Installation manual

Introduction

851--160117 / B

5 THE TRANSCEIVER UNIT

5.1 Starting up the Transceiver Unit

j Remove the fuses F204 and F205 on the HV power unit

(refer to figure 1).

j Start up the Transceiver Unit by setting the service

switch S202 on the power supply to SERVICE position

(refer to figure 1).

j CheckthatthefansarestartingandthatthelampsL201,

L202, L203, L204 on the power supply illuminate.

j Check that only L205 on the HV power unit illuminates.

j Check that the following small LEDs on the Transceiver

Interface Board (TIB) illuminate (refer to the indication

on the front of the power supply):

+8 V, -8 V, +5 VA, - 5 VA, +5 V, +12 V, - 12 V, +24 V and +24

V stand-by

j Switch off the Transceiver Unit by setting the service

switch S202 on the power supply to NORMAL position.

j Start up the Sonar Control Unit in the wheelhouse by

pressing the ON/OFF--HOIST button.

j Checkthat theTransceiver Unitstartsup,andthatafter

some seconds the two LEDs on the top of the SPB--31

circuit board start blinking. SPB--31 is located as circuit

board no. 2 on the left--hand side of the power supply.

j Switch off the Sonar Control Unit and check that the

Transceiver Unit is switched off.