where's the "V-hold" button on this thing?

[POS carb]

I have a Clarion TV that I can get really cheap the only thing is that the display does this shit like on old TVs when you messed with the V-hold button, the image scrolls up and down very fast with lines through it, the image still appears but it's always moving. Obviously this button isn't on this modern in car TV, I was w3ondering if any of u electronics gurus have ever seen this and how I can go about fixing it.

[shepherd79]

when you buy screen for the car it should come with somekind of the box. that is where all the connections and setups are.
you may have to open up the box and look.
there should be adjustible resistor that you can turn to adjust it.
if you don't see anything, take it to a shop.

[86hatchbackLXi]

im selling my 7 inch lcd that works perfectly. you could buy it and not have any problems.
https://www.3geez.com/showthread.php?s=&threadid=19573

[Sabz5150]

Jiggle the knob!

Seriously though, it sounds like one of the sync circuits is fried. Good luck fixing it unless you like to work with surface mount components and have a steady soldering hand.

[POS carb]

MY BAD LET ME ELABORATE oops stupid caps
It's a Radio with a popout 6.5 LCD and it plays CD's, DVDs. Not a standalone monitor