Mazda CX 7. Manual — part 365

SYMPTOM TROUBLESHOOTING [RADIO]

09-03E–11

09-03E

Remarks

• Signals tend to reach longer distances at night. It is conspicuous in AM signals, several audio functions may

stop due to foreign broadcasting station or noise. Though the audio system restrains sensitivity of SEEK and
SCAN functions at night, the audio system may select other than desired broadcasting station when signals are
considerably strong. This function is linked to the parking light. When the parking light or headlight is turned on,
SEEK and SCAN may not function for weak signals.

End Of Sie

530

A st.

B st.

C st.

D st.

E st.

F st.

G st.

H st.

I st.

J st.

1710

A

530

A st.

B st.

C st.

D st.

E st.

F st.

G st.

H st.

I st.

J st.

1710

A

B

A: The level that AUTO-M, SEEK, SCAN function.
AUTO-M, SEEK, and SCAN tune to 4 broadcasting stations (C, E, H, and J)

Daytime

Night

When the TNS is turned on: 4 broadcasting
stations are tuned, just like daytime.

When the TNS is turned off: As signal strength is higher at night, AUTO-M, SEEK, and
SCAN tune to 10 broadcasting stations (A to J st.).

Frequency (kHz)

Signal strength

Signal strength

Frequency (kHz)

acxuuw00001937

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SYMPTOM TROUBLESHOOTING [CASSETTE TAPE PLAYER]

09-03F–1

09-03F

09-03F SYMPTOM TROUBLESHOOTING [CASSETTE
TAPE PLAYER]

FOREWORD

[CASSETTE TAPE PLAYER] . . . . . . . . 09-03F–1

Troubleshooting Index . . . . . . . . . . . . . 09-03F–1
Quick Diagnostic Chart

(Cassette Tape Player). . . . . . . . . . . . 09-03F–2

NO.1 NO SOUND FROM THE

CASSETTE TAPE
[CASSETTE TAPE PLAYER] . . . . . . . . 09-03F–2

NO.2 CASSETTE TAPE PLAYER

DOES NOT EJECT THE CASSETTE
TAPE[CASSETTE TAPE PLAYER]. . . . 09-03F–3

NO.3 CASSETTE TAPE PLAYER

DOES NOT LOAD THE CASSETTE
TAPE[CASSETTE TAPE PLAYER]. . . . 09-03F–3

NO.4 CASSETTE TAPE PLAYER

EJECTS THE CASSETTE TAPE
IMMEDIATELY
[CASSETTE TAPE PLAYER] . . . . . . . . . 09-03F–4

NO.5 WAVERING SOUND AND/OR

POOR SOUND QUALITY OF THE
CASSETTE TAPE
[CASSETTE TAPE PLAYER] . . . . . . . . . 09-03F–4

NO.6 THERE IS A NOISE WHEN

PLAYING THE CASSETTE
TAPE PLAYER
[CASSETTE TAPE PLAYER] . . . . . . . . . 09-03F–5

NO.7 POOR SOUND QUALITY

(POOR TREBLE SOUND)
[CASSETTE TAPE PLAYER] . . . . . . . . . 09-03F–5

NO.8 ABNORMAL SOUND OF THE

CASSETTE TAPE
(PLAY BACKWARDS)
[CASSETTE TAPE PLAYER] . . . . . . . . . 09-03F–6

End of Toc

WM: AUDIO UNIT

FOREWORD[CASSETTE TAPE PLAYER]

id0903e4804900

Troubleshooting Index

No.

Symptom

Possible DTC

1

No sound from the cassette tape

00:Er01, 00:Er03, 00:Er10

2

Cassette tape player does not eject the cassette tape

00:Er01, 00:Er04, 00:Er10

3

Cassette tape player does not load the cassette tape

00:Er01, 00:Er10

4

Cassette tape player ejects the cassette tape immediately

00:Er04, 00:Er10

5

Wavering sound and/or poor sound quality from the cassette tape

—

6

There is a noise when playing the cassette tape player

—

7

Poor sound quality (Poor treble sound)

—

8

Abnormal sound from the cassette tape (Reverse playback)

—

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SYMPTOM TROUBLESHOOTING [CASSETTE TAPE PLAYER]

09-03F–2

Quick Diagnostic Chart (Cassette Tape Player)

End Of Sie

NO.1 NO SOUND FROM THE CASSETTE TAPE[CASSETTE TAPE PLAYER]

id0903e4805000

Diagnostic procedure

End Of Sie

No sound from the cassette tape

Cassette tape pla

y

er does not eject the cassette tape

Cassette tape pla

y

er does not load the cassette tape

Cassette tape pla

y

er ejects the cassette tape immediately

W

a

v

e

ring sound and/or poor sound quality of the cassette tape

There is a noise when pla

ying the cassette tape pla

y

e

r

P

oor sound quality (P

oor treb

le sound)

Abnor

mal sound from the cassette tape (Re

v

erse pla

ybac

k)

1

2

3

4

5

6

7

8

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Troubleshooting item

Possible factor

Tape head gathers oxide residue from cassette tape

Cassette tape is malfunctioning

Cassette tape player is malfunctioning

Cassette patch is broken

Poor installation of cassette patch

Poor connection of cassette tape player connector

Dolby noise reduction is used improperly

The after-market electrical parts interfere with the audio system

X: Applicable

acxuuw00000949

1

No sound from the cassette tape/Possible DTC: 00:Er01, 00:Er03, 00:Er10

Troubleshooting hints

• Tape head gathers oxide residue from cassette tape

• Cassette tape is malfunctioning

• Cassette tape player is malfunctioning

STEP

INSPECTION

ACTION

1

• Replace with the cassette tape known to be

good.

• Does the cassette tape player sound?

Yes

The cassette tape player is normal. Explain to the customer
that the cassette tape is malfunctioning.

No

Go to the next step.

2

• Clean the tape head using a good quality

head-cleaning tape.

• Does the cassette tape produce sound?

Yes

Explain the repairs (head cleaning) to the customer.

No

Replace the cassette tape player.

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