Question about Hitachi P42H401 42 in. Plasma HDTV

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How to replace power supply capacitor in 42" Hitachi plasma tv

No picture and sound unless the tv is unplugged and plugged back in numerous times every 15 minutes up to an hour intval

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I assume that you have already identified the bad capacitor/s? Then it is an easy fix by unsoldering and replacing the capacitor/s with the same values. Caution: Ensure that the same orientation of the + and - leads are installed in the same manner of the original capacitors.

Posted on Dec 27, 2013

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Posted on Jan 02, 2017

Drummernick
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SOURCE: Hitachi 50" plasma no picture

well they give usaly 1 yr parts labor i would get it in asap to be fixed bad power thx nick

Posted on Feb 07, 2008

scottyfixit
  • 186 Answers

SOURCE: Hitachi 42HDS69 42 in. Plasma... Problem

Describe the past - How did it fail? One day or acting up for a while? Could be a weak power supply - a bad capacitor on a power supply too. Look for popped up capacitor top inside.

Posted on Apr 29, 2008

Fujitsu
  • 29 Answers

SOURCE: Hitachi Plasma TV model P50H401

I think you have problems with the digital main PWB.

If the power PWB failed, turn off and change the pilot ligth to red.

Posted on Nov 28, 2008

  • 1 Answer

SOURCE: 42edt41a hitachi plasma tv went dark sound ok

sounds like your y and z drive boards over heated and need replacing...

Posted on Jun 03, 2009

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1 Answer

My plasma TV will turn on, but there is no picture.


Wow so you've spent a lot already. I'd buy a new tv dude. It sound to me like something else has failed on a power board and they just don't replace small parts anymore you need to spend the money to replace the boards usually unless you find an old school TV technician willing to do it. It could be a the power supply so before you try anything costly see if you have a similar power rated supply around the house and see if that is the problem. Good luck. + Google the issue and you may find it to be a simple answer.!

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There are components on the power supply board that are failing. www.shopjimmy.com has a wide array if service parts kits that contain the most often failed components. Prices are good. These are for do it yourselfers, so if you are uncomfortable with a soldering gun, then have a repair shop do it. After 11 years, though , it may be time for a new one.

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Hi,

power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

I hope this will help in solving the problem...

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Checking the power supply board,that the board,where the power a/c cord plug into it.Could be dying to be dead capacitors parts.Check the power supply board carefully,look for capacitors parts are bulging or puffing up on it tops.U have all the tools and know basic eclectronic also can do basic soldering.Replaced all these dying to be dead capacitors parts,will solved this problems.Or try website like Ebay.com,to buy a whole refurbish power supply board for the replacement.

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Then it is probably not cold solder joints. You wouldn't think that an lcd TV would need a high voltage transformer but it does. They are very small compared to CRT televisions but they power up the screen. Without it you have no backround light to veiw what is there. There are two neon lamps on either side of the screen but they rarley go bad. My guess is the transformer ot the power supply feeding it.

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2 Answers

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Describe the past - How did it fail? One day or acting up for a while? Could be a weak power supply - a bad capacitor on a power supply too. Look for popped up capacitor top inside.

Apr 29, 2008 | Hitachi 42HDS69 42 in. Plasma Television

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