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Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 26320
Location: Livermore CA USA
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 Posted: Sat Feb 16, 2019 4:36 pm Post subject: MAC 3 LED Trim Indicator... |
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Hello,
A fellow homebuilder friend of mine has a old-style three-LED (Red|Green|Red) MAC Trim Position Indicator. The Green LED was burned out, and the wires were cut off too short.
I told him I would try to replace the LED and lead wires. I got it apart without completely destroying it. But the internal wiring and polarity of the LEDs isn't that clear to me, nor is the actuation of it through a servo electronically. I'm not sure how to activate three LEDs with only three wires? (Or did there used to be four wires?)
Does anyone have a PDF schematic of the 3-LED MAC Trim Indicator that you could email to me?
Or better yet, does anyone have a spare or unused one of these they would like to sell me?
Thank you,
Matt Dralle
Matt G Dralle | Matronics | 581 Jeannie Way | Livermore | CA | 94550
925-606-1001 V | 925-606-6281 F | dralle(at)matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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jbaer(at)LititzPP.com
Guest
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| Posted: Sat Feb 16, 2019 5:37 pm Post subject: MAC 3 LED Trim Indicator... |
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Hi Matt,
The obvious (but probably incorrect) answer is that the chassis is the 4th wire. Is the housing metal?
J
John Baer
Lititz Precision Products LLC
Lititz PA USA
www.LititzPP.com
Cell (EST USA) (717) 413-7931
Skype: John.Baer7712
From: <owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)> on behalf of Matt Dralle <dralle(at)matronics.com (dralle(at)matronics.com)>
Reply-To: <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>
Date: Saturday, February 16, 2019 at 7:32 PM
To: <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>
Subject: MAC 3 LED Trim Indicator...
Hello,
A fellow homebuilder friend of mine has a old-style three-LED (Red|Green|Red) MAC Trim Position Indicator. The Green LED was burned out, and the wires were cut off too short.
I told him I would try to replace the LED and lead wires. I got it apart without completely destroying it. But the internal wiring and polarity of the LEDs isn't that clear to me, nor is the actuation of it through a servo electronically. I'm not sure how to activate three LEDs with only three wires? (Or did there used to be four wires?)
Does anyone have a PDF schematic of the 3-LED MAC Trim Indicator that you could email to me?
Or better yet, does anyone have a spare or unused one of these they would like to sell me?
Thank you,
Matt Dralle
Matt G Dralle | Matronics | 581 Jeannie Way | Livermore | CA | 94550
925-606-1001 V | 925-606-6281 F | dralle(at)matronics.com (dralle(at)matronics.com) Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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