4 Channel Power Amplifier
Model:
Model:
CY-PA4003W
2 Channel Power Amplifier
CY-PA2003W
Digital Mono Amplifier
(CY-PA4003W)
Model:
CY-PAD1003W
Operating Instructions
Please read these instructions carefully before using this product and keep this manual for future reference.
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Safety Information
(continued)
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-PAD1003W>
Caution for the power cord (option):
Follow an expert’s instruction for the use of the cord
separately sold.
Observe the following cautions when installing.
Refer wiring and installation to qualified service
personnel.
If the fan and air hole on the base side of the unit are
covered, the unit will become extremely hot and may
fail.
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).
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.
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.
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.
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 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.
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.
Caution for the speaker (option):
Use speakers with a suitable maximum input.
In case of 4-channel/3-channel connection
<CY-PA4003W>:
Use speakers with the impedance of 28 .
In case of 2-channel/stereo connection:
Use speakers with the impedance of 48 .
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.
CY-PA4003W/PA2003W/PAD1003W
CY-PA4003W/PA2003W/PAD1003W
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Before Reading These Instructions
Before Use
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 11, 12)
Refer to individual instruction and installation manuals
for each device for detailed installation and wiring.
Contents
English
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
2
CY-PA4003W
4 Channel Power Amplifier
CY-PA2003W
2 Channel Power Amplifier
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-PAD1003W
Digital Mono Amplifier
Differences among 3 Models
This Operating instruction manual is for 3 models CY-PA4003W, CY-PA2003W and CY-PAD1003W. All illustrations
throughout this manual represent model CY-PA4003W unless otherwise specified. The following table describes the
differences among 3 models.
Safety Information..................... 2
Before Reading These Instructions ... 6
Before Use .............................. 7
Features................................. 8
Location of Controls .................. 10
Models CY-PA4003W
CY-PA2003W
CY-PAD1003W
Features
Speaker connection
4/3/2-channel speaker
2/1-channel speaker
1-channel speaker
Maximum power output
Input channel
250 W4 channel
600 W2 channel
1 100 W1 channel
Speaker System Setting
<CY-PA4003W>.................... 14
Speaker System Setting
<CY-PA2003W>.................... 17
Speaker System Setting
<CY-PAD1003W>.................. 18
Note for Bridge Speaker Connection.... 19
4-channel
Yes
2-channel
2-channel
4CH/2CH input selection
HPF (High Pass Filter)
Subsonic filter switch
Fuse
No
No
Yes
Yes
No
No
No
Yes
35 A2
25 A3
25 A3
Installation............................. 20
Wiring .................................. 22
Speaker input connector
2 (1 for front speaker, 1 for
rear speaker)
1 (for left/right speaker)
1 (for left/right speaker)
Wiring <CY-PA4003W> .............. 24
RCA..........................................................24
SPEAKERS INPUT....................................25
Wiring <CY-PA2003W> .............. 26
RCA..........................................................26
SPEAKERS INPUT....................................27
Wiring <CY-PAD1003W>............. 28
RCA..........................................................28
SPEAKERS INPUT....................................29
Accessories
Note:
Item
Diagram
Qty.
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.
Operating Instructions
(YEFM285832A)
1
Installation Hardware (screws, cords, etc.) (page 20)
CY-PA4003W/PA2003W/PAD1003W
Troubleshooting....................... 30
Maintenance........................... 32
Specifications ......................... 32
CY-PA4003W/PA2003W/PAD1003W
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Features
<Common features of 3 models>
5.1-channel Surround System (Combination with other Panasonic car audio products)
You can enjoy a powerful 5.1-channel surround system by connecting Head Unit (CQ-VD7003W, CQ-VD6503W, option),
4-channel amplifier (CY-PA4003W) and monaural amplifier for subwoofer (CY-PAD1003W).
For more details, refer to the operating instructions for the connected devices.
CY-PA4003W
250 W 4 channel maximum power output
High Level Speaker Input connection:
The high-quality playback sound is produced when
connecting the unit to the speaker output lead of the Head
Unit.
Total 1 000 W maximum power output
Use it when the Head Unit is not equipped with the
terminal for the RCA output lead.
An amplifier connected to the 4-, 3- or
2-channel speaker
4 Channel Power Amplifier:
CY-PA4003W
Bass boost control system:
Head Unit
(In-dash color LCD monitor/
DVD player):
CQ-VD7003W, option
2CH/4CH input selection:
The bass boost circuit is employed to play back the deep
bass on the front and rear speakers.
The 4-channel speaker output is available under the
2-channel speaker input setting.
