D.8.11 Checking The Transmitter Board - Klein 5000 SERIES Operation And Maintenance Manual

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D-48

APPENDIX D General Setup, Configuration and Troubleshooting

The +5 volts is generated by 3 voltage regulators. Check for +5 VDC at U27, pin

3; U25, pin 3; and U31, pin 3 for the optional laser. TP 2 may be used as a

reference ground. Check for -5 VDC at pin 3 of U26. TP 2 may be used as a

reference ground.

Some useful test points and waveforms are shown in Figure D-23.

D.8.11 Checking the Transmitter Board

By probing on the Multiplexer board you can check that the Transmitters are

working. Probe each transmitter trace as shown in Figure D-24 on page D-50, and

you should see a scope trace similar to the one shown in the figure. You can

change the pulse width to 100 µsec and back to 50 µsec on the System 5000

Control tab of the Sonar Interface dialog box. If you do not see anything on the

altimeter transmitter, check that it is turned on by sending an Altimeter ON

command, $TA1, to the towfish. The command is sent from the Towfish

Diagnostics tab.

D.8.12 Checking the Receiver Boards

If your sonar image seems to be having problems on one side, this is an indication

that you may have a receiver problem. Try swapping the receiver boards and see if

the problem follows the board.

Series 5000 Sonar System Operations and Maintenance Manual

Figure D-22:

The Multiplexer Board

P/N 11210060, Rev. 16

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