Question about Sceptre X9G Komodo IV 19" Flat Panel LCD Monitor

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Black screen flashes when i wiggle the inverter

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  • Sceptre Master
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Black screen? This trouble maybe power supply or inverter boards is defective.
first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those parts
if you have any question,please let us know email:service@wisiny.com.thanks,we sincerely hope we can help you!
you can also check this boards whether suit you:
Sceptre LM004 Power Supply Backlight Inverter for X9G KOMODO

Posted on Mar 22, 2015

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  • Master
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Could it be a dry solder around the inverter transformer , try to re solder all suspicious points , that should fix the problem, hope it helps , AJ

Posted on Jun 04, 2008

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1 Answer

2001fp the screen is black the power light is green. It will flash when first turned on but wont light up. I have it apart and I don't see any obvious bad caps


The problem can be in the inverter board: http://www.lcdrepair.us/2001FP-INVERTER.html

You can try replacing the inverter and hope that the problem is not in the backlight assemblies. You need the test lamps to verify the function of the inverter board. Do you get steady 20vdc feeding the inverter. You can also try heating up the two black electrolytic caps on the inverter board to see if the inverter will fire up using hair dryer, when bad caps with high ESR are heat up the ESR will go down.

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

Sep 11, 2010 | Dell UltraSharp 2001FP 20.1" LCD Monitor

1 Answer

My monitor is flashing on and off. The screen is


Common problem with this model, poor design on the AC inlet support, see picturee here for poor solder joints and also shorted out transistors and bad caps:
http://s807.photobucket.com/albums/yy352/budm/Dell%20E153FPB/
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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 DELL 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
http://www.badcaps.net

May 15, 2010 | Dell E153FP 15" LCD Monitor

1 Answer

Black screen, power light flashing, won't power


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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 DELL 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

http://www.badcaps.net

Replacement bd: http://www.lcdrepair.us/1704fptt-1905fp-inverter-power.html
Please note that you can also have bad lamp assmblies. You will not know unless you have inverter tester lamp assemblies and the lamp tester.

May 14, 2010 | Dell UltraSharp 1704FPT 17" Flat Panel LCD...

1 Answer

Six years excellent service then the screen went black except during start-up the start-up screen flashed om and off, and remained black through the Windows start. The screen did flash on for a second on...


You may have failed backlight inverter circuits, caps failure in the power supply, or bad lamps. Here is the service manual: http://www.eserviceinfo.com/downloadsm/22184/SONY_SDM-HS73.html
You will need to open it up and take some voltage measurement in the power supply first to make that you do have correct DC voltage feeding the inverter PCBA.

Mar 25, 2010 | Sony SDM-HS73P 17" LCD Monitor

1 Answer

Flashing screen when i first turn on my... but turns black immedi


You could have a faulty inverter board or faulty CCFL lamp which can cause the screen to flash.
Check out LCD Parts for service, parts and DIY info - click on this link to their WEB site. :-
www.lcdparts.net

Sep 30, 2009 | Samsung SyncMaster 2233BW 22" LCD Monitor

1 Answer

Monitor flickers or 1/3 turns black, have tried wiggling cable, and moving/tapping monitor, sometime it works great, other times i fight this every few min. Doesn't matter if i turn computer all the way...


You may have a faulty inverter or loose power inverter connection. OR
You may have a defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
Connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out
www.lcdparts.net

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3 Answers

My viewsonic vg700b turns on but the screen is black


Have you found a solution?
I have the same problem

Apr 01, 2009 | ViewSonic VG700b 17" LCD Monitor

1 Answer

Lg l1920 lcd monitor's screen flashes when turned on


Could be an inverter problem, if it powers on for a brief second and then flashes off then the inverter is at fault. Check for any Capacitors which have a yellowish substance at the top, they looks like round blue or black cans and if they look like they are buldging then they will need replacing.

hope this helps =]

Feb 11, 2009 | LG L1920P 19" LCD Monitor

2 Answers

Black screen


Hey... friend,

It's seems your backlight inverter is burnt out...need to replaced a new inverter. Visit this site @ www.3rd-rocks.com There's a replacement parts for your FP988D LCD. Have a nice day!

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1 Answer

BLACK SCREEN


hi there, you may have a inverter problem to your lcd. ty

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