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Mazda CX 7. Manual - part 369

SYMPTOM TROUBLESHOOTING [CD PLAYER/CHANGER]

09-03G–9

09-03G

NO.10 CD PLAYER DOES NOT PLAY THE AUDIO DATA (CDDA)[CD PLAYER/CHANGER]

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Diagnostic procedure

End Of Sie

NO.11 TRACK CHANGE IS INOPERATIVE[CD PLAYER/CHANGER]

id0903e5806900

Diagnostic procedure

End Of Sie

CD player does not play the audio data (CDDA)
Possible DTC:—

Troubleshooting hints

• CD-R/RW written format is out of specification

• Defective CD-R/RW (e.g., dirty CD, scratch)

• MP3 applicable CD player is malfunctioning

• Data other than the audio data is in CD-R/RW

Note

• The CD player may not play the CD-R/RW properly due to the disc condition.

• If there are MP-3-formatted file and audio data in the same disc, the CD player loads and plays the first session of the

data only.

STEP

INSPECTION

ACTION

• Replace with the audio-CD known to be

good.

• Does the CD player play the audio-CD

properly?

Yes

Go to the next step.

Replace the audio unit.

• Inspect the written format of the recorded

data on the CD-R/RW.

• Is the written format correct?

Yes

Go to the next step.

Write the CD-R/RW with the correct specification.

• Inspect the recorded data in the CD-R/RW.

• Is any data other than the audio data

recorded in the CD-R/RW?

Yes

Replace with the CD-R/RW known to be good (record audio
data only), then inspect the CD player operation.

If the CD-R/RW plays:

• Audio system is normal. Explain to the customer that the

CD player does not operate properly if the audio data
and other data are recorded in the CD-R/RW.

If the CD-R/RW does not play:

• Replace the audio unit.

Go to the next step.

• Visually inspect the CD-R/RW.

• Is there any dirt or scratch on the CD-R/RW?

Yes

Clean the disc or replace with the CD-R/RW known to be
good.

Replace the audio unit.

Track change is inoperative
Possible DTC:03:Er02

Troubleshooting hints

• Audio unit is malfunctioning

• Defective CD (e.g., cracked, badly bent, rough edges, scratch, dirty CD, condensation)

• Non-conventional discs (e.g., 8 cm (3 in) CD, 8 cm (3 in) disc adapter, heart-shaped disc, octagonal disc)

• Center panel is malfunctioning

• MP3 applicable CD player is malfunctioning

STEP

INSPECTION

ACTION

• Replace the CD known to be good.

• Does the CD player change the track?

Yes

Explain to the customer that the defective CD or non-
conventional disc cannot be used.

Go to the next step.

• Inspect the center panel installation.

• Does the CD player change the track number

on the display when pressing the track up or
down button?

Yes

Replace the audio unit.

Go to the “No.1 Audio panel switch inspection” in this
section.Replace the center panel as necessary.

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SYMPTOM TROUBLESHOOTING [CD PLAYER/CHANGER]

09-03G–10

REFERENCE[CD PLAYER/CHANGER]

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• The CD player/changer has been designed to

play CDs bearing the identification logo,
COMPACT DISC DIGITAL AUDIO, as shown. No
other discs can be played on the CD player/
changer other than MP3 applicable one.

• The CD player/changer may not play the following

CD:

— Defective CD (e.g., cracked, badly bent, rough

edges, scratch, dirty CD condensation)

— 8 cm (3 in) CDs accessories (e.g., 8 cm (3 in)

disc adapter, sticker, label)

— Nonstandard CD (e.g., Diameter/thickness is

out of specification)
Specification: 119.7— 120.3 mm (4.668—

4.692 in) of diameter, 12+0.3 or -0.1 mm (0.047+0.012 or 0.004 in) of thickness

• Do not use non-conventional discs. The CD player/changer could be damaged.

Examples:

• Although the same physical size as the compact

disc, SACD uses a different kind of digital audio
signal, Direct Stream Digital.

• The CD player/changer may not play the CD-R/

RW properly due to the disc condition (excluding
the MP3).

MP3-Formatted File
Outline of CD-R and CD-RW

• Definition

— CD-R: The CD-R is a non-rewritable version. Once a section of a CD-R is written, it cannot be erased or

rewritten.

— CD-RW: The CD-RW is a re-writable version of CD-ROM and can be written the data an unlimited number

of times.

— Since a reflected laser beam amount of the CD-R/RW is less than the reflected laser beam amount of the

conventional CD media, the CD player/changer may not play the CD-R/RW or have the sound jumped.

— Since the recording quality of the CD-R/RW vary widely, some CD-R/RW may not be played.

Recording method

• There are two methods for recording.

• Classification by recorder

— Record the audio data in the audio-CD by audio recorder

• The price of the audio recorder and original audio-CD includes the copyright fee.

— Recorded the audio data in the conventional data-CD by the personal computer

• The data-CD is cheaper than the audio-CD. But, there is a CD with the low quality.

• Classification by audio data uncompression/compression

— Uncompressed audio data

• The CD-R/RW player can play the uncompressed audio data.

— Compressed audio data

• It is possible to record the large quantity of music in a disc. The sound quality varies depends on the

audio data compression format. The compressed audio data can be played on the applicable player
only.

— Type of compression format:

• MP3: MPEG Audio Layer 3 — Mazda genie MP3 applicable CD player is available.

• WMA: Windows Media Audio

• ATRAG: Adaptive Transform Acoustic Coding

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SYMPTOM TROUBLESHOOTING [CD PLAYER/CHANGER]

09-03G–11

09-03G

MP3

• The following condition should be met in order to record the MP3-formatted data on the MP3 applicable CD

player:

End Of Sie

Media

Applicable to the CD-R/RW

Logical format

ISO 9660 level 1&2 / Joliet / Romeo

Number of directly

8 directly

Number of files

Maximum 255 as a total number of file and folder
Maximum 155 for folder

ID3 TAG

Applicable to Ver1.1, 2.3 and 2.4

File extension

MP3

Packet writing

Not applicable

Bit rate

8kbps— 320kbps/VBR

Sampling rate

11.025kHz— 48kHz

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Content .. 367 368 369 370 ..