Question about Hitachi P50H401 50 in. Plasma HDTV

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Hitachi power light blinking

Hi, from looking at the message board you look like the man with the answers.
i have a hitachi hd 1080 p50h401 television and the blue power light blinks three times then pauses and then blinks three times then pauses, etc. i've tried unplugging it and pushing the reset button but the tv won't come on and that power light keeps blinking.
do you have any tips that might help?

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  • 4 more comments 
  • Yakuza744 Jun 29, 2008

    I have the same issue with my 50" HDTV Plasma TV. Model P50h401. I have tried turning off the main power with no effect.

  • glenn33188 Jul 21, 2008

    on hitachi tv model p50h401, the power light just keep blinking on and off over over and we tried unpluggin tv from power for 30 seconds.

  • bananabean98 Aug 17, 2008

    same as above mentioned conditions. blinking blue light blinks 3 times goes out, over and over. have reset with no luck. when tv went out was watching it. heard buzz like something shorting out then tv went black and then smell of burning electronics.............

  • Anonymous Dec 29, 2008

    When I turn on the TV voice comes on for aprox four seconds and than silent with no picture screen. The blue light flashes four times pause and than countinues. Will have a tech look at it and keep you posted

  • vertigort Mar 14, 2009

    Light blinks four times pauses then does it again endlessly. Blue, not red.

  • Spiker092 Mar 24, 2009

    I have a similar problem to the people above (the blinking power light on Hitachi model P50H401, and I see that you advised them to change their SDR Printed Circuit Boards, did you ever hear from them as far as that solution working for them?


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Does anyone know how to fix this very common Hitachi problem without paying a repair man? And if you did pay a repair man did they fix the problem, and how much was it? I absolutely LOVED this TV before this happened. :(

Posted on Aug 07, 2010

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You have problems with the SDR Printed Circuit Boards

You need change them

Posted on Nov 28, 2008

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Same problem. Same attempts. I turned off main power under screen. Turned back on. Same blinking light. Then unplugged and turned on again. Same light. I switched off the main switch again and gave up after I read the above "you have problems with the SDR printed circuit boards." I have spent too much money on this TV as it is, so I went out and bought a new one. When I came home, knowing I had to wait three long days for delivery, I tried the TV one last time and ---whatdoyaknow--- on it came! A day later it is still fine. Tomorrow I am cancelling delivery if luck still holds. All I can figure is that unplugging it from the wall and powering off at the main switch did the job of completely rebooting.

Posted on May 07, 2009

  • trish88 May 18, 2009

    UPDATE--this is a sign to fix your TV or toss it to the curb. After I rebooted and let it "rest" for a day or two, it came back on. Lasted about four hours, then went blank again. Tried this twice more over the week, same results.

    Fujitsu is right--time to get it fixed, or get a new one, like I just did.


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Can't get picture or sound on my tv hitachi hd 1080 nothing but blue light blinking

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
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