Digital Mono Amplifier (for
subwoofer):
CY-PAD1003W
Crossover Frequency Control:
The frequency band in the treble and the bass, which
are played back on the front and rear speakers, can be
adjusted.
or
Low-Pass Filter for subwoofer, High Pass
CQ-VD6503W, option
Filter:
Subwoofer: CJ-SW3003N, option
Switchover of LPF/OFF/HPF is available.
Center speaker:
EAB-CF2, option
RCA output terminals:
Equipped with RCA output for adding a power amplifier.
Surround Speakers:
Front speakers:
CJ-DA1733N, option
CY-PA2003W
600 W 2 channel maximum power output
CJ-DA6943N, option
Total 1 200 W maximum power output
Low-Pass Filter for subwoofer, High Pass
Filter:
Switchover of LPF/OFF/HPF is available.
CY-PAD1003W
1 100 W 1 channel maximum power output
Low-Pass Filter for subwoofer:
Switchover of LPF/OFF is available.
CY-PA4003W/PA2003W/PAD1003W
CY-PA4003W/PA2003W/PAD1003W
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Location of Controls
<CY-PA4003W>
For channel A (except )
For channel B (except )
Crossover filter switch (LPF, OFF, HPF)
BASS BOOST control knob
Fuses (FUSES) (35 A2)
Caution
LPF (Low Pass Filter): LPF cuts off the treble, and
outputs only a low-pitched sound for the subwoofer.
OFF: All frequency bands are output without filtering.
Select when a subwoofer is not connected.
HPF (High Pass Filter): Sound is output from the
speakers for a high-pitched sound and midrange
sound after deleting the low-pitched sound.
Turn this knob to boost the 45 Hz frequency sound.
It enhances the low-pitched sound.
For some speakers, the sound may be distorted
because of the excessive power input to them. In that
case, turn down the bass level until the distortion
stops.
Turn off the power supply before changing the
switch setting.
Upper cover
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.
Channel B speaker output connector (SPEAKERS)
Left Side ()
Left Side ()
Right Side ()
Right Side ()
Setting range: 0 dB to 15 dB
Crossover frequency control knob (FREQUENCY)
The frequency band of the treble and the bass played
back on the front and rear speakers is adjusted.
Setting range: 50 Hz to 250 Hz
GAIN control knob
In some instances, the acoustical output from each
speaker may not be balanced properly depending upon
the type of speakers or Head Unit being used.
Up: Turn up the knob when the sound volume is not
satisfactory even though the volume of the Head
Unit is increased.
Battery connector (12 V)
High level speaker input terminal (SPEAKERS
To the car battery, continuous 12 V DC.
INPUT)
When connecting Head Unit without RCA output
terminals.
Amplifier control connector (CONT)
Speaker output terminals (For CH A)
Equipped with RCA output for adding a power
amplifier.
To the head unit’s external amplifier control power
lead or to the car battery, continuous 12 V DC.
Power/protection indicator (PWR/PROTECT)
Lights green: When the Head Unit power is on.
Lights red:
Down: Turn down the knob when the sound is
distorted.
It is not a Speaker input terminal.
Ground connector (GND)
To a clean, bare metallic part of the car chassis.
• When the speaker cords are short-circuited.
• When the speaker output line comes contact with the
car grounding wire.
• When this unit fails and the speaker output generates
a DC power source.
• When the amplifier internally creates a high-pitched
sound.
• When the connection of the Head Unit or this unit is
not completed.
Channel A input terminals (LEFT, RIGHT)
Input select switch (LINE, SPEAKERS)
LINE: When using RCA INPUT connectors.
SPEAKERS: When using SPEAKER INPUT connectors.
Channel B input terminals (LEFT, RIGHT)
The upper cover can be reinstalled along with the
reinstallation of the main body of the unit, such that
the cover is aligned with other devices for neat and
better look.
Speaker channel select switch (4CH, 2CH)
4CH: When connecting Head Unit with 2 preout leads.
2CH: When connecting Head Unit with 1 preout lead.
Channel A speaker output connector (SPEAKERS)
Left Side ()
Left Side ()
Right Side ()
Right Side ()
How to dismount:
Unscrew the terminal screw
with Allen wrench .
Note:
Do not insert anything between the upper cover and
this unit. Doing so will cause damage to this unit.
CY-PA4003W/PA2003W/PAD1003W
CY-PA4003W/PA2003W/PAD1003W
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Location of Controls
(continued)
<CY-PA2003W>
<CY-PA2003W>
<CY-PAD1003W>
<CY-PAD1003W>
GAIN control knob
Crossover frequency control knob (FREQUENCY)
The frequency band of the treble and the bass played
back on the front and rear speakers is adjusted.
