Question about Hitachi P42H401 42 in. Plasma HDTV

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I have a Hitachi P42H401 television that has no audio output. Nothing was done to this television, it has sat in the same location and worked fine for nearly a full year. Without any reason the audio output just stopped and even connection the audio to an external sound source produces no audio. Any thoughts?

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Check software upgrade

Posted on Jan 03, 2011

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Hitachi P42H401 the 3 HDMI doesn't work.


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Aug 13, 2016 | Hitachi Televison & Video

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

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

1 Answer

I have no audio on the HD stations with my Hitachi Ultravision television. My Sony flatscreen in another room works fine.


Check if the audio output on A/V pins have a fine sound output on the audio pins, using a headset. if you dont hear a fent sound from the pin sound coming from the pre amp, then take your tv for a replacement of an audio ic output power amplifier.
thanks.

Sep 23, 2009 | Hitachi UltraVision CineForm 55VG825 55"...

1 Answer

Does anyone have the table top stand for sale ? tia


You can order a replacement stand assembly for this model (P42H401) from a major Hitachi parts distributor at the link below:

Hitachi P42H401 Replacement Part Stand Assembly / Table Top Stand

Apr 15, 2009 | Hitachi P42H401 42 in. Plasma HDTV

1 Answer

Set up


Seems that Hitachi DESIGNED the sound to cut off from the Audio Out jacks if you use component video or HDMI inputs. Has to do with copyright laws of the HD Video -- which makes it asinine that they disabled the audio as well, as it's not part of the copyright issue. Seems to me they were just lazy to disable the ENTIRE set of output jacks.

I am hoping to find some sort of hack for this (either firmware or severing/splicing a control wire). However, I can't find much information on this yet.

Sep 14, 2007 | Hitachi P42H401 42 in. Plasma HDTV

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