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Sceptre LCD - no display

My Sceptre LCD X9G-Komodo IV is no longer worked as usual, the screen stopped displaying. If I press the button OFF and ON again, the monitor will display information for about 1 second and after that the screen is blanked/blacked out even the power is still ON (green). Could you please help me to resolve this problem? Thanks SAME AS all the other monitors in this section, screen goes black, power light stays on, comes on for a second or two and then black again; tried another computer; this time fired up once and then black for good. Only a little over a year old. Brand Visiontek by Batesias.

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  • justice_emel May 16, 2009

    My Sceptre LCD X9G-Komodo IV is no longer worked as usual, the screen
    stopped displaying. If I press the button OFF and ON again, the monitor
    will display information for about 1 second and after that the screen
    is blanked/blacked out even the power is still ON (green). Could you
    please help me to resolve this problem? Thanks
    SAME AS all the other
    monitors in this section, screen goes black, power light stays on,
    comes on for a second or two and then black again; tried another
    computer; this time fired up once and then black for good. Only a
    little over a year old

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2 Answers

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It may be the capacitors, since capacitors run about $1.50 or so depending on size you may spend a little over $6 total if you already have soldering equipment or a friend with skills.

Posted on Mar 01, 2009

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It sure sounds like the capacitors on the powerboard. Here's a possible solution. There are four capacitors in a row on the power board ( the one with a single huge capacitor and several other ones in a seperate section) There are two seperate boards in the monitor, when you open it up it will become evident. The capacitors to replace are in a single line, two smaller then the other two. They are rated 470 uf/25V and 1200uf/10V Total cost of the 4 capacitors is a couple of bucks. You need to replace all four as it will be difficult to determine which one is acting up. Reason why your monitor is failing to display is because one of the capacitors is not holding it's charge and when it demands power for displaying the graphics it can not deliver. So, replace all four capacitors 2 x 470 uf and 2 x 1200 uf and your display will be fine. Of note, when you power up after replacement, it will take just a heartbeat for the capacitors to charge up so you may see a little flicker and a bit dimmer screen at first. That should all go to normal within a couple of seconds. Good luck

Posted on Aug 07, 2009

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Same problem here


My Sceptre Komodo 19 would turn on for less than a second than turn off. Eventually, I could get it to stay up. But after a month, I couldn't get it to stay on anymore.
I found the solution on this website. There are some bad capacitors... 4 of them for about $2 worth. I replaced all four and the monitor works fine again. They are soldered in. They are polarized; they need to be installed the right way. The white stripe goes towards the “wall”.
2 are 470uf 25v and 2 are 1200uf 10v.
I ordered mine for about $10 with shipping from Mouser.com
661-EKZE250ETD471MJ1 and 647-UHE1A122MPD
0cd9231.jpg
a7d4c35.jpg

Oct 04, 2009 | Sceptre X9G Komodo IV 19" Flat Panel LCD...

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I have same problem... just went off warranty and they won't cover it.. they want $100 for repair plus $35 shipping plus I have to pay to ship it to them... For $179 I can buy a new 19" with 3 year warranty...I wouldn't buy another Sceptre at half the price

Jul 13, 2008 | Sceptre X9G Komodo IV 19" Flat Panel LCD...

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My Sceptre Komodo 19 would turn on for less than a second than turn off. Eventually, I could get it to stay up. But after a month, I couldn't get it to stay on anymore.
I found the solution on this website. There are some bad capacitors... 4 of them for about $2 worth. I replaced all four and the monitor works fine again. They are soldered in. They are polarized; they need to be installed the right way. The white stripe goes towards the “wall”.
2 are 470uf 25v and 2 are 1200uf 10v.
I ordered mine for about $10 with shipping from Mouser.com
661-EKZE250ETD471MJ1 and 647-UHE1A122MPD

44cf31e.jpg5bcc2c5.jpg

Jul 06, 2008 | Sceptre X9G Komodo IV 19" Flat Panel LCD...

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check out any dry solder or burnt and re solder it , hope it helps AJ

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To me it sounds like the bulb is having a problem with powering up. It may be an issue with the power adaptor or the outlet it is plugged into. Have you tried to plug it in, in other outlets?

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I have a 19" Sceptre Comodo display. After 3 years it got the problem everybody complains about. Took it apart yesterday.

There are 4 capacitors in a row on the power supply board (it has a socket for the power cord and is covered by a metal shield. The caps are barrel-like things standing upright on the side opposite to the power cord socket.) Two of them are 470 uFx 25 V, they are next to each other. In my case, one of them popped up and another one was bloated. I pulled out the power supply board (make sure you unplug the power cord and press the power button do discharge the high voltage caps before messing with your monitor) after disconnecting all sockets (mark'em!). I assume that you have new caps handy (I paid $2.10 for a pair at a local electronics store), they must have the same capacity and voltage rating. Now grab a soldering iron, remove old caps, and put new ones in. You must observe polarity! (Usually "minus" pin is labeled on the cap's side. Mark down "minus" and "plus" pins location of old caps and put the new caps in exactly the same way! Otherwise, you can blow the caps.) If you are not used to work with a soldering iron, hire somebody or buy a new monitor. Check the quality of the work (no shorts, solid contacts, etc), assemble the monitor back and may be it will work (did for me). If it does, you put one monitor less into the city dumpster, be proud to get a working monitor for less than $5, and force you mother-in-law to take this shiny new replacement display she just bought back to the store.

Of course I do not guarantee that my procedure will work for and you can use it at your own risk only (i.e. I am not liable for any damages).



Nov 15, 2007 | Sceptre X9G Komodo IV 19" Flat Panel LCD...

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Hi dgp1952, Check with www.lcdrepair.net if you want a repair. Something is wrong with your backlight or the circuit supplying power to it. If your technically endowed, you may want to open the monitor case and clean the dust and lint from around the circuits using a Small paint brush to sweep away any built up dust. Dust can cause the circuitry to heat up faster and put the power supply into Clamp mode. Clamp mode will turn the supply off to certain circuits which may be the reason your display is going black after 5 minutes.

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2 Answers

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I recently came accross one of these monitors (Planar PE191M) with the identical issue. The resolution was to replace the two 470ufd 25V capacitors that are located on the main power board. The main power board also contains the audio circuit and more importantly the inverter circuit that drives the CCFL backlighting. The suspect caps were identified using an ESR meter; if you happen to have one of these meters you can confirm this is the issue with your unit(s), alternatively you can just replace the two capacitors and see if it resolves your issue. Hope this info helps someone out there.

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