Setting range: 50 Hz to 250 Hz
Battery connector (12 V)
Caution
In some instances, the acoustical output from each
speaker may not be balanced properly depending upon
the type of speakers or Head Unit being used.
Up: Turn up the knob when the sound volume is not
satisfactory even though the volume of the Head
Unit is increased.
To the car battery, continuous 12 V DC.
Turn off the power supply before changing the
switch setting.
Amplifier control connector (CONT)
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.
To the head unit’s external amplifier control power
lead or to the car battery, continuous 12 V DC.
Power/protection indicator (PWR/PROTECT)
Lights green: When the Head Unit power is on.
Lights red:
Down: Turn down the knob when the sound is
distorted.
Ground connector (GND)
• When the speaker cords are short-circuited.
• When the speaker output line comes contact with the
car grounding wire.
To a clean, bare metallic part of the car chassis.
BASS BOOST control knob
<CY-PAD1003W>
Turn this knob to boost the 45 Hz frequency sound.
It enhances the low-pitched sound.
For some speakers, the sound may be distorted
because of the excessive power input to them. In that
case, turn down the bass level until the distortion
stops.
• When this unit fails and the speaker output generates
a DC power source.
• When the amplifier internally creates a high-pitched
sound.
• When the connection of the Head Unit or this unit is
not completed.
Subsonic filter switch (OFF, ON)
Switch ON to remove noise from subwoofer.
High level speaker input terminal (SPEAKERS
INPUT)
When connecting Head Unit without RCA output
terminals.
The upper cover can be reinstalled along with the
reinstallation of the main body of the unit, such that
the cover is aligned with other devices for neat and
better look.
Speaker output terminals
Equipped with RCA output for adding a power
amplifier.
Setting range: 0 dB to 15 dB
Speaker output connector
Crossover filter switch (LPF, OFF, HPF)
LPF (Low Pass Filter): LPF cuts off the treble, and
outputs only a low-pitched sound for the subwoofer.
OFF: All frequency bands are output without filtering.
Select when a subwoofer is not connected.
<CY-PA2003W>
<CY-PA2003W>
Left Side ()
Left Side ()
Right Side ()
Right Side ()
<CY-PAD1003W>
SP ()
SP ()
SP ()
SP ()
It is not a Speaker input terminal.
How to dismount:
Unscrew the terminal screw
with Allen wrench .
Speaker input terminals (LEFT, RIGHT)
Input select switch (LINE, SPEAKERS)
LINE: When using RCA INPUT connectors.
SPEAKERS: When using SPEAKER INPUT connectors.
HPF (High Pass Filter): Sound is output from the
speakers for a high-pitched sound and midrange
sound after deleting the low-pitched sound.
Fuses (FUSES) (25 A3)
Note:
Do not insert anything between the upper cover and
this unit. Doing so will cause damage to this unit.
Upper cover
CY-PA4003W/PA2003W/PAD1003W
CY-PA4003W/PA2003W/PAD1003W
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Speaker System Setting <CY-PA4003W>
4CH Input
2-channel Speaker System (Monaural)
4-channel Speaker System
INPUT CH A INPUT CH B
INPUT CH A INPUT CH B
Switch to 4CH.
Switch to 4CH.
Speaker output CH A
Right
(min. 2 )
Left
(min. 2 )
LeftRight
(min. 4 )
RCA cord (option)
(from Head Unit output terminal)
RCA cord (option)
(from Head Unit output terminal)
Speaker output CH A
Subwoofer
(Bridge connection)
(Monaural)
Subwoofer
(Bridge connection)
(Monaural)
Speaker output CH B
Left (min. 2 )
Speaker output CH B
Right (min. 2 )
LeftRight (min. 4 )
Special Application
Example: Connecting left channel audio output to
CH A and right channel audio output to CH B.
2-channel Speaker System (Stereo)
3-channel Speaker System
Input the front right channel (red)/rear right
channel (red).
INPUT CH A INPUT CH B
Input the front left channel
(white)/rear left channel
(white).
Switch to 4CH.
Switch to 4CH.
Speaker output CH A
Left
Left
(min. 4 )
RCA cord (option)
(from Head Unit output terminal)
Right
(min. 2 )
RCA cord (option)
(from Head Unit output terminal)
(min. 2 )
Speaker output CH A
(Outputs left channel audio.)
(Bridge connection)
Note:
(Bridge connection)
When the Head Unit is connected to the RCA cord, note
that the RCA white and red leads differ in color from the
unit terminals.
Connect both front left/rear left and front right/rear
right inputs. Using a single input connection halves the
output.
