Replaced the power supply board on my plasma tv. Now have a snowy picture on all inputs. Green light on the logic board blinks evenly. No puffy caps. Is there another board that needs to be replaced?

Well, since you have already invested and replaced the other boards to no avail you might as well change the PS board. If the PS is not outputting the correct requirements for the other boards it is possible that lights will work/blink but the other boards will simply not work.

Check all the capacitors one might be bad find out if it is bad it should bulge on top of the capacitors

hi yes i would thanks

shaun

HI:
There are bad capacitors on the power supply that needs changing. Also check the B+ capacitors on the inverter board also for leaky caps or caps that are puffy on their tops.

i just replaced the power board got it off ebay.lj44-00025a.now the led 8004 turns red.

I have same problem. Walmart is selling Sanyo junk You are not alone lots of web chatter about these lasting 2 years or less, Mine lased 19 months, Trash it & buy a different brand. I originally was going to buy a Samsung & now I will.

check the filters caps in the power supply board that could be your problem

good luck

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I would think that the signal board would be more suspect than the hyper board for the symptoms you're describing. However I would recommend getting the service manual and doing some troubleshooting rather than just replacing circuit boards.

You have a 8.6v supply error according to the 7 error code being displayed, what you can try is when the set goes to blinking disconnect the Y sustain board (if looking at the tv from the back the board on the left) from the upper left side of the power supply, if the error code stops then you know your Y sustain board is pulling down your power supply and causing the error, if the error code continues you have a probelm with your Logic Board (located under your Small Signal Board) disconnect this from the Y sustain board and see if the error code stops if it does you know that the Logic board is bad, if the error code is still blinking then the 8.6v supply line from the Power supply is faulty and the Power Supply needs to be replaced

The SSB is small self contained board that u connect your Antenna, and HDMI to. An error three is a communication error between the SSB and to Logic board ( located underneath the SSB on the back fo the plasma panel that is just below the power supply. U can check parts.com and see if u want to purchase a SSB for this TV. Is the 3blinking lights coming from the front of the TV. Also check the power supply and see how many times the green led blinks on the upper left of the power supply and let me know.