Page 423 - Workshop Manual - Aumark (BJ1051)

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Diagnosis-audio system

Failure to receive radio broadcast or reception is poor

Diagnostic Procedure

1. Checking audio unit settings
(a) Ignition switch: ON.
(b) Depress power switch of audio unit.
(c) Turn up audio unit to above 5 VOL.
(d) Press “AM/FM” (band selection key) repeatedly to select frequency band “FM1”.
(e) Briefly press “∧” or “∨” (TUNE key) at left/right side to search radio stations
automatically.
Auto search function of audio unit is normal?
Yes > Replace CD or MP3 audio unit. 4
No > Go to step 2.
2. Checking antenna of audio unit
(a) Check if antenna has been stretched to its highest position.
(b) For covering of foreign materials.
(c) For bending and deformation.
Are check results normal?
Yes > Go to step 3.
No > Replace antenna. (Refer to “Chapter 56 Audio System-Antenna, Replacement”.)
3. Checking audio unit
(a) Ignition switch: OFF.
(b) Pull out antenna plug of sound system.

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