Speaker output CH B
(Outputs right channel audio.)
Subwoofer
(Bridge connection)
(Monaural)
Speaker output CH B
Right
(min. 4 )
LeftRight
(min. 4 )
CY-PA4003W/PA2003W/PAD1003W
CY-PA4003W/PA2003W/PAD1003W
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Speaker System Setting <CY-PA4003W>
(continued)
Speaker System Setting <CY-PA2003W>
2-channel Speaker System (Stereo)
2CH Input
4-channel Speaker System
Special Application
Example: If the Head Unit only has a single pre-out,
connect it to this unit for 4-channel audio output.
INPUT
Input the left channel (white).
Input the right channel (red).
Switch to 2CH.
RCA cord (option)
(from Head Unit output terminal)
Speaker output CH A
Not used.
Right
(min. 2 )
Left
(min. 2 )
RCA cord (option)
(from Head Unit output terminal)
Note:
The fader control is ineffective.
The speaker outputs A and B are at the same
level.
The 3-channel speaker output is not allowed
with the 2-channel input connection.
When the Head Unit is connected to the RCA
cord, note that the RCA white and red leads
differ in color from the unit terminals.
Speaker output
Left
(min. 2 )
Right
(min. 2 )
Speaker output CH B
Left (min. 2 )
Right (min. 2 )
Special Application
Example: If the Head Unit only has a single pre-out,
connect it to this unit for 2-channel audio output.
2-channel Speaker System
1-channel Speaker System (Monaural)
INPUT
Input the left channel (white).
Input the right channel (red).
Switch to 2CH.
RCA cord (option)
(from Head Unit output terminal)
Not used.
Speaker output CH A
RCA cord (option)
(from Head Unit output terminal)
Left (min. 4 )
(Bridge connection)
Note:
This is not a monaural output.
The 3-channel speaker output is not allowed
with the 2-channel input connection.
When the Head Unit is connected to the RCA
cord, note that the RCA white and red leads
differ in color from the unit terminals.
Subwoofer
(Bridge connection)
(Monaural)
Speaker output CH B
Speaker output
LeftRight
(min. 4 )
(Bridge connection)
Right (min. 4 )
CY-PA4003W/PA2003W/PAD1003W
CY-PA4003W/PA2003W/PAD1003W
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Speaker System Setting <CY-PAD1003W>
Note for Bridge Speaker Connection
In case of 2-channel/stereo connection:
2-channel (Monaural) Speaker System
In case of multiple speakers to be mounted in a bridge
connection, confirm the summed impedance to be 48
in order to avoid ignition, smoking, or damage.
INPUT
Total impedance: 4
Speaker: 2
Total impedance: 4
RCA cord (option)
(from Head Unit output terminal)
Speaker: 8
Speaker: 8
Speaker: 2
Right
(min. 4 )
Speaker output
Do not make a connection in such a manner.
Total impedance: 2
Speaker: 4
Speaker: 4
Note:
Connect the right and left RCA output terminals of the
Head Unit to the input terminals of this unit.
Speaker output
Left
(min. 4 )
<CY-PA4003W>
1-channel (Monaural) Speaker System
Note for RCA Input Connection:
INPUT
Selectively assign each front and rear output to either
RCA INPUT A or B, in accordance with the system from
which the output is coming.
Switch to ON.
In case of a single line coming from the RCA output of
Head Unit, connect the line to RCA INPUT A.
Do not connect it to RCA INPUT B.
RCA cord (option)
(from Head Unit output terminal)
(min. 2 )
Subwoofer (Monaural)
Speaker output
CY-PA4003W/PA2003W/PAD1003W
CY-PA4003W/PA2003W/PAD1003W
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Installation
Installation Hardware
(For Installation)
Preparation
Mounting the Unit
Caution
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.
You run the risk of interfering with the mounting or
causing damage by drilling into the gas tank, a wiring
harness, or other component.
Install the unit to a metallic portion of the car
Since the power amplifier has a very large output, the
unit should be installed in the boot of your car.
Caution
No.
Item
Diagram
Qty.
Please follow the laws and regulations of your
province or country for installation of the unit.
We strongly recommended you to wear gloves for
installation work to protect yourself from injuries.
Be sure to grip both sides of this unit securely
before attempting to move it.
Tapping Screw
4
(5 mm20 mm)
<CY-PA4003W, CY-PA2003W>
Tapping Screw
Plain Washer
(5 mm)
4
1
(5 mm20 mm)
Plain Washer (5 mm)
Since this unit is quite heavy, the unit may fall down
and this can lead to an accident or injury.
Allen wrench
Keep a safe distance between the unit and other
electronic equipment.
