Seiwa Si-Tex MDA3 - Manual (Page 18)

Troubleshooting
Page 15
5 Troubleshooting
If the guidance given in the table above does not rectify the problem you are experiencing please contact your dealer for further
assistance.
Issue Possible cause and remedy
Power indicator not illuminated Check power supply connections and fuse or circuit breaker
Check polarity of power supply connections
Check power supply voltage
'VHF' indicator does not illuminate when
VHF Radiotelephone is transmitting Check the antenna output of the VHF Radiotelephone is connected to the antenna
splitter input labelled 'VHF'
'AIS' indicator does not illuminate when
AIS transceiver is transmitting Check the antenna output of the AIS transceiver is connected to the antenna
splitter input labelled 'AIS'
Clicks or pops are heard from a connected
FM broadcast receiver This is normal and may occur during VHF or AIS transmission
VHF or AIS transmission range is reduced A small reduction in transmission range is normal and due to the insertion loss of
the antenna splitter
Both the ‘AIS’ and ‘VHF’ indicators illuminate
when the VHF radio is transmitting This is normal operation with some brands of VHF radio and not a fault. Function of
the antenna splitter is unaffected