how to start plasma ps51d6900 power

[hispeck]

hello, need help on how to start the power direct without main board, this tv will start and display smart tv then after a while it will go off and re-start again, during then i check the va vs voltage, they are not stable, so i want to start the power alone to see if is ok

[Andrew F. Ali]

Re: how to start plasma ps51d6900 power

Post a focused close up photo of the PSU, PSU Connector that goes to the Main Bd, and Vs to Y-sus Bd. connector on the PSU so we could read the labels on the connectors. What is the Vs and Va voltages on the sticker?

[hispeck]

Re: how to start plasma ps51d6900 power

just some few mins ago, after i started troubleshooting one after the other, first i removed the connector from logic board to zsus and powered the tv on, the vs and va was still dropping then i remove the one to ysus and powered the tv, all voltage remains on, mean the va and vs, now is clear now that my problem is from the ysus that is making the voltage drop, any idea how i can trace the short component?

[hispeck]

Re: how to start plasma ps51d6900 power

here is the picture,