6-64
2050-DSS Side Scan and Sub-Bottom System
0024048_REV_A
6.0
TROUBLESHOOTING
In the unlikely event that the system requires troubleshooting, this section provides instructions for
disassembling and reassembling the unit, along with tips for identifying and correcting operational
problems.
For questions or guidance with using this section, contact
6.1
Starmux IV Troubleshooting
SYMPTOM
PROBABLE CAUSE
CORRECTIVE ACTION
The green PWR indicator does
not illuminate when the unit is
turned on.
The POWER switch in the front
or rear of the unit is not turned
on.
Verify that both POWER
switches are on.
No AC power.
Verify that the Starmux IV is
connected to AC power. Check
the AC power source. Verify
that the fuse is good.
5-amp fuses on rear panel VAC
connection are bad.
Check fuses for continuity.
Replace if necessary.
The indicator is not operating.
Open the unit and check the
indicator LED and wiring.
The 375 VDC 2.5A fuse mounted
to the rear panel is bad
Check the fuse for continuity.
Replace if necessary.
The green LAN indicator does
not illuminate when the unit is
turned on.
There is no connection between
the digital link and the external
topside processor.
Check the LAN connections
between the STARMUX IV unit
and the topside processor.
The indicator is not operating.
Open the unit and check the
indicator LED and wiring.
The green LINK indicator on the
Starmux IV continues to flash
after several minutes, and no
LINK is established.
The tow cable between the
digital link and the tow vehicle
is disconnected or faulty.
Check connections and tow
cable.
Modem settings on the digital
link are incorrect.
Contact
Towfish is faulty.
Check the unit using a different
towfish.
