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Equipment Repairs => LCD TV forum => Topic started by: raybla on July 12, 2013,14:45:52

Title: Logik LCX27WN2
Post by: raybla on July 12, 2013,14:45:52

Hi all, I have a Logik lcd tv model lcx27wn2 - fault:  power applied red led switch 0n green led screen flashes on blue can see mode osd  then screen goes blank led remains green - I have tried another inverter board with no luck - any ideas please Ray

Title: Re: Logik LCX27WN2
Post by: jordan on July 13, 2013,02:29:54

Check transformer on inverter board

Title: Re: Logik LCX27WN2
Post by: fix2003 on July 13, 2013,02:51:44

Remove the main board screening can
and look where the inverter plug goes into the main board. You will see a number of surface mounted chokes which feed the 12v supply to the inverter. They are usually discoloured and high resistance. Link them out with wire

Title: Re: Logik LCX27WN2
Post by: raybla on July 16, 2013,17:44:53

Hi thank you for the tips here with this Logik lcd tv - I have checked this and it is not the problem however I dont seem to have 24 volts at the inverter socket thats marked 24 volt if thats a clue maybe - the power packed has checked out ok under a lamp load and is supplying a steady 12volts - any further help please

Title: Re: Logik LCX27WN2
Post by: jordan on July 31, 2013,03:47:52

On the PCB main board check L-21 and L-168

Title: Re: Logik LCX27WN2
Post by: raybla on August 03, 2013,05:17:48

Hello anyone have a circuit diagram of the mainboard please its type - NEE 2M for this Logik lcd tv model lcx27wn2
thanks
Ray