MAQ SONAR 22KHz, Technical And Installation Manual

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LED2 Flashing
Indicates
KA1849 is receiving message from Processor Unit KA1849 PCB.
(this will vary with range scales and should match the rate of the Trans LED on the
KA1872 board)
-
If not flashing in synchronization with KA1872 LED1 check cable connection
KA1837 Interface cable.
- Replace KA1849 (Interface Board)
-
Replace KA1837 (Interface Cable)
-
Replace motherboard in Processor KA1896
- Replace motherboard in Transceiver KA1897
LED3 Flashing
Indicates
KA1845 has transferred message from KA1849 and understands the message.
-
If not Flashing ensure correct software revisions.
- Replace KA1845
-
Replace motherboard
LEDS4
KA1890 (32) Lights all flashing Indicates transmitters are operating properly and there are
no damaged channels. (Transmitter channels are damaged when transducers are
damaged) (LEDs flash rate must match 1845 LED flash rate).
-
If no lights on the KA1890 are flashing check High Voltage switch is set to ON
- If some lights are not flashing disconnect transducer and replace board if all
lights are still not flashing. Individual Channel Boards can also be replaced.
Typically Fuse is blown on channel boards if they have failed.
- Replace Power Supply KA1817
-
Replace motherboard
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