Black Screen! I turned on my computer and I am getting just a black screen. The computer shows the blue power light on, but I have only a black screen. Computer is only 4 months old. Help!

so working on super old 2007 PC monitors. and no PC connected."? it is NOT ANY LED BACK LAMP monitor here.
came new with XP PC's.
the monitos all good to sleep mode if no PC vidoeo connected.
in the usa, even by law, (energy star)
how ever lacking a PC, the screen will show "no signal entering sleep mode"
VGA monitor.
LED = blue on, amber sleep, LED out, oFF.
NO 1080P mode allowed, (so common now) <<<< big clue here.
set the PC to 1024 x 768 (to test ) 60Hz.
using a flash light (torch) tool,.
turn on Monitor, see blue LED
point flash light to screen, see data, now, on sceen in the beam
now you now CCFL backlamps are dead. as most are this old.


Display Modes (Resolution)

640 x 350
720 x 400
640 x 480
800 x 600
832 x 624
1024 x 768
1152 x 870
1152 x 900
1280 x 1024
1440 x 900

proof BELOW. A FREE MANUAL TOO.
page 47, see 4, CCFL jacks and HV supplies here 600VDC
free service manual with full schematics and BOM

https://elektrotanya.com/lg_w1934s_flatron.pdf/download.html


in my shop I have VGA signal generator to maKE WORK EASY.

Select the input channel for your Fire TV - Turn on your TV and select the input channel for the HDMI port you used to connect your Fire TV. You should then see a loading screen with the Amazon Fire TV logo 4.

http://download.cnet.com/ccleaner/

hope this helps

Enter to bios after powering and watch if it still go off. If not, go to Healt or sensors section and watch the temperature of CPU and system. The computer might turn off because of overheating.

Replace the entire DAC board (board with power suplly going into it) for easiest solution.

ok..idk if this will work but it might...first turn off the sansa...then turn the hold switch on (it should turn red). hold down the record button on the side of the player..then while still holding that hold the power button down...but keep holding them untill a screen shows up saying something about recovory mode..itll say to plug in the usb..u could do that..idk it that will work..it it doesnt instead of plugging in tthe usb in the computer..wait about 15 seconds after the recovory mode screen shows up and then hold down the power button for about 15-20 sec...then itll go all black (including the blue light) press the power button again like u would to turn it on...and everything should be back to normal..hope this helps...:)

Try shining a flashlight on the screen, or without the flashlight, try to see if you can distinguish anything on the screen at all, if you do, the backlight is dead, or the monitor has an internal most likely unfixable problem.

Hi, according to what I understand his equipment it operates well, only that the screen appears in black, does not show anything on the screen, though the equipment operates well, it is possible that the fault this one in the FL Inverter, that is the inverter of current of the screen, which gives the take-off of the lamp of back light, the same one is in the low part of the screen behind of wave mask of the screen

I have the same problem and have traced it down to a potential power supply issue.  I bought mine at Best Buy in '06 and was told today that they will test the power supply for free.  It may range from $50.00 to $100.00 depending on where you can get it.  This does not include labor for those not qualified to work with electronics.  Hope this helps you.

how can u fix this black screen? the green power light is on, shows vista for a bit then turns black and stays black. any solutions or do i have to send it back?