Drill four holes
3.5 mm
Disconnect the cable from the negative () battery
terminal (see caution below).
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.
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.
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-PAD1003W>
Installation Hardware
(For Wiring)
321 mm
178 mm
Metallic panel
(thickness: more
than 15 mm)
No.
Item
Diagram
Qty.
Speaker input
connector
2
<CY-PAD1003W>
Terminal cover
for short-circuit
prevention
2
Caution
Tapping Screw
If your car 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.
(5 mm40 mm)
Plain Washer (5 mm)
CY-PA4003W: 2 (1 for front speaker, 1 for rear speaker)
Before attempting installation of this electronic
component contact your car 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.
CY-PA2003W, CY-PAD1003W: 1 (for left/right speaker)
If the fan and air hole on the base side of the unit are
covered, the unit will become extremely hot and may
fail.
Spacer
<CY-PAD1003W> Installation
(For Installation)
Hardware
No.
Item
Diagram
Qty.
291 mm
Before Mounting the Unit
178 mm
1 Make the temporary connections.
2 Confirm the proper operation of the unit.
Confirm the proper connection and setting, and no
blowout of the fuses.
Spacer
4
Drill four holes
3.5 mm
Metallic panel
Tapping Screw
4
(thickness: more than 15 mm)
3 Confirm after the installation of the unit that the spare
tires, the jack, the tools, etc. can be picked up without
obstruction.
Note:
(5 mm40 mm)
If you wish to install the unit without using the spacer
included, drill holes in the Metallic panel etc so that the
fan and air holes on the base side of the unit are not
covered.
Note:
For power connection, use the optional power cord
specially designed for use with Panasonic car-audio/
AV system.
Base side of CY-PAD1003W:
Use only the supplied screws for installation. If parts
are missing please consult with your Panasonic dealer
for advice.
Air hole
Fan
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Wiring
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
Speaker Output Terminal Screw Connection
This unit is designed for use in a car having a 12 V
negative ground battery system.
1 Using a nipper or cutter, expose approximately 10 mm
long of the core of the speaker cord and twist its end.
2 Attach the speaker terminal onto the speaker cord.
3 Unscrew the terminal screw.
Be sure to insulate any exposed wires to prevent short
circuiting with the car chassis. Bundle all cables, and
prevent cable terminals from touching any metal parts.
Note that if your car has a driving computer or a
navigation computer, disconnecting the cable from the
battery may clear the memory.
(10 mm)
4 Insert the screw into the terminal of the cord. Securely
fasten the screw.
Run the cords avoiding the spots where the
temperature can be extremely high.
Speaker terminal
Continuous use of a system that exceeds the maximum
permissible input levels may damage the speakers.
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.
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.
Speaker cord
<CY-PA2003W, CY-PAD1003W>
<CY-PA4003W>
Caution for the power cord (option):
Follow an expert’s instruction for the use of the cord
separately sold.
Terminal screw
Terminal screw
Caution for the speaker (option):
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.
Use speakers with a suitable maximum input.
In case of 4-channel/3-channel connection
<CY-PA4003W>:
Use speakers with the impedance of 28 .
In case of 2-channel/stereo connection:
Use speakers with the impedance of 48 .
Power Terminal Screw Connection
For power connection, use the optional battery lead
(yellow) specially designed for car-audio system and
connect it directly to the car battery.
Use the cord having the fuse capacity larger than that of
this unit.
Securely tighten each lead with a terminal screw.
1 Unscrew the terminal screw.
Terminal screw
Battery terminal
External amplifier control terminal
Ground terminal
Terminal Cover for Short-circuit Prevention
This terminal cover is for preventing short-circuit between adjacent terminals. Before connecting each lead, pass it through
the terminal cover. After connecting the leads to the terminals, cover the speaker output terminals and power terminals
with this cover. Make sure that the projections to prevent slipping out are facing down.
2 Insert the screw into the terminal of the lead. Securely
fasten the screw.
Ground Lead (Black)
<CY-PA4003W>
<CY-PA2003W, CY-PAD1003W>
External Amplifier Control Lead
(Blue/white stripe)
Battery Lead (Yellow)
Corrugated tube
If the battery lead has to be routed through high
temperature area, protect it with a corrugated tube
(option).
Terminal cover for short-circuit prevention
Terminal cover for short-circuit prevention
Battery Lead (Yellow)
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Wiring <CY-PA4003W>
Speaker Connections with RCA cord
Speaker Connections with SPEAKERS INPUT Connectors
Example: 4 channel speaker connection (4CH input)
Example: 4 channel speaker connection (4CH input)
Note for RCA Input Connection:
Selectively assign each front and rear output to either RCA INPUT A or B, in accordance with the system from which the
output is coming.
