Klein Marine Systems, Inc. HydroChart 5000, Operation And Maintenance Manual

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A-4
APPENDIX A General Setup, Configuration and Troubleshooting
HydroChart 5000 Sonar Operations and Maintenance Manual P/N 11210080, Rev. 02
A.4 Sonar Head Unit
The Sonar Head Unit is shown in Figure A-2.
A.4.1 Checking the Telemetry Link to the Sonar Head Unit
Turn the TPU. The SYS READY indicator should flash. Then after approximately
1 minute, the T/F POWER indicator should turn on, the SYS READY indicator
should stop flashing and remain on, and the STATUS TRIGGER indicator should
begin flashing at the ping rate of the sonar.
A.4.2 Checking the Transmitters before Deployment
Each transducer assembly contains separate transmitter and receiver arrays. Each
transmitter array (one port, one starboard) is driven by one transmitter circuit.
Figure A-2:
Sonar Head Unit
NOTE
The transmit transducers are electrically shielded. For this reason,
it is difficult to localize the source (port or starboard) of the waveform
picked up by the probe. To distinguish between the port and starboard
transmitters, ground the oscilloscope probe to the Sonar Head Unit skin while
searching near the middle of each transducer assembly for the signal.