Simrad SD570, Operator'S Manual

Page: 118 / 128

Simrad SD570
4 850--160140 / A
3 TRANSCEIVER UNIT
3.1 Dust filter
There is a dust filter in the bottom of the Transceiver Unit. To
avoid overheating, this should be inspected, and if necessary,
cleaned once every third month.
The dust filter is accessible from the outside of the Transceiver
Unit, by unscrewing the eight finger nuts in the bottom of the
unit. The filter should be vacuum cleaned, or washed in soap
and water. If washed, the filter must be dried thoroughly before
being reinstalled.
3.2 Replacing fuses
The Transceiver Unit is fused with two 8A slow blow main fuses
(F201 and F202) located on the front of the Power Supply (see
figure 2). If one of the fuses are blown, the lamp L201 should
light and lamp L202 should be extinguished. If L201 does not
light, check the fuses of the ship’s main power system.
In addition, the High Voltage Unit is fused with two 8A slow
blow fuses (F204 and F205 in figure 2). If one of the fuses is
blown, the lamp L205 should light and lamp L206 should be
extinguished.
Spare fuses are located in the spare parts box.