Hi, I have such a device where the LED just blinks once a second and thats it. Screen stays black Using it just monitor on a normal pc fails also ie black screen. I opened it up but see no damage ie powersupply visible defects. I also removed the backup battery but nothing helped. Pieter

If your saying that the battery is blinking. In my opinion it sounds like it could be a dc jack charging issue. Lets first start with doing a hard reset of your device. Hold down the power button for 30 seconds without the charger plugged in. Then reconnect the charger and try powering the device on. Try to identify if there is a pattern in which the battery LED is blinking. Does it just consistantly flash, Or do you notice it blink three times and then pause. We can try to troubleshoot this further if you have any issues after gathering this information.

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well, its a 2003 LDC 13 years old ,
its bad
the monitor itself of the power pack to it is bad.
you can test it on any PC< or laptop made
if its dead on all , then its dead.
what more needs saying,
older LCD monitors had old CCFL, lamps. that love to fail
newer are LED back lights that last for ever. it seems
so up grade?
seems your back light is dead
ever do the flash light trick
shine it at the dead screen see good data
yes, then the CCFL is DEAD< (or its power supply ,deep inside)
fixed may but would never do a 2003, not now.
lots of used good LED for sale,

you have a leaking cap on your power supply /open up and check on just replace those caps that looks swollen

This PC was sold new day1, in 2009 (a bad year)
and as such had (per your manual) has toxic mercury CCFL background tube lamps at the LCD screen that do just exactly as told so very well.
and PC means Personal Computer
and CPU means central processing unit, a chip a USA invention !
when the screen is black we use the flashlight test (uk torch , burn free, lol.)
point it here.
see data the CCFL? yes, are dead and the do fail intermittent or by hot and cold room. or dead or dim or got yellow for white tinged.


the problem is bad hardware and googling finds endless geeks that do not understand hardware at all, or little (i call em bit flippers)
Too bad all makers of PC and monitors did not put screen test mode button on the PC, that glows the back lamps
in our shop we use HV CCFL tester to find that truth easy.

the monitor is bad on the desktop PC
if you test the monitor on 2nd PC it fails
if you the failing PC with known good monitor the PC passes all test.
now you learn 3 simple tests, of vast.
but in order based on AGE

big clue #2 is monitor newer showed its ERROR NO SIGNAL or NO connection error, so that clue means PC did not die the monitor did.
no signal , no connection, no sync, or over-range errors never seen.
fans normal. blowing. in PC is clue 3 (and all LED you told too)

I just fixed my for less then 1 minute. Here was the problem, when turn on the PC with the monitor connected. The screen appear like normal for about 2 seconds then shut off black but the GREEN power LED stay on, if i press the power off and turn it back on the screen act the same thing.
Here how to fix it, turn off the PC, unplug the monitor power cable then plug it back. The power LED will stay amber. Hold down both brights minus - and plus + same time, turn on the PC, keep hold the - and + buttons press the power button turn on the monitor.
You will see the screen back on, just hold for about 10 more seconds till you see the screen seem to stay on fine then realse them. That's it how i fixed my.....GOOD LUCK

t certainly seems like the monitor is not getting a signal. Did this happen after you changed something, or just on normal boot up?
It could be the video card that has failed.
Also, check the pins on the connector; sometimes they can get pushed in.
If you can, try swapping out the video card or use the monitor on another computer.
Good luck,

Change the screen resolution. The video card or video display may not be compatible to the supported video setting of the monitor. Try changing the video resolution to a lower setting such as 1024x768 and bit depth to 32 bit.

Looks like the Video card, or Video chip has bought the farm
Try hooking up to another monitor to confirm where the problem is.

tricky!! oh hi im Dyanne.. a totally unresponsive black screen can be th result of failure of th LCD or LCD inverter.( a specialized piece of electronics that energize th screen) to rule out th failure of th video display adapter or circuitry, try plugging in an external monitor..a standard pc monitor.. attached direct to th lappy. if it works, (as i susopect) th motherboard and video display are both working ok and its th LCD which is at fault. this can sometimes be repaired by a competent specialist. good luck xx