mitsubishi puhy 250TEM-A

[gilbrando]

i have a problem with mitsubishi puhy 250TEM-A, when i replace the inverter board with a new one and turn on the power there's no display on main board, need help pls.

[gilbrando]

puhy 250TEM-A how to check serial transmission on INV and MAIN board?

[Harry Trafford]

Did the main board get wet by any chance???

[gilbrando]

there no sign to get it wet, even i replace the main board with the same model the led didnt comes out.