Mounting Collar q)
The included Mounting Collar q is designed specially for this unit. Do not use it to attach any other model.
Insert Mounting Collar q into the
dashboard, and bend the mounting
tabs out with a screwdriver.
1
The tabs to be bent vary depending on
the vehicle. To securely install the
unit, fully bend a number of the tabs
so that there is no rattling.
Example:
Tab
q Mounting
Collar
Power Connector
Mounting Holes
Mounting Bolt
Establish the rear connection of the unit.
After fixing Power Connector, fix the rear of the
unit to the vehicle body by either method (a) or (b)
shown in the next page.
2
3
Mounting springs (C)
After installation reconnect the negative
(–) battery terminal.
Engage the Mounting
Springs (C) in the
mounting holes of
the Mounting Collar
q firmly.
Mounting
Hole
Mounting Spring
22
CQ-5251JU
Method for Fixing the Rear of the Unit
(b) Using the rubber cushion (option)
(a) Using the rear support strap t
Fire Wall of Vehicle
wPlain Washer
Rear support bracket
(provided on the vehicle)
yHex. Bolt
(5 mm ø x 25 mm)
Rubber cushion (option)
eSpring Washer
rHex. Nut
uToothed Lock Washer
rHex. Nut (5 mm ø)
eSpring Washer
Mounting bolt
(5 mm ø)
wPlain Washer
q Mounting collar
tRear Support Strap
iMounting Bolt (5 mm ø)
qMounting Collar
❐ To Remove the Unit from the vehicle's dashboard
Insert each Removal Tool i and pull.
i Removal Tool
(U-shaped)
Note: Do not lose Removal Tools. They will be needed to remove the unit from the vehicle's dashboard.
23
CQ-5251JU
Electrical Connections
Caution
• This wiring information is for experienced technical individual, for safety reason, please your dealer wire this connection.
• This product is designed to operate with a 12 V DC, negative ground battery system.
• To prevent damage to the unit, be sure to follow the connection diagram below.
• Do not insert the power connector into the unit until the wiring is completed.
• Be sure to insulate any exposed wires from a possible short-circuit from the vehicle chassis. Bundle all cables and keep cable
terminals free from touching any metal parts.
• Remember, if your vehicle has a drive computer or a navigation computer, the data of its memory maybe erased when the bat-
tery terminals are disconnected.
❐ Wiring Diagram
CD Receiver
CQ-5251JU
*Fuse (15 A)
Refer fuse replacement to
your nearest authorized
Panasonic Servicenter.
Do not try fuse replacement
by yourself.
10 12 14 16
R (Red)
AUX2 input Connector
9
7
11 13 15
AUX-IN2
L (White)
5
3
1
8
6
4
2
Antenna
(Rear Side)
Detail of power connector
NO.
1
2
3
4
5
6
7
8
FUNCTION
BATTERY +12 V
GROUND
NO.
9
10
11
12
13
FUNCTION
Power Connector
REAR SP R (–)
REAR SP R (+)
FRONT SP R (–)
FRONT SP R (+)
FRONT SP L (–)
FRONT SP L (+)
REAR SP L (–)
REAR SP L (+)
The power connector does not come
along with the unit. If need, please
consult your dealer.
POWER +12 V ACC 14
CAN (+)
CAN ( )
15
16
–
Accessory Power(ACC)
(+12 V DC, negative ground
only)
(Red)
ACC
Ground Lead
(Connect to a clean, bare
metallic part of your vehicle)
(Black)
Ground
Battery
(Yellow)
Battery Lead
(Connect to vehicle battery)
(Orange)
Illumination
Illumination Lead
(Not used)
(Violet/Black)
(Gray/Black)
(white)
(Gray)
(Green)
(Violet)
(Green/Black)
(White/Black)
Left Speaker
(Front)
Right Speaker
(Front)
Left Speaker
(Rear)
Right Speaker
(Rear)
24
CQ-5251JU
Troubleshooting
If You Suspect Something Wrong
Check and take steps as described below.
