Klein Marine Systems, Inc. HYDROCHART 3500, Operation And Maintenance Manual

Page: 61 / 86

6-1
CHAPTER 6: S
YSTEM
T
ROUBLESHOOTING
This chapter includes a few troubleshooting recommendations that should be
followed if operational problems occur with the HydroChart 3500 Sonar System.
6.1 Topside Interconnect Unit Troubleshooting
If when turning on the TIU, the power/transmit indicator does not illuminate, or in
about 45 seconds, begin flashing, turn off the TIU, and then do the following:
1.
Turn off the TIU and disconnect the AC or the DC power cable.
2.
Check the power source with a digital multimeter and verify that the voltage is
correct.
3.
Reconnect the power cable to the TIU and to the power source.
4.
Turn on the TIU and check the power/transmit indicator. If it still does not
illuminate, or after about one minute, begin flashing, turn off the TIU and
disconnect it from the power source.
5.
Disconnect the deck cable from the T/F connector of the TIU and the jumper
cable connector on the Sonar Head Unit.
6.
Reconnect the deck cable to the TIU and to the jumper cable connector,
making sure each connection is tight and secure.
7.
Reconnect the power cable to the TIU and to the power source.
8.
Turn on the TIU and check the power/transmit indicator. If it still does not
operate properly, refer to “Deck Cable Troubleshooting” below and check the
deck cable.
6.2 Deck Cable Troubleshooting
Before checking the deck cable, perform the troubleshooting procedure for the
TIU as described above. If the power/transmit indicator still does not illuminate, or
in about 45 seconds, begin flashing, then do the following:
1.
Turn off the TIU and disconnect the AC or the DC power cable.
2.
Disconnect the deck cable from the T/F connector of the TIU and the jumper
cable connector on the Sonar Head Unit.
3.
Check the underwater connector of the deck cable for debris and thoroughly
clean the connector sockets.