Question about Hitachi 42EDT41 42 in. HD-Ready Plasma Television

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42EDT41A Blinking LED on Main Control Board

I have an 42EDT41A with great sound but no picture. I took the back cover off and I noticed that the Main Control Board in the bottom of the 42EDT41A had an LED that constantly blinked to indicate a problem. Since I don't have the service manual for the 42EDT41A. I was wondering if you guys could help me diagnose the possible cause. I do know from researching your site that the 42EDT41A has a PCB problem, but no one has yet to state which PCB it could be.

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  • Anonymous May 27, 2008

    ver lines

  • Anonymous Sep 10, 2008

    I have exact same problem. Good sound, no pic.We ordered the signal board, along with the main power supply board(in center of set). The signal board we ordered had the wrong plug on it where the tuner plugs into it, so we couldn't try it. The main power board had no effect on the problem. We're going to try to get the correct signal board and try it.

  • Angharad1 Sep 13, 2008

    Same problem with no picture. Specifically about the LED lights : D13 is lit D17 steady flashing. Any help appreciated. Where are you purchasing parts for the TV. Also anyone know where a service manual is available?

  • Anonymous Jan 06, 2009

    my tv does the same thing, sounds fine but no picture...what happens, however, is that the picture slowly comes up but after hours. Any idea what i should do?

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6 Suggested Answers

SOURCE: Hitachi 42EDT41A

Try replacing signal board

Posted on Feb 25, 2007


  • 1 Answer

SOURCE: Blinking lamp LED after lamp replacement

OK I fixed mine. I took out the new bulb, and on the back side, there is a little tab on the right side of the lamp that should depress the safety switch. I think that once you take out the original bulb, the switch lever is weak and once you replace the lamp, the new one cannot depress the switch far enough. I built up under the tab (with some plastic from a pen pocket clip and some super glue)(after I took off the back of the tv to see what was going on) and it depressed the switch farther. I put it back together, and now it works. Saved a few hundred bucks. Good luck...

Posted on Nov 30, 2007

likha
  • 790 Answers

SOURCE: Hitachi 42hds69 blinks 8 times and powers off and powers on, cycle repeats

Hi try this links. click here

thanks!

Posted on Jul 31, 2008

  • 356 Answers

SOURCE: hitachi 42edt41a no picture help

Bad buffer board, Let me know if I can help. lone99star

Posted on Jan 10, 2009

  • 3 Answers

SOURCE: No Picture or Sound, Blinking blue light

the bulb is blown, replace bulb prie 150.0 to 250.00 it is not a hard repaitr to do yourself.

Posted on Jun 09, 2009

  • 33 Answers

SOURCE: my hitachi P50H401 will not turn on. No sound no

check your sdr boards. you can test them with a multi meter. they are known for going bad. what happens is the two caps by the output go bad on the power supply and they make the sdr boards burn out. you can replace the two caps and save lots of money. then please check out this web page http://www.hometheatershack.com/forums/hitachi/38229-hitachi-p50h401-led-flashes-3-times.html

This web page has info about repairing these. The 4 flashing lights maybe the x sus or the y sus but it's still a good idea to check the sdr boards since its a common failer. I had one tv with a bad sdr board flash 3 time and another set it was flashing 4 times.

Posted on Feb 22, 2011

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