pn50b450b1d clicking

[pop70458]

The tv clicks and sometimes makes the chime sound but will not power on the whole way.

Va and Vs don't have any voltage.

When i jumper the board i only get 168v on the main caps when powered on.

I get all of the correct voltages on the connector that goes to the main board.

The power supply is a bn44-00274a

[pop70458]

Re: pn50b450b1d clicking

I ordered a new power supply and the tv powered up but it has some horizontal black lines.

Is there a way that i can narrow it down to a bad panel or y sus or buffer problems?

[Andrew F. Ali]

Re: pn50b450b1d clicking

This sounds like a Y-SUS and Y buffers problem. I would recommend changing the Y-SUS and Buffer Bds. together.