Question about Hitachi 42PD8700 42 in. Plasma Television

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HITACHI 42PD8700 not powering up

Hi,
this morning i tried to turn on the plasma and it didnt turn on,i have checked the fuse and its ok,i was wondering if there is an internal fuse and how hard it is to get to it,i am very good at technical things so this would not be a problem for me to fix if i knew what the problem was.
thanks,
alan

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6 Suggested Answers

SOURCE: hitachi pd7200 42" plasma

Its a know fault with these sets - PDU's fail all time, look at avforums.co.uk

Posted on Mar 13, 2008

  • 1 Answer

SOURCE: ESA 42" plasma tv not turning on

I have a 42 inch plasma and I was watching tv last night on it and suddenly it turned off on it's own. I tried turning it off and on and nothing happened. Then I tried to unplug it and replug it and nothing. My remote does not work either. Anyone know what exactly happened? Did my screen blow or what? I hardly ever use the tv and I only had it on from 8:30 p.m. - 10:20 p.m. and it turned off. All the other tv's in my house worked fine - I checked them. Also, my dvd player and cable box is on the same power cord and both of them work. Any solutions or help would be most appreciated!!! Does it just need to cool down or did I burn something out? Help!!!

Posted on Nov 13, 2008

  • 1153 Answers

SOURCE: Hitachi Plasma TV _ AV300E

Depending on the way you hook up the media or cable box, this is what you look for, if you are in the video area then look for V1, V2, V3 or the right one if you are on the RF connection then it also has an A and B side. Try each

Posted on Feb 27, 2009

jhinsincity
  • 616 Answers

SOURCE: Hitachi Plasma P50S601 no picture sound OK

probably needs new scan drive board along with upper and lower buffer boards. it wont be cheap and its best to have a tv shop do it.

Posted on Aug 30, 2009

sethdileswar
  • 253 Answers

SOURCE: Hitachi 42PD7200 Plasma TV gone dead

this problem is from smps power supply of your tv circuit, may be power capacitor may be short , power transister may be short pls check some spair of power supply

Posted on Apr 06, 2010

  • 1156 Answers

SOURCE: my hitachi plasma tv model

Hey,

A common problem for these is bad capacitors in the power supply, Remove the back from your TV and look at the power supply on the left hand side.

You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.if otherwise, the 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.

Hope this will help to fix the problem and do take care in handling the problem.....

Posted on May 26, 2011

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1 Answer

TV Power Problem


If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Search the site by type in the "brand name" of your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Jul 26, 2016 | Hitachi 42PD8700 42 in. Plasma Television

1 Answer

My hitachi plasma 42 PD7800TA does not turn on ,not even the standby ,the fuse is fine ,dont know what else to do? thanks Tony.


Hello
The power regulator board in your Hitachi is not switching. It is an SMPS [Switched Mode Power Supply]. Normally for plasma TVs the power supply repair will be almost impossibele due to lack of component availability. If the fuse is OK, definitley the switching process has failed it it. There is an IC which oscillates at high frequency, whic its oscillation signals are given to MOSFET transistors to chop the incoming AC, converted DC voltage. These switched voltage is passed through SMPS transofrmers which it turn generates secondary voltages that goes to different circuit boards of your TV. The power board is the most important section in a Plasma TV. it must be perfect in every respect in terms of secondary voltages. If any one of this voltage goes over than specified, the main boar will get damaged. So it is adviced to replace it as card basis, rather than making "sugery" to it. The power supply board can be had from Authorised Hitachi Service centers. You just give the the exact model number of your Hitachi TV. They will give you the orginal power supply board. Never play experiments with Plasma TV. OK.

Jul 15, 2011 | Hitachi PlasmaSync CMP4202U 42 in. HDTV...

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The tv wont turn on. tried unpugging it. didnt know if there was a internal fuse of relay switch i could trip.


a fuse you can replace also, if it has lights on, then it's not the fuse. Main fuse kills everything.

Jan 16, 2011 | Hitachi P42H401 42 in. Plasma HDTV

1 Answer

37" hitachi plasma tv doesnt turn on


If you have a light on ( standby light ), then I would say power supply fault, tv could be shut down because of faulty capacitors in power supply. if you dont have any lights at all , check fuse in plug,
( there will almost certainly be a fuse in the tv) but, that is for a tv guy to fix.
pete

Nov 10, 2010 | Hitachi 32HDX60 32 in. Plