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Old 03-13-2011, 10:02 AM   #1
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Need 12V Schematic for '77 Trade Wind

I have searched the forum for a 12V. Schematic for my 77 Trade Wind but can not find one. If anybody can help with this please let me know.
Thanks.
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Old 03-13-2011, 10:12 AM   #2
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I have searched the forum for a 12V. Schematic for my 77 Trade Wind but can not find one. If anybody can help with this please let me know.
Thanks.
That schematic is in the "service manuals" that are available.

What problem are you having with the electrical, 12 volts or 120 volts, and which circuit?

Andy
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Old 03-13-2011, 10:29 AM   #3
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The mothership has manuals for your 77. https://store.airstream.com/index.php?cPath=51

This link might help. http://www.airforums.com/forums/f447...tml#post874380
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Old 03-13-2011, 12:07 PM   #4
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schematics

Here are the 12v schematics.
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Old 03-13-2011, 12:17 PM   #5
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These schematics from '75 are bit more detailed. If you want to be able to read the wire color codes, the attached file is a bit bigger, but right now I can't figure out to retain the full file size when it uploads. If you'd like the 600K version, send me a PM.

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Old 03-13-2011, 12:29 PM   #6
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Mainstream, if you want a digital copy of both the 1977 owner's and service manuals, I can burn you a CD and mail it to you. Send me a personal message if you want a copy.

Kevin
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Old 03-13-2011, 08:43 PM   #7
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That schematic is in the "service manuals" that are available.

What problem are you having with the electrical, 12 volts or 120 volts, and which circuit?

Andy
A previous owner has installed a new converter but did not connect it to the Amp. Meter and I want to do that plus just want to be sure of all of the wireing of the 12V fuse board.
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Old 03-13-2011, 11:25 PM   #8
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A previous owner has installed a new converter but did not connect it to the Amp. Meter and I want to do that plus just want to be sure of all of the wireing of the 12V fuse board.
The amp meter circuit must be slightly modified in order to work with newer style converters.

Unfortunately, I have that information, but at work.

I will strive to post the instructions tomorrow.

Andy
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Old 03-14-2011, 09:14 AM   #9
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Quote:
Originally Posted by Mainstream View Post
A previous owner has installed a new converter but did not connect it to the Amp. Meter and I want to do that plus just want to be sure of all of the wireing of the 12V fuse board.
If you're needing a shunt, you can make a very good one, cheap, out of a short length of #10 copper wire.

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Old 03-14-2011, 10:42 AM   #10
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The amp meter circuit must be slightly modified in order to work with newer style converters.

Unfortunately, I have that information, but at work.

I will strive to post the instructions tomorrow.

Andy
Sorry, I was mistaken.

The modification I was thinking about is for the power on light, and not the ammeter.

Andy
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Old 03-14-2011, 05:19 PM   #11
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Sorry, I was mistaken.

The modification I was thinking about is for the power on light, and not the ammeter.

Andy

Andy,
I also need the power on light to work so that would be handy.
They installed a IOTA OLS 55/IQ4. They taped off one of the two red + wires comming from the new converter and just left it not connected to anything . Also the 5th fuse from the left on the fuse panel is no longer connected to anything.
If that makes any sense maybe you can tell me how to get the red power on light to work etc.
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Old 03-14-2011, 05:28 PM   #12
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Quote:
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...If that makes any sense maybe you can tell me how to get the red power on light to work etc.
The easiest and probably the best way to get the power on light to work is go to radio shack or the local surplus store and get a 12V DC power unit, the kind that's a lump with the 120V plug stickingo out of it. Plug it into the unused side of the 120V socket under the sink and use its output to light the light.

The new converters don't have an isolated 12V output to show that the converter is powered, so the whole 12V system is always hot from the battery. The dodad above is the easiest way to get isolated 12V.

Zep
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