Top 20 Hitachi 42PMA400 42 in. Plasma Television Questions & Answers

Unfortunately it could be any of several boards, plasma sets are harder to repair because they have a lot more boards than a LED or LCD TV, its probability not worth repairing.

Hitachi 42PMA400... | 51 views | 0 helpful votes

Unfortunately, if there is no headphone connector on the TV there is no practical way of accomplishing the alternate arrangement.

Hitachi 42PMA400... | 89 views | 0 helpful votes

Just get a headphone jack that does not shut off the speakers and have your dad plug his headphones into that.

Hitachi 42PMA400... | 58 views | 0 helpful votes

The problem may be your cable box. If your box is a Motorola , swap it with another possibly from another room in your house. I have run numerous service calls in Dallas / Ft. Worth area only to find the cable box by {MOTOROLA} WAS DEFECTIVE.. Your cable company should also exchange it for free. If the tv does turn out to be the problem, suspect the 24v or 12v from power supply to be low. Probable cause defective capacitors or regulator ic's, or associated zener diodes or open resistors. GOOD LUCK AND LET ME KNOW HOW IT TURNS OUT.....EXPERT-TECH@LIVE.COM

Hitachi 42PMA400... | 37 views | 0 helpful votes

You need to replace your horitzontal buffer boards...they are located on the right side of your tv and there will be two of these. They buffer the signal and cause a problem just like yours.

Best of luck!! thank you!

Hitachi 42PMA400... | 144 views | 0 helpful votes

I also have this television, and it baffled me too. Apparently the 42PMA400E isn't so much a television, it's more of just a "display unit". It hasn't got any built-in channels (can't even connect an aerial into it) and hasn't got any speakers either. To use as a television, you need to connect a reciever (I use a DVD player, as I only use it for the Xbox) to it to display the video, and get some surround sound speakers to connect to the DVD player.

Hitachi 42PMA400... | 364 views | 1 helpful votes

Hi, when I open it got the sound but no picture?

Hitachi 42PMA400... | 233 views | 0 helpful votes


There are two things that can cause this, a buffer board and the plasma panel itself, the bad news is that there is no way to determine what one is causing it without putting the buffer board in the set. If the buffer board fixes the problem then case closed, if it does not fix the problem then the plasma panel itself is bad and the tv will be non repairable because the part will cost over $1300! Yes that is not a typo it is really over $1300.
Now if you have a professional install this for you, you can expect a bill of around $200-$400. Now that repairman is taking a risk because there is no way to know if it is going to fix it because the manufacture made no way to troubleshoot it, therefore he might pass the risk off to you and say something like:

If you want the board replaced and it fixes it then it is going to be $200-$400 (whatever he charges) BUT if I put the board in there and it does not fix then problem then there will be a $150 fee for trying, this is to cover my time and the expense of sending the part back and the restocking fees I will incur.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Hitachi 42PMA400... | 122 views | 1 helpful votes


Excessive fan noise means that either the fan bearing is defective, or that dusti inside fan is making noise.

The best thing to do is replacing the fan. In some case hoovering the fan may fix the problem. Hoovering may damage electronic parts and should be done from distance using a low power hoover.
That is one of the reasons why replacing the fan is a better choice.

The fan is held by four screws, and it is not much different by a computer fan. As a disclaimer I must remind that this is a plasma TV, and that is should be repaired only by an authorized Hitachi tecnician.

Here the spare part for this model.

There may be one or two fans (there are variations of same model). There is a fan in the H1 panel, that is usually making the noise. Details and disassembly explained in service manual.
I uploaded service manual here:Click here to start download..

If the link does not work, start from HITACHI 42PMA400E PLASMA TV

Hitachi 42PMA400... | 170 views | 1 helpful votes

No,fan in Plama tvs,fan only in DLP tvs.One of the power transformer in the power supply board is not give out the right high voltages.

Hitachi 42PMA400... | 99 views | 1 helpful votes

Ur backlight video board is dying,must replaced.

Hitachi 42PMA400... | 34 views | 0 helpful votes

The applicable code would be found in a compatible remote control.

Hitachi... | 21 views | 0 helpful votes

hook up to antenna then go to tv air set up then channel search

Hitachi... | 41 views | 0 helpful votes

Use code search on your Sansui URC to find something that works. If a search through all codes stored in the URC fails, try a different one.

Hitachi... | 19 views | 0 helpful votes

Open internal fuse or power supply failure

Hitachi... | 36 views | 0 helpful votes

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