LCD 4 pin external 12v supply pinout

[benq1]

I received an LCD monitor with out the external power supply called One Monitor
model PV198SG. The input rating is 12V DC at 4.2 A. It has a 4 pin connector .
Does anyone have the pinout.
(see attached picture)
benq1

[alexanna]

Re: LCD 4 pin external 12v supply pinout

When I receive a monitor without the four pin external power supply, I will remove the back of the monitor to identify the power and ground pins. And then wire in a compatible voltage and amperage power supply for testing.

[Scenic]

Re: LCD 4 pin external 12v supply pinout

if you have a multimeter, it's even easier.
put it in diode test mode (beep mode). one probe into the hole where the VGA/DVI cables would screw into (or any other exposed metal part), and with the other, go through the 4 pins.
should be 2x ground (beeping) and 2x positive (no beeps or just a short one)

edit: from a quick google search this seems to be a combo LCD monitor and TV

[benq1]

Re: LCD 4 pin external 12v supply pinout

Thanks

It looks like the 2 pins closest to the DC IN are the ground pins and the 2 pins farthest away are the 12V pins.