In case of a single line coming from the RCA output of Head Unit, connect the line to RCA INPUT A.
INPUT SELECT
SPEAKERS
4/2 CHANNEL SWITCH
4CH
Do not connect it to RCA INPUT B.
INPUT CH B
INPUT CH A
INPUT SELECT
LINE
4/2 CHANNEL SWITCH
4CH
LPF/OFF/HPF
OFF
CH B
SPEAKERS INPUT
CH A
SPEAKERS
INPUT
CH A
SPEAKERS INPUT
Not used.
CH B
SPEAKERS INPUT
Not used.
INPUT CH A (Not used.)
INPUT CH B (Not used.)
CH A
Speaker lead’s color Channel
Ground lead
Ground lead
White
Front left ()
OUTPUT
(For CH A)
When connecting
another power
amplifier:
White/black stripe
Gray
Gray/black stripe
Front left ()
Front right ()
Front right ()
Speaker input
L (White)
R (Red)
R (Red)
L (White)
L (White)
connector
RCA cord
(option)
CH B
RCA cord
(option)
Speaker lead’s color Channel
Green
R (Red)
Rear left ()
Green/black stripe
Violet
Violet/black stripe
Rear left ()
Rear right ()
Rear right ()
Rear Speaker Output
Head Unit
Front Speaker Output
PRE-OUT
(Front)
PRE-OUT
(Rear)
Speaker output CH A
Front (L)
(min. 2 ) (min. 2 )
Front (R)
Power amplifier
Head Unit
Note for the ground lead of the speaker input
connector:
Connect to the Head Unit’s earth.
Do not allow the speaker output and ground to
short out. Doing so will cause damage to this
unit.
Front (L) (min. 2 ) Front (R) (min. 2 )
Speaker output CH A
External Amplifier Control Lead
(Blue/white stripe)
To Head Unit’s external amplifier control
power lead.
External Amplifier Control Lead
(Blue/white stripe)
To Head Unit’s external amplifier control power lead.
Ground Lead (Black)
To a clean, bare metallic part of the car
chassis.
Ground Lead (Black)
To a clean, bare metallic
part of the car chassis.
Speaker output CH B
Battery Lead (Yellow)
To the car battery, continuous 12 V DC.
Rear (L)
(min. 2 ) (min. 2 )
Rear (R)
Battery Lead (Yellow)
To the car battery,
Rear (L)
Rear (R)
(min. 2 ) (min. 2 )
continuous 12 V DC.
Speaker output CH B
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Wiring <CY-PA2003W>
Speaker Connections with RCA cord
Example: 2 channel speaker connection
Speaker Connections with SPEAKERS INPUT Connectors
Example: 2 channel speaker connection
INPUT
INPUT SELECT
LINE
INPUT SELECT
SPEAKERS
OUTPUT
When connecting another
power amplifier:
SPEAKERS INPUT
Not used.
SPEAKERS
INPUT
INPUT
(Not used.)
L (White)
L (White)
L (White)
R (Red)
R (Red)
Speaker lead’s color
White
White/black stripe
Gray
Channel
Left ()
Left ()
Right ()
Right ()
Ground lead
RCA cord
(option)
RCA cord
(option)
Speaker input connector
Gray/black stripe
R (Red)
PRE-OUT
Speaker Output
Power amplifier
Head Unit
Note for the ground lead of the speaker input
connector:
Head Unit
Connect to the Head Unit’s earth.
Do not allow the speaker output and ground
to short out. Doing so will cause damage to
this unit.
External Amplifier Control Lead
(Blue/white stripe)
To Head Unit’s external amplifier control
power lead.
External Amplifier Control Lead
(Blue/white stripe)
To Head Unit’s external amplifier control power lead.
Ground Lead (Black)
To a clean, bare metallic
part of the car chassis.
Ground Lead (Black)
To a clean, bare metallic part of the
car chassis.
Battery Lead (Yellow)
To the car battery,
Speaker output
continuous 12 V DC.
Speaker output
Left (min. 2 )
Right (min. 2 )
Battery Lead (Yellow)
To the car battery, continuous
12 V DC.
Left (min. 2 )
Right (min. 2 )
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Wiring <CY-PAD1003W>
Speaker Connections with RCA cord
Example: 2 channel Input System
Speaker Connections with SPEAKERS INPUT Connectors
Example: 2 channel Input System
INPUT SELECT
LINE
INPUT
INPUT SELECT
OUTPUT
When connecting another
power amplifier:
SPEAKERS
SPEAKERS INPUT
Not used.
SPEAKERS
INPUT
INPUT
(Not used.)
L (White)
L (White)
Speaker lead’s color
White
White/black stripe
Gray
Channel
Left ()
Left ()
Right ()
Right ()
R (Red)
R (Red)
Ground lead
RCA cord
(option)
Speaker input connector
RCA cord
(option)
Gray/black stripe
L (White)
R (Red)
PRE-OUT
Speaker Output
Power amplifier
Head Unit
Head Unit
Right (min. 4 )
External Amplifier Control Lead
(Blue/white stripe)
To Head Unit’s external amplifier control
power lead.
Note for the ground lead of the speaker input
connector:
Connect to the Head Unit’s earth.
Do not allow the speaker output and ground to
short out. Doing so will cause damage to this unit.
Right (min. 4 )
External Amplifier Control Lead
(Blue/white stripe)
To Head Unit’s external amplifier control power lead.
Ground Lead (Black)
To a clean, bare metallic
part of the car chassis.
Ground Lead (Black)
To a clean, bare metallic part of the
car chassis.
Battery Lead (Yellow)
To the car battery,
continuous 12 V DC.
Left (min. 4 )
Battery Lead (Yellow)
To the car battery, continuous
12 V DC.
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Troubleshooting
Problem
Possible cause Possible solution
If You Suspect Something Wrong
Warning
Check and take steps as described below.
Do not use the unit in abnormal condition, for
example, without sound, or with smoke or foul
smell, which can cause ignition or electric shock.
Immediately stop using the unit and consult your
dealer.
No sound available.
(continued)
There is an electromagnetic-wave generator such as a cellular phone near the unit or
its electrical lines.
Keep the electromagnetic-wave generator such as a cellular phone away from
the unit and the wiring of the unit. If noise cannot be eliminated due to the wiring
harness of the car, consult your dealer.
If the described suggestions do not solve the problem,
it is recommended to take the unit to your nearest
authorized Panasonic Service Center. The product should
be serviced only by qualified personnel. Please refer
checking and 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 try to repair the unit by yourself because it is
dangerous to do so.
Fuse blows out.
Eliminate the cause of fuse blowout and replace the fuse with new one. Consult
your dealer.
Never take measures especially those other than
indicated by italic letters in “Possible solution”
described below because those are too dangerous for
users to handle themselves.
Bad sound quality
(Distorted sound)
Noise
The bass is too much enhanced.
Set the bass boost appropriately.
Problem
Possible cause Possible solution
Sound comes out from
only either the Front
2CH or the Rear 2CH.
<CY-PA4003W>
The 2CH/4CH setting of the speaker input is incorrect.
Set it correctly.
No sound available.
The power cord (battery, power and ground) is connected in the wrong way.
Check the wiring.
The contact of the ground lead is poor.
Make sure that the ground lead is connected to an unpainted part of the chassis
securely.
Only the bass is
available.
<CY-PA4003W, CY-PA2003W>
The Crossover Filter Switch (LPF/OFF/HPF) is turned off.
Set it on LPF or HPF according to the speaker connection.
The speaker cord is short-circuited.
Check the speaker cord, and replace the fuse.
<CY-PAD1003W>
The Crossover Filter Switch (LPF/OFF) is turned off.
Set it on LPF according to the speaker connection.
The speaker received damage because of too small input capacity.
Obtain the right speaker allowed to connect this unit, and replace the fuse. (page
32)
Only the treble is
available.
The setting of Crossover Frequency Control is incorrect.
Check the Crossover Frequency Control setting.
The speaker cord is not properly connected.
Properly reconnect so that the polarity matches between the speaker cord and
the terminal.
The speaker cord is bitten with a screw of the vehicle.
Correct the wiring of the speaker cord.
The Protect lamp lights
red.
The speaker cord is short-circuited.
Check the speaker cord, and replace the fuse.
The knob for sound volume control is not properly adjusted.
Properly adjust it.
Adjust the volume of the Head Unit.
The speaker received damage because of too small input capacity.
Obtain the right speaker allowed to connect this unit, and replace the fuse. (page
32)
Input Select (LINE/SPEAKERS) is not set in accordance with the speaker output cord
of the Head Unit.
Check the Input Select (LINE/SPEAKERS) setting.
The speaker cord is not properly connected.
Properly reconnect so that the polarity matches between the speaker cord and
the terminal.
Fuse blows out.
Eliminate the cause of fuse blowout and replace the fuse with new one. Consult
your dealer.
