Panasonic Cassette Weather Band Receiver Cq 4500u Operating Instructions

							21
Installation Guide (continued)
A handy way to identify the speaker leads and
the speaker they connect with is to test the leads
using a 1.5 volt AA battery as follows.
Hold one lead against one pole of the battery
and stroke the other lead across the other pole.
You will hear a scraping sound in a speaker if
you are holding a speaker lead.
If not, keep testing different lead combinations
until you have located all the speaker leads.
When you label them, include the speaker
location for each.
Antenna
The antenna lead is a thick, black wire with a
metal plug at the end.
❏Connect All Leads
Now that you have identified all the wires in the
vehicle, you’re ready to begin connecting them to
the stereo unit wires. The connection diagram on
Page 26, 27 show the proper connections and
color coding of the leads.
We strongly recommend that you test the unit
before making a final installation.
You can set the unit on the floor and make
temporary connections to test the unit. Use
electrical tape to cover all exposed wires.
Important:Connect the red power lead last,
after you have made and insulated all other
connections.
Ground
Connect the black ground lead of the power
connector to the metal vehicle chassis.
Speakers
Connect the speaker wires. See the wiring
diagram below for the proper hookups. Follow
the diagram carefully to avoid damaging the
speakers and the stereo unit.
The speaker used must be able to handle more
than 37 watts of audio power.  If using an
optional audio power, the speakers should be
able to handle the maximum amplifier output
power.  Speakers with low input ratings can be
damaged. 
Speaker impedance should measure 4 - 8 ohms,
which is typically marked on most speakers.
Lower or higher impedance speakers will affect
output and can cause both speaker and stereo
unit damage.
Caution:Never ground the speaker cords. For
example, do not use a chassis ground system or
a three-wire speaker common system. Each
speaker must be connected separately using
parallel insulated wires. If in doubt about how
your cars speakers are wired, please consult
with your nearest professional installer.
L
R
+
–
+
–
L
R
+
–
+
–
L
R
+
–
+
–
CORRECT
No Common Ground
INCORRECT
Common Chassis Ground
INCORRECT
Speaker Common
(common earth lead) 
						

							22
Battery
Connect the yellow battery lead to the correct
radio wire or to the battery fuse port on the fuse
block.
Antenna
Connect the antenna by plugging the antenna
lead into the antenna receptacle.
Equipment
Connect any optional equipment such as
amplifier, according to the instructions furnished
with the equipment. Keep about 12 inches (30
cm) of distance between the speaker
cords/amplifier unit and the antenna/antenna
extension cord. Read the operating and
installation instructions for any equipment you
will connect to this unit.
Accessory (ACC) Power
Connect the red power lead to the correct
vehicle radio wire or to the appropriate fuse port
on the fuse block.
If the stereo unit functions properly with all these
connections made, disconnect the wires and
proceed to the final installation.
❏Final Installation
Lead Connections
Connect all wires, making sure that each
connection is insulated and secure. Bundle all
loose wires and fasten them with tape so they
wont fall down later. Now insert the stereo unit
into the mounting collar.
Congratulations! After making a few final checks,
youre ready to enjoy your new auto stereo
system.
❏Final Checks
1. Make sure that all wires are properly
connected and insulated.
2. Make sure that the stereo unit is securely
held in the mounting collar.
3. Turn on the ignition to check the unit for
proper operation.
If you have difficulties, consult your nearest
authorized professional installer for assistance. 
						

							23
Installation Guide (continued)
❏Installation Procedures
Note: Disconnect the cable from the negative (–) battery terminal.
1
Mounting CollarDashboard
Mounting Tab
Screwdriver
2. Securre the rear of the unit.
a) Insert Power Connector 	to the unit.
b) Check the electrical connection by referring to this operating instructions.
c) Insert the unit into Mounting Collar 
and push it in until click is heard.
 Unit
d) Secure the rear of the unit to the vehicle by either of the two recommended methods on the next
page.
Power Connector8
1. Secure the Mounting Collar .
Insert Mounting Collar into the vehicles dashboard, and bend mounting tabs out with a
screwdriver.
When bending the mounting tab of the mounting collar with a screwdriver, be careful not to injure
your hands and fingers.
We strongly recommend you to wear gloves for installation work to protect yourself from injuries. 
						

