navigation ACURA CSX 2006 Service Repair Manual

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Left/Right Channel IDPhase Test
23-7423-74Audio System
Sound Quality Diagnosis
Diagnostics CD 07AAZ-SDBA100
Use the following tests to check sound quality.
NOTE: Before beginning the following tests, write down
the client’s bass, treble, fader and balance settings, and
then set them to their center positions for testing.
Do this test to confirm proper channel routing.
1. Insert the diagnostics CD (T/N: 07AAZ-SDBA100) into the navigation unit or audio unit.
2. Play track No. 1 (left, both, right channel ID) at a normal, or slightly higher than normal, volume
level.
3. The voice should be audible only from the channel or channels when indicated.
 If the channel ID is correct for each side, go to the phase test.
 If the channel ID is not correct, check for; – Shorted speaker wire
– Faulty amplifier (Type S model)
– Faulty navigation unit
– Faulty audio unit Diagnostics CD 07AAZ-SDBA100
Do this test to confirm proper speaker phasing.
1. Insert the diagnostics CD (T/N: 07AAZ-SDBA100) into the navigation unit or audio unit.
2. Play track No. 2 (phase) at a normal, or slightly higher than normal, volume level.
3. The voice should sound centered and focused when it is in-phase.
4. The voice should sound diffused, and have less bass when it is out of phase.
 If the voice changes from in-phase to out of phase as indicated by the prompt, the phasing is
correct. Go to electrical noise test.
 If the voice always sounds out of phase, phasing is not correct. Check for;
– Crossed speaker wires
– Faulty amplifier (Type S model)
– Faulty navigation unit
– Faulty audio unit
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Special Tools Required
Electrical Noise Test
23-75
Diagnostics CD 07AAZ-SDBA100
Do this test to check for electrical noise being induced
into the audio system.
NOTE: Electrical noise may be caused by outside
sources that cannot be handled by the audio system.
Make sure you remove any cell phones and/or turn off
any aftermarket device before beginning this test.
1. Insert the diagnostics CD (T/N: 07AAZ-SDBA100) into the navigation unit or audio unit.
2. Play track No. 4 (digital zero) at a normal, or slightly higher than normal, volume level.
3. Operate any electrical device that may create electrical noise in the audio system, including
starting the engine.
4. Play track No. 5 (near digital zero) at a normal, or slightly higher than normal, volume level.
5. Operate any electrical device that may create electrical noise in the audio system, including
starting the engine.
6. Play track No. 6 (SNR) at a normal, or slightly higher than normal, volume level. 7. Operate any electrical device that may create
electrical noise in the audio system, including
starting the engine.
 If no abnormal noise is heard, go to individual speaker test.
 If the noise is present only during the SNR track, replace the navigation unit or audio unit.
 If the noise is heard during the digital zero or near digital zero track, check for;
– Poor ground for the audio unit, amplifier, engine or battery cable
– Pinched or shorted speaker or amplifier wire
– Faulty amplifier (Type S model)
– Faulty navigation unit
– Faulty audio unit
– Other faulty components causing excessive electrical noise (ignition coils, alternator, door
lock actuators, etc.). Disconnect any suspect
components, and then replay the tracks that
were originally noisy. If the noise is gone,
check the component’s circuit and the
component.
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Individual Speaker TestSound Balance Test
23-7623-76Audio System
Sound Quality Diagnosis (cont’d)
Diagnostics CD 07AAZ-SDBA100
Do this test to identify a faulty speaker.
1. Insert the diagnostics CD (T/N: 07AAZ-SDBA100) into the navigation unit or audio unit.
2. Play track No. 30 (steady 300 Hz tone) at a normal, or slightly higher than normal, volume level.
3. Listen to each speaker for poor sound compared to the other speakers. Use the audio unit’s fader and
balance settings to help isolate the channel with the
problem.
 If the sound quality produced by a specific speaker is poor, substitute it with a known-good
speaker. If the poor sound quality continues, go
to the sound balance test.
 If the sound quality is OK, go to the sound balance test. Diagnostics CD 07AAZ-SDBA100
Perform this test to identify a faulty channel or speaker.
1. Insert the diagnostics CD (T/N: 07AAZ-SDBA100) into the navigation unit or audio unit.
2. Confirm the bass and treble are set to the center positions.
3. Play track No. 3 (pink noise) at a normal, or slightly higher then normal, volume level.
4. A static type sound should be heard through all speakers.
5. Insert the diagnostics CD (T/N: 07AAZ-SDBA100) into the navigation unit or audio unit of a known-
good vehicle.
