Honda ACCORD HYBRID 2005 Service Manual page 2029

Special Tools Required
Diagnostics CD 07AAZ-SDBA100
Individual Speaker Test
Do this test to identify a faulty speaker.
1. Insert the audio diagnostic CD (T/N 07 AAZ-S DBA
100) into the audio unit.
2. Play track No. 30 (steady 300 Hz tone) at a n o r m a l ,
or slightly higher than n o r m a l , v o l u m e level.
3. Listen to each speaker for poor sound, and
compare it to the other speakers. Use the audio
unit's fader and balance settings to help isolate the
channel w i t h the p r o b l e m .
• If the sound quality produced by a specific
speaker is poor, substitute it w i t h a k n o w n - g o o d
speaker. If the poor sound quality continues, go
to the sound balance test (see page 23-63).
• If the sound quality is OK, go to the sound
balance test (see page 23-63).
Special Tools Required
Diagnostics CD 07AAZ-SDBA100
Sound Balance Test
Perform this test to identify a faulty channel or speaker.
1. Insert the audio diagnostic CD (T/N 07AAZ-SDBA
100) into the audio unit.
2. Confirm the bass and treble are set to the center
positions.
3. Play track No. 3 (pink noise) at a n o r m a l , or slightly
higher than n o r m a l , v o l u m e level.
4. A " s t a t i c " type sound should be heard t h r o u g h all
speakers.
5. Insert the audio diagnostic CD (T/N 07AAZ-SDBA
100) into the audio unit of a k n o w n - g o o d vehicle.
6. Set the bass and treble to the center positions.
7. Play track No. 3 (pink noise) all the same level as
was played in step 3.
8. Compare the sounds made by the t w o vehicles.
• If the sounds made by the t w o vehicles are very
similar, go to the Frequency Sweep Test
(see page 23-64).
• If the sound does not have as much bass, go to
the phase test (see page 23-61).
• If the sound does not have enough " h i s s , " check
the tweeters and their circuits.
23-63