Installation manual

Simrad SD570

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 dustfilter isaccessiblefrom the outsideof 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

andwater.Ifwashed,thefiltermustbedriedthoroughlybefore

being reinstalled.

3.2 Replacing fuses

TheTransceiverUnitisfusedwithtwo8Aslowblowmainfuses

(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.