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Old 11-23-2010, 08:57 AM   #21
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Kuhl I am guessing that your TV has only 6 wires because most do not have the wire for reverse lights.
Here is a link to a website that shows todays standard pattern.
Trailer Wiring Diagrams | etrailer.com
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Old 11-24-2010, 09:36 PM   #22
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1973 31' Excella 500
Phoenix , Arizona
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Posts: 24
the black wire from the curbside that you say should be at 11 is back up lights, also for some reason I now have no running lights (even if I put power to the green wire) is there a fuse box some where? This is turning out to be a real mess!!! I have turn and brake lights, I don't know if my brakes on the trailer are working, I don't have any running lights and I don't know if I am getting a charge from the TV... The brown wire 1 position = left, the red 5 position = right.... am I missing something some where? Nothing seems to be as it should
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Old 11-24-2010, 10:50 PM   #23
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Kuhl Yes 11:00 black wire from curbside is reverse lights. Brown wire at 3:00 RIGHT TURN from curbside red wire at 5:00 LEFT TURN from curbside. How are you putting power to green wire? If you are using a seperate battery or battery charger you munst also attach grong wire from battery or charger to trailer ground to complete circuit. As far as I know the 73's did not have fuses for running/turn/reverse or brake lights. The only circuit that had a circuit breaker was the charge line. I'm not sure what you mean by position 1 or position 5. I am describing the trailer end of the 7 pin as airstream wired in in 73 and using hours on the clock to describe the locations. If you are looking at the 7 pin from inside 12:00 is a t the top and 6:00 is at the bottom.
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Old 11-25-2010, 10:37 AM   #24
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1973 31' Excella 500
Phoenix , Arizona
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Sorry, position 1, etc = clock positions...
My problem is that the 11:00 position on from the TV is hot, I can't seem to find, back up lights, and I have not running lights! I am driving myself crazy and I am sure that I am not doing much better for you! Thanks for all your help! Happy Thanksgiving!

I am going to break this down so that I have a clear understanding of how everything should hook up:
1:00 = White (?)
3:00 = Brown
5:00 = Red
7:00 = Green (?)
9:00 = Black/Orange
11:00 = Black
Center = White (8ga)
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Old 11-25-2010, 11:13 AM   #25
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Kuhl Lets see if we can get this sorted out for you. First do you want to keep the a/s pattern so you have a unique umbilical or do you want to have trailer match todays standard.
If you look at the wiring patterns on the link I provided you will see that the clock positions are mirror reversed depending on whether you are looking at the back(wiring side) of the coupler or looking at the front (pin side). For example 11:00 black hot (12VDC+ charge line) on the front(pin side) becomes 1:00 on the back(wiring side)
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Old 11-26-2010, 09:08 AM   #26
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1973 31' Excella 500
Phoenix , Arizona
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My Excella did not have the original cord only the recepticle AS side, so I have had to get a whole new set up.... At some point if I am able I will put it back to original, but at this point in time I don't have the luxury of time to wait....
SO, since everthing is revervesed, when I am looking at the back side of the plug that is AS side that the embilicale cord plugs into, I need to reverse everything?
1:00 = White (?) - 11:00
3:00 = Brown - 9:00
5:00 = Red 7:00
7:00 = Green (?) - 7:00
9:00 = Black/Orange - 3:00
11:00 = Black - 1:00
Center = White (8ga)
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Old 11-26-2010, 12:12 PM   #27
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Kuhl
1)Does your TV have a 6 or 7 pin connector?
2)Does the TV have a blade or round connector?
3)Does your TV have a brake controller?
4)Have you purchased an umbilical yet?
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Old 11-26-2010, 02:31 PM   #28
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O.K. since you don't want to help me help you by letting me know exactly what equipment you have. Let's assume that your TV has a brake controller and a 7 pin blade connection. You have purchased a 7 pin umbilical with the blade end and the other end has bare wires. You have also purchased another umbilical end which has the round pin to match the connection on your trailer.
The umbilical round end is wired to the bare wires as follows:
1:00 Black wire from umbilical for charge line
3:00 Green wire from umbilical for right turn and stop lights
5:00 Blue wire from umbilical for electric brakes
7:00 White wire from umbilical for 12VDC- ground
9:00 Yellow wire from umbilical for left turn and stop lights
11:00Brown wire from umbilical for running lights
Center pin purple wire from umbilical for reverse lights

Then wire the trailer connector as follows:
1:00 Green wire from curbside for running lights
3:00 Red wire from curbside for left turn and stop lights
5:00 White wire to 12VDC- ground to frame or shell with mounting bolt for connector
7:00 Orange & Black wires tied together from roadside for electric brakes and breakaway switch
9:00 Brown wire from roadside for right turn and stop lights
11:00 White wire from circuit breaker(the other side of breaker has bluewire(curbside) and red wire (roadside) for the charge line 12VDC+
Center pin Black wire from curbside for reverse lights
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Old 11-28-2010, 02:09 PM   #29
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1973 31' Excella 500
Phoenix , Arizona
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I posted a reply to your reply above, but it didn't show up for some reason! we have had some complicaitons, my TV was totaled last night... we are going to rent a Uhaul to move the AS... SO, I hope all this works!
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Old 11-28-2010, 02:43 PM   #30
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Kuhl OH MY GOD! I hope everyone is alright. Make sure you use your umbilical cord so it will have the right ends on it. Blade end for TV and round pin end for trailer. I would cehck with U-haul first because I think they won`t let you tow any trailer with their vehicles unless it is their trailer. How long of a move are you doing. Maybe just hire a tow company if it`s not too far.
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Old 11-28-2010, 02:46 PM   #31
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1973 31' Excella 500
Phoenix , Arizona
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Going from Phoenix to San Diego
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Old 11-28-2010, 03:19 PM   #32
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Yeah that`s too far for a tow company. try U-ship.com. Lots of private individuals doing professional long distance towing. Let me know how you make out. When do you need to move it.
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Old 11-28-2010, 08:03 PM   #33
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1973 31' Excella 500
Phoenix , Arizona
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I'm confused....
sitting in the trailer on the goucho looking at the back of the 7 pin connector, this what I see
I have an 8 ha coming off breaker in the center
1:00 brown working turn signal/brake (curb side)
3:00 red working signal/brake ( curb side)
5:00 no wire
7:00 no wire
9:00 black/Orange (8 ga) tied together (roadside)
11:00 white 12ga (roadside)
I have a green ( I know is running lights) and black wire that I need to figure out what position they need to be at they are coming from the curb side
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Old 11-28-2010, 09:03 PM   #34
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1973 31' Excella 500
Phoenix , Arizona
Join Date: Nov 2010
Posts: 24
Ok, I just got back to my Mac desktop... my last post was from my phone... After I posted, I took a test light to the back of the 7 pin (AS side). The only place I have power is the center pin (White 8ga). The turn signals and brake lights were working yesterday before the accident... I really hope I can get this figured out before I leave tomorrow... We are going to have to take the Mountaineer to U-Haul tomorrow to get a new tow package installed since out original TV (2005 Titan) was totaled last night by a motorcycle! Thanks for all your help! I am looking forward to spending some nice San Diego nights in our new (to us 17 Excella) AS if we can manage to get it to San Diego
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