6. Set the bass and treble to the center position.
7. Play track No. 3 (pink noise) all the same level as wasplayedinstep3.
8. Compare the sounds made by the two vehicles.  If the noise sounds made by the two vehicles arevery similar, go to the Frequency Sweep Test
(see page 23-77).
 If the sound does not have as much bass, check the subwoofer and circuit.
 If the sound does not have enough hiss, check the tweeters and their circuits.
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Frequency sweepSound judging
23-7723-77
Diagnostics CD 07AAZ-SDBA100
Do this test to find rattles or reverberation that may
cause a perception of poor sound quality.
1. Insert the diagnostics CD (T/N: 07AAZ-SDBA100) into the navigation unit or audio unit.
2. Play track No. 13 (sweep from 500 Hz to 35 Hz) at a normal, or slightly higher than normal, volume
level.
3. Listen to each speaker for poor sound quality or reverberations caused by specific frequencies. Use
the voice-over to estimate the frequency that
causes the vibration. Use the audio unit’s fader and
balance settings to help isolate the channel with the
problem.
 If vibrations or poor sound quality are heard, go to step 4.
 If no vibrations or poor sound quality are heard, go to sound judging.
4. Choose the appropriate track from No. 14 to 25 (small range frequency sweep) or 26 to 53 (single
frequencies) to recreate the frequency that caused
the poor sound quality or vibration located in step
3: this aids in diagnosis of the cause.
NOTE: When you get to the track that recreates the
problem, select the repeat function on the
navigation unit or audio unit, this will help you
isolate the cause.
5. Replace or insulate the source of the vibrations or, if the speaker is the source of the poor sound
quality, replace it. Diagnostics CD 07AAZ-SDBA100
 Do this test to compare overall sound quality, imaging, and dynamics between the customer’s
vehicle and a known-good vehicle. Only use a vehicle
of the same model and trim level for this test.
 Make sure the vehicle is using only OEM speakers.
1. In the client’s vehicle, set the bass, treble, fader, and balance settings to the client’s normal settings
that were written down before beginning testing.
2. Insert the diagnostics CD (T/N: 07AAZ-SDBA100) into the navigation unit or audio unit.
3. Play tracks No. 7 to 12 (sound quality, midland, dynamics, and imaging demonstration tracks) at a
normal, or slightly higher than normal, volume
level. Write down the volume setting being used.
4. Listen to areas of the track that stand out as being either very clear, or poorer than other areas of the
track.
5. Insert the diagnostics CD (T/N: 07AAZ-SDBA100) into the navigation unit or audio unit of a known-
good vehicle.
6. Play the tracks at the same volume level and the same bass, treble, balance, and fader settings as
used in step 3 in the client’s vehicle.
7. Listen to the same area of the track that stood out as being either very clear or poorer than other
areas of the track.
(cont’d)
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Seek Stop Test
23-7823-78 Audio System
Sound Quality Diagnosis (cont’d)
8. Compare the client’s vehicle’s sound quality results
to the known-good vehicle’s results.
 If the sound quality in the customer’s vehicle is comparable to the sound quality in the known-
good vehicle, then the client’s vehicle is
operating as designed.
 If the sound quality is not comparable, check these items in order.
– Loose or improperly installed speakers or other hardware that may become excited by
the vibrations generated by the speakers
– Poor power or ground to the stereo amplifier (Type S model)
– Damaged speaker(s)
– Faulty amplifier (Type S model)
– Faulty navigation unit
– Faulty audio unit Do this test to check the performance of the audio unit’s
AM and FM reception. Refer to symptom
troubleshooting: audio sound weak or distorted, or no
sound is heard from speakers (display is normal)
(see page 23-39) before continuing with this test.
NOTE:
 Window tint, aftermarket theft-recovery devices and other aftermarket accessories may reduce radio
reception.
 Changes in cloud cover and other atmosphere conditions will affect the ab ility of the navigation unit
or audio unit to receive radio signals.
1. Park the client’s vehicle in an open area away from buildings or other obstructions.
2. Park a known-good vehicle (same year, model, and trim level) next to the client’s vehicle, facing the
same direction.
3. Start the engine in the client’s vehicle, and turn on the radio.
4. Set the FM receiver to 87.7 MHz.
5. Press the Seek button and record the first station that the navigation unit or audio unit locks onto.
6. Press the Seek button repeatedly, and write down each station that the navigation unit or audio
unit locks onto until the station recorded in step 5 is
reached again.
7. Set the AM receiver to 530 kHz.
8. Press the Seek button, and record the first station that the navigation unit or audio unit locks
on to.
9. Press the Seek button repeatedly, and write down each station that the navigation unit or audio
unit locks onto until the station recorded in step 8 is
reached again.
