Question about HP L1520 15" LCD Monitor

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Type of power supply and what where is the +/- 5v or color coding for the 4 pin connector?

At the back of L1520 Lcd Monitor part number D5063, it has 4 pin power supply connector, it is 12v/2.5A, what type of connector is this and what is the color coding for the 4 pin connector?

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Re: Type of power supply and what where is the +/- 5v or...

Dhen: This monitor uses a special Power Adapter as shown... Also the Pin designation is from the NOTCHED PART BEING ON TOP: NOTCH U +V O O +V GND O O GND SithPitt

Posted on Jul 04, 2007

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Power cable description


The power supply is 12v. There are two different versions of that model monitor and the plug connector for the power is different. One version has 4 pins on the power connector on the other has just a center pin and barrel. You need to check the connection on the back of your monitor before you order that adapter to be sure and get the correct one that you need. You can get both type here:

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How can one determine what polarity is needed for an appliance that hasn't indication on it?

Since your monitor requires 4-pin dc connector:
You may want to buy a new one, or if you really want to know which pins are positive and negative, you will need and Ohm meter and open up the monitor, attach on lead of the meter to a fuse on the main board (it will be labeled with Fxx) and another lead of the meter to one of the 4-pin power input at a time, two of them should indicate less than one Ohm, once you find that, the next to do is to trace out the copper trace of the PCB, it should be connected to the POSITIVE lead of the Electrolytic capacitor (usual value will be 220~470uF). Next, connect one of the meter lead to the metal part of the chassis, then measure the reistance of the other two pins of the power connector, it should be leaas than one Ohm. If you get all this reading then the monitor is using Negative ground system for the electronics.
Notes; most monitors that use 4-pin connector with single power supply (it will show spec. something like12V 5A), then two pin will be tied together (12v is fed to two pins, Ground is fed to two pins). Hope this help.

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Where can I buy a power cable for Pixie model L-50T 15ince monitor ?

This monitor requires a split 12volt and 5 volt supply. If you can determine the pin-out of the mini-din connector, you can use the power connector in the PC (drive power) to run the LCD display.

12 v is for the display and the 5v might be just for the sound ans USB hub. Gary.

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Power Pin-out?

I have built an adapter cable which allows to use monitor with the power supply of an external hard drive. The image below contains the pin-out for the power connector of the L50A as well as the wiring scheme for the adapter cable.

For users in Germany, here is the list of complete part list with prices:
  1. Universal Power Supply 12V 2A DC and 5V 2A DC, 13.20€
  2. 6-Pin Mini-DIN Male, 0.71€
  3. 6-Pin Mini-DIN Female, 0,71€
  4. 5m 6-Wire Cable, 2.80€


Have fun, Wolfgang.

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Power connection pinout

Here is a pin connection specification for the ac power supply (dual voltage adaptor)
>socket/plug for a Compaq TFT450 LCD Monitor that she
>supplied (edited for further clarity).
>The pins of the male connector (a PS2 mouse type connector) should be connected like this:
> 1 2
> 3 I 4
> 5 ^ 6
> 5V I 12V
> 5V ^ 12V
>For clarification - the male will be the end of your cable, and not the socket on the monitor.
>The I is the central polarising bar of the connector, and the ^ is the notch.

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PS/2 power supply connection

You seem to have an oddball monitor if what you describe is correct. The power supply to a monitor[Display Screen is that what you mean?] is either direct to main power- in which case the power cord is either built in with a power plug for wall socket, or has a socket on the back for a separate main power cord. Or is powered from a low voltage converter that delivers low volts usually via a coaxial plug like this illustration PS2 connection does dot come into the equation as far as I know unless you have got hold of something unusual. Tell you what take a shot of the back of the monitor and lets have a look see mean while here's is a shot of a typical low voltage power supply available anywhere.

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Panoview 630 Power Connector pinouts:
It has been many years since the question was posted but who knows, maybe this will help someone. Looking at the end of the connector clockwise from 1-oclock position:
5pm: no pin
shield is GND
(you can modify an Apple ADB cable to work)

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