Panasonic CY-PA2003U User manual

4 Channel Power Amplifier
Model: CY-PA4003U
2 Channel Power Amplifier
Model: CY-PA2003U
Digital Mono Amplifier
Model: CY-PAD1003U
Operating Instructions
Manuel d’instructions
Manual de Instrucciones
Please read these instructions (including “Limited Warranty” and “Customer Services Directory”) carefully before using
this product and keep this manual for future reference.
Prière de lire attentivement ces instructions (y compris la “Garantie limitée” et le “Répertoire des services à la clientèle”)
avant d’utiliser ce produit et conserver ce mode d’emploi pour s’y référer ultérieurement.

Lea con atención estas instrucciones antes de utilizar el producto y guarde este manual para poderlo consultar en el futuro.
(CY-PA4003U)

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Read the operating instructions for the unit and all other
components of your car audio system carefully before
using the system. They contain instructions about
how to use the system in a safe and effective manner.
Panasonic assumes no responsibility for any problems
resulting from failure to observe the instructions given
in this manual.
This manual uses pictographs to show you how to use
the product safely and to alert you to potential dangers
resulting from improper connections and operations.
The meaning of the pictographs are explained below.
It is important that you fully understand the meanings
of the pictographs in order to use this manual and the
system properly.
Safety Information
This pictograph intends to alert you to
the presence of important operating
instructions. Failure to heed the
instructions may result in severe injury
or death.
This pictograph intends to alert you to
the presence of important operating
instructions. Failure to heed the
instructions may result in injury or
material damage.
Warning
Caution
Observe the following warnings when using the
unit.
Use the proper power supply.
This
product is designed for operation with a negative
grounded 12 V DC battery system. Never operate this
product with other battery system, especially a 24 V DC
battery system.
Do not disassemble or modify the unit.
Do not disassemble, modify the unit or attempt to
repair the product yourself. If the product needs to
be repaired, consult your dealer or an authorised
Panasonic Servicenter.
Do not use the unit when it is out of order.
If the unit is out of order (no power, no sound) or in an
abnormal state (has foreign objects in it, is exposed to
water, is smoking, or smells), turn it off immediately
and consult your dealer.
Refer fuse replacement to qualified service
personnel.
When the fuse blows out, eliminate the cause and have
it replaced with the fuse prescribed for this unit by a
qualified service engineer. Incorrect replacement of
the fuse may lead to smoke, fire, and damage to the
product.
When replacing one fuse which has blown, replace
other fuses at the same time.
In some cases, fuses may deteriorate without failing.
Using different substitutes or fuses with higher ratings,
or connecting the unit directly without a fuse, could
cause fire or damage to the unit. If the replacement
fuse fails, contact your nearest Panasonic Servicenter
for service.
Warning
Observe the following warnings when installing.
Disconnect the lead from the negative () battery
terminal before installation.
Wiring and installation with the negative () battery
terminal connected may cause electrical shock and
injury due to a short circuit.
Some cars equipped with the electrical safety
system have specific procedures of battery terminal
disconnection.
FAILURE TO FOLLOW THE PROCEDURE MAY
LEAD TO THE UNINTENDED ACTIVATION OF THE
ELECTRICAL SAFETY SYSTEM RESULTING IN
DAMAGE TO THE VEHICLE AND PERSONAL INJURY
OR DEATH.
Never use safety-related components for
installation, grounding, and other such functions.
Do not use safety-related vehicle components (fuel
tank, brake, suspension, steering wheel, pedals
airbags, etc.) for wiring or fixing the product or its
accessories.
Check for piping, gasoline tank, electric wiring, and
other items before installing the product.
If you need to open a hole in the vehicle chassis to
attach or wire the product, first check where the wire
harness, gasoline tank, and electric wiring are located.
Then open the hole from outside if possible.
After installation and wiring, you should check the
normal operation of other electrical equipment.
The continuation of their using in abnormal conditions
may cause fire, electrical shock or a traffic accident.
In the case of installation to an airbag-equipped
car, confirm warnings and cautions of the vehicle
manufacturer before installation.
Make sure the leads do not interfere with driving or
getting in and out of the vehicle.
Failure to heed this caution may result in an accident
and/or injury.
Warning
Observe the following cautions when using this
unit.
Turn off the power supply before changing the
switch setting.
Keep the sound volume at an appropriate level.
Keep the volume level low enough to be aware of road
and traffic conditions while driving.
This unit is designed for use exclusively in
automobiles.
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
excessive 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.
Stop to use the unit when the red indicator
(PROTECT) lights up.
If the red indicator lights up, this unit will
automatically shut down. Confirm the speaker and
other audio system’s wiring.
Do not touch the heat dissipation region of the
amplifier.
If this unit is operated at a high output continuously,
the upper side of the unit will get very hot. Do not
touch it nor place anything on top of the unit.
Contact your local dealer for information about
battery capacity. (If there is not enough battery
capacity, increase the number of batteries.)
Depending on the way you use this unit, (using at
high volume for extended periods, increasing the
number of amplifiers etc. ) there may be insufficient
battery capacity. There is a danger that the battery will
run flat, or other electronic parts may stop operating.
Do not knock anything against this unit when
loading or unloading objects from the trunk.
Doing so will cause damage to this unit.
Caution
This unit cannot be used alone.
This unit is a power amplifier for use with Panasonic
car audio products and speakers.
For more details about safety information, refer to
the operating instructions for the connected devices.
Please follow the laws and regulations
of your province or country for
installation of the unit.
For power connection, use the optional power cord
specially designed for use with Panasonic car-audio/
AV system.
Power cord kid (option): CA-PAC75

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Safety Information (continued)
Observe the following cautions when installing.
Refer wiring and installation to qualified service
personnel.
Installation of this unit requires special skills and
experience. 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.
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 malfunction or fire.
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.
We strongly recommended you to wear gloves for
installation work to protect yourself from injuries.
Failure to heed this caution may result in an accident
and/or injury.
Be sure to grip both sides of this unit securely before
attempting to move it.
Since this unit is quite heavy, the unit may fall down
and this can lead to an accident or injury.
Cover the unused terminals with insulating tape to
prevent them from short circuiting.
When an extension lead is used, it should be as
thick and short as possible; connect it firmly with
insulating tape.
Wire breaks and short circuits can cause electrical
shock or fire.
Caution
Use the spacer included when installing the unit so
that the fan and air hole on the base side of the unit
are not covered. <CY-PAD1003U>
If the fan and air hole on the base side of the unit are
covered, the unit will become extremely hot and may
fail.
Caution for mounting the unit:
Never mount the unit in any of the following locations
to avoid damage due to overheating;
• Near the heater port.
• Places like the dashboard or rear deck, where it may
be exposed to direct sunlight.
Do not mount the unit near the door, where it could be
exposed to rain.
Keep a safe distance between the unit and other
electronic equipment.
When a short circuit occurs, such as in the speaker
output terminal, etc. the overload protection circuit will
operate. This circuit protects the power amplifier from
further damage when a short circuit occurs. Operation
will temporarily stop. In this case, check the cause of
the short-circuit and if the problem is fixed, normal
operation will resume.
Since the power amplifier has a very large output, the
unit should be installed in the trunk of your car.
Do not install this unit under a carpet, otherwise the
unit may fail because of immature heat dissipation.
In case more than one power amplifier is used, make
sure to employ the power cord and the fuse having
the current capacity larger than the total current
corresponding to the maximum consumption powers
of all the amplifiers.
Caution for the power cord (option):
Follow an expert’s instruction for the use of the cord
separately sold.
For the power, make sure to use the battery lead (yellow)
separately sold and specially designed for Panasonic
car-audio/AV system, and to connect directly to the car
battery. Use the cord having the fuse capacity larger
than that of this unit. Connect the power cord and other
cords corresponding to the power supply after all the
connections to the speaker are completed.
Keep the battery lead (yellow) away from the speaker
cord.
Make sure to use the ground lead (black) separately
sold and specially designed for car audio system, and
to connect it to the metal portion of the car chassis.
Wire the battery lead (yellow), the ground lead (black),
the speaker cords, and this unit with as much distance
as possible from the antenna, the antenna cords and
the car stereo (car radio).
If the ground wire is common to both left/right and
front/rear speaker wirings, this unit cannot be used.
Always use the independent lead wire for the speakers
to be used. In this case, redo the wiring.
Caution for the speaker cord (option):
The speaker cords and the power amplifier unit should
be kept away from the antenna and antenna extension
cord.
Do not directly ground the speaker cords; do not share
the negative leads of multiple speakers.
When using the RCA cords, keep away from the
speaker cords.
Caution for the speaker (option):
Use speakers with a suitable maximum input.
In case of 4-channel/3-channel connection
<CY-PA4003U>:
Use speakers with the impedance of 28 .
In case of 2-channel/stereo connection:
Use speakers with the impedance of 48 .

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CANADA
WARRANTY SERVICE
FOR PRODUCT OPERATION ASSISTANCE, please contact:
Our Customer Care Centre:
Telephone #: [phone]
1-800 #: 1-800-561-5505
Fax #: [phone]
Email link: “Contact Us” on www.panasonic.ca
FOR PRODUCT REPAIRS, please locate your nearest
Authorized Servicentre at www.panasonic.ca:
Link : “Servicentres™ locator” under “Customer support”
Panasonic Factory Service:
Vancouver
Panasonic Canada Inc.
12111 Riverside Way
Richmond, BC V6W 1K8
Tel: [phone]
Fax: [phone]
IF YOU SHIP THE PRODUCT TO A SERVICENTRE
Carefully pack and send prepaid, adequately insured and
preferably in the original carton.
Include details of the defect claimed, and proof of date of
original purchase.
Customer Services Directory
U.S.A.
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:
http://www.panasonic.com/support
or, contact us via the web at:
http://www.panasonic.com/contactinfo
You may also contact us directly at:
1-800-211-PANA (7262),
Monday-Friday 9 am-9 pm;
Saturday-Sunday 10 am-7 pm, EST.
Limited Warranty
ALL EXPRESS AND IMPLIED WARRANTIES, INCLUDING THE WARRANTY
OF MERCHANTABILITY, ARE LIMITED TO THE PERIOD OF THE LIMITED
WARRANTY.
Some states do not allow the exclusion or limitation of incidental or
consequential 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 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 the warrantor’s Consumer Affairs Department at the addresses of
the warrantor.
PARTS AND SERVICE WHICH ARE NOT COVERED BY THIS LIMITED
WARRANTY ARE YOUR RESPONSIBILITY.
Customer’s Record
Model
No.
Serial
No.
Dealer’s
No.
Code
No.
Dealer’s
Address
Date of
Purchase
CANADA
Panasonic Canada Inc.
5770 Ambler Drive, Mississauga Ontario L4W 2T3
PANASONIC PRODUCT LIMITED WARRANTY
Panasonic Canada Inc. warrants this product to be free from defects in
materials and workmanship and agrees to remedy any such defect for a
period as stated below from the date of original purchase.
CAR AUDIO PRODUCT – ONE (1) YEAR, PARTS AND LABOUR
(The labour to install or remove the product is not warranted)
LIMITATIONS AND EXCLUSIONS
This warranty does not apply to products purchased outside Canada or to
any product which has been improperly installed, subjected to usage for
which the product was not designed, misused or abused, damaged during
shipping, or which has been altered or repaired in any way that affects the
reliability or detracts from the performance, nor does it cover any product
which is used commercially. Dry cell batteries are also excluded from
coverage under this warranty.
This warranty is extended to the original end user purchaser only. A
purchase receipt or other proof of the original purchase date is required
before warranty service is performed.
THIS EXPRESS, LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
IN NO EVENT WILL PANASONIC CANADA INC. BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES.
In certain instances, some jurisdictions do not allow the exclusion or
limitation of incidental or consequential damages, or the exclusion of
implied warranties, so the above limitations and exclusions may not be
applicable.
U.S.A.
PANASONIC CONSUMER ELECTRONICS COMPANY,
DIVISION OF PANASONIC CORPORATION OF AMERICA
One Panasonic Way, Secaucus, New Jersey 07094
PANASONIC SALES COMPANY,
DIVISION OF PANASONIC PUERTO RICO, INC.
Ave. 65 de infanteria, Km. 9.5, San Gabriel Industrial Park
Carolina, Puerto Rico 00985
PANASONIC AUTO PRODUCTS LIMITED WARRANTY
LIMITED WARRANTY COVERAGE
If your product does not work properly because of a 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.
Categories Parts Labor
Audio Components (except items listed
below)
One (1) Year One (1) Year
MXE Series Audio Components (except items
listed below)
Two (2) Years Two (2) Years
Speakers One (1) Year Not Applicable
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 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, call 1-800-211-PANA
(7262) or visit
Panasonic Web Site: http://www.panasonic.com
For assistance in Puerto Rico, call Panasonic Sales Company
(787)-750-4300 or fax [phone].
LIMITED WARRANTY LIMITS AND EXCLUSIONS
This warranty ONLY COVERS failures due to defects in materials and
workmanship, 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 warrantor, failures which result from accident, misuse, abuse,
neglect, 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
form Factory Servicenter or other authorized service centers, or damage
that is attributable 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 having someone remove or re-install an installed unit if applicable,
travel to and from the sevicer, and loss of media, date or other memory
contents. The items listed are not exclusive, but are for illustration only.)
For hearing or speech impaired TTY users,
TTY: 1-877-833-8855
Accessory Purchases:
Purchase Parts, Accessories and Instruction Books online
for all Panasonic Products by visiting our Web Site at:
http://www.pasc.panasonic.com
or, send your request by E-mail to:
[email protected]
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.)
Panasonic Services Company
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: 1-886-605-1277
Service in Puerto Rico
Panasonic Puerto Rico, Inc.
Panasonic Sales Company
Factory Servicenter:
Ave. 65 de infantería, Km. 9.5, San Gabriel Industrial Park,
Carolina, Puerto Rico 00985
Phone [phone], Fax [phone]
Toronto
Panasonic Canada Inc.
5770 Ambler Drive
Mississauga, ON L4W 2T3
Tel: [phone]
Fax: [phone]

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Contents
English 2
Français 36
Español 70
Safety Information..................... 2
Customer Services Directory......... 6
Limited Warranty ...................... 7
Before Reading These Instructions ... 8
Before Use .............................. 9
Features................................ 10
Location of Controls .................. 12
Speaker System Setting
<CY-PA4003U> .................... 16
Speaker System Setting
<CY-PA2003U> .................... 19
Speaker System Setting
<CY-PAD1003U>................... 20
Note for Bridge Speaker Connection.... 21
Installation............................. 22
Wiring .................................. 24
Wiring <CY-PA4003U> ............... 26
RCA......................................................... 26
SPEAKERS INPUT ................................... 27
Wiring <CY-PA2003U> ............... 28
RCA......................................................... 28
SPEAKERS INPUT ................................... 29
Wiring <CY-PAD1003U> ............. 30
RCA......................................................... 30
SPEAKERS INPUT ................................... 31
Troubleshooting....................... 32
Maintenance........................... 34
Specifications ......................... 34
Check the connections according to the manual of
the device you have connected, and switch on the
connected device’s power supply.
Adjust the GAIN to a satisfactory volume. (page 13, 14)
Refer to individual instruction and installation manuals
for each device for detailed installation and wiring.
Before UseBefore Reading These Instructions
Differences among 3 Models
This Operating instruction manual is for 3 models CY-PA4003U, CY-PA2003U and CY-PAD1003U. All illustrations
throughout this manual represent model CY-PA4003U unless otherwise specified. The following table describes the
differences among 3 models.
Models
Features
CY-PA4003U CY-PA2003U CY-PAD1003U
Speaker connection 4/3/2-channel speaker 2/1-channel speaker 1-channel speaker
Maximum power output 250 W4 channel 600 W2 channel 1 100 W1 channel
Input channel 4-channel 2-channel 2-channel
4CH/2CH input selection Yes No No
HPF (High Pass Filter) Yes Yes No
Subsonic filter switch No No Yes
Fuse 35 A2 25 A3 25 A3
Speaker input connector 2 (1 for front speaker, 1 for
rear speaker)
1 (for left/right speaker) 1 (for left/right speaker)
Panasonic welcomes you to our constantly growing
family of electronic products owners. We endeavor to give
you the advantages of precise electronic and mechanical
engineering, manufactured with carefully selected
components, and assembled by people who are proud
of the reputation their work has built for our company.
We know this product will bring you many hours of
enjoyments, and after you discover the quality, value and
reliability we have built into it, you too will be proud to be
a member of our family.
CY-PA4003U
4 Channel Power Amplifier
CY-PA2003U
2 Channel Power Amplifier
CY-PAD1003U
Digital Mono Amplifier
Accessories
Item Diagram Qty.
Operating Instructions
(YEFM285830A)
1
Owners Information Card 1
Installation Hardware (screws, cords, etc.) (page 22)
Note:
The number in parenthesis underneath each accessory
part name is the part number for maintenance and
service.
Accessories and their parts numbers are subject to
modification without prior notice due to improvements.