Hi everyone ,ive had limited success in the past lg plasmas usually with igbt,s lasting a few minutes before blowing on y sus boards ,
however this one had s/c on Z SUS BOARD q114,q115 igbt ,and q104 all s/c
i removed both y sus and z sus
and soldered up the coils that cause problems i also checked the buffer boards i,cs for s/c(often the top i/c)
So rather than repair the board this time
i bought a replacement z sus board
and before fitting i soldered up the coils and checked for dry joints .
My big mistake was i DIDNT check with my meter the igbts and mosfets on the replacement board
i was greeted with same symptom at switch on one click then off . and the same items were s/c.
so here are my questions can you run the psu into a load such as a100w bulb to ensure the psu is not over volting?
can you run the tv without the z sus ,to test the vs 201v?
is it possible that the y sus board can damage components on the z sus?
i suppose the replacement may have been faulty ,(knowing my luck)
im about to order the parts to repair original z sus ,but dont want it to fail at switch on .
any advice from experienced plasma repairers would be very welcome
pics will follow
however this one had s/c on Z SUS BOARD q114,q115 igbt ,and q104 all s/c
i removed both y sus and z sus
and soldered up the coils that cause problems i also checked the buffer boards i,cs for s/c(often the top i/c)
So rather than repair the board this time
i bought a replacement z sus board
and before fitting i soldered up the coils and checked for dry joints .
My big mistake was i DIDNT check with my meter the igbts and mosfets on the replacement board
i was greeted with same symptom at switch on one click then off . and the same items were s/c.
so here are my questions can you run the psu into a load such as a100w bulb to ensure the psu is not over volting?
can you run the tv without the z sus ,to test the vs 201v?
is it possible that the y sus board can damage components on the z sus?
i suppose the replacement may have been faulty ,(knowing my luck)
im about to order the parts to repair original z sus ,but dont want it to fail at switch on .
any advice from experienced plasma repairers would be very welcome
pics will follow
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