No display and LED green blinking, the same problem happened with my LG 700E 17" monitor too. By these solution I changed 2 capacitors of 1000uF 10V, & 16V with same ratings. After this relay and display started with the message check cable, BUT WHEN CONNECTED TO CPU IT AGAIN IN THE SAME STATE WITH NO DISPLAY AND LED BLINKING....next what, should I change 220uF 450V capacitor also or something else is there to do. Thanks for this place for good Ideas.

This is an LCD display, not a LED one. The fluorescent backlight has probably failed on the unit. Replacement is possible, but purchasing a new, LED display would be more cost effective.

problem with the monitor Display cable. it is damaged.

Normally monitor will receive 3 colors red, green, Blue signals from CPU. If one cable i.e Red wire connection is missing in display cable which is connected to monitor, Red color image on monitor wil be replaced with other fade color.
So, need the replace the display cable or display connector!

What DC voltgae are you getting on the 10vdc rating caps, it should be 5vdc, and 12_18vdc on the 25vdc rating caps. You should check with the load such as 12v 1157 carbulb but do not hit the power button (make sure the power is off, the power supply is always running without the power switch activated) because we want to see if it will maitain 12v with external load not with the inverter circuits.

Basic LCD monitor troubleshooting guide:

http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find.

check the connection to the cpu.fix the VGA cable connector.

You've got components that have gone bad, probably from age and the normal heat inside a CRT monitor case.

I hate to say it, but it's really not worth fixing. You can usually find a used but working 17" monitor for under 20 bucks.

I think that two capacitors in the powers supply circuitry(incise the monitor) has gone bad. Just open and you'll see them.
This should solve your problem.Best of Luck.Please rank me appropriately. If you want any clarification, Please get back to me

LG 700E monitor's power LED blinking continueously and there is no display solutin ........

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:

• Video cable.
• Video adapter on PC (sometimes integrated on motherboard)
• Motherboard.

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 state because 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.

LG 700E monitor's power LED blinking continueously, no displaySolution.............

change your adc(analog to digital converter) board will help out