Raytheon 138-119, Operator'S And Service Manual

Page: 41 / 55

COMPASS
STD22
Change Over Box
138--119
35
3769DOC000002
Edition: April 06, 2005
5.2.2
Trouble shooting in a STD 22 Gyro Compass System
The Change Over Box accomplishes a defined task within a complete STD22 Compass
system.
Failures in other parts of the equipment have an effect on the complete system.
By this a trouble shooting makes only sense under consideration of the complete compass
system.
5.2.3 Fuses in the Change over Box
At the terminal board of the Change over Box 13 terminal are protected with fuses (see
also appended wiring diagram).
Terminal/Application Fuse
(1) Supply Voltage
Change over Box
E1 6,3 A 250 V
(2) Supply voltage
Change over Box
E2 6,3 A 250 V
3 Supply voltage
Repeater
E3 1 A L 250 V
4 Supply voltage
Repeater
E4 1 A L 250 V
5 Supply voltage
Repeater
E5 1 A L 250 V
6 Supply voltage
Repeater
E6 1 A L 250 V
7 Supply voltage
Repeater
E7 1 A L 250 V
8 Supply voltage
Repeater
E8 1 A L 250 V
9 Supply voltage
Receiver
E9 1 A L 250 V
10 Supply voltage
Repeater
E10 1 A L 250 V
11 Supply voltage of
additional receivers
E11 2 A L 250 V
12 Supply voltage of
additional receivers
E12 2 A L 250 V
13 Supply voltage of
additional receivers
E13 2 A L 250 V