Anyone have any experience with Veba TFTs (or similar)...

Docaroo · 29 Dec 2007 at 20:55

Hey Chaps,

I'm trying to hook up a Veba 7" TFT monitor to my ICE (with a car freeview tuner...) everything works except the TFT seems to be in a bad mood:

It is a Veba AV700MB - it takes 12v DC as usual, has 3 A/V RCA connections and 4 other wires, which I assumed were as follows:

black = -ve
red = 12v +ve
brown = ?? remote control?
white = ??

so i had it connected with the freeview tuner (also 12v) to a molex connector i put with the head unit 12v connection from the fuse box...

so everything should have been fine, except the TFT doesn't power up - the freeview does so the TFT should...

Funny thing is when i "wiggle" the TFT power molex connection a bit the power light does come oon.. however it's not a dodgy connection because I've tried 3 different methods to connect it (including connecting direct with the freeview's power wires)....and the power doesn't stay on at all..

Is it possible that Veba have some funny wiring colours? or that i also need to hook up either the white or brown to a 12v dc as a possible remote control turn on? this is annoying as I don't have the manual, and can't find any wiring schematics online either!!

Cheers!

Matt82 · 29 Dec 2007 at 21:05

RTFM?

Begbie · 29 Dec 2007 at 22:24

RFTM?

Docaroo said:
this is annoying as I don't have the manual, and can't find any wiring schematics online either!!

Cheers!

Ben M · 29 Dec 2007 at 22:26

in a plug brown= the live wire :s

Docaroo · 30 Dec 2007 at 18:16

Matt82 said:
RTFM?

thanks a lot mate... i never even thought of that!! WHATS THIS - LOOK IT TELLS ME HERE IN THE INVISIBLE MANUAL THAT I DON'T ****IN HAVE! :mad:

Ben M said:
in a plug brown= the live wire :s

yes maybe but however using just red and black wires i can get the power to flash on but not stay on??? this is annoying!! short of plugging ever wire in to every possible connection what could i do??

i think the brown and white wires are for diff aux ins/outs or other garbage anyway?? was hoping someone knew...

Ladforce · 30 Dec 2007 at 18:23

If the power flashes on maybe its shorting somewhere or your not making good enough contact. Try getting some wire wool onto the contacts and see if that helps.

Docaroo · 30 Dec 2007 at 19:51

Ladforce said:
If the power flashes on maybe its shorting somewhere or your not making good enough contact. Try getting some wire wool onto the contacts and see if that helps.

unfortunately due to my semi-pro electronics skills i don't think it's that... i have stripped the wires around 3 times each and connected them in many different ways (even directly to the freeview wires....)

My next bet is to strip a good 4-6 inches off the wires maybe that section of wire is brokeN??

this has me stumped it just doesn't make any sense!

Ladforce · 30 Dec 2007 at 21:19

Just short the wire over an aa battery for a couple of seconds and see if it gets hot to test if its broken or use a continuity tester if you have one. Maybe the screen needs the remote trigger signal in order to work, this is usually the white one or at least it is on my amps.

mejinks · 31 Dec 2007 at 02:27

The Red and black are correct, the white is the remote wire and the brown connects to your reverse switch.

Docaroo · 31 Dec 2007 at 17:13

mejinks said:
The Red and black are correct, the white is the remote wire and the brown connects to your reverse switch.

great so howwww should that be connected though?? and whats the reverse switch?? :S

i take it if i just bling on 12v to the brown i'll be fine?

2Thumbs · 31 Dec 2007 at 17:21

mejinks said:
The Red and black are correct, the white is the remote wire and the brown connects to your reverse switch.

Dont you mean handbrake switch (or whatever it is)? Stops you from being able to use it while driving.

With some, you can put the brown wire to earth which lets you use it whenever you like, for passengers ofcourse.

mejinks · 31 Dec 2007 at 17:25

2Thumbs said:
Dont you mean handbrake switch (or whatever it is)? Stops you from being able to use it while driving.

With some, you can put the brown wire to earth which lets you use it whenever you like, for passengers ofcourse.

Nope. Its in the manual as reverse light.

The white wire is what you need to put 12+ up.

Docaroo · 31 Dec 2007 at 19:48

mejinks said:
Nope. Its in the manual as reverse light.

The white wire is what you need to put 12+ up.

ace cheers mate that's solved a headache - i'll try it tomorrow...

as for the brown "reverse light">....

Maybe it's for connecting veba reversing sensor cameras too? Then when you put the car in reverse (ie "reverse light receives voltage") then the monitor switches to reverse camera??? or something lol....

Dogbreath · 1 Jan 2008 at 14:31

Docaroo said:
Maybe it's for connecting veba reversing sensor cameras too? Then when you put the car in reverse (ie "reverse light receives voltage") then the monitor switches to reverse camera??? or something lol....

That's exactly what it's for, it makes the TFT switch to a different AV input which would be wired to a camera for reversing etc.

mejinks · 1 Jan 2008 at 21:34

Dogbreath said:
That's exactly what it's for, it makes the TFT switch to a different AV input which would be wired to a camera for reversing etc.

Ja! Dis iss correct!

Docaroo · 2 Jan 2008 at 01:02

magnifique!!!!!!!

ganey · 5 Jul 2014 at 23:00

I know this is a ridiculous long shot,

I have several AV700MB monitors, they have a 9 pin din on the back, and i have no leads.

anyone have a pin out?

so far ive figured that pin1 is 12v+ and the outer ring is the neg.