I need help with my Laptop diagram (re-upload the pic)

**ado0o** · 01-05-2009, 07:42 PM

Heeeeeeeeeeey Guys

am kinda New with the Car-Pc thing

So ... am starting my own Project

and am gonna use an old Laptop

with a 10.4' touch screen

also am gonna add an auto reverse cam ( still dont know if its Usb or AV )

and i have no idea how am i gonna do it hhhhhh

I Just Draw the Car pc Diagram ...

tell me if it missing something

(re-upload the pic)

and any idea will be thankfull

**WuNgUn** · 01-06-2009, 03:51 PM

Is your cam USB?
What frontend will you be using?

**ado0o** · 01-06-2009, 06:15 PM

am gonna put an auto reverse cam

and the frontend ...

mmmmm maybe RR

**FusionFanatic** · 01-06-2009, 08:24 PM

Originally Posted by ado0o

tell me if it missing something

there are no fuses in your diagram

**ado0o** · 01-07-2009, 06:41 PM

the regulator is having a bulit in fuse

should i put an external fuse

if so .... tell me where to put them ??

Thnx Dude !!

**WuNgUn** · 01-07-2009, 06:44 PM

You should put a fuse at the main battery junction, and probably another one at your regulator and another for the touch screen....

**FusionFanatic** · 01-07-2009, 09:03 PM

Originally Posted by ado0o

the regulator is having a bulit in fuse

that fuse only protects the regulator itself

Originally Posted by ado0o

should i put an external fuse?

yes, an in-line fuse is required within a few inches of the power source. this is to protect the power wire from staring a fire due to a short circuit or drawing too much current. the fuse cannot exceed the ampacity for whatever wire gauge you use. this site has some good info on wire guage, ampacity, and fuse ratings.

Originally Posted by ado0o

if so .... tell me where to put them ??

you must put a fuse at the beginning of any power wire, and anytime you reduce wire gauge or split into two or more smaller wires (unless the smaller gauge wire can handle the current that the main power fuse is rated for).

remember, its always ok to downsize a fuse, but NEVER go higher than the wire can handle.

**WarDriver** · 01-09-2009, 11:16 AM

Does the screen you are using have a feature that automatically switches the video input to the composite input when voltage is applied? If so you are missing the auto part of your automatic reverse camera diagram. Generally you can pull 12v+ off of the reverse lights to accomplish this....but only if you want it to switch over every time you put it in reverse. You could also throw in a toggle between the reverse lights and the screen to disable that feature.