Fl705 fl905 have a HP LCD Monitor and need to pop it up after being packed

most likely is power supply board

Try turning down the brightness on the monitor, sometimes this will fix the issue, if not the problem is in the inverter board and needs a professional to assess it further.

The problem is caused by either its main controller board or button controller board.

Well, I will try to change button board first, because it's cheap.

If you have never open up the LCD monitor, please don't open it up and try to fix!
Either you will damage the monitor when you open and/or be shocked by high voltage electricity!!

This doesn't look monitor related to me. It seems a problem with an internal piece of software.

Check this out:

http://www.fixya.com/support/t3933403-get_rid_tamper_monitor_pop_up

The (-) button on the monitor is deffective, you may send the monitor for repair by calling HP support OR you can try perssing the button for several times to release it, if it was stuck.

All the best.

Regards,
Shrey

well being as how i just did this five minutes ago I can help:) The back of the monitor has a thin panel like a sideways 8 or a bean shape...this pops off then you have to take out the screws holding on the base once you get that off you can lay the monitor flat <carefully> and pop the outer black frame off <every so often along the seam you will see little gaps stick a thin flathead in if it's to tight for you carefully not to scratch or break it is plastic!> then you will see the metal case and find the screws on the sides and your there! Good luck!

Try putting pressure on the monitor near the buttons. There might be a short or some type of stress pressing the buttons.

OSD stands for On Screen Display. You get to it by pressing the Menu button on the front of your monitor.

Here's a link to making adjustments...and unlocking the OSD:

HP f1703

check the output of your power pack .you are having voltage drop in your output supply

is your computer still running after the screen goes blankl