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Rear view camera operation
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Supporting Member of Barthmobile.com 3/11
Picture of Tom  and Julie
posted
I have replaced the old Sony BW camera with a new all in one AV touch screen stereo. The new unit comes with a back up camera but it wants to be connected to the back up lights to work and to the parking brake to use the DVD. My coach has no parking brake (only air), and I want to use this as a rear view since the back is solid and I tow a trailer. Has anyone figured out a way to allow selection of the camera without having to be in reverse? (I also have no shifter - just a toggle switch to the Allison tranny)


1993 32' Regency Wide Body, 4 speed Allison Trans, Front Entry door, Diamond Plate aluminum roof &
1981 Euro 22' w Chevy 350 engine and TH 400 tranny
 
Posts: 1513 | Location: Houston Texas | Member Since: 12-19-2006Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 4/08
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Just put 12vdc on the backup line to make it hot all the time. Same for the DVD line. All should then work.


'92 Barth Breakaway - 30'
5.9 Cummins (6B) 300+ HP
2000 Allison
Front entrance
 
Posts: 1185 | Location: Minneapolis/Yuma | Member Since: 08-17-2006Reply With QuoteReport This Post
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Supporting Member of Barthmobile.com 1/19
Picture of Bill N.Y.
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Whoa... Hang on there.

Running a 12 volt power (12v +) to the emergency brake may not be a good idea. Most emergency brakes operate off of a ground switch. Supplying 12v + might cause an issue.

Running a 12v + to the reverse is probably a safe bet.

Could you scan the wiring diagram for me and send it to my email? I'll draw something out for you and then post it here for all to comment on. For now, do not run 12v + to any circuit.

bill_ny@barthmobilecom


˙ʎ˙u ןןıq- „ǝןƃuɐ ʇuǝɹǝɟɟıp ɐ ɯoɹɟ pןɹoʍ ǝɥʇ ʇɐ ʞooן ɐ ƃuıʞɐʇ sı ǝɟıן oʇ ʇǝɹɔǝs ǝɥʇ„

Regis Widebody1990 Barth Regis Widebody
8908 0128 40RDS-C1
L-10 Cummins
Allison MT647 Transmission
Spartan Chassis
Regal Conversion1991 Medical Lab Conversion
9102 3709 33S-12
Ford 460 MPFI
C6 Transmission
Oshkosh Chassis



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Posts: 5924 | Location: Newburgh, New York | Member Since: 05-10-2003Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 11/12
Picture of Nick Cagle
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quote:
Whoa... Hang on there.


Might that be a "Wrong Moose Breath"

Nick
 
Posts: 1732 | Location: Harlem, GA | Member Since: 09-17-2007Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 1/21
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I have a camera on the back of my PU,it is wire less X-mission from the camera to the receiver. Instructions called for wiring it to the back-up circuit but I also wanted to keep man eye on my trailer so I wired it to the parking lites. I don't want to run a separate wire to a separate switch up front. Now I turn the lites on to view aft.





#1 29' 1977parted out and still alive in Barths all over the USA




 
Posts: 1028 | Location: Floral City FL | Member Since: 04-25-2008Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 1/21
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..............and of course - goes to grnd.





#1 29' 1977parted out and still alive in Barths all over the USA




 
Posts: 1028 | Location: Floral City FL | Member Since: 04-25-2008Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 4/08
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STOP! REREAD my responce. I did not say run 12vdc to the backup lights or to the parking brakes, but to the wiring on the NEW rear view camera to keep it active.


'92 Barth Breakaway - 30'
5.9 Cummins (6B) 300+ HP
2000 Allison
Front entrance
 
Posts: 1185 | Location: Minneapolis/Yuma | Member Since: 08-17-2006Reply With QuoteReport This Post
"Host" of Barthmobile.com
Supporting Member of Barthmobile.com 1/19
Picture of Bill N.Y.
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Hey Gary, all is good. You may be right. But I want to err on the side of caution.

Tom is asking how to wire up his video monitor. The head unit that he is asking about should have extra wires that need to get hooked up for monitor activation.

Because driving down the road while looking at a TV screen would cause an issue to the driver, the DVD players are made to be active when the parking aka emergency brakes are applied. Of course, if you're a back seat passenger this isn't an issue.

When describing how to hook up to the emergency brake it appears to me that he would probably need to ground out the parking brake feed wire to activate the DVD player part. I took your above statement to mean he should apply 12v + to that wiring circuit in the head unit.

If in fact his head unit is as I described, hooking up 12v + to that circuit could cause an issue with the DVD player part.

While I do agree that the exciter for the transmission is probably a 12v + wire, I would still like to see the wiring diagram for the head unit before I make a recommendation.


˙ʎ˙u ןןıq- „ǝןƃuɐ ʇuǝɹǝɟɟıp ɐ ɯoɹɟ pןɹoʍ ǝɥʇ ʇɐ ʞooן ɐ ƃuıʞɐʇ sı ǝɟıן oʇ ʇǝɹɔǝs ǝɥʇ„

Regis Widebody1990 Barth Regis Widebody
8908 0128 40RDS-C1
L-10 Cummins
Allison MT647 Transmission
Spartan Chassis
Regal Conversion1991 Medical Lab Conversion
9102 3709 33S-12
Ford 460 MPFI
C6 Transmission
Oshkosh Chassis



Quick Link: Members Only Link To Send Me A Private Message
 
Posts: 5924 | Location: Newburgh, New York | Member Since: 05-10-2003Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 3/11
Picture of Tom  and Julie
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I will sketch the wiring diagram - I do not have a full schematic. The unit is a Pioneer AVH P4000-DVD (http://www.pioneerelectronics.com/PUSA/Products/CarAudioVideo/Source/AV-Receivers/AVH-P6000DVD) but the transmission (Allison 3 speed) uses ground to shift - no hot wire on the dash toggle. I was hoping to avoid another switch and set it up so that I could select camera from the on screen menu and use it as a rear view mirror of sorts and still be able to watch the DVD when the ignition is in run or accessory. I am not so interested in a direct full time power connection because the parasitic draw from the unit would run down batteries over a week or two when parked.


1993 32' Regency Wide Body, 4 speed Allison Trans, Front Entry door, Diamond Plate aluminum roof &
1981 Euro 22' w Chevy 350 engine and TH 400 tranny
 
Posts: 1513 | Location: Houston Texas | Member Since: 12-19-2006Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 3/11
Picture of Tom  and Julie
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Mistake - Allison 4 speed.


1993 32' Regency Wide Body, 4 speed Allison Trans, Front Entry door, Diamond Plate aluminum roof &
1981 Euro 22' w Chevy 350 engine and TH 400 tranny
 
Posts: 1513 | Location: Houston Texas | Member Since: 12-19-2006Reply With QuoteReport This Post
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