Question about Philips 50PF9731D/37 50 in. Plasma Television
I am getting 6 long red followed by 3 short red flashing
I'm sure you've rectified the problem one way or another at this point, but I had the same issue and was able to fix it. I'm not sure which of these actually worked and I don't dare try to figure out which one, but I went behind the unit with some compressed air and cleaned out all the vents, then I replaced the power cord. Fixed. Philips was absolutely useless when we contacted them about the issue.
Posted on Aug 02, 2009
Sounds like it started "Protection Mode" because of a failed electronic part inside the TV. When this happens, the TV will keep turning itself OFF or will not turn ON at all. This keeps the other part inside from being damaged. The flashing red light should no doubt be an error trouble code. But, I don't have the actual Service Manual for your TV model to tell you what the code means.
Most protection mode problems are a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. The common part to go bad for flat panel screens circuit board that powers the screen. Most manufactures call it a Backlight Inverter Board.
But, I can't say what is 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptom.
You have a few choices:
1. You can again try leaving the TV unplugged for 30 - 45 minutes so the TV can discharge and reset itself.
2. If by chance the TV is still under warranty, go that route.
3. If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you red light flasing codes, circuit diagrams, schematics, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15 by searching on the internet with the part number.
4. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.
I hope I shed some light on the subject for you.
Posted on Jul 21, 2009
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Posted on Jan 02, 2017
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