lg lcd with transformer 19 volt stby problem and didnt turn on direct

pin83 100 ohm  ic 504
power detect  ic  axb03029

the  3.5 signal comming  from  audio  ic  stereo   with  i2c  and  stand by       monitor  volt 

un know

size 150 141.5

q121  7aw smd transistor
q128     lm91meax  65115602110

plasm pdp 42x12032

lge pdp board 42*1 z sustain
6870qze011b

bad  transistor  2sk    k2673   k2197
 i replaced by igbt transitor  wit the same   ampers   and  three  shold  volt

panel st3151a05-8

panel st3151a05-8  ta660598bn17143y1m

st 3151a05---08  ver 2.5 
csh11-aow   ph9133-eo
cs908  15332ha04
2f smd transistor  pnp