Question about Hyundai Electronics ImageQuest N71S 17" LCD Monitor

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Hyundai n71s monitor

I was given this monitor for free because it was "broke"... the monitor will turn on and looks fine but it won't stay on. it will switch off (sound and screen) and won't come back on unless i unplug it and plug it back in.

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  • robertp58 Oct 14, 2008

    Monitor will turn on, flash various colors of the page being displayed and then turn off. I can get it to turn back on by using the swith, but it is very short lived.

  • Anonymous Apr 14, 2009

    I need driver for this monitor N71S monitor



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This monitor is sensing information from your computer regarding the configuration. The computer is trying to do the same thing. First, boot the computer in safe mode. This will set the output of the computer to VGA specs. The monitor should work with this spec. If not, then check your connections and try to reset the monitor to factory specs.

This monitor has only a limited number of resolutions and refresh frequencies that it supports. Be sure that your computer is configured to one of these standards.

Beyond that, try on another system, if possible. If it works there, it could be your video card is not compatible with the monitor/monitor not compatible with video card. I had someone give me one of these and it works perfectly. I tried other resolutions and the problem with it shutting down shows up.

Solution: run 1024 x 768 at first, then try to switch to 1280 x 1024.

Posted on Nov 15, 2008


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1 Answer

Black screen

If it does the same when attached to another PC, then please read below.
If you are going to DIY and already try the monitor with another PC, and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for:
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures:

Learn about bad caps:

Capacitors kit: he can make you a set of caps for you.
Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

May 14, 2011 | Hyundai Electronics ImageQuest N71S 17"...

1 Answer

As soon as I turn on the Hyundai X93W monitor, it stays on for a couple of seconds, then the screen goes black, but the green light next to the power button is still on. I'm not sure when this problem...

josealvajr, Check YOUTUBE again!! Use search terms: "lcd monitor repair" and "lcd monitor disassembly" and you will find some video clips that may not be for your unit, but will help you. All ccfl back-lit lcd monitors use same basic electronic design to display text and images on the lcd panel!!! Hyundai probably won't sell you a inverter/smps board. Look for swollen capacitors on the power supply board. Lots of pic's on web for you to look at. 12fixlouie

Oct 19, 2010 | Hyundai Electronics Hyundai LCD 19"...

1 Answer

Hello my n71s has been lit white screen and no menu buttons work I can turn off. I tested on other computers and with various resolutions even in safe mode help

When you have white glow and no pictures, then more likely the the LCD T-CON board (part of LCD panel assembly) is not getting 5vdc feeding it, it can be blown fuse on the T-CON board or the logic board is not feeding the 5vdc to the T-CON board.
You need to check the power supply and the logic board first for bad caps (leaking/bulging top).
Please see my pictures here:

May 15, 2010 | Hyundai Electronics ImageQuest N71S 17"...

1 Answer

My n71s monitor has recently come up with "Adjusting" display whenever I try to adjust the sound level instead of the sound bar.And I cannot get the Menu to display.

peter_chadwi, You forgot to mention date of manufacture from the rear cover of monitor??? If unit is out of warranty period you or qualified technician will need to investigate the units switch-mode-power-supply for proper dc voltage output. +5 v or 3.3 v and +12v Whenever strange or weird things start to occur with a cold-cathode-fluorescent-lamp back-lit lcd monitor, I would suspect the culprit to be the SMPS/inverter circuit. Hyundai lcd units have 3 year warranty. Verify that monitor does same at different "known-good" pc!! If unit still has inaccessible "menu" then start warranty service processing. Don't let Hyundai off the hook!
12fixlouie north of Windy City

Apr 08, 2010 | Hyundai Electronics ImageQuest N71S 17"...

1 Answer

Hyundai n71s with white screen always

Send me good clear picture of the Power supply/Inverter baord and the logic board (the board with ribbon cable attached to the LCD panel and the logic board), my email is

Mar 30, 2010 | Hyundai Electronics ImageQuest N71S 17"...

1 Answer

Hyundai n71s with the screen always white, the menu buttons do no

First of all, the screen glows white means that the inverter circuits are working and the power supply for the inverter is OK (12~18VDC is used for the inverter circuits), 5vdc for logic is more likely to be OK since you can turn it on or off. There isno way any peson can tell for sure hat it is not blown fuse or bad transistor unless he can actually make some voltage testing first. Do you have test equipment and basic knowledge of electronics? Picture will help. You can also see what usually goes bad in the monitors,

Mar 30, 2010 | Hyundai Electronics ImageQuest N71S 17"...

1 Answer

Hyundai n71s with the screen always white

not transistor, but it's capacitor problem. It's happen almost to all kind of LCD monitor and TV, just click here to solve your problem.


Mar 30, 2010 | Hyundai Electronics ImageQuest N71S 17"...

1 Answer

Hello my n71s has been lit white screen and no menu buttons work, I can turn off. I tested on other computers and with various resolutions even in safe mode, help

The screen has white glow and no images means that the LCD controller board (part of the LCD panel) is not getting the 5vdc power feeding it from the logic board through the ribbon cable, it is either the cable came lose or dirty contacts, or failed 5V switching transistor for the LCD controller is bad, or blown fuse on the LCD controller board. See pictures here:

Look at the LCD panel album.

Mar 30, 2010 | Hyundai Electronics ImageQuest N71S 17"...

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