Question about LG Studioworks 700S 17" CRT Monitor

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

I have a LG 700E (Ic - LGM148-03C-007) and after switching on
LG 700E monitor's power LED blinking continueously and there is no display and no relay sound at startup, but inplace another monitor working properly. Sometime it automatically wakeup, but take 20 to 30 minute, sometime more. Please tell me how can i resolve this problem and how can i get service manual for this monitor.

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  • tech_mech22 Feb 05, 2009

    LG 700E monitor's Model #C17CL-7 Clor Black power LED blinking continueously and there is no display and no relay sound at startup, but inplace another monitor working properly. how can i get service manual for this monitor or schematic diagram.

  • sundaram2001 Feb 14, 2009

    I have a LG 700E (Ic - LGM148-03C-007) and after switching on
    LG 700E monitor's power LED blinking continueously and there is no display and no relay sound at startup, but inplace another monitor working properly. Sometime it automatically wakeup, but take 20 to 30 minute, sometime more. Please tell me how can i resolve this problem and how can i get service manual for this monitor

  • Anonymous Feb 22, 2009

    my lg 700 e monitor is having same problem no display for 5-10 min only led light blinking very fast continuously and after 5-10 min of waiting the led light blinking slows down to normal and finally i get display.
    i m having this problem for 2 month now
    pls anybody can solve this problem or plz tell me any lg service center nos for mumbai.my waranty is out of date.
    will they provide service after waranty is over .


  • lokhraj Feb 28, 2009

    LG 700E SXGA 17" CRT Monitor's power LED blinking continuously, after 1 min shows display

  • bapi1012 Mar 06, 2009

    power button led blinks fast and it takes about 30 minutes for the monitor to turn on...

  • pao11ph Apr 15, 2009

    Same problem lg 505g. Delayed startup of monitor with power led blinking fast continuously

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LG 700E monitor's power LED blinking continueously - 5_28_2012_6_39_43_am.jpg
LG 700E monitor's power LED blinking continueously, no displaySolution.............

Posted on May 28, 2012

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I had a similar post about an LG 505G. Just bought a new LCD monitor and decided to open the monitor before putting it on permanent storage. I noticed a bloated capacitor in the control board just adjacent to the low voltage power supply. It was a 1,000 mFd 10V cap. So what the heck I desoldered it and replaced it with a spare 50V capacitor of the same rating I had lying around. I assembled the unit plugged it in and VOILA!!! the monitor was working again. Hope this helps.

Posted on May 09, 2009

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LG 700E monitor's power LED blinking continueously - 11_5_2012_8_10_07_am.jpg

LG 700E monitor's power LED blinking continuously & no-display solution.

Posted on Nov 05, 2012

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  •  Sandeep
    Sandeep Nov 05, 2012



    LG 700E monitor's power LED blinking continuously & no-display solution.

  • kiran chaudhari Dec 16, 2012

    I replace 3 capacitor but same problem continue led blinking and no display problem.

  • kiran chaudhari Dec 16, 2012

    no same problem led continue blinking and no display and some voice comming (tik tik tik) continue please give me replay thank u.

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My LG505G monitor has the same problem too, i still have to open it too.. hopefully i could trace the problem

Posted on Mar 22, 2010

  • magsi99 Mar 22, 2010

    pao11ph, thanks for your solution i opened my monitor last night and i found out that the 1000micro farad 10V capacitor has bloated out so i replaced it with same farad value but 25V thats only i have stock and i test it works. everything is normal...thanks....it really helps

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Power suply is dad
plz hellp me

Posted on Jan 31, 2009

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pgmadhav
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SOURCE: blinking of moniter 700e lg

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

Posted on Jul 27, 2009

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Blinking of moniter 700e lg


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

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


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.

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THANKS

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