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 on the power supply transistors with a DVM all test good.
Unplugging various boards seem to have little to no effect except the main panel(tuner/sound etc.) but I am thinking that is what is calling for power on?? Please correct me if I am wrong on that. I am currently going thru a learning curve, been out of the game for awhile.
Any help on this would be greatly appreciated.
Are there any sources for schematic diagrams out there? I have searched with no luck.
Thanks in advance!
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 on the power supply transistors with a DVM all test good.
Unplugging various boards seem to have little to no effect except the main panel(tuner/sound etc.) but I am thinking that is what is calling for power on?? Please correct me if I am wrong on that. I am currently going thru a learning curve, been out of the game for awhile.
Any help on this would be greatly appreciated.
Are there any sources for schematic diagrams out there? I have searched with no luck.
Thanks in advance!
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