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xvi
3.14.1.29 Config. 64: 4125i + 15 lb. Keel Weight, A302799 Cable - 400m Long ....................... 3-79
3.14.1.30 Config. 66: 4125i + 15 lb. Keel Weight, A302799 Cable - 600m Long ....................... 3-80
3.14.1.31 Config. 68: 4125i + Depressor Wing, A302799 Cable - 100m Long ........................... 3-81
3.14.1.32 Config. 71: 4125i + Depressor Wing, A302799 Cable - 400m Long ........................... 3-82
3.14.1.33 Config. 73: 4125i + Depressor Wing, A302799 Cable - 600m Long ........................... 3-83
3.14.1.34 Config. 75: 4125i + 15 lb. Keel Wt. + Dep. Wing, A302799 Cable - 100m ................. 3-84
3.14.1.35 Config. 78: 4125i + 15 lb. Keel Wt. + Dep. Wing, A302799 Cable - 400m ................. 3-85
3.14.1.36 Config. 80: 4125i + 15 lb. Keel Weight + Dep. Wing, A302799 Cable - 600m ............ 3-86
3.15
Towfish Recovery................................................................................................................ 3-87
4.0
MAINTENANCE ......................................................................................................................... 4-88
4.1
Cleaning the 4125i System .................................................................................................. 4-88
4.1.1
Inspecting and Cleaning the Connections ....................................................................... 4-88
4.2
Rearming the Towfish ......................................................................................................... 4-89
5.0
TROUBLESHOOTING ................................................................................................................. 5-90
5.1
Restoring the Operating System to the Hard Drive .............................................................. 5-90
5.2
Disassembling and Reassembling the Towfish ..................................................................... 5-90
5.2.1
Disassembly ................................................................................................................... 5-90
5.2.2
Reassembly .................................................................................................................... 5-94
5.3
Calibrating the Compass ..................................................................................................... 5-94
5.3.1
Changing the Angle of Declination ................................................................................ 5-102
5.4
General Troubleshooting .................................................................................................. 5-106
5.5
4125i-P Topside Processor Troubleshooting ...................................................................... 5-107
5.6
4125i Towfish Troubleshooting ......................................................................................... 5-107
5.7
Tow Cable Inspection ........................................................................................................ 5-110
5.7.1
Locating a Shorted Conductor ...................................................................................... 5-110
5.7.2
Locating an Open Conductor ........................................................................................ 5-111
5.7.3
Locating a Resistance Breakdown ................................................................................. 5-111
5.7.4
Damaged Tow Cable Connector ................................................................................... 5-111
5.8
SYSTEM RESTORE .............................................................................................................. 5-112
5.9
PRINTERS .......................................................................................................................... 5-113
5.10
4125i AND 4125 SPARE KITS .............................................................................................. 5-114
4125i/4125 SIDE SCAN SONAR SYSTEM
0004823_REV_G
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Table of Contents
Troubleshooting
