Sperry Marine Rudder Angle Indicator System, Operation, Installaion And Service Manual

Page: 56 / 116

056357/B RAIS
7-2 General Troubleshooting Instructions
Location of Parts on the Rudder Angle Calibrator PCB
Figure 7-1 below shows the locations of connectors and diagnostic LED
indicators on the RAC.
Figure 7-1:
Location of parts
on the
RAC PCB
Terminal Boards and Connectors
Table 7-1:
Terminal boards
and connectors
Exchangeable Components
Table 7-2:
Exchangeable
components
TB 1 TB 2
CR 34 CR 20 CR 17 J 3 CR 4
CR 33 CR 29 CR 23 CR 16
CR 13
CR 12 CR 9 CR 28
K 2 K 1
Function
TB 1 24 VDC supply power in, feedback unit supply out, feedback
signal in, “Pwr. Fail. / Gen. Alarm” status relay out
TB 2 RAI signal and illumination outputs, RS-422 in, RS-422 out 1
and 2, “Spare” status relay out
J 3 USB service interface connector
Part Function
K 1 photocoupler/photo relay;
“Spare” status output contact closure
K 2 photocoupler/photo relay;
“Pwr. Fail / Gen. Alarm” status output contact closure