Thrane&Thrane TT-6222A VHF DSC, User Manual

Page: 65 / 90

Chapter 3: Service & maintenance
Troubleshooting guide 51
33333
Service & maintenance
Troubleshooting guide
Action Symptom Remedy
The radio
will not turn
on The display is
empty. Check if power is present.
Check fuse which is placed in the power connector.
Check performance of power supply if connected to
one.
No commu-
nication The loud-
speaker is
mute. Check the antenna installation.
Check antenna cable.
Check handset/Handmicrophone and cable.
GPS Position
requested. Check the GPS input is correct. For setting GPS
input see
System setup on page 42.
If the VHF, despite being connected to a
GPS/position source, prompts for entering the
position and time information, the automated
update has most likely been lost either due to
missing data on the line, broken cabling or the
GPS/position source has failed. Refer to the
installation section in the back of this manual for
installation and connection details.
Until the automatic position update from
GPS/position source is restored position and time
must be entered manually when prompted by a
(four hour) timer in VHF.
In the DSC SETUP , Position Info , you can verity the
position data. If data is present Lat/Lon/UTC will be
displayed.