77 | Maintenance
F1-F5
F6-F10
5.8 Fuse Replacement
• WARNING
• When checking fuses, turn "OFF" the power switch on the operating panel and further disconnect the power
cable from the ship’s distribution board before checking fuses.
Replace a fuse when it has blown according to the following procedure.
1.
Turn OFF the power switch on the operating panel.
Note
Confirm that the voltage at terminal TB3 is zero. To confirm this, perform action as in described in
paragraph 5.4.1
Alarm code 1:
Power Supply Failure
.
2.
Disconnect the
power supply from the ship’s distribution board and the emergency power supply of this system.
3.
Investigate the cause of the fuse blowing. It will occur again unless the cause is resolved.
4.
See below table with their description and below image for their location.
Note
All fuses are
∅
5.2x20mm.
5.
Press and turn the fuse holder counterclockwise to open it.
6.
Replace the blown fuse with a new fuse and close the holder by turning it clockwise.
Fuse No.
Capacity
Signal
Description
F1
1A
1R24+
Power supply for ch. 1
serial repeater
F2
2R24+
Power supply for ch. 2
serial repeater
F3
3R24+
Power supply for ch. 3
serial repeater
F4
4R24+
Power supply for ch. 4
serial repeater
F5
ST15
Power supply for ch. 1
step motor repeater
F6
10A
24M+
24VDC Main power
supply
F7
3.15A
24B+
24VDC Power supply for
Control unit
F8
10A
24R+
24VDC Power supply for
repeaters (Main fuse)
F9
10A
24BT+
Battery power supply
(standard type)
F10
1A
Unused
Unused
Summary of Contents for ALPHAMIDICOURSE Mk2
Page 80: ...80 Appendices 6 1 1 Dimensions of Control Unit...
Page 81: ...81 Appendices 6 1 2 Dimensions of Master Compass...
Page 82: ...82 Appendices 6 1 3 Master Compass without housing...
Page 84: ...84 Appendices 6 1 5 Connection Diagram...
Page 85: ...75 Appendices 6 1 6 Cable Diagram...
Page 86: ...76 Appendices 6 1 7 Installation Drawing...
Page 88: ...78 Appendices AlphaMidiCourse Mk2 Check Maintenance Sheet...
Page 89: ...79 Appendices AlphaMidiCourse Mk2 Check Maintenance Sheet...
Page 90: ...80 Appendices AlphaMidiCourse Mk2 Check Maintenance Sheet...
Page 91: ...81 Appendices AlphaMidiCourse Mk2 Check Maintenance Sheet...
Page 92: ...82 Appendices AlphaMidiCourse Mk2 Check Maintenance Sheet...
Page 95: ...85 Appendices 6 4 Return Slip Sensitive element...
Page 96: ...86 Appendices...
Page 99: ......