Warning
¡ Do not use the unit in an irregular condition, for
example, without sound, or with smoke or a foul
smell, which can cause ignition or electric shock.
Immediately stop using the unit and consult your
dealer.
If the described suggestions do not solve the problem, it is
recommended to take the unit to your nearest authorized Panasonic
Servicenter. The product should be serviced only by qualified personnel.
Please refer the checking and the repair to professionals. Panasonic
shall not be liable for any accidents arising out of neglect of checking the
unit or your own repair after your checking.
Never take measures especially for those other than indicated by ital-
ic letters in “Possible Solution” described below because those are
too dangerous for users to handle themselves.
¡ Never try to repair the unit by yourself because it is
dangerous to do so.
Common
Possible cause
Possible solution
Problem
a
The power cord (battery, power and ground) is connected in the wrong way.
a Check the wiring.
No power to the unit
Fuse blows out.
a Eliminate the cause of fuse blowout and replace the fuse with new one.
Consult your dealer.
MUTE is set to ON.
a Set MUTE to OFF.
There is contact between the external mute lead and the chassis.
a Connect the external mute lead correctly. If the lead is unused, insulate it.
Sound is not generated.
The wiring of speaker lines are not correct, or a break or poor contact arises.
a Check the wiring in accordance with the wiring diagram.
There is an electromagnetic-wave generator such as a cellular phone near the unit or
its electrical lines.
a Keep an electromagnetic-wave generator such as a cellular phone away from
the unit and the wiring of the unit. In case that noise cannot be eliminated
due to the wiring harness of the car, consult your dealer.
Noise
The contact of the ground lead is poor.
a Make sure that the ground lead is connected to an unpainted part of the chas-
sis securely.
Alternator noise comes from the car.
a Change the wiring position of the ground lead.
a Mount a noise filter on the power supply.
Noise is made in step with
engine revolutions.
Some operations are not executable in particular modes such as menu mode.
a Read the operating instructions carefully and cancel the mode. If the unit is
Some operations are not
executable.
still out of order, consult your dealer.
25
CQ-5251JU
Troubleshooting (continued)
BALANCE/FADER setting is not appropriate.
a Readjust BALANCE/FADER.
No sound from speaker(s)
There is a break, a short circuit, poor contact or wrong wiring regarding the speaker
wiring.
a Check the speaker wiring.
The speaker channels are
reversed between right and
left.
The speaker wiring is confused between right and left.
a Perform the speaker wiring in accordance with the wiring diagram.
The sound field is not clear in
the stereo mode. Central
sound does not settled.
The plus and minus terminals at right and left channels of speakers are connected
reversely.
a Perform the speaker wiring in accordance with the wiring diagram.
The safety device works.
a Consult your dealer, or your nearest Panasonic Servicenter.
The power fails
unintentionally.
Radio
Antenna installation or wiring of antenna cable is faulty.
a Check whether the antenna mounting position and its wiring are correct. In
addition, check to see whether the antenna ground is securely connected to
the chassis.
Poor reception or noise
No power is supplied to the antenna amplifier (when using a film antenna, etc.).
a Check the wiring of the antenna battery lead.
The number of receivable stations is less than 6.
a Move to an area where receivable stations number is maximum, and try pre-
The number of auto preset
stations is less than 6.
setting.
The contact of the battery lead is poor, or the battery lead is not always powered.
a Make sure that the battery lead is connected securely, and preset stations
Preset stations cannot be
stored.
again.
26
CQ-5251JU
CD
The disc is inserted upside down.
a Insert a disc correctly.
No playback or disc ejected
There is a flaw or foreign material on the disc.
a Remove the foreign material, or use a flawless disc.
There is a flaw or foreign material on the disc.
a Remove the foreign material, or use a flawless disc.
Sound skipping or noise
The unit is not sufficiently secured.
a Secure the unit to the console box.
Sound skipping due to
vibration
The unit is tilted at over 30˚ in the front-to-end direction.
a Make the angle 30˚ or less.
Something such as a peeled label obstructs the disc coming out.
a Consult your dealer.
Disc unejectable
The microcontroller in the unit operates abnormally due to noise or other factors.
a Unplug the power cord and plug it again. In case the unit is still out of order,
consult your dealer.
MP3/WMA
The disc has unplayable formatted data.
a Check the file format.
No playback or disc ejected
The playability of some CD-Rs/RWs may depend on the combination of media,
recording software and recorder to be used even if these CD-Rs/RWs are playable
on other devices such as a PC.
The CD-R/RWs that are
playable on other devices are
not playable on this unit.
a Make CD-R/RWs in different combination of media, recording software and
recorder after referring to the description about the compressed audio player.
There is a flaw or foreign material on the disc.
a Remove the foreign material, or use a flawless disc.
Sound skipping or noise
Playing VBR (Variable Bit Rate) files may cause sound skipping.
a Play Non-VBR files.
Note: Refer to “Notes on MP3/WMA”. (a Page 32)
27
CQ-5251JU
Troubleshooting (continued)
USB
The USB device and USB extension cable are not connected correctly.
a Connect the USB device and USB extension cable correctly.
There is no music stored in a format that is supported on this unit.
a Check if there is any music data that can be played stored on the USB device.
Music is not played back even
if the USB device is
connected.
The file system of the USB device is not compatible with this unit.
a Use a USB device with a FAT12/16/32 file system.
The current consumption of the USB device exceeds 500 mA.
a Use a USB device with a current consumption lower than 500 mA.
A USB hub is connected.
a Do not use a USB hub.
“READING” is displayed but
music is not played back.
Too many recorded folders/files exist.
a When there are too many recorded folders/files, it may take a long time to
read all of the files.
Product Servicing
If the suggestions in the charts do not solve the problem, we recommend that you take it to your nearest authorized Panasonic
Servicenter. The product should be serviced only by a qualified technician.
28
CQ-5251JU
Error Display Messages
CD/MP3/WMA
Possible cause
Possible solution
a
Display
The disc is dirty, or is upside down.
a Check the disc.
The disc has scratches.
a Check the disc.
No operation by some cause.
a Unplug the power cord and plug it again. In case the unit is still out of order,
consult your dealer.
The player for some reason cannot read the file you are trying to play. (File recorded
in an unsupported file system, compression scheme, data format, file name exten-
sion, damaged data, etc.)
a Select a file that the player can read. Check the type of data recorded on the
disc. Create a new disc if necessary.
A WMA file can be copyrighted.
a The file protected by copyright is not playable.
No disc in the player.
a Insert disc into the disc slot.
29
CQ-5251JU
Error Display Messages (continued)
USB
A USB device is not connected or the connected device cannot be recognized.
a Use the type of USB memory that is suitable for this unit.
Your USB device has no playable file.
a Download playable file to your USB device.
A USB device the capacity of which exceeds the acceptable current was connected.
For some reason, an over-current was detected.
a Use a USB device that has a consumption current of less than 500 mA.
a Switch the source, and select the USB mode again.
a Check that the USB connector section is not dirty, and that there is no foreign
material.
No operation by some cause.
a Turn off the power and turn on the power again, or turn the key to the ACC OFF
position and turn the key to ACC ON position again. If this does not solve the
problem, unplug the power cord and plug it in again. In case the unit is still
out of order, consult your dealer.
The player for some reason cannot read the file you are trying to play. (File recorded
in an unsupported file system, compression scheme, data format, file name
extension, damaged data, etc.)
a Confirm that the USB extension cable is firmly connected, and reconnect if
not. Select a file that the player can read. Check the type of data stored in the
USB device. Format the USB device if necessary.
A WMA file can be copyrighted.
a The file protected by copyright is not playable.
30
CQ-5251JU
Maintenance
Cleaning this Unit
Your product is designed and manufactured to ensure a
minimum of maintenance. Use a dry soft cloth for routine
exterior cleaning. Never use benzine, thinner or other sol-
vents.
To remove stubborn stains
1 Moisten the soft cloth in dishwashing
soap diluted with water and wring well.
2 Wipe lightly. Go over the same surface
with a dry cloth.
Alcohol
Alcohol
Pesticide
Pesticide
Note:
¡Since there is the possibility of water drops getting
inside of the unit, do not directly apply cleanser to the
surface.
Wax
Thinner
Wax
Thinner
¡Do not scratch the screen with your nails or other hard
objects. The resulting scratches or marks will obscure
the images.
Benzine
Benzine
Caution
¡If water drops or similar wet substances get inside the
unit, it may cause a malfunction.
Caution
Replacing the Fuse
Use fuses of the same specified rating (15 A). Using different substitutes or fuses with higher rating, or connecting the product
directly without a fuse, could cause fire or damage to this unit.
If the replacement fuse fails, contact your nearest Panasonic Servicenter for service.
31
CQ-5251JU
Notes on MP3/WMA
Both of MP3 (MPEG Audio Layer-3) and WMA (Windows Media™ Audio) is a format for compressed audio file. These formats allow
users to save all the files contained in approximately 10 pieces of existing CDs on one piece of CD-R/RW.
Note: Each of encoding software is not included with this unit.
*MPEG Layer-3 audio coding technology licensed from Fraunhofer IIS and Thomson.
Cautions as to compressed audio files
Common
MP3
¡ High bit rate and high sampling frequency are recommended
for high quality sounds.
¡ It is recommended to set the bit rate to “128 kbps or more”
and “fixed”.
¡ Selecting VBR (Variable Bit Rate) is not recommended
because playing time is not displayed properly and sound
may be skipped.
¡ The playback sound quality differs depending on the encoding
circumstances. For details, refer to the user manual of your
own encoding software and writing software.
¡ Be sure to put an extension compatible with the format.
WMA
¡ It is recommended to set the bit rate to “64 kbps or more”
and “fixed”.
¡ Do not set the copy protect attribute on the WMA file to
enable this unit to play back.
Compression formats
Compression method
Bit rate
VBR
Yes
Yes
Yes
Yes
Sampling frequency
32, 44.1, 48 kHz
16, 22.05, 24 kHz
8, 11.025, 12 kHz
32, 44.1, 48 kHz
MPEG 1 audio layer 3 (MP3)
MPEG 2 audio layer 3 (MP3)
MPEG 2.5 audio layer 3 (MP3)
32 k – 320 kbps
8 k – 160 kbps
8 k – 160 kbps
Windows Media Audio Ver. 2, 7, 8, 9* 64 k – 160 kbps
* WMA 9 Professional/LossLess/Voice are not supported.
Caution
Never put an extension indicating compressed audio (such as “.mp3” and “.wma”) to files other than com-
pressed audio files. This may not only produce noise from the speaker damage, but also damage your
hearing.
Cautions as to the display of this unit
ASCII character set
A to Z, a to z, digits 0 to 9, and the following symbols:
(space) ! ” # $ % & ’ ( ) * + , - . / : ; < = > ? @ [ \ ] ˆ _ ` { | }
Display Information
¡ CD-TEXT
Disc title
Track title
¡ MP3 (ID3 tag)
Album name,
Title name/artist name
~
¡ MP3/WMA
Folder name,
File name
¡ WMA (WMA tag)
Album name,
Title name/artist name
Notes:
¡ Characters may be garbled depending on encoding software
to be used
¡ Undisplayable characters and symbols will be converted into
Displayable characters
¡ Displayable length of file name/folder name: within 30 charac-
ters. (Unicoded file and folder names are reduced by half in
the number of displayable characters.)
¡ Name files and folders in accordance with the standard of
each file system. Refer to the instructions of writing software
for details.
an asterisk ( ).
