[wheettebott]

yeah that defiantly looks like power regulation.

the black little thing (above the fuse) is indeed a diode to make current flow one way only.
the big black thing is indeed a capacitor for smooth flow of current.
the little orange thing indeed a ceramic disc capacitor.not sure why another is needed though, in circuits the more complex the design they can be all over the place lol!

overall it is a circuit to regulate power so that power spikes are smoothed, one power and fuse for overload protection.

The little orange one is the type usually used for decoupling but I'm not sure what it's decoupling and I suspect there's something on the underside of the board as well that's not being shown.

With respect to the car monitors, what monitors are they and besides this one power regulation connection, do they have any other wiring terminals or control connectors or etc?

[Acrogeokickic]

It's most likely a noise reduction circuit.

[wheettebott]

So DC to DC converter of some sort in short.

[Acrogeokickic]

Not really,I think it's a circuit that cleans the voltage from spikes and noise which can cause whistling and damage... probably. A voltage regulator would have an IC on it.

[goldeneggs]

It's most likely a noise reduction circuit.

Given that the large component in the top left-hand corner is an inductor, this is the most likely explanation.

[Misiotoagodia]

it is a voltage stablizing circuit to prevent the symptoms tahzty was on about



this image is of a very basic one but you can see the simularities

[Ccddfergt]

Given that the large component in the top left-hand corner is an inductor, this is the most likely explanation.

That's what I was gonna say. There's no need for a transformer in a car electrical system.

[bawayTeen]

With respect to the car monitors, what monitors are they and besides this one power regulation connection, do they have any other wiring terminals or control connectors or etc?

they're Innovatek 9" monitors. that stuff in the picture, the "filter box" as its labeled on the box that covers it, goes in between the car's ground and 12V+ connection and the ones that go to the monitors. on the underside is nothing but the green pcb with four soldered connections for the 4 cables, 2 coming in, and 2 coming out. that's it.

thanks for the help:-)

[bawayTeen]

i want to know what this filter is there for. it's between the ground and power cable of my headrest monitors and the car. i understand what the use of the fuse is, but what about the other three things in there? don't quite get what they're for. i have many electronics hooked up to my car and some of them have fuses, some dont, none of them have this in the middle. reason why i'm trying to figure this out is because i want to find a way to make my monitors turn on automatically like most other monitors. mine get a power signal but they stay on standby until i press the power button on them. could this be what's stopping it?

http://www.putfile.com/pic.php?img=5350075

i have a spare of these cables. meaning i could splice that filter out and try it, don't mind if i mess up the spare, just wondering, could doing that mess up the tv itself? throw any light on this that you can. thank you!

[masterboyz]

I'm certainly no expert but it looks to me like a transformer (top left), a resistor (middle left) a fuse (you got that one) and a capacitor (right).

If that's the case it's the transformer is there to down convert (or up convert) the car's voltage (12V) to what the monitor uses. The capacitor is there to regulate the current, stopping a quick temporary loss of power from turning off the monitors. The little orange thing I'm not sure about... some kind of thyristor or something.

The standby mode is probably more to do with the monitors themselves, and how they're designed than this little bit of circuitry here. And I wouldn't recommend bypassing it, as it could be converting the voltage.

EDIT: Actually, middle left looks more like a Diode, and the orange thing is probably another ceramic capacitor.

Basically there's nothing there that would stop your monitors from going straight into power on mode, and it wouldn't make any sense for there to be either.

[dodsCooggipsehome]

Well i'm not sure what it's for but thats a diode above the fuse, an electrolytic capactitor (the black componant) and ceramique capacitor commonly used for decoupling. The other one is either as suggested a transformer or an inductor.

[Emalodoulouts]

yeah that defiantly looks like power regulation.

the black little thing (above the fuse) is indeed a diode to make current flow one way only.
the big black thing is indeed a capacitor for smooth flow of current.
the little orange thing indeed a ceramic disc capacitor.not sure why another is needed though, in circuits the more complex the design they can be all over the place lol!

overall it is a circuit to regulate power so that power spikes are smoothed, one power and fuse for overload protection.