Having problems with your LG Flatron L1750S 17" LCD Monitor ?

LG Flatron L1730s

\015 My problem is that the monitor works but not when you want it to.\015\012\015\012The screen when first turned on blinks for less than half a second and then goes dark again.\302\240\015\012\015\012\302\240have to turn the monitor on for at least 1hour before i want to use it as after one hour elapses, it begins to work. however, at somepoint, it has to go off right? i can't leave it on forever! next time of usage the same story gets told.\015\012\015\012every time the screen is turned off and on it blinks once and then turns black.\015\012I know the CPU works as i see it flash when the screen does.\015\012Now it takes 5 hours to come on. so now i have to turn it on 5 hours before i want to use it.\015\012\015\012i just want to know if this is worth keeping and trying to fix? or should a just buy a new monitor? even if anyone has any ideas as to what is wrong with it i shall be very grateful because at the moment i'm lost with this thing\015\012\015\012thanks jeremy\015

Answers :

Hi,

Sorry for the delay in responding, it is just now that I was able to view your concern. Acouple of ideas:
\015\012
    \015\012
  • possibly the CCF (cold cathode\015\012florescent) lamps, the inverter and/or the main board;
  • \015\012
  • the blinking light is significant, it could indicate loss of video signal or internal protection kicking in;
  • \015\012
  • possibly heat related, check for any of the capacitors bulging or leaking.
This of course would require opening the unit, a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

If you are considering a DIY, pls reference a service manual or a schematic diagram, that would be chassis CL-82 for an LG L1750S. Foremost to check would be for the presence/consistency of both the 12 and 5 volts,.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.
Repair Help & Product Troubleshooting for LG Flatron L1750S 17" LCD Monitor

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