Table of Contents
Advertisement
8A - 4
AUDIO/VIDEO
AUDIO (Continued)
CONDITION
NO COMPACT DISC
OPERATION
AMPLIFIER
DESCRIPTION
The optional premium speaker system includes a
separate audio power amplifier. The amplifier is a
four channel unit and is rated at 120 (RCC sales
code) or a six channel rated at 150 (RCK sales code)
total output watts. The amplifier is located below the
front passenger seat.
OPERATION
The power amplifier electronically increases the
frequency response of the normal audio signal output
from the radio amplifier in order to improve the
acoustic performance of the speakers. On vehicles
equipped with an amplifier, the amplifier section of
the radio becomes a pre-amplifier.
The amplifier receives audio signal inputs for
speaker channels from the radio, then sends ampli-
fied audio outputs through six separate channels
with dedicated feed and return circuits to the indi-
vidual speakers.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the retaining fasteners. Adjust or
remove the seat as necessary to gain access.
(3) Disconnect the wire harness connector.
(4) Remove the amplifier.
INSTALLATION
(1) Connect wire harness connector to amplifier.
(2) Install amplifier. Tighten the forward screw to
3 N·m (26.5 in. lbs.) and the rear nut to 2 N·m (18 in.
lbs.).
(3) Connect battery negative cable.
ANTENNA BODY & CABLE
DIAGNOSIS AND TESTING - ANTENNA BODY
AND CABLE
The following four tests are used to diagnose the
antenna with an ohmmeter:
POSSIBLE CAUSES
1. Faulty CD.
2. Foreign material on CD.
3. Condensation on CD or
optics.
4. Faulty CD player.
CORRECTION
1. Insert known good CD and test operation.
2. Clean CD and test operation.
3. Allow temperature of vehicle interior to stabilize
and test operation.
4. Refer to appropriate Diagnostic Service
Manual.
• Test 1 - Coax cable at back of radio to ground
test
• Test 2 - Tip-of-mast to tip-of-conductor test
• Test 3 - Body ground to battery ground test
• Test 4 - Body ground to antenna coaxial cable
shield test.
WARNING:
DISABLE
BEFORE ATTEMPTING ANY STEERING WHEEL,
STEERING COLUMN, SEAT BELT TENSIONER, SIDE
AIRBAG, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
The ohmmeter test lead connections for each test
are shown in the illustration (Fig. 1).
NOTE: This model has a two-piece antenna coaxial
cable. Tests 2 and 4 must be conducted in two
steps to isolate an antenna cable problem. First,
test the primary antenna cable (integral to the body
wiring) from the coaxial cable connector just in
front of the front seat crossmember of the passen-
ger seat to the antenna body. Then, test the second-
ary antenna cable (instrument panel antenna cable)
from the coaxial cable connector just in front of the
front seat crossmember of the passenger seat to
the coaxial cable connector at the radio.
TEST 1
Test 1 checks the antenna conductor components
for a short circuit. This test should be performed first
on the entire antenna circuit, from the antenna mast
to the center conductor of the coaxial cable connector
at the radio. If a short circuit is detected, each of the
three antenna conductor components (antenna mast,
antenna body and primary cable unit, instrument
panel antenna secondary cable) should be isolated
THE
AIRBAG
SYSTEM
JR
Advertisement
Table of Contents
