Hi all,
I'm trying to help my father outfit his boat with some power efficient electronics (new toy of his, hobby of mine). I'm trying to build 12V DC step down / boost plugs for the various items he wants on-board, and am struggling with the flat screen TV.
The current configuration is as follows:
Boat power from 12V battery bank (charged using only solar, wind, and occasional engine use)
Inverter to 110V AC - lose a minimum of 10%, most likely closer to 30%+ with his budget inverter
TV Internal converter from 110 AC back to some DC voltage - Lose another 30%+ depending on efficiency
This means, 60% of the power is wasted (heat heat heat), and if I can improve this, I can increase the usefulness of his boat batteries dramatically.
I'm having trouble finding the schematics for the two flat screens he already has, and am even striking out at finding schematics for a budget flat screen to replace one or both of the current flat screens. All of the flat screens seem to do the power conversion internally, rather than having external wall-warts with easy to replace DC output specs. Does anyone know where I can find the electrical schematics for some moderately sized flat screen displays or even full TV's?
I thought about just opening one up and putting a meter to work, but I don't want to do this half @$$. I need to make sure the pwoer I am supplying is precisely the required voltage, and is in sufficient wattage to run the TV reliably.
Thanx y'all