Question about Hitachi P50A402 50 in. Plasma TV

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New plasma not working

I have no picture or sound. Menu wont even pop up. Blue indicator light on front flashing 3 times

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This is most likely a couple of problems inside the unit , will you be trying to fix it yourself?
if so give me a fixya rating and I'll be glad to assist in determining the source of the problems

electech

Posted on Nov 07, 2008

  • jason Nov 07, 2008

    this is going to be one of the boards and you will need to do some tests for me so I can analyze the results

    you will need to check for open protection fuses on the power section and check the voltage on the transformer

    when you get the results post them so I can analyze them , thanks



    electech

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WHY WON'T MY HITACHI PLASMA TV SHOW PICTURE OR SOUND? WHAT DOES THE BLUE LIGHT ON THE FRONT FLASHING 4 BLINKS MEAN?


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.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
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Service Menu selection you can not see

service-menu.jpg


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f14804d.jpg

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135a668.jpg


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Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

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2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

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