Question about Sceptre X20g-Naga III 20.1" LCD Monitor

3 Answers

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

My Sceptre X20G-Naga III screen will go blank after I turn it on. It will stay on for 1-2 secs before it goes blank. If i hold the s button down on the monitor the screen will come back on briefly. I have this same problem. I'm wondering how muchit may cost to repair...or whether best to just buy a new monitor?

Posted by on

  • 1 more comment 
  • val6 Dec 15, 2008

    Is there a schematic available for the X20G?
    How do I test the backlight inverter?


  • Louis Ebert May 11, 2010

    cyber_icedud, theonejrs, can you get the capacitors measured at a local repair shop to prove that they are faulty and tell us the brand name of the failed electrolytic filter capacitors?? Have any of you guys been to YOUTUBE to view video clips of "LCD monitor disassembly" and/or "LCD monitor repair"??? What brand of filter caps are being installed on the SMPS/inverter printe d circu it board??? I hope they are all 105 deg,. C rated! Good luck guys. 12fixlouie

  • theonejrs May 11, 2010

    Your solution, while probably right doesn't tell anyone how to fix it! Pictures or drawings, and what parts are needed would be helpful. I've had the back cover off, but haven't a clue as to what I am looking for. I work on complex electronic equipment for a living, without knowing where to find the Inverter board or what you have to do to repair it, the solution is kind of worthless. With some proper information, I could easily repair this monitor.



3 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    Visited the website for 3 consecutive days.


    An expert that has over 10 points.

  • Contributor
  • 19 Answers

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.

Posted on Jan 18, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I'm about to do the exact same thing. I think the issue is with the main power board's capacitors. Unfortunately there's no good description as to which caps are responsible for the backlight and which ones are for the TFT's.

I'm assuming the larger 2x 68uf @ 450V and the 2x220uF @ 25V have to be replaced so I'm waiting for those parts now.
If that doesn't work, I'll swap out the 8x470uf @ 25V next.

Posted on Jan 02, 2010

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has answered 200 questions.


    An expert whose answer got voted for 20 times.

  • Expert
  • 293 Answers


It's seems your backlight inverter is busted. To repaired by yourself, it cost about $10 in parts. Assuming the proper tools. To buy a new inverter from Screptre it cost about $70. Take your picks...Good lucks!

Posted on Oct 03, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a Sceptre X7G-Naga VI 17 inch LCD Monitor When I turn the monitor on and boot the computer I get the red light for a sec then the blue light comes on I will also see windows booting up but the...

try with restarting computer & press F8 at the same time. u will see a menu where choose "safe mode" & start the computer. in safe mode see the display properties, set the refresh rate & resolution according to monitors specifications, apply & restart again. if that does not work, replace the main board of lcd monitor.

Aug 25, 2011 | Sceptre X20G-Naga II 20.1" Flat Panel LCD...

1 Answer

I have a sceptre x20g naga III screen goes blank

if you have the warranty, return it and get a new one free. ok

Feb 19, 2010 | Sceptre X20g-Naga III 20.1" LCD Monitor

1 Answer

Comes on for 30 sec. goes black

If you can make out a faint image then the fault is a backlight problem.
The fault could be an inverter board or the CCFL lamp/s
For service, parts and DIY info check out LCD Parts - click on this link to their WEB site : -

Oct 19, 2009 | Sceptre X20g-Naga III 20.1" LCD Monitor

1 Answer

Sceptre naga blue screen when tv on then turns blank, sound on

i have a secptre t v turns on for a sec and screen is blue then goes to blank screen can anyone help

Apr 18, 2009 | Sceptre X32BV-Naga 32 in. LCD TV

1 Answer

I have a 20 sceptre widescreen lcd monitor

Have you tried any other monitor connected to your computer since your current problem? Check your connections, make sure your VGA cable/DVI cable are in good condition. If none of that works try to RMA it to sceptre if your still within the 1 year period.

Apr 07, 2009 | Sceptre X20g-Naga III 20.1" LCD Monitor

1 Answer

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

most common lcd monitor break down, check all electrolytic capacitors for leakage and loose board solder specially on the ccfl inverter section.

May 31, 2008 | Sceptre X20g-Naga III 20.1" LCD Monitor

2 Answers

Sceptre X20

reinstall your video card drivers ,

Nov 16, 2007 | Sceptre X20g-Naga III 20.1" LCD Monitor

Not finding what you are looking for?
Sceptre X20g-Naga III 20.1" LCD Monitor Logo

1,959 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sceptre Computers & Internet Experts

Cindy Wells

Level 3 Expert

5342 Answers

Ricky Ostrom
Ricky Ostrom

Level 2 Expert

274 Answers

Are you a Sceptre Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides