When i try to turn on my akai pdp4294, there is no sound or picture all i get is my standby light that is usually red flashes red, orange. green, and then it just flashes green can any body helpme superbowl is coming soon!!!
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Try replacing the Y-sustain board. Might have to replace buffers attached to it too. Have you had it diagnosed? My picture went out and I replaced the power supply board. Worked for 2 weeks then acted up again. Got a different power supply board. Same thing 2 weeks later. Was told it now was a bad Y-sustain board. Replaced y-sustain board. Worked OK for about 2 hours then started having picture issues. Not the same issues before power supply or y-sustain problem. Was told that you might have to replace buffers attached to y-sustain when you replace y-sustain. Tired of dealing with it and only watch a couple hours a day, so I don't always have the problem unless I watch the TV for a long time. Will eventually replace buffers to see if that works. I would definitely find a place that gives free estimates or close to free to get a technician diagnosis. Then you can decide if you are able to do the work yourself.
The only solution at this point would be to get the power supply repair since new boards are not longer being manufactured. In about 95% of the time if the LCD doesn't power up or turns OFF by itself or need to be unplug for some time to make work again; those are the symptoms of a dying or defective power supply. I service these power supplies, for more info write to firstname.lastname@example.org
the red blinking light usually has a pattern that gives you a code to the possible problem. Maybe you have a bad power supply board. You have to open the panel and do a few tests on the power supply's outputs to be sure. It produces a variety of voltages for different parts of the tv ie. the plasma display panel and the audio system. The components supplying power to the audio system may have failed a year ago and recently the pdp.
plasma tv's are expensive to repair, most of the time you can get a better tv for the same price. You can reduce that cost by learning and troubleshooting it yourself.
Repaired one of these with the same symptoms about two weeks ago. My guess is that the SMPS has failed. In laymen's terms the power supply, Samsung p/n#Bn96-00249a and you should be able to purchase it at Vance Baldwin http://www.vancebaldwin.com/ and just sign in as a guest, select parts# and input the number above (no dashes). Be seated when you do they're a bit spendy - - about $270.00 dollars plus shipping and a $50.00 core... You get that back when you send them the old one..
After you get the back off the PS is located in the middle of the unit at the top of the screen. If you need the service manual to help just let me know. It's actually an easy plug and play repair...