the unit come total dead.When I have opened the TV set I have found two defect elcos(CS13 1000mF/25V & CS20 470mF ) after replacement LCD TV works perfect about 5-6 hours.It was night and I switched of the unit and go home.Tomorrow when I come in service I want to check the unit again and switched on it - but it's don't work more. Power board was dead (nothing was burned ,everything on firs look looks OK-but it stop working)
I think that maybe some resistor in primary side change his value,but I am not sure maybe I have no right.
On the main elko there is 300V and on the secondary side is nothing.I cannot see the mark of IC1 which is primary side.Around this IC are 3 transistor and 3 diode -they are OK.
Therefore I need the diagram of this board to try to find where can be the defect to try to fix it.
Chris if you have more experience with this board can you send me some sugestions
Many thanks in advance for support and help.