Question about LG Flatron L1715S 17" LCD Monitor

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No power on indicator on screen power lead ok

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Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague

http://www.badcaps.net

SERVICE MANUALS: http://elektrotanya.com/?q=showresult&megnev=LG&megnev2=1715S&kategoria=&kat2=all

Posted on May 16, 2010

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Posted on Jan 02, 2017

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No power at all, np lights come on and well nothing!


No power and power LED does not light up, this indicates either the mains power is off or you have a faulty power lead. Test the mains socket and the mains power lead.
If these are OK then the fault most likely a faulty switch mode power supply. Remove the switch mode power supply and get it tested at your friendly computer repair shop OR borrow a power supply and insert it into your PC to see if it now boots up.
If it boots up the replace the power supply with a new switch mode power supply with the same total wattage or higher wattage.

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How can you tell if a Dell power supply for a PowerEdge 2900 is good? Should the lights at least indicate when power is connected even with the PS is removed from the machine? How do you best determine if...


You cannot test the power supply on the bench just by connecting it to the mains power. You need to know which pins on the connector to activate the power supply and you need to connect a load to the power leads.
The best way to test the power supply is to leave the power unit connected to the computer power up the computer and test a spare 4 wire power connector with a multi-meter. Leave the other power leads connected to the various drivers.
If computer's power LED should light up then test the voltages.
The Red and black wire should read 5 volts.
The Yellow and black wire should read 12 volts.
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If the mains lead is OK then most likely the switch mode power supply has died.

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4 flashing red lights around ring. Game has sound but no picture on the screen


hi, 4 flashing red lights indicates a fault with the video lead, now if you unplug the lead from the back of the xbox and switch it on you should get the same 4 red lights so try that just to check.

now unplug the lead from the telly and your xbox and then refit it make sure you push it in the back of the xbox far enough, if after doing that you still have the problem then this means your going to need to replace the video lead.

let me know how you get on or if you need further assistance ok

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1 Answer

03 kia won't start


Hi do you have any power at all ie when you turn the ignition on do you get all the dashboard lights light up as normal and can you use the headlights etc if you can are the lights bright or not.

If you have no power at all then the chances are the battery needs replacing or it could even be that the alternater needs replacing and then your battery has run flat.

The best thing to do is either charge your battery up and then try your car again if it starts up as normal but their is a picture of the battery lit up on the dashboard then this indicates that the alternater needs replacing.

If after charging the battery you still have no power at all then this would indicate that the leads coming from the battery are loose or not connected at all.

The main problem with the leads from the battery is with the earth leads one should go to the body work you will need to undo this and check that this is not corroded where it touches the body work you can use sand paper to remove any corrosion
The other earth lead connects to the engine check this is still connected and free from corrosion.

Check also the possitive lead from the battery that goes to the starter motor check this is still connected also as this is the main lead from the battery.

You could try using jump leads from someone elses car onto your battery this way if you still had no power it would then 100% be the leads at fault.

If after connecting the jump leads you thne have power and can then start the car this would then indicate that either the battery is at fault or the alternater the way to test this would be when the car is running at night time park up agains a wall about 10 feet away with the head lights on full beam facing the wall no when you rev the engine up the lights should shine slightly brighter then when you stop revving it should go slightly dim if it does this then the alternater is ok and the battery needs replacing.

If the lights dont go any brighter then this suggests that the alternater needs replacing.

Let me know how you get on or if you need further assistance ok

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1 Answer

No screen


You most likely have a defective CCFL backlight, it may have the following symptom:
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  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

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My indicators and hazard warning lights have both suddenly stopped working have checked all fuses all seem ok


I think there is an issue with turn signal switch, test the leads at the switch that are supposed to have power, if they are ok replace the switch. An inexpensive test light will do nicely for these checks.

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