*
Windows Media, and the
Windows logo are trade-
marks or registered trade-
marks of Microsoft
¡ ASCII character set and special characters in each language
can be displayed.
Corporation in the United
States and/or other coun-
tries/regions.
32
CQ-5251JU
Cautions as to compressed audio files
Compressed audio file writing
Folder selection order/file playback order
■ CD-media/USB-device
¡ Do not save an audio file (CD-DA file) and a compressed
audio file on the same disc. Failure to observe this may
result in difficulty in playing.
Root Folder
1
(Root Directory)
¡ If compressed audio files formatted with two or more types
are saved on the same disc, each format shall have a dif-
ferent folder.
¡ Do not write files other than compressed audio files.
¡ Playability may depend on the combination of writing soft-
ware and disc writer to be used.
¡ This unit does not support the play list function.
¡ Write files in a disc-at-once manner unless otherwise needed.
¡ You can shorten the duration between data read and playback
by decreasing the quantity of files or folders, or the depth of
the hierarchy.
2
3
q
Folder Selection
4
e
r
1
8
In the order
–
w
File Selection
In the order
–
5
6
q
y
8
t
y
7
Tree 1
Tree 2
Tree 3
Tree 4
Tree 8
(Max.)
Supported file systems
■ CD-media
ISO 9660 Level 1/Level 2, Apple Extension to ISO 9660,
Joliet, Romeo
Note: Apple HFS, UDF 1.50, Mix CD and CD Extra are not
Maximum number of files/folders
¡ Maximum number of files
CD-media: 999
USB device: 65 535
¡ Maximum number of files in one folder
CD-media: 255
supported.
■ USB-device
File system is FAT12/16/32
USB device: 999
¡ Maximum depth of trees: 8
¡ Maximum number of folders: 255 (Root folder is included.)
Notes:
¡ This unit counts the number of folders irrespective of the
presence or absence of a compressed audio file.
¡ If the selected folder does not contain any compressed audio
file, the nearest compressed audio file in the order of playback
will play.
¡ Playback order of this unit may be different from that of other
compressed audio players even if the same disc is used
¡ “ROOT” appears when displaying the root folder name.
Common
Copyright
It is prohibited by copyright laws to copy, distribute and deliver
copyrighted materials such as music without the approval of
copyright holder except enjoying yourself personally.
No warranty
Above description complies with our investigations as of
December 2008. It has no warranty for reproducibility and
displayability of MP3/WMA.
33
CQ-5251JU
Notes on Discs
How to hold the disc
Disc insert
¡Do not touch the underside of the disc.
¡Do not scratch the disc.
¡Do not bend disc.
The surfaces of new discs tend to be slippery. Therefore,
when using such a disc for the first time, it may not load
satisfactorily even when it has been inserted into the unit.
At a time like this, insert the disc into the unit as far as it
will go until it is loaded properly.
¡When not in use, keep disc in the case.
Printed side
¡When inserting a disc into or ejecting and removing it
from the unit, insert it straight in or eject and remove
it straight out in parallel with the unit. Otherwise, the
disc may be scratched or marked in the process.
¡When inserting a disc, do not put one disc on another.
Failure to observe this may cause the discs to be
jammed.
Unusable discs
Do not use discs that fit any of the descriptions given
below. Using these discs may damage the discs or
cause the unit to malfunction.
Do not leave discs in the following places:
¡Direct sunlight
¡Special discs in a shape which is not round
¡Near car heaters
¡Dirty, dusty and damp areas
¡On seats and dashboards
¡Partly or wholly transparent disc
Disc cleaning
Use a dry, soft cloth to wipe from the center outward.
Do not attach any seals or labels to your discs.
Do not write on the disc label in a heavy pen or ballpoint
pen.
Wholly transparent disc*
Partly transparent disc
*Wholly semi-transparent disc may not be played back.
