5-16
Starmux IV
0023786_REV_C
5.0:
TROUBLESHOOTING
The following guide can assist the user in resolving a few common issues that may arise. If this guide does
not solve a particular problem, contact
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.
The rear panel VAC 5-amp fuse
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 dark.
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
CUSTOMER
SERVICE
The towfish is faulty.
Check the unit using a different
towfish.
The DISCOVER survey software
(if used on external topside)
reports, "Cannot ping Towfish."
LAN cable disconnected.
Check the LAN cable
connection.
The tow cable is disconnected.
Check the tow cable
connection.
Modem settings are incorrect.
Please contact
CUSTOMER
SERVICE
for modem settings.
The modem is disconnected
internally within the digital link.
Check all connections to the
modem are correct per the
wiring diagram.
