Mazda CX-7 2007 Workshop Manual page 1447

09-03E SYMPTOM TROUBLESHOOTING [RADIO]
FOREWORD[RADIO] . . . . . . . . . . . . . . . 09-03E–1
Troubleshooting Index . . . . . . . . . . . . . 09-03E–1
Quick Diagnostic Chart (Radio) . . . . . . 09-03E–2
CONFIRMATION STEP 1: RECEPTION
CONDITION SYMPTOM (EXAMPLE)
[RADIO] . . . . . . . . . . . . . . . . . . . . . . . . . 09-03E–2
CONFIRMATION STEP 2: ANTENNA
SYSTEM SYMPTOM (EXAMPLE)
[RADIO] . . . . . . . . . . . . . . . . . . . . . . . . . 09-03E–3
CONFIRMATION STEP 3: ANTENNA
SYSTEM SIMPLE INSPECTION
[RADIO] . . . . . . . . . . . . . . . . . . . . . . . . . 09-03E–3
NO.1 NO RADIO RECEPTION
(AM/FM)/NO OR LOW VOLUME
[RADIO] . . . . . . . . . . . . . . . . . . . . . . . . . 09-03E–3
NO.2 NOISE FROM RADIO (AM ONLY)
[RADIO] . . . . . . . . . . . . . . . . . . . . . . . . . 09-03E–5
End of Toc
WM: AUDIO UNIT FOREWORD[RADIO]
Note
• l If the case location, time, and broadcasting station etc. can be specified through interview with the
customer, there is the possibility that the signal reception environment is the cause of the problem.
• Perform confirmation of symptom and evaluation under conditions that customer reported (location, time,
broadcasting station etc.). If not possible, perform it under equivalent conditions.
• Before inspection or repair, record the broadcasting stations that customer preset and reset them
accordingly after the inspection or repair. Adjust the clock too.
Troubleshooting Index
No.
1 No radio reception (AM/FM)/No or low volume
2 Noise from radio (AM only)
3 Noise from radio (FM only)
4 Cannot tune (SEEK does not stop)
5 Cannot preset (preset function does not operate)
6 Reception frequency of radio slips
SYMPTOM TROUBLESHOOTING [RADIO]
Symptom
NO.3 NOISE FROM RADIO (FM ONLY)
[RADIO] . . . . . . . . . . . . . . . . . . . . . . . . . 09-03E–6
NO.4 CANNOT TUNE (SEEK DOES
NOT STOP)[RADIO] . . . . . . . . . . . . . . . . 09-03E–8
NO.5 CANNOT PRESET (PRESET
FUNCTION DOES NOT OPERATE)
[RADIO] . . . . . . . . . . . . . . . . . . . . . . . . . 09-03E–9
NO.6 RECEPTION FREQUENCY OF
RADIO SLIPS[RADIO] . . . . . . . . . . . . . . 09-03E–9
REFERENCE[RADIO] . . . . . . . . . . . . . . . 09-03E–10
1. Multipath Noise . . . . . . . . . . . . . . . . . 09-03E–10
2. Flutter/Skip Noise . . . . . . . . . . . . . . . 09-03E–10
3. Stereo and Monaural Receptions . . . 09-03E–10
Measures in Audio System . . . . . . . . . . 09-03E–10
Effect Setting of Separation Control and
High Tone Control . . . . . . . . . . . . . . . . 09-03E–10
09:Er20, 09:Er22
09:Er22
09:Er22
09:Er20, 09:Er22
21:Er19
09:Er22
id0903e3803900
Possible DTC
09-03E–1
09-03E