Powering a lcd tv
 

Wanting to install a 22" Vizio in the berth but not sure of best method for power. Dont think i want to use an inverter due to heat &/or power cord backing out. How have others accomplished this? I was thinking if its possible to get schematic & solder power wires straight to the board.

It depends on how the TV is wired. all the ones I have seen have a regular power cord, which means the power supply is inside. that also regulates voltage.

If by chance it has an external power converter box, like a printer or laptop does, you have a chance.

From the pics ive seen, there is no external brick. Just normal power cord. I guess i will keep researching on how its done.

Some of the older units will have a external power supply. If you can find one that would be the way to go.

I mounted an inverter under the rear seat and ran 120V extension cord up to the cabin ...you want the inverter as close to the batteries as possible.... Actually I ran a cord up both sides of the boat so I have 120V on both sides of the cabin. I used 1500 watt inverter which is way overkill ...most LCD's draw less than 100w ... Mine is 15" with a built in DVD player and draws about 50 watts ....m

If I understand this correctly, you'd just be making the plug in on the back more secure. I don't see that plug coming loose though myself. Since you don't want to use an invertor, that TV will only work while plugged into shorepower for AC power.



My Sharp Aquos uses the external power supply cord. I just bought the correct plug for the DC jack and hardwired the TV to my cabin power. Many of the TV's use different input requirements, ie 13, 18 VDC... mine just happen to be a 12VDC unit.

Thanks for the pics offthe front, i guess running an extension cord to an inverter is what i may have to do.


It probably wont backout, i just try & over-engineer everything- which normally gets me in trouble. I didnt want to use an inverter because i wanted it to run straight DC.


Hmm, i will keep looking at different brands & maybe i can find one w/ an external psu. An Aquos is out of my budget, but there may be other chinese versions out there. If not, it doesnt sound like an inverter is a big deal after all.

Thanks.

I just went to BB and CC and started pulling the TV's off the shelfs looking for the ones that had the ext. power supply cord. The ones that did, then looked at the power input label requirement for the 12VDC rating. (Can't go by the manufactures web sites specs. as they always call out 110VAC since the TV's come with the ext. AC power supply)
I think the smaller ones were more likely to be 12V, while the larger ones seemed to be higher. Mine is either a 13 or 15". I forget.

Well my current inverter is as old as the boat, & as far as i know only runs off shorepower. i think i am going to replace it w/ a Xantrex that can run off batts as well as shore. plus it looks cooler. :D

Why would you need something to convert DC power to AC, if it requires AC to operate?
Your boat have a battery charger?