Autohelm Inboard Autopilots (ST6000 and ST7000 systems) Service ...

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AutohelmContentsPage1. Description 32. Dismantling 33. Re-assembly 34. Display Contrast Adjustment 45. Functional Test 76. Product History 97. Software History 98. Spares Numbers 9IllustrationsFig. 1. Z082 Control Unit General Assembly 5Fig. 2. LCD/Diffuser Assembly 62SeaTalk Service Manual
Autohelm1. DescriptionThe Z082 Control Unit is SeaTalk compatible and consists of a single PCB built usingsurface mount technology. It can be used with both 12V and 24V SeaTalk CourseComputers. The unit can also be functionally tested without the use of specialequipment using the procedure outlined in figure 3.2. Dismantling (ref fig 1.)Note: To prevent damage to the printed face of the unit all work should be carried outon a flat surface covered in foam rubber. A conductive surface will prove beneficial inhelping to prevent dust accumulation caused by static on the workbench.1. Unscrew and remove the 6 case securing screws from the rear cover. Push eachcable loom assembly back through its grommet so as to obtain working clearance tothe PCB (fig 1).Note: Failure to push the cables back to ease removal may damage the cable to PCBassembly. If cables are very tight in grommets apply a small smear of silicon greaseto outer sheath, (grease can be wiped off after reassembly).If removing the PCB assembly, it will be necessary to de-solder the cables from thePCB. Great care should be exercised when de-soldering so as not to damage thepads on the PCB.2. Unscrew and remove the 10 screws which secure the PCB to the facia.Note: Do not at this stage remove the screws which secure the LCD assembly to thePCB. (fig 2.).3. Before removing the LCD ensure that lint free and preferably anti static finger cotsare worn to prevent the LCD or elastomers getting dirty or greasy.4. Unscrew and remove the 8 LCD housing retaining screws, (fig 2.). Be careful tohold the LCD surround, LCD, and diffuser when dismantling. Lift away from the PCBand store carefully.3. ReassemblyReassembly is a straight reversal of the above procedure but note the followingpoints:1. Note the correct orientation of the various looms and core colours to the PCB pads(fig 1).2. Ensure the LCD is correctly orientated relative to the PCB (fig 2).3. Ensure the diffuser is correctly orientated relative to the LCD and PCB (fig 2).4. Always ensure the board is tightened down sequentially to ensure the load isevenly spread.SeaTalk Service Manual 3
Page 1 and 2: AutohelmAutohelm Inboard Autopilots
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Page 13 and 14: AutohelmUnsatisfactory Steering Per
Page 15 and 16: AutohelmWind Change AlarmWind Trim
Page 17 and 18: AutohelmAdjusting CalibrationIn cal
Page 19 and 20: Autohelm3. 5 Automatic Deviation Co
Page 21 and 22: Autohelm5. Track Control interfacin
Page 23 and 24: Autohelm6. Special functions.6.1 Di
Page 25: Autohelm7.1 Service Visit - Diagnos
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Page 32 and 33: AutohelmLCD Display Assembly6SeaTal
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Page 51 and 52: Autohelm4. Functional TestThe Cours
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Page 59 and 60: Autohelm4.3 Course Computer Bench T
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Autohelm18SeaTalk Service Manual
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AutohelmContentsPage1. Introduction
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Autohelm3. Operating/Calibration In
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AutohelmDisplay Key SequenceThe Dis
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AutohelmWatch Alarm (not available
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Autohelm3.2 Additional information
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Autohelm3.3 Operating HintsResponse
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Autohelm• If the autopilot fails
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Autohelm3.4.1 Adjusting Calibration
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Autohelm3.5 Automatic Deviation Cor
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Autohelmmessage indicates the ST600
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Autohelm7. Service visit to a vesse
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Autohelm1. Service ProceduresConten
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Autohelm5. Pull the loom assemblies
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Autohelm4. Z124 Control Unit Functi
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Autohelm5. Product History - Contro
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Autohelm1. Control Unit PCB Circuit
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AutohelmContentsPage1. Description
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AutohelmCourse Computers (Z083, Z08
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Autohelm4.1 Course Computer Bench T
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Autohelm5. Product History - Course
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Autohelm1. ST 6000 Course Computer
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Autohelm3. Operation with non Autoh
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Autohelm1. Type CR Interface Box PC
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AutohelmZ131 Rudder Reference Body
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AutohelmZ130 Fluxgate General Assem
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Autohelm6. Before installing the co
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AutohelmFig. 1. Rudder Reference Un
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Autohelm3. Product History Rudder R
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Autohelm4. Product History (Z080 Ma
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AutohelmZ050 Mount Assembly6SeaTalk
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AutohelmContentsPage1. Linear Drive
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AutohelmSlide off the carrier assem
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Autohelm* No load current limits :-
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Autohelm7. Product History Type 2 L
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AutohelmContentsPage1. Rotary Drive
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Autohelmb) When rebuilding the clut
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AutohelmContentsPage1. Hydraulic Dr
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Autohelmc) If the relief valve asse
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Autohelm3. Reversing Gear Pumps (Z0
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Autohelm4. Type'0'Piston Pump (Z081
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AutohelmContentsPage1. I/O Drive Un
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Autohelm4. Spares numbers - I/O Ste
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Autohelm- Position the support plat
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Autohelm Inboard Autopilots (ST6000 and ST7000 systems) Service ...

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