24v 6A 4 pin power supply Suitable for use with all 24v LCD tv

24v 6A 4 pin power supply
Suitable for use with all 24v LCD tv & monitors which have a 4 pin connector &
use less than 6A, e.g. 3.67A, 4.67A etc.

Will this power supply work my tv?
1. Does my tv/monitor use a 24V power supply?
2. Does my tv/monitor use a 4 pin connector?
3. Does my tv/monitor use 6A or less?

Answer ‘yes’ to the 3 questions above & this power supply is suitable for your tv
or monitor.

read more and source :

http://www.power-plus.tv/pdfs/24v_6a_4%20pin_psu.pdf

ATX Power Supply Schematic

ATX Power Supply Schematic

source : 
http://www.smpspowersupply.com/ATX_power_supply_schematic.pdf

RV WALL PLATE_ POWER SUPPLY

This unit is equipped with a polyswitch,(current limiting device), which will shut down +12VDC if there is a direct short between antenna and power supply. Green indicator light will not light. Once short is eliminated,
device will reset itself in approximately 2 minutes.

DESCRIPTION
Wall plate/power supply to operate Winegard RV antenna with outdoor receptacle for TV set and cable or satellite input. Wall plate/power supply provides +12VDC to antenna and +12 volt receptacle as well as antenna signals to two TV sets. Cable input from outdoor receptacle connects to wall plate and may be switched so either antenna or cable or satellite signals may be watched. See applications.

NOTE: THIS UNIT IS NOT AN AMPLIFIER. USE
ONLY WITH A WINEGARD AMPLIFIED RV
ANTENNA.

source : http://www.fiberglassrv.com/files/Winegard-PowerSupply.pdf