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Summary of Contents for AUTOHELM Z219
- Page 1 ST80 Active Wind Transducer D2720-1 Z219 ST80 Active Wind Transducer Service Procedures ST80 Active Wind Service Procedures 83067-1 1...
- Page 2 CE requirements. Incorporation, use or attachment, by any means, of parts or components not supplied for or not approved for such use by Autohelm or, if supplied or approved for use by Autohelm, not properly fitted in accordance with...
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Page 3: Table Of Contents
PL1 (Wind Vane) ..............14 PL2 (Anemometer) ............14 7.3 Signal Processing ............15 Microprocessor..............15 Autohelm ASIC ..............15 8. PCB Details ..............17 8.1 PCB Layout ..............17 8.2 PCB Component Lists ............19 Anemometer PCB, Components......... 19 Vane PCB, Components............. - Page 4 ST80 Active Wind Transducer Main PCB, Surface Mount Components, underside ....19 Main PCB, Conventional Components, underside ....20 Illustrations Figure 1 Exploded View ............... 8 Figure 2 Test Equipment Connection..........9 Figure 3 Block Diagram ............16 Figure 4 Component Layout ............17 Figure 5 Circuit Diagram ............
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Page 5: Description
1. Description This section of the Maintenance Manual covers the servicing procedures for the ST80 Active Wind Transducer, Product Code Z219. The transducer measures wind speed and direction using an anemometer cup assembly and a wind vane, each mounted on independent shafts at either end of a pod containing electronic circuitry. -
Page 6: Disassembly
ST80 Active Wind Transducer 3. Disassembly Refer to Figure 1, Exploded View. When handling any of the PCBs, linen or other suitable material ( not nylon) gloves should be worn if an anti - static mat and grounding strap are not used. -
Page 7: Assembly
ST80 Active Wind Transducer 4. Assembly Refer to Figure 1, Exploded View. When handling any of the PCBs, linen or other suitable material ( not nylon) gloves should be worn if an anti - static mat and grounding strap are not used. -
Page 8: Figure 1 Exploded View
ST80 Active Wind Transducer Screen Yellow Ribbon connector detail Open position 1. Wind vane Closed position 2. Wind vane head 3. 'O' ring (2 off) 4. Nut 5. Ribbon cable 6. SeaTalk cable 7. Main PCB 8. Body 9. Anemometer head 10. -
Page 9: Functional Test
ST80 Active Wind Transducer 5. Functional Test 5.1 Preliminary Inspection Before testing, inspect the equipment for physical damage (cracked or broken case, bent/corroded/burnt connector pins, etc.). Clean off any grease, dirt or deposits in or on the equipment. Check for signs of water ingress. Check for damage to the pod PCB, in particular, overheating on the power supply input pins and PCB tracks. -
Page 10: Functional Test Flowchart
ST80 Active Wind Transducer 5.3 Functional Test Flowchart CONNECT POWER AND SWITCH ON. SET APPARENT WIND SPEED CHECK DISPLAY SHOWS ZERO SPEED, NOT BLANK OR DASHES 00.0 CHECK CONNECTING CABLES CHANGE PCB & RESTART CORRECT FAULT & RESTART ROTATE ANEMOMETER, CHECK LCD RESPONDS BY INDICATING A WIND SPEED CHECK CONNECTING... -
Page 11: Spares Numbers
ST80 Active Wind Transducer 6. Spares Numbers Item Cat. No. Part No. Comments 30m Extension D252 Cable 50m Extension D253 Cable Anemometer Pod Q140 Sub-Assembly Vane Pod Q141 Sub-Assembly PCB Sub-Assembly Q142 Anemometer W062 Vane W063 Arm Sub-Assembly W064 ST80 Active Wind Service Procedures 83067-1 11... -
Page 12: Circuit Description
ST80 Active Wind Transducer 7. Circuit Description Refer to Figure 3, Block Diagram and Figure 5, Circuit Diagram. Two sensor PCBs (round boards) feed the main PCB. Interconnection and elements on the round boards are shown in the bottom right corner of the block diagram. -
Page 13: External Signals
7.2 External Signals SeaTalk SeaTalk signals carried by the yellow lead of the SeaTalk cable are routed directly to the Autohelm ASIC IC5. Diode D2 placed across the data line and 0V provides limited protection against lightning strikes. Incoming signals are converted by the ASIC from SeaTalk duplex line format to SeaTalk DATA IN format for the microprocessor. -
Page 14: Connector Signals (Main Pcb)
ST80 Active Wind Transducer 7. Circuit Description Refer to Figure 3, Block Diagram and Figure 5, Circuit Diagram. Two sensor PCBs (round boards) feed the main PCB. Interconnection and elements on the round boards are shown in the bottom right corner of the block diagram. -
Page 15: Signal Processing
7.2 External Signals SeaTalk SeaTalk signals carried by the yellow lead of the SeaTalk cable are routed directly to the Autohelm ASIC IC5. Diode D2 placed across the data line and 0V provides limited protection against lightning strikes. Incoming signals are converted by the ASIC from SeaTalk duplex line format to SeaTalk DATA IN format for the microprocessor. -
Page 16: Figure 3 Block Diagram
ST80 Active Wind Transducer MAIN PCB +12V 12V HELD REGULATOR (V1) BLACK SeaTalk SeaTalk DATA IN DATA YELLOW P3.1 SeaTalk REGULATOR SeaTalk DATA OUT CABLE P3.0 RESET (IC9) RESET REGULATOR W'DOG P1.4 W'DOG (ALTERNATIVE FIT) R-C TIMING COMPONENTS POWER FAIL 12V HELD P3.5 ASIC... -
Page 17: Pcb Details
ST80 Active Wind Transducer 8. PCB Details 8.1 PCB Layout Anemometer PCB Main PCB Surface Mount Conventional Components, Components, componet side componet side Component Side Underside Taken from Drawing No: 4288-009 Issue: E Date: 07.02.96 Surface Mount Conventional Vane PCB Components, Components, underside... -
Page 18: Figure 5 Circuit Diagram
ST80 Active Wind Transducer D2715-1 Figure 5 Circuit Diagram 18 ST80 Active Wind Service Procedures 83067-1... -
Page 19: Pcb Component Lists
ST80 Active Wind Transducer 8.2 PCB Component Lists Anemometer PCB, Components D3955-1 Taken from Drawing No: 4288-009 Issue: E Date:07.02.96 Vane PCB, Components D3956-1 Taken from Drawing No: 4288-011 Issue: C Date:07.02.96 Main PCB, Surface Mount Components, component side D3957-1 Taken from Drawing No: 4288-007 Issue: L Date:10.09.96 Main PCB, Conventional Components, component side D3958-1... -
Page 20: Main Pcb, Conventional Components, Underside
ST80 Active Wind Transducer Main PCB, Conventional Components, underside D3960-1 Taken from Drawing No: 4288-007 Issue: L Date:10.09.96 20 ST80 Active Wind Service Procedures 83067-1...
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