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My dcl9a monitor goes black - Computers & Internet

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  • cedargirl Jun 22, 2008

    when i turn on comp the screen flashes on for a sec then nothing dosent matter if i hit a key or move the mouse

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How long has your computer been on when this happens? Does the power indicator light on the monitor change color when this happens? Also, if you jiggle the mouse or press a key on the keyboard, does the monitor display come back on?

Posted on Jun 22, 2008

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It come on then it gos off, put on the power.it come back on,then gos off again.


the problem of your lcd monitor is on cathode driver,its a highvoltage circuit that supplying the cathode tube that elluminate the lcd, there are two sets of driver lower and upper tube maybe one of those are shorted or defective...

Aug 17, 2011 | Sceptre DCL9a

1 Answer

No input signal


PROBLEM IS NOT WITH UR LCD.......MAY BE WITH PC......

Mar 19, 2010 | Sceptre DCL9a

1 Answer

Monitor goes blank but is still connected


Do bios update on Computer.Select the product number and search on Website for bios and than try the monitor

Oct 13, 2009 | Computers & Internet

1 Answer

I also am having this problem. DCL9A flickers on then goes dark.


Hello,

It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of the monitor. If you are good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way. If you don't want to try the repair yourself we offer a repair service for $35 plus shipping.

I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

Jul 16, 2009 | Sceptre DCL9a

2 Answers

Turn on the monitor the screen says "out of range" in a small window and turns off


Lower down resoluction and color quality to minimum on your pc, using 'display properties' in Windows. Connect the monitor back to pc with minimal settings. If it works is done.
If it still does not work there is a major problem with the monitor. In this case It should be opened and tested inside following schematics. In this case you may need to take the monitor to a service in your area.

regards

Mar 02, 2008 | Sceptre DCL9a

1 Answer

Volume quit very fustrating.


Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.
Good Luck!

Feb 18, 2008 | Sceptre DCL9a

5 Answers

DCL9A has a white screen


Inside the case you will find 2 PCB's. One is a controller and the other is your powersupply. On the power supply look for some Radial Lead Electrolytic Capacitors. Replace any that are swollen on the end or deformed in any way. Electrolytic capacitors can go bad over time the swelling is an indication of this. I have the same model screen as you. I replaced 3 capacitors that were swollen and this fixed the problem. You will see 2 values on the capacitors ####uF ##v. The first is the microfarad value this should be the same value. The second is the voltage rating it can handle. As a general rule these capacitors should be rated at twice the voltage they handle.
Sometimes increasing this value can reduce the chance of repeated failure.

Dec 26, 2007 | Sceptre DCL9a

1 Answer

Problems with my DCL9A


As posted here http://www.fixya.com/support/t315752-dcl9a_white_screen.

Capacitors have many functions but I would most certainly check your powersupply inside the monitor. Capacitors are also used to remove the 60 hz Sine Wave Ripple (hum) that commonly causes interferance in electronics. Though the AC has most likely been converted to DC a side effect is pulsed DC. The capacitor charges up and slowly discharges to smooth out the pulse. A bad capacitor wont charge and discharge or work less efficient than before. Either way the whole point is . . .
Wether your experiencing a white screen or simply interference, check all components related to the power supply first.

Nov 04, 2007 | Sceptre DCL9a

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