EHT FAILURE I want EHT NO OF LG STUDIOWORKS 775 N

Suspect the LOT

Here are the service manuals:
http://elektrotanya.com/?q=showresult&megnev=LG%20&megnev2=Studioworks%20563N&kategoria=monitor&kat2=all

that is only and only problem of EHT surely directly replace EHT your problem will be solved

your irf 630 is not original purchase it from proper LG authorised service centre it is costly but never become faulty again duplicate mosfet overheats if your green led is on then measure voltage at E.H.T.connect meter at output transister if E.H.T. is producing then meter should show 1 digit if not then 50v will show take care that signal cable should be disconnected if E.H.T. is not producing then check +vcc at horizontal ic it should be 12v. if 12v is not present then check regulator ic 7812 insmps

pls change the eht

first disconnect the path of EHT then check voltages if present then open H o/p transistor check it if faulty then replace it if not then EHT is faulty replace it also check IRF630 mosfet if faulty replace it

I thing it is the problem of horizantal output transistor.that is placed on hitsink of eht big in size.Or check vga cable.
Hope this be of initial help/idea. Pls post back as requested, how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FIXYA.

Check components related with pots thats adding command ic to pots.If they are ok then change command ic with new one.Before this you can check horizantal hold transistor that is placed on hitsink of eht.small in size and check two small transistor placed near it on pcb.Hope this solution works .If not then i am here

I have lg studioworks 57M monitor. The main Problem was No Display, No Power Light.What was the Problem? Can give the technical solutions? just email as [email protected]