PRE-RELEASE
Fault diagnosis, no bass sound (loudspeakersin doors)
| Fault diagnosis, no bass sound (loudspeakers in doors) |
Fault symptom
No bass sound (loudspeakers in doors)Diagnostic procedure
| 1. |
Check that the DIN
cable is connected to the extra amplifier and the radio.
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| 2. |
Check that the extra amplifier's connector is plugged in and that battery
voltage (+30) is present on pin 2 of the connector.
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| 3. |
Check the grounding point by taking a resistance reading across pin 1 of the 2-
pin connector and a good grounding point. The resistance should be < 1 ohm.
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| 4. |
Check that the loudspeaker connectors are plugged in.
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| 5. |
Check the wiring between the loudspeakers and the amplifier. The resistance
should be < 1 ohm.
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| 6. |
Check the speaker coils by taking a resistance reading across the connecting
pins of the speakers. For test readings, see
.
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| 7. |
Check the wiring between the amplifier and radio.
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| 8. |
Continue on
.
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