Audio Systems - Chrysler 1998 Voyager Service Manual

NS
GENERAL INFORMATION
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1
DESCRIPTION AND OPERATION
ANTENNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CHOKE-INFINITY SPEAKERS . . . . . . . . . . . . . . 2
INTERFERENCE ELIMINATION . . . . . . . . . . . . . . 1
NAME BRAND SPEAKER RELAY . . . . . . . . . . . . 3
RADIO IGNITION INTERFERENCE . . . . . . . . . . . 2
RADIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
REMOTE RADIO SWITCHES . . . . . . . . . . . . . . . . 3
DIAGNOSIS AND TESTING
ANTENNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
GENERAL INFORMATION
INTRODUCTION
Operating instructions for the factory installed
audio systems can be found in the Owner's Manual
provided with the vehicle.
NS vehicles are equipped with an Ignition Off
Draw (IOD) fuse in the power distribution center
located in the engine compartment. After the IOD
fuse or battery has been disconnected, the radio sta-
tion sets and clock will require resetting.
DESCRIPTION AND OPERATION
ANTENNA
All models use a fixed-length stainless steel rod-
type antenna mast, installed at the right front fender
of the vehicle. The antenna mast is connected to the
center wire of the coaxial antenna cable, and is not
grounded to any part of the vehicle.
To eliminate static, the antenna base must have a
good ground. The coaxial antenna cable shield (the
outer wire mesh of the cable) is grounded to the
antenna base and the radio chassis.
The antenna coaxial cable has an additional dis-
connect, located near the right end of the instrument
panel. This additional disconnect allows the instru-
ment panel assembly to be removed and installed
without removing the radio.
The factory-installed Electronically Tuned Radios
(ETRs) automatically compensate for radio antenna
trim. Therefore, no antenna trimmer adjustment is

AUDIO SYSTEMS

CONTENTS
page
AUDIO SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . 4
RADIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REMOTE RADIO SWITCHES . . . . . . . . . . . . . . . . 6
REMOVAL AND INSTALLATION
ANTENNA EXTENSION CABLE . . . . . . . . . . . . . . 7
ANTENNA MAST AND CABLE LEAD . . . . . . . . . 7
D-PILLAR SPEAKER . . . . . . . . . . . . . . . . . . . . 10
FRONT DOOR SPEAKER . . . . . . . . . . . . . . . . . . . 9
INSTRUMENT PANEL SPEAKER . . . . . . . . . . . . . 8
QUARTER PANEL SPEAKER . . . . . . . . . . . . . . . 10
RADIO/TAPE/CD PLAYER . . . . . . . . . . . . . . . . . . 8
REMOTE RADIO SWITCHES . . . . . . . . . . . . . . . . 9
required or possible when replacing the receiver or
the antenna.
INTERFERENCE ELIMINATION
Some components used on the vehicles are
equipped with a capacitor to suppress radio fre-
quency interference/static.
Capacitors are mounted in various locations inter-
nal to the generator, instrument cluster and wind-
shield wiper motor.
To eliminate radio interference, ground straps are
used in different areas of the vehicle. These ground
circuits should be securely tightened to assure good
metal to metal contact. The ground straps conduct
very small high frequency electrical signals to ground
and require clean surface contact area. The radio
ground is supplied from the instrument panel har-
ness and is attached to the rear of the radio. Some
engines have other ground straps to eliminate fur-
ther radio interference:
• Radio chassis to instrument panel structure
• Engine to dash panel
• Engine to chassis
• A/C h valve to dash panel
Radio resistance type spark plug cables in the high
tension circuit of the ignition system complete the
interference suppression. Faulty or deteriorated
spark plug wires should be replaced.
RADIOS
Available factory-installed radio receivers for this
model include an AM/FM/cassette (RAS sales code),
an AM/FM/cassette/5-band graphic equalizer with CD
changer control feature (RBN sales code), an AM/FM/
AUDIO SYSTEMS 8F - 1
page