I NEED TO FIND A BOARD THAT IS LOCATED INSIDE OF THE MONITOR MTNIDYLM1986 PART NO R8215FMJ7A001

Check electrolyte capacitors inside power board.

bad either inverter board for screen back light or busted back light.you will need to remove back cover to access the inverter board and back light inside.the back light is covered with plastic and metal shield located at the top and lower portion of the screen panel display.

The HP is a flat screen monitor used with many desktop computers. When the LCD on your HP monitor goes white, it is an indication that your monitor's inverter board has gone bad. The inverter board is a small circuit board that transfers power from the monitor's main circuit board to the LCD screen. Replacing the inverter board means dismantling the HP monitor.

1. Power down your computer and unplug the HP monitor cable from the back of your desktop. Disconnect the power cable from the back of the monitor. Relocate the monitor to a flat work surface. Place the monitor with the screen facing downward.

2. Remove the Phillips-head screws from the monitor's base stand and from the back cover. Lift the base stand off of the monitor and remove the back cover. Peel away the foil from inside the monitor around the internal circuit board.

3. Locate the inverter board near the bottom of the monitor's casing. Unplug the power cables from either side of the inverter. Loosen the Phillips-head screws from the inverter board. Lift the old inverter out of the monitor's casing and set it aside.

4. Place the new inverter inside the monitor. Replace the Phillips-head screws and fasten it in place. Reconnect the power cables to the connectors on each side of the new inverter. Replace the foil around the outside of the main circuit board.

5. Replace the back panel and base stand, and their retaining Phillips-head screws

I hope you find it very helpful.
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Hi, 12fixlouie here. LCD monitor may have intermittant solder joint on power supply board inside unit. May only need you to resolder it to fix. Locating it is a whole other problem in itself!!! If not into monitor "teardown" and all the other stuff that you will need to attempt a repair, then let me know right away. 12fixlouie

jbfrmga1, It's possible that you or a qualified electronics technician will need to open the monitor and inspect the printed circuit boards for the ONE and ONE only "bad and thermally intermittant" solder joint and resolder it. You may need large magnifying glass or low power 8x to 20x inspection microscope to locate the "thermally-fractured" solder joint of an active or passive electronic component that has become intermittant on the "switch-mode-power-supply/ccfl inverter board. To prove problem is inside lcd monitor, move (connect) "cold" monitor to an already fully booted pc with the WIN-desktop screen already displayed on a good monitor. 12fixlouie

Look to see if you do have 12~18vdc feeding the backlight inverter board (located on the left side of the monitor), it can also have blown fuses on the inverter board. Post back what you see inside so we can guide you further, this is really old monitor, 2002.

The good news..
The bad news, The problem is the video logic board inside the monitor. Replacement is the only option and you will have to beg Philips to even get the location of a replacement board if it's not still under warranty. Then sell your first born child to get it.

The explanation.
The video logic board takes all the input signals and sends them to a central processing unit that then sends the signal to the panel itself. If any of the inputs are damaged, then only that section will fail. The monitor input side of your board is dying, most likely due to overheating so collapses after it reaches it's thermal limits.
Chances are the vertical/horizontal input from the video cable is being shorted inside the IC that controls video from the PC. This is a common fault in many Samsung LCD monitors as well.

Hi,

No, that is just the connector. The inverter board is inside the LCD on an elongated printed circuit board. Its input would be pure DC as opposed to AC from the 120 mains. Its function is to produce high frequency/high voltage to supply the Cold Cathode Florescent Lamp(s) which provide the backlight illumination of the LCD panel.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

resolder some components on the boards inside your monitor especially on the CRT neck board.

check also your monitor cable connection to the System unit.
also check if your video card was fully intact on the board.

Once you're ruled out your PC and video card by trying a different monitor, I would suspect the problem is a bad video / signal board inside the monitor. If so, it needs component-level electronic troubleshooting to locate the bad part(s).