Question about Hitachi P50H401 50 in. Plasma HDTV
Tv won't turn on. blue light flashes 4 times. I know this is an error code, but what does it mean? Is there any way to make it work without calling a repair service? Out tv is just out of warranty (go figure).
Sounds like it started "Protection Mode" because of a failed electronic part inside the TV. I don't have the actual Service Manual for your TV to tell you what the code means.
Most likely the TV has 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 it's 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 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 blinking 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.
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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