HP MX 75 CRT monitor just quit working. No light on the on button.

Normally if the hard drive is bad you will get some type of message on the screen.

If it sounds like it is running but the screen is blank, then try another monitor. Maybe the monitor is bad. Try another monitor. Borrow a monitor from a neighbor, friend, relative or co-worker and put it on the computer. If the borrowed monitor works, then your old monitor is bad. If the borrowed monitor does the same thing, then your video card is bad.

If it does not seem like it booted up all the way then try the steps below.

When you plug in the power cord is there any lights whatsoever on the laptop, where the plug goes in or on the AC Adapter of the power cord?

When you press the power button do you hear fans running, hard drive spinning, lights on the computer, hear any beeps or lights constantly blinking, hear the DvD/CD drive click and the light on the drawer of the DvD/CD turn on for a second or two? If so the laptop is trying to boot or may have booted, but the screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with the laptop and why it is not booting. Most times it's a motherboard issue when you hear beeps or blinking lights continuous. Most times the problem is with the memory or Video Card. Count the Blinking Lights or Beeps and take note of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe your power cord is bad if you don't get anything to happen whatsoever when you press the power button. And if that's true maybe you was operating off the battery the last time you had it on and since the power cord is bad, it was not charging the battery so the battery is drained and the power cord is bad.

Maybe you have a Static Charge Buildup. Remove the Power Cord, Then Press and Hold the power button for 30 seconds. After 30 seconds plug the power cord back in and hit the power button to see if it boots.

Maybe your memory is bad or the memory slot is bad.

Remove the Power Cord, Open the Case and remove one of the memory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and try rebooting. If it fails take the chip out and set it aside, then put the other chip in and try booting it in both slots. If it boots, just to verify that the chip set aside is bad, mark an x on it and put it into the open memory chip slot and try booting.

If you've moved your whole PC recently then you might need to make sure that the VGA cord is connected to the correct output on your computer and is screwed on tight. If that doesn't work then try replugging it.

There are 2 buttons to press
one is on the wireless thing you put into the computer
mine is a green light and doesn't look like something you would
press
but it is.
then I pressed the mouse underneath it says connect
and it worked.

If the computer is attached properly and you get the flashing lights it is due to switch mode power supply being faulty, too expensive to fix I think you will find, never seems to be anything like just a fuse I'm afraid, modern worlds tells you its time for you next monitor..... do try to ensure it aint the pc by hooking laptop or something else to this unit, or hooking another monitor to your pc to be sure but I find power supply failure is normally how monitors leave this world...

You need to sync the mouse with the USB receiver. They'll be a similar button on the receiver. Push both at the same time.

The life expectancy is about 5 years. You can fix it, but it's not worth trying to track down the power board for a crt, it's going to cost you more than a new monitor. There are flat panels for under a hundred dollars now, you will save that on electricty over a two year period. Although some folks just like them better than lcd's that is no longer an issue, with the faster resolutions in the past few years you will be better off going for a new lcd. HP's website is the most likelly place to obtain service for your monitor, but I just got an email from Dell this morning and you can get a new 19 inch for about a hundred dollars from their reurbished shop if you really want to save some money, and a 24 was only around $200.

make sure there are no power cables close to the mouse or receiver, I have seen this cause problems many times.

Also try pressing the connect button on the receiver then keep pressing the connect button on the mouse until the receiver light stops flashing

This document pertains to MX50, MX70, MX75 and MX90 CRT monitors.
NOTE: To reset the monitor to factory settings:

1. Turn off the monitor by pressing the POWER button.
2. Press and hold the plus (+) button and then
3. Whith the Plus (+) button pressed, press the power button to turn on the monitor.
4. Release both buttons.

Next time you reset, check both the monitor settings and your BIOS settings for wake up

see if its plugged in properly or try connecting it in the ps/2 port and install the driver if you havent done that yet