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Without navigation 6 CD type
23-80 Audio System
Audio Unit Removal/Installation
A
B
C
B
A
BSRS components are located in this area. Review the
SRS component location (see page 24-11).
Also review the precautions and procedures (see page
24-13) in the SRS section before doing repairs or
service.
NOTE: Put on gloves to protect your hands.
 Take care not to scratch the dashboard and related parts.
 Lay a workshop towel under the parts when working on them to protect the face panel from scratches or
other damage.
 Do not work in a dusty or dirty place.
 Discharge static electricity from your body before and during the work.
 Do not touch the circuit board(s) with your bare hands.
 Do not work with dirty hands.
 Be careful not to fold the flat plate cable.
 Do not touch the terminal connector of the flat plate cable with your bare hands. (If you have touched it,
wipe it off thoroughly.)
 Eject all the discs before removing the audio unit to prevent damaging the CD player’s load mechanism.
 If you are replacing the audio unit, write down the sudio presets (if possible), and enter them into the
new audio unit.
1. Remove the meter inner visor (see page 20-100). 2. Remove the center pocket hole lid and the bolts,
then pull out the center panel (A).
3. Disconnect the connectors (B), and the air hose (C) then remove the center panel.
4. Remove the screws, and the audio unit (A) from the center panel display (B).
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Without navigation 1 CD type
23-81
A
AB
B C
5. Remove the screws and the brackets (A).
6. Install the audio unit in the reverse order of
removal, and make sure all connectors and
antenna lead are secure. SRS components are located in this area. Review the
SRS component location (see page 24-11).
Also review the precautions and procedures (see page
24-13) in the SRS section before doing repairs or
service.
NOTE:
 Put on gloves to protect your hands.
 Take care not to scratch the dashboard and related parts.
 Lay a workshop towel under the parts when working on them to protect the face panel from scratches or
other damage.
 Do not work in a dusty or dirty place.
 Discharge static electricity from your body before and during the work.
 Do not touch the circuit board(s) with your bare hands.
 Do not work with dirty hands.
 Be careful not to fold the flat plate cable.
 Do not touch the terminal connector of the flat plate cable with your bare hands. (If you have touched it,
wipe it off thoroughly.)
 Eject all the discs before removing the audio unit to prevent damaging the CD player’s load mechanism.
 If you are replacing the audio unit, write down the sudio presets (if possible), and enter them into the
new audio unit.
1. Remove the meter inner visor (see page 20-100).
2. Remove the center pocket hole lid and bolts, then pull out the center panel (A).
3. Disconnect the connectors (B) and the air hose (C), then remove the center panel.
(cont’d)
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’08 model with navigation
23-8223-82 Audio System
Audio Unit Removal/Installation
(cont’d)
XM Receiver Removal/Installation
A
A
A B
A
C A
A
B
4. Remove the bolts, screws and the brackets (A).
5. Remove the screws, rear covers (A) and the audio
unit (B) from the center panel display (C).
6. Install the audio unit in the reverse order of removal, and make sure all connectors and
antenna lead are secure. 1. Open the trunk lid and remove the right trunk side
trim panel (see page 20-82).
2. Disconnect the connectors (A) from the XM receiver (B).
3. Loosen the three bolts, and remove the XM receiver.
4. Install the XM receiver in the reverse order of removal.
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’08 model with navigation
23-8223-82 Audio System
Audio Unit Removal/Installation
(cont’d)
XM Receiver Removal/Installation
A
A
A B
A
C A
A
B
4. Remove the bolts, screws and the brackets (A).
5. Remove the screws, rear covers (A) and the audio
unit (B) from the center panel display (C).
6. Install the audio unit in the reverse order of removal, and make sure all connectors and
antenna lead are secure. 1. Open the trunk lid and remove the right trunk side
trim panel (see page 20-82).
2. Disconnect the connectors (A) from the XM receiver (B).
3. Loosen the three bolts, and remove the XM receiver.
4. Install the XM receiver in the reverse order of removal.
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Subwoofer (Type S model) ’07-08 models
23-8523-85
Auxiliary Jack Assembly
Replacement
A
B A
B
1. Remove the rear tray (see page 20-78).
2. Remove the four mounting bolts from the
subwoofer (A).
3. Disconnect the 2P connector (B), and remove the subwoofer.
4. Install the subwoofer in the reverse order of removal. 1. With navigation: Remove the navigation unit
(see page 23-155).
Without navigation: Remove the audio unit
(see page 23-80).
2. Carefully pull out the auxiliary jack assembly (A), then disconnect the 5P connector (B).
3. Install the auxiliary jack assembly in the reverse order of removal.
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