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.
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
4
5
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
8
9
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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