Question about Hitachi P42H401 42 in. Plasma HDTV

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Hitachi 42H401 Just got the TV as a gift and at times there are lines, almost an interference - sort of a quick flash almost like digital blocks. Thanks

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SOURCE: Hitachi TV

You have a defective light engine and you do not have to be under warranty for Hitachi to replace this part. We just went through this and here's what you need to do. Call Hitachi's customer relations department at 800-654-7013 and tell them that you have a defective light engine. They will act like they've never heard of this problem but they have. They will give you the names of some certified dealers in your area to call. Once a tech comes out and confirms that it's the light engine, call Hitachi back and they will send a brand new light engine to the dealer and Hitachi will cover the cost of the part (cost $1500).

Here is the deal, if you're under warranty, Hitachi will cover the part and the install. If you're not under warranty, all you pay is the install. Our install cost $400. Others on this site have paid $200. Do not let anyone tell you that you have to pay for the light engine do not. Hitachi has not recalled this part but they are replacing it for free. Also, deal only with Hitachi customer realations number that I listed. Good Luck!

Posted on Mar 05, 2008

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Vertical black lines in center of tv

used to be that if the tv had artefacts you would say, is it near a strong source of magnetism but those days are gone. Nowadays Iwould say, if you have not moved it recently and the lines have just come up on their own check for sources of interference,switch everything else off and removee all peripherals to see if that sorts the problem, an attached device might be becoming faulty.
If that does not solve the issue it might be related to a setting that has been entered.
In that case reset the set to factory default through the option in the settings menus. If you have reset it and it still does the same thing have it looked at.
It might possibly be that there is a source of digital interference in your area also.
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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. Viewing it in "Mosaic" or "Magazine" will make surf easy.
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I would suggest you contact Hitachi customer service to see if their database has this as a known issue in this set.

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Check the ff:
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2. Try to power by remote - if power up by remote then you have a faulty tack switch.
3. Replace Internal Fuse - sometimes because of power surge the fuse fail. However if the fuse blew again this is an indication of shorts.
Next step is not Diy because of the ff reason
3. Voltage regulator - might be open or shorted.
4. H-out transistor - shorted
5. Open fusible resistor in line with the B+.
6.Dry joints

Thanks for using fixya.
Pls rate my help.

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1 Answer

For several months we would get bands of lines across our screen. We thought we were experiencing some kind of outside interference as it would come and go. Two days ago the bands began to cover most of...

You're verical output IC is dead, this might because of a leaky capacitor on that section which causes the lines across the screen.
The processor shuts down the unit automatically to avoid further damage to your tube.

Send it to repair shop to isolate the problem. This is fixable.

Thanks for using fixya.

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Digital pictures don't suffer from interference in the form of "sparklies" or "grainyness". "Lines on the picture" might be caused by an internal fault if the digital receiver is old but most interference will be external - getting into the RF cable after the signal comes out of the digital receiver.

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Hi It sounds like you need to re-tune your DVB-Tuner on your TV, NOT the old analogue one, it'll be in settings or setup, or installation and use the "First Time Install" option, because it clears all old channels and loads all fresh new ones! hope this helps!

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Good Day, poandflo;
After removing the power from TV remove the back of the TV (bottom only): Repair: Re-insert PDM connector on both Main Digital module and Drive PWB.
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Its a long shot but try this,
It can cause problems when you switch set to & from stand bye.

Check that you are viewing a digital TV channel
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Change the setting to Off.

I cant gteee that this will sort your problem out so post here if it doesnt & I will check samsung data base.


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