							24
Using the Rear Support Strap 
Using the Rubber Cushion (option)
(If there is an existing Rear Support Bracket on the fire wall of the vehicle.)
Cover Mounting Bolt on the rear of the unit with Rubber Cushion (option), and mount it into the
existing Rear Support Bracket.
Rubber Cushion (option)
Mounting Bolt
 Mounting Collar
Rear Support Bracket
(existing on the vehicle)
3. After installation reconnect the negative (–) battery terminal. 
						

							25
Installation Guide (continued)
To Remove the Unit from the vehicles dashboard
Insert each Removal Tool and pull.
Note: Do not lose Removal Tool. They will be needed to remove the unit from the vehicles
dashboard.
Removal Tool
(U-shaped) 
						

							26
(Only for CQ-4500U)
Cautions:
This product is designed to operate with a 12-volt negative ground battery system.
To prevent damage to the unit, be sure to follow the connection diagram below.
Remove the covering of the leads approx. 5 mm long from their end before connecting.
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.
To  A U X(Red) (R)
(L)
(R)
(L)
(Rear) (White)
Preamp-Out(Red)
(White)AUX-IN
PRE-OUT(Rear Side)Temperature Sensor Lead
Sleeper Room Remote Connector
(Connect to CA-RC300U)
CD Changer Control Connector
Accessory Power(ACC)
(+12V DC, negative ground
 only)
Ground Lead
(Connect to a clean, bare
 metallic part of your vehicle)
Battery Lead
(Connect to vehicle battery)
AUX-In Sensor Lead
(Connect to vehicle computer) Amp. Cont(MAX 0.1A)(Blue)
(Red)
ACC
Ground
(Black)
(Yellow)
Battery
Fuse(10A)
AUX-In Sensor(Orange w/white
stripe) 	 Power Connector
(Violet)
(Violet w/black stripe) (Gray w/black stripe)
(Green)
(Green
w/black
stripe) (White
w/black
stripe)(Gray) (white)
Left Speaker
(Front)Right Speaker
(Front)Left Speaker
(Rear)Right Speaker
(Rear)
Cassette Receiver
CQ-4500U
Antenna
 Antenna Connector
Steering remote control lead (Orange)
Steering remote
Electrical Connections 
						

							27
(Only for CQ-4300U)
Cautions:
This product is designed to operate with a 12-volt negative ground battery system.
To prevent damage to the unit, be sure to follow the connection diagram below.
Remove the covering of the leads approx. 5 mm long from their end before connecting.
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.
(Rear Side)CD Changer Control Connector
Accessory Power(ACC)
(+12V DC, negative ground
 only)
Ground Lead
(Connect to a clean, bare
 metallic part of your vehicle)
Battery Lead
(Connect to vehicle battery) (Red)
ACC
Ground
(Black)
(Yellow)
Battery
Fuse(10A)
(Violet)
(Violet w/black stripe) (Gray w/black stripe)
(Green)
(Green
w/black
stripe) (White
w/black
stripe)(Gray) (white)
Left Speaker
(Front)Right Speaker
(Front)Left Speaker
(Rear)Right Speaker
(Rear)
Cassette Receiver
CQ-4300U
	 Power Connector
Antenna
 Antenna Connector
Electrical Connections (continued) 
						

