Hello,
a blinking power light and no video is a common symptom of a failure on the power supply board. This is caused by parts called capacitors that have overheated and failed. If you can do a little soldering then you can repair the monitor yourself and save yourself from having to buy a new monitor. The repair is easy, you will need to replace the filter capacitors on the power supply board. Here is a link to a kit with the proper parts needed to rebuild that board. LG Repair kit link The repair should only take about 10 minutes to complete. I hope this helps,
BuddyMc
SOURCE: LG Flatron L1550S power light blinks green.
shorted components on the circuit. send it to a repair shop if you don't have experience on electronic troubleshooting!!!
SOURCE: monitor light blinking
The monitor is probably on protection.
To start unplug monitor
from power and from computer and test computer with different monitor
to find out if it is monitor or computer fault.
If it is computer fault and no video signal , then test:
If it is monitor fault , then the monitor is on protection.
When on protection you keep having a flashing
led on front of the monitor , and monitor turning off by itself after a while,
that indicates a fault condition.
The flashing light indicates a diagnostic state called protection.
When the Monitor goes on protection there are only two possible causes.
1The
internal circuits are jammed because of electrostatic
charges accumulating on capacitors, or because of a wrong voltage read
by the main chip on your monitor controller board. this started the
protection circuit.
2 The protection circuit detected a wrong
voltage or a broken contact, identified an internal fault and kicked in
, starting the flashing light.
If
you are in situation one, then the monitor will reset just unplugging
power cord for one or two hours,sometimes even minutes.
If you are in situation 2 , then there is an internal fault.
Common
faults
that can occurr are a blown capacitor on power board, faulty inverter
board, faulty input board, or a fault on LCD Digital Controller board.
Check also
the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you
can get same flashing statebecause of the video cable.
Try moving the video cable, and if the cable is not built in, then also try a replacement cable.
If under warranty contact the manufacturer ringing the number on the user manual
If you want to repair at your own expenses, just locate any good qualified repairer.
SOURCE: No picture lg flatron w2234s blinking blue light
Hi My screen developed exactly the same problem. It appears to be a hardwear problem associated with the screen it's self. continuity test is ok on the lead so I took it back to the shop under warranty and hey presto, the replacement works. I don't know what the problem is but there are a number of other folks on another thread with the same problem and their entries are dated May 09 too. Dave
SOURCE: NO DISPLAY AND THE POWER
u better to check the VGA connection to the PC and power on the monitor.power on located at the booton part of the monitor
SOURCE: Lg FLATRON LCD L1730S (L1730SSNTM-AL**E power
Here are the service manuals, please look through them. Please note that if the power supply is not made by LG, it will not show the information in the service manuals. Basic LCD monitor and TV troubleshooting guide: Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you. Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
http://elektrotanya.com/?q=showresult&megnev=LG&megnev2=L1730&kategoria=&kat2=schematics
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Please leave rating if it helps.
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