Troubleshooting; No Response; No Valid Data - Simrad HS52 Instruction Manual

Simrad HS52 GPS compass and DGPS navigator
5.4

Troubleshooting

58
A GPS compass is a complex system and performance is
dependent of a proper installation and a successful sea trial.
In case of a failure, the user will be helped by the Display unit,
which contains several test features that will assist you in
isolating a probable fault.
Pressing any button resets the audible alarm. The visual alarm
will remain and alternate with the operating display until the
fault has been rectified. Refer to the table below for hints and try
to solve the problem yourself, or consult your nearest Simrad
dealer for assistance.
The next sections contain some hints for troubleshooting.

No Response

In normal operation it takes about one minute from the Display
unit is powered on until information appears in the display. If
the display screen is still black after three minutes from power
on, do as follows:
• Check the power connection to the Processing unit and check
that the Processing unit is supplied with the correct voltage.
See power specifications on page 8.
• Check that the fuse on the Processing unit is not blown. This
fuse is located behind the power terminal block P400 and is
marked F400. A spare fuse is available beside it and its
location is marked F401.
• Press the POWER button on the Display unit, two or three
times in case of poor connection.
If there is still no information on the display, consult your
nearest Simrad dealer for assistance.

No Valid Data

In normal operation it can take up to 15 minutes from the
Display unit is powered on to full accuracy on all data is
obtained, and the indicators showing valid data. If all the
indicator boxes are still white after 15 minutes from power on,
then do as follows:
• Check if the Sensor unit cable is properly connected to the
Processing unit. Check also that the junction of the
connectors on this cable is properly connected. If not, switch
off the power and connect the cable and connectors properly
and power on the unit again.
20222360 / E