Question about Sceptre X20g-Naga III 20.1" LCD Monitor

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My Sceptre monitor x20wg-nagall\r\npower light

My Sceptre monitor x20wg-nagall power light come on but no display.

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  • charlesp8955 Apr 24, 2010

    The problem is with power supply or inverter board for the monitor not the video card on the computer.

  • charlesp8955 Apr 24, 2010

    My Sceptre X20WG-NAGALL monitor power light come on, but no display. Mind you that I tried this monitor on more than one computer, I also swapped monitors. The problem is internal. I opned the monitor and found four bad caps (bulging). I replaced them. Still the same problem. Can you help me?

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This unit is not getting a signal or is defective.
Make sure the VGA cable has all the pins or try another. Make sure they are plugged in good. Try the monitor on another computer. If it still doesnt work then the monitor is bad. Only a technician with the proper equipment can fix them but it is rarely worth it.

Posted on Apr 24, 2010

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First check the cable ...there can be always something wrong with them ...second..to be sure that the monitor is to blame ...hook another one to the computer and see if it works...also ...you may tell this if the actual logging sound is heard when you open it ...but even in this case the computer nay be ok ..and you just messed up the video card ...setting s..or the video-card itself....so ..either trying another monitor(even an old one ..just to see if it is th monitor to blame or the computer ) or try the monitor in another computer ...(if you have a laptop you can hook it as second monitor ,, and press Fn -F4 to activate it ..)
i fthemonitor turns up to be ok ...the issue is in the video card ...
first open and see if the card is proper inserted in the slot...push it down a little ..or get it out and insert it again ) ..if this will not brink it back ...try the on board card ...if the computer has one ...but for this to work you have to remove the pci one ..) ...there may be the case thet you tried some settings that the computer do not support on the card ..and now you will actually need to insert in the on board card ...and remove the video driver ..insert the other card again ...and reinstall the driver ...I did had this kinda problem with a video card ..and I meesed some settings on it ..and it shows up black after reboot..removing the driver it was te only way out than ...and my lack was tat I had a on board card ...if you do not ...and the monitor seam ok ...you will have to try to reinstall it ..I mean the computer ..

Posted on Apr 24, 2010

  • Catalin Turcu
    Catalin Turcu Apr 24, 2010

    if you already checked and the computer is not to blame for sure ...(i only tried to cover all possibilities )than I think you will have to open it ..and get a new inverter ..cause if the light for the power cames on ..it is not the power....(unless it is the button itself ..)

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20inch monitor only has video for fraction of a second. then goes out. does this every minute or so. i used vga instead of dvi, same. i used mobo instead of video card, same. picture comes to second screen...


It may have power supply problem due to bad DC filter caps, bad backlights inverter circuits, and worst case will be the lamp assemblies.
You need to open it up and check the caps in the power supply section first.
Example: http://s807.photobucket.com/albums/yy352/budm/SCEPTRE/Sceptre%20X7G/

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

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

Aug 12, 2011 | Sceptre NAGA II X20WG 20 inch LCD Monitor

1 Answer

Hi My monitor that i have used to let us shut off the monitor manually, it no longer does it reads key lock whenever we try to turn it off and if we try to adjust any settings it will read key lock in the...


I'm not aware of any ability to lock the keys on any monitor I've seen. I've not used a lot of Scepter monitors but it seems like a rather pointless option to have. So unfortunately the monitor seems to be malfunctioning and will have to be repaired or replaced.
The only thing i can suggest trying is unplugging the monitors power cable for a few seconds in hopes it will reset the monitors control buttons.

May 29, 2011 | Sceptre NAGA II X20WG 20 inch LCD Monitor

1 Answer

Display appears for 1 second only then goes black ... model x20wg-naga


Did you open it up and inspect to see if you can see any caps with bulging tops, check the 5v and 12~16vdc voltages?
If you are going to DIY 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 SCEPTRE and other monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
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 troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Oct 31, 2010 | Sceptre X20g-Naga III 20.1" LCD Monitor

1 Answer

My Sceptre x20wg has gone blank. The blue light is on and "clicks" every couple of seconds. There is no display


If you are going to DIY 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, 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 Sceptre and all monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

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1 Answer

Sceptre x20wg 1080p monitor


In case you know very well electronics, you must open the cover of your monitor and find a fuse burned. You change this. You must repair power supply which supports voltage to work light on your screen. You must be expert to repair this.

Oct 29, 2009 | Computers & Internet

1 Answer

I have a sceptre x9g-naga III


Not an expert, but from what Ive read, this is a cfl inverter issue. I had the same problem on my Sceptre. Good luck finding parts. My solution: get another monitor.

Feb 27, 2009 | Sceptre X9G-NagaIV 19" LCD Monitor

3 Answers

X20G-Naga III screen goes blank after 1-2 secs


FIXED!
Device : Spectra X20WG-Naga
Problem : monitor comes on then flickers then goes off
solution: Replace Capacitor C101 (150uf, 35V) and Fets U101 and U102 (4511GM)
Comments: This is a common problem with this monitor.

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4 Answers

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1 Answer

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0939a31.jpg This is the same problem I am having with my Speptre X20WG Naga Monitor.
The power LEDS are usually red in standby and blue in opp; but now they just go purple and nothing happens..no sound no picture. I called tech support and no dice they just wanted my money, but I think all we might have to do is change a fuse on the main pcb! As you can see the white arrow isnt really pointing to anything specific! I think the fuse is the lt blue component, but am not sure. This is all I can offer! If you gat any good tips or if anyone else finds a fix please email me pbj0327@yahoo.com.
Thanks! and good luck m007!

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2 Answers

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Oct 09, 2007 | Sceptre X9G Komodo IV 19" Flat Panel LCD...

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