							28
Troubleshooting
❏Maintenance
Your product is designed and manufactured
to ensure a minimum of maintenance. Use a
soft cloth for routine exterior cleaning. Never
use benzine, thinner, or other solvent.
❏When Something Doesnt Work
Check the charts on page 29 for possible
causes and solutions to any problem you
might be experiencing. Some simple checks
or minor adjustments may eliminate the
problem.
❏Product Servicing
If the suggestions in the charts dont solve
the problem, we recommend that you take it
to your nearest authorized dealer. Panasonic
Servicenter. The unit should be serviced
only by a qualified technician.
❏Replacing the Fuse
Use fuses of the same specified rating (10
amps). Using different substitutes or fuses
with higher ratings, or connecting the unit
directly without a fuse, could cause fire or
damage to the stereo unit.
If the replacement fuse fails, contact your
nearest Panasonic Servicenter for
service.
❏Notes on Cassette Tapes
Tape Slack:
Use a pencil or similar object to take up the
slack as shown. If a loose tape is used, this may
result in the tape becoming tangled in the
rotating parts of the unit.
Label
Pencil
Do not touch
or pull out the tape. 
						

							29
Troubleshooting (continued)
❏Troubleshooting Tips
PROBLEM
Unit does not turn on.
Radio has static.
Radio memory buttons do not
work.
Tape sound quality is poor.
Inverted Sound (Left/Right
Connections.)
No sound from front or rear
speakers
POSSIBLE CAUSE
Dead vehicle battery
Ignition or ACC is not on.
Bad power line connection
Fuse is blown.
Antenna not hooked up
Close to high power lines
Not holding buttons down long
enough
Heads are dirty.
Poor quality tape.
The speaker cords are inverted.
The fader control is set on the
wrong position.
PROBABLE SOLUTION
Charge vehicle battery.
Turn ignition to On or ACC.
Check connections.
Replace fuse.(consult your dealer)
Hook up antenna.
Move away from high power lines.
Press and hold buttons for more
than 2 seconds.
Clean heads. (Ask a service
representative for advice.)
Use better quality tape.
Check the speaker cords.
Adjust the fader control of the
unit correctly. 
						

							30
Specifications
General
Power Supply : 12 V DC (11V-16V) Test Voltage 14.4V, Negative ground
Maximum Power Output : 37 W ×4 channels at 400 Hz, Volume Control maximum
Power Output : 18 W per channel into 4 ohms, 40 to 30,000Hz at 3% THD.
Tone Action : Bass; ± 12 dB at 100 Hz
Treble; ± 12 dB at 10 kHz
Current Consumption : Less than 2.5 A (tape mode, 0.5 W 4-speaker)
Speaker Impedance : 4 Ω(4-8 Ωacceptable)
Dimensions (W 
×H ×D) : 7 ×1-15/16 ×5-7/8 (178 ×50 ×150 mm)
Weight : 3 lbs. (1.4 k
)
AM Radio
Frequency Range : 530-1,710 kHz
Useable Sensitivity : 28 dB/µV (25 µV/ S/N 20 dB)
FM Stereo Radio
Frequency Range : 87.9-107.9 MHz
Useable Sensitivity : 12 dBf. (1.1 µV / 75Ω, S/N 30 dB)
50 dB Quienting Sensitivity : 17 dBf. (1.8 µV / 75Ω)
Frequency Response : 30-15,000 Hz ± 3 dB
Alternate Channel Selectivity : 75 dB
Stereo Separation : 35 dB at 1,000 Hz
Signal/Noise Ratio : 70 dB (Mono)
Weather Band Radio
Frequency Range : 162.40-162.55 MHz
Useable Sensitivity : 3 dB/µV (S/N 20 dB)
Signal/Noise Ratio (40 dB/µV) : 50 dB
Tape Player
Reproduction System : 4-track, 2-program stereo
Tape Speed : 1-7/8/sec (4.76 cm/sec)
FF/REW Time : Less than 110 SEC (C-60)
Frequency Response : 35 - 14,000 Hz ± 3 dB
Wow and Flutter : 0.09% (WRMS)
Signal/Noise Ratio : 52 dB (Dolby NR on: 62 dB)
*Above specifications comply with EIA standards.
Note: Specifications and design are subject to modification without notice due to improvements in
technology.
Dobly noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
DOLBY and the double-D symbol 
Aare trademarks of Dolby Laboratories Licensing Corporation.
This unit has been manufactured under the Part 15 of the FCC Rules.
Do not attempt to make any changes or modifications to this unit.
Part 15 of the FCC Rules