¡Discs with adhered labels, etc. on them
<Correct>
<Wrong>
Notes on CD-Rs/RWs
Disc with adhered stickers Labels created by a printer
or tape
¡You may have trouble playing back some CD-R/RW
discs recorded on CD recorders (CD-R/RW drives),
either due to their recording characteristics or dirt, fin-
gerprints, scratches, etc. on the disc surface.
¡CD-R/RW discs are less resistant to high temperatures
and high humidity than ordinary music CDs. Leaving
them inside a car for extended periods may damage and
make playback impossible.
Protective films or sheets
Disc accessories (stabiliz-
ers, etc.)
¡Damaged or deformed discs
¡The unit may not successfully playback a CD-R/RW that
was made by the combination of writing software, a CD
recorder (CD-R/RW drives) and a disc if they are incom-
patible with one another.
¡This player does not play CD-R/RW discs if the session
is not closed.
Shoddily made discs
Discs with cracks,
scratches or parts missing
¡Be sure to observe the handling instructions of CD-
R/RW discs.
¡This player does not play CD-R/RW discs which contain
other than CD-DA or MP3/WMA data.
Discs with burrs
Please remove the burrs
before use.
34
CQ-5251JU
Specifications
General
Power Supply:
12 V DC (11 V-16 V) test Voltage 14.4 V, Negative ground
Less than 2.5 A (CD mode, 0.5 W 4-speaker)
45 W x 4 channels at 400 Hz, Volume Control maximum
Current consumption:
Maximum Power Output:
Tone adjustment range:
Bass:
12 dB at 100 Hz
Treble:
Power Output:
12 dB at 10 kHz
18 W per channel into 4 ohms, 40 to 30 000 Hz at 3 % THD
Suitable Speaker Impedance:
Dimensions (W x H x D):
Weight:
4-8 Ω
15
1
178 mm x 50 mm x 155 mm {7” x 1 /16 ” x 6 /8”}
1.2 kg {2.65 lbs. 42.3 oz.}
USB connector
USB standard compatibility
File system
1.1/2.0 full speed
FAT12/16/32
Maximum supply current
Playable audio format
Recommended capacity
Front AUX input
500 mA
MP3/WMA
Less than 4 GB (1 partition)
Input impedance
Allowable external input
Connector
10 kΩ
2.0 V
3.5 mm ø Stereo mini pin
FM Stereo Radio
Frequency Range:
Useable Sensitivity:
50 dB Quieting Sensitivity:
Frequency Response:
Alternate Channel Selectivity:
Stereo Separation:
87.9 MHz –107.9 MHz
12 dBf (1.1 µV/ 75 Ω, S/N 30 dB)
17 dBf (1.8 µV/ 75 Ω)
30-15 000 Hz 3 dB
75 dB
35 dB at 1 kHz
Signal/Noise Ratio:
70 dB (Mono)
AM Radio
Frequency range:
Usable sensitivity:
530 kHz–1 710 kHz
28 dB/µV (S/N 20 dB)
Weather Band Radio
Frequency range:
Usable sensitivity:
Signal/Noise Ratio (40 dB/µV):
162.400 MHz –162.550 MHz
3 dB/µV (S/N 20 dB)
50 dB
CD Player
Sampling Frequency:
DA Converter:
Error Correction System:
Pick-Up Type:
Light Source:
Wavalength:
8 times oversampling
1 bit/4 DAC System
Spot size detection method
3-beam
Semiconductor laser
790 nm
Frequency Response:
Signal to Noise Ratio:
Wow and Flutter:
Channel Separation:
20 - 20,000 Hz ( 1 dB)
85 dB
Below measurable limits
75 dB
Above specifications comply with EIA standards.
Note: Specifications and the design are subject to modification
without notice due to improvements in technology.
Power Output:
16 W RMS x 4 Channels at 4 Ω and ≤ 1%
THD+N
Signal to Noise Ratio:
85 dBA (reference: 1 W into 4 Ω)
35
CQ-5251JU
© Panasonic Corporation 2009
YFM264C166CB
PTW0109-3059
Printed in China
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