Hello Anas,
These failure could be a combination of the power supply and the main board failing.
I would suggest to replace both boards or if you are able to measure the voltages from the power supply and verify that the power supply is working, then you should only replace the main board.
Let me know if you require further assistance.
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SOURCE: Pioneer PDP 5030 power supply problem
Ok here's how I manage solve the problem... Having the back removed opens the contacts on the interlock switch so I guess if it powers up in this state it senses the high voltages are exposed and for safety shuts down... After this the unit will not power up and the power led flashes red continuously as described before…
After some thought it occurred to me that there may not be a problem at all, just be a simple reset function for this condition… I managed to find an easy solution to this… Just call up the hidden engineer’s service menu – On 3rd generation Pioneer Plasmas it’s as follows > Power down the screen > Hold down the “Input” and “Vol +” buttons on the front > Power the screen up and the Service menu comes up on the screen > You don't need to change anything just simply power off and from then the screen should operate as normal…It did for me so I’m well happy now!!
I hope this information will help someone else one day – Good Luck!!…Rob UK…
You can get your board remanufactured at the following link and they are fully guaranteed. Just click the contact us link on the lower left hand side and tell them what you need include your model number they respond quickly.
http://servicemanuals.vstore.ca/
SOURCE: plasma 50 inches dont turn on
The power supply board is dead.Tries the websites like Shopjimmy.com,Ebay.com to buy the refurbish power supply board for the replacement.
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Hello Anas, I have the same problem! Can I confirm that a new power supply board solved it?
Hello Micah, first try to disconnect the cable between main board and the power supply board and turn the tv on, if the backligh turned on that means the power supply board is working good and you need to change the main board by itself.
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