Re: SAMSUNG PN58A550S1F Power Supply Cycles

Bad solder joint on C102. Set is working great now. Thanks for the tip.

Hello Guys and Gals, I am looking for some help on a Samsung 58" Plasma.
When the unit is plugged in it seems to go thru a normal startup, the screen flashes quickly, a normal start up sound comes from the speakers then the relays click, it goes into shutdown and cycles back on again and continues to repeat the cycle.
Visual inspection on top and bottom of all boards look good.
No bulging caps or bad solder connections.
Standby and run voltages test good until shutdown.
Checked all power supply caps with my old ESR meter with no luck.
Random checks...

Re: New Members - please post your introductions here

Hello everyone, My name is Donnie and I repaired Consumer Electronics(mainly Tvs) from 1992-2012 full time. Needed a change so I went into the construction field for awhile laying floor tile. Got completely board with that so I got my AMT certification (A&P). My wife and I opened a small electronics store in Virginia where we sell open box, return, overstock Tv's and Electronics and offering service after the sale. I was very savvy back in the CRT days but not so much on this new stuff. I am trying to play catchup. I have...