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RV-6A - GBC
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Date: 5-11-2014
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Number of Hours: 1.50
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Manual Reference:
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Brief Description: Dynon - Intercom
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Effective working time ... finally.
'Borrowed the idea' from Bob Knuckles 'minibus' design. Used a D9 female solder connector and soldered a wire across all 9 pins, producing a bus. Pic#2 is without a shell, and the D9 male is not used but it will be added as the harness is completed.
All of the ground leads coming in are 22awg, and documentation indicates that it's adequate for all the Dynon audio components. There will be TWO 20awg lead wires from this audio ground bus to an actual A/C ground bus on the firewall connected to the negative BATT.
The bench test setup consists of a 12v 7ah battery connected to a terminal block, with a 5A mini fuse (probably should be smaller for 22awg). The circuit includes an ON/OFF toggle, and also feeds power to the strobe flasher and two LED flashing lights. Harness for phones/MIC not visible.
Includes Co-pilot/Pilot phones/MIC harnesses, two headsets (with boom mikes), and Dynon SV-Intercom-2S. Successfully tested VOX, squelch, volume control and potential interference from the strobe flasher. Worked 100%. This setup tested the Intercom and headset wiring, ground bus, and power connection. Next task is completion of the Radio - to - intercom wiring harness.
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Bench Test setup
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D9 common audio ground
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