Samsung PDP Module S42AX-YB01; no picture, sound ok

Sep 08, 2009

- Thanks, but my problem is to decide which board I should replace. Is it sufficient to replace only the lower Y-Buffer or do I have to replace also the Y-Main Board. The decision is hard because these board are very costly (500 ?). Again the sound works fine, there is no picture. I measured all voltages of the power supply. They are ok. On Logic Main board there are 2 green LED, the right once is steady on, left one is blinking. No idea what that means. mfG Werner

Oct 12, 2009

- Hello folks, thanks for your help. I could repair the Plasma by changing the Y-Main board and the lower Y-Buffer. Too bad the spare boards are very expensive. I paid round about 350,--?. Now I will try to repair the Y-Main board which has some problem around the IC U5016 (Power FET-Switch) which gets real hot. There are 2 of these switches on the board U5016 and U5012 and U5012 is of normal temp. The big problem is to redesign because their is so juch printing on the board that is hard to follow the contacting lines. If somebody already had the same problem and got some experience I would be real happy to hear what I could do.