Question about HP mx705 17" CRT Monitor

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HP mx705 17 in.CRT --Blank monitor

The power light --green light come on on my hp mx705 --  monitor is blank

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Re: HP mx705 17 in.CRT --Blank monitor

I assume the monitor is still plugged into the back of the system?

If so, do you get any beeps which can denote error codes for the system?  Put your ear to the monitor, any strange whinning noise?

Posted on Oct 23, 2007

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Blank screen, no light indicating monitor is on, makes clicking noise when i click to turn on. It is a hp mx705.

It is either the power supply or the deflection circuit.
If you can read electronic circuits and know how to use a DVM. Check the power supply voltages and the deflection circuit for any short..
Best of luck.

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Self test failed means Monitor is bad.

Check input settings, whether DVI mode is selected.

Dell Monitor has 3 year warranty by default, Contact Dell Techncial support

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The hp mx 705 monitor was working,then it just went blank and black. the power button light, just blinks green.

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...

Nov 07, 2009 | HP mx705 17" CRT Monitor

1 Answer


a CRT monitor  just like a CRT television when it fails may still have a light on the front panel operate   you probably had a catastrophic failure  usually small electrolytic capacitors near the horizontal output transistor dry up an cause the transistor to fail  the voltage regulator may also fail in the process

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If the power light does not turn color and stay's green on startup, it is not a power problem. It is most likely the inverter. If the unit is in warranty, send it out ASAP. Contact HP customer care by email and have the issue logged in.
If in warranty, they will send you a box by FedX second day and have repaired.
This is a 19" monitor and will not be worth paying for repairs if not in warranty.

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It appears that the display resolution set in your display properties is out of the range that the LCD can display.

Try this.

Boot to the ENABLE VGA MODE by pressing F8 to get the Windows Boot Menu. If you can get to the desktop, then go to display properties, and see if you can change the resolution to higher settings and maintain video. (If the video blanks out, then it should revert to the previous setting in 15 seconds)

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if you disconnect the data cable while the monitor is on, you should get a red and cyan message telling you to check the cable, that assures you that the problem does not coming from the monitor, instead check th video card.

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There is probably some electronic malfunctions inside your monitor. Since I will not be able to actually check your monitor, the best solution for this is bring your monitor to a qualified TV/CRT technician in your area for proper diagnosis. He's the right expert and the second opinion to that kind of problem. Problems regarding inside the monitor are usually not fix-it-yourself kind of thing for non-expert like you compared to software problem, which can be mostly fix by yourself guided by an expert.

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