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Troubleshooting
(continued)
Specifications
<CY-PA4003W>
Power Supply:
<CY-PA2003W>
Power Supply:
<CY-PAD1003W>
Power Supply:
Product Servicing
DC 12 V (11 V–16 V), test
DC 12 V (11 V–16 V), test
voltage 14.4 V,
Negative Ground
44 A (at 200 W2)
4
DC 12 V (11 V–16 V), test
voltage 14.4 V,
Negative Ground
29 A (at 350 W1)
4
If the suggestions in the charts do not solve the problem,
we recommend that you take it to your nearest authorized
Panasonic Service Center. The product should be serviced
only by a qualified technician.
voltage 14.4 V,
Negative Ground
32 A (at 64 W4)
4
Current Consumption:
Speaker Impedance:
Current Consumption:
Speaker Impedance:
Current Consumption:
Speaker Impedance:
Power Output (“EIA” Power):
Power Output (“EIA” Power):
Power Output (“EIA” Power):
2-CH: 190 W2 (20 Hz20 000 Hz, 1 %, 4 )
3-CH: 64 W2190 W (20 Hz20 000 Hz, 1 %, 4 )
4-CH: 64 W4 (20 Hz20 000 Hz, 1 %, 4 )
Maximum Power Output:
2-CH: 220 W2 (20 Hz20 000 Hz, 10 %)
3-CH: 85 W2220 W (20 Hz20 000 Hz, 10 %)
4-CH: 85 W4 (20 Hz20 000 Hz, 10 %)
Total Harmonic Distortion: 0.08 % (1 000 Hz, at 10 W)
1-CH (Monaural): 480 W1 (20 Hz20 000 Hz, 1 %, 4 )
2-CH (Stereo): 200 W2 (20 Hz20 000 Hz, 1 %, 4 )
Maximum Power Output:
1-CH (Monaural): 550 W1 (20 Hz20 000 Hz, 10 %)
2-CH (Stereo): 260 W2 (20 Hz20 000 Hz, 10 %)
Total Harmonic Distortion: 0.08 % (1 000 Hz, at 10 W)
1-CH (Monaural): 350 W1 (10 Hz8 000 Hz, 1 %, 4 )
Maximum Power Output:
1-CH (Monaural): 600 W1 (10 Hz8 000 Hz, 10 %)
Total Harmonic Distortion: 0.2 % (1 000 Hz, at 10 W)
Replacing the Fuse
Warning
Use fuses of the same specified rating.
CY-PA4003W: 35 A2
CY-PA2003W: 25 A3
CY-PAD1003W: 25 A3
Low Pass Filter:
Bass Boost:
50 Hz250 Hz
0 dB15 dB (Middle
Frequency: 45 Hz)
20 Hz, 3 dB, 12 dB/oct
90 dB (IHF, A)
10 Hz8 kHz
0.2 V6 V
More than 22 k
28062303 mm
4.0 k
Low Pass Filter:
High Pass Filter:
Bass Boost:
50 Hz250 Hz
50 Hz250 Hz
0 dB15 dB (Middle
Frequency: 45 Hz)
90 dB (IHF, A)
20 Hz20 kHz
0.2 V6 V
More than 43 k
28062333 mm
4.5 k
Subsonic Filter:
Low Pass Filter:
High Pass Filter:
Bass Boost :
50 Hz250 Hz
50 Hz250 Hz
0 dB15 dB (Middle
Frequency: 45 Hz)
90 dB (IHF, A)
20 Hz20 kHz
0.2 V6 V
More than 46 k
28062333 mm
4.4 k
Signal to Noise Ratio:
Frequency Response:
Input Sensitivity:
Input Impedance:
Dimensions (WHD):
Weight:
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.
Signal to Noise Ratio:
Frequency Response:
Input Sensitivity:
Input Impedance:
Dimensions (WHD):
Weight:
Signal to Noise Ratio:
Frequency Response:
Input Sensitivity:
Input Impedance:
Dimensions (WHD):
Weight:
Note:
If the replacement fuse fails, contact your nearest
Panasonic Service Center for service.
Specifications and design are subject to modification
without notice due to improvements.
Note:
Specifications and design are subject to modification
without notice due to improvements.
Some figures and illustrations on this manual may be
different from your product.
Some figures and illustrations on this manual may be
different from your product.
Note:
Specifications and design are subject to modification
without notice due to improvements.
Some figures and illustrations on this manual may be
different from your product.
Maintenance
Caution on Cleaning
Alcohol
Pesticide
Thinner
Wax
Benzine
Your product is designed and manufactured to require
minimum maintenance. Use a dry soft cloth for routine
exterior cleaning. Never use benzine, thinner or other
solvents.
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Matsushita Electric Industrial Co., Ltd.
YEFM285832A FU0106-2046 Printed in China
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