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MY HANNSPREE MONITOR HF237 SUDDENLY WILL NOT STAY CONNECTED TO MY LAPTOP I JUST HAVE A BLACK BLANK SCREEN. I AM USING WINDOWS 7 ULTIMATE

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  • 63 Answers

On laptops there is a key sequence that you can switch between monitor states, it's possible you have it in Laptop screen only. Look for the "Fn" key and then hit the Monitor button (it has a picture of a monitor) usually this is somewhere around F5 or F8.

Posted on May 19, 2011

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Posted on Jan 02, 2017

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When I boot my computer My HF237 monitor will briefly show the page then go dark. How can I diagnos the problem?


This is usually an issue with a failing capacitor. I replace them in mine often. In the monitor, on the power supply will be several capacitors (caps). Look for the tops to be domed these are bad. Try a site called badcaps if you are game to replace these.

A soldering station after shipping can be as low as $32 or so.

Oct 09, 2014 | Hannspree HF237HPB 23 inch LCD Monitor

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How to fix HF237 Hannspree Monitor?


I did a quick Google search, since I experienced the same *2 seconds to black* problem months ago, and found this Hannspree HF237 2 seconds to black Badcaps Forums

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Panasonic tx p50u30b Black/Blank screen


Might be a resolution issue. Make sure the resolution in windows for that monitor is set to 1920x1080.

Mar 13, 2014 | Microsoft Windows 7 Ultimate 64bit 1 PC...

1 Answer

I can't connect an external HF199H monitor, on a 2007 MacBook 3,1 running Windows 7. Help??


ok so for clarification, you are using a MacBook w/ a dual boot to windows 7 Ultimate? and after the update from Vista it now is not detecting your external display.

If I am correct, your graphics card is most likely an NVidia chip set. Do some research and find your specific graphics card, go to the NVidia website and download the most up to date drivers for it and try again. If you have done this already, try emailing them and find out if your graphics card is compatible w/ windows 7 or if the driver was specifically designed for vista. That's where I would start.

Jul 03, 2012 | Hannspree HF199H 19 Flat Screen LCD...

1 Answer

Hannspree HF229H will not stay on


railbird56, Common problem for ALL BRANDS of "cold-cahtode-fluorescent-lamp" back-lit lcd monitors! Here are your options!!! Cheapest to most costly!! 1. Warranty repair. 2 DIY repair???? 3. Local or distant repair. 4. possible old + cash swapout with Hannspree for refurbished same model?? 5. Trade-in for new wide screen. My best guess on your monitor (no history) is that the unit's SMPS is in partial or full shutdown mode during it's black screen moments. How much do you know about "electronic ballasts" "switch-mode-power-supplys" and how to repair them?? 12fixlouie

Feb 22, 2010 | Hannspree HW191D LCD Monitor

1 Answer

We bought a new Hannspree in November, now all at


chummel36, Find your warranty and then yell and scream at them about poor quality and premature failure, but only after you connect to a different known good pc and see if your monitor still acts crazy. Learn to do the flashlight test to determine partial or full shutdown state of monitors "switch-mode-power-supply" when screen goes black or blank n black!!! Spend some time in my fixya profile reading about black screen problems before you do anything else. 12fixlouie

Feb 19, 2010 | Hannspree Computers & Internet

1 Answer

HANNSpree monitor screen going blank. The screen dims after approximately 20 seconds and then 10 seconds later goes black. I still have a blue power LED. I have tried with two different machines running...


Sounds like either the inverter board is failing - or it may be the power to the inverter board. Look up your model# on eBay and you may get some insight as well as a source of parts.

Nov 14, 2009 | Computers & Internet

1 Answer

Error on monitor: Input signal out of range. using VGA cable and laptop is right next to monitor Hannspree 23" HF237 LCD monitor


Hello mcarsten,

Your monitor may not be configured to the correct resolution for the second monitor. If you right click on an empty space on the desktop and then select properties, the display properties will appear. Click on the last tab on the top right. It should be settings or something like that. You should see two boxes with the numbers 1 and 2 in them. Next click on box number 2 and try using the slider below and changing it to different resolutions for your monitor.

Hopefully one of these should work for you.

Jul 10, 2009 | Hannspree Computers & Internet

2 Answers

Hannspree Monitor speakers wont work


I don't know if I caused the problem or not. I hooked up my new Hannspree HF237 monitor to my HP pc, and the sound wasn't loud enough so I hooked up my external speakers, and got nothing. So I disabled one without the other, and still got nothing. Now I can't even get the monitor's sound to come back on. Any ideas?

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