Question about Hitachi P42H401 42 in. Plasma HDTV

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I have a hitachi plasma tv p42h401 it have no power. the five volt supply is being pull down by the main board.

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NO POWER LIGHT, NOTHING. IS THERE A RESET FOR THIS HITACHI?

Posted on Sep 14, 2009

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Posted on Jan 02, 2017

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1 Answer

TV sound goes of after a short time


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Apr 15, 2016 | Hitachi P42H401 42 in. Plasma HDTV

1 Answer

Replace procedure for power supply capacitor in P42H401 Plasma TV


If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. Electro help

Jan 12, 2014 | Hitachi P42H401 42 in. Plasma HDTV

1 Answer

Volume works but picture wont show


It is likely your TV has power supply trouble.

Nov 08, 2013 | Hitachi P42H401 42 in. Plasma HDTV

1 Answer

Hitachi plasma tv wont turn on


Check and replace the main power regulator board. There is no repair to these boards. Card must be replaced with new one. But when you replace it with a new one, some adjustments should be done. Teh work is actually somewhat semiskilled one, which a user without proper knowledge in electronics can't. If you wish to get some idea about, what are these adjustments, check this link.

Mar 03, 2013 | Hitachi Televison & Video

1 Answer

I have a 42 inch Hitachi plasma tv that is making a very loud static noice coming from the internal speakers. It stays at a contstant very loud volume unless I completly mute the tv or turn the volum


Based on what you have tried if a buzz or loud static via the speakers you have something wrong in the audio output circuit of the set--problem here is that circuit may be part of the Main board that processes all signal---a look inside---following the speaker leads back would lead you to that board.

A simple thing to do to narrow it a little (you may have done this) is with sound all the way off put your ear to the internal speaker--hear anything at all like a deep hum?

Depending on age of set and cost of the board likely bad it may or may not be a do it yourself repair.

SD TECH

Apr 26, 2012 | Hitachi P42H401 42 in. Plasma HDTV

2 Answers

Had my tv looked at by a technician and they said it needed a new main power supply,it was to expensive to fix so i bought a power supply and instaled it but it dont work what can i do


Usually there is a warranty period like 30 days.Ask for a replacement if that dont work either there is another problem goin on.Then just ask for your money back,there is sometimes a restocking fee.

Oct 22, 2009 | Hitachi P42H401 42 in. Plasma HDTV

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