Furuno FA-150, Installation Manual

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VSS-V2 Technical Manual
A100K11209 v.1.3
8 Troubleshooting
8.1 All 8 microphone fault indication LEDs are
flashing.
● This can be due to the microphone preamplifier not being powered
correctly.
● Make sure that the cables are properly connected.
8.2 Wrong direction estimation
● Verify that the microphone unit is connected in the correct direction,
with the part marked F in front.
● Check that the cables from the microphone preamplifier are
connected correctly to master PCB.
● Cabling MUST be 1 to 1, otherwise the wrong direction will be
shown.
● Verify that the unit is not in close proximity to obstacles that are able
to reflect large portions of the sound back to the microphones.
8.3 Green status diode is flashing
● The microphone is not responding, the system is in override status or
DSP is not answering.
8.4 No background light
● Check whether DIP switch S1 / switch 4 is set to ON.
8.5 No sound in the speaker during detection
● Press the Override button to on and check the sound in the speaker.
-If there’s still no activity, check the cable from the speaker to the
PCB.