Re: Samsung PS43D450 Plasma - Very strange VS and VA?

Thanks dick_barton and tvtimmy for your observation. Will do a cross check once again. Althogh i tried re-seating the cables many times. No harm in re-checking i guess.

regards

Re: Samsung PS43D450 Plasma - Very strange VS and VA?

Hello, thanks for the reply sir.
Sorry for me replying late as was not well so this TV repair project was stalled.

Anyways, I have attached pictures for better understanding.
I mostly suspect the Y-buffer or the Panel itself to be bad. I have ordered a new y-buffer board to test the same before i trash the tv.

The voltages across the resistors/diodes on the y buffer should be typically 58V but its way low to 41V and fluctuates on the lower side till about 28V or so.

There...

Re: New Members - please post your introductions here

Hello !
I am Nachiket from India.
This is my first time on this domain and find it to be a GREAT platform! Keep up the good work all my friends ! I will try my best to contribute :-)
All the best to everyone. Cheers !!

Re: Samsung PS43D450 Plasma - Very strange VS and VA?

hi, am new to this forum. Dont know if this is the right place to post my query. Correct me if i am wrong ;-)

I too have a Samsung plasma tv PS43D450A2 model with horizontal black lines in the middle part of the screen. The tv is fully operational.

The voltages on all test points of the power supply, y-main board test points read fine according to plasma screen stickerwith Va, Vs and Ve readings. The X main voltage at test point XS-E is 78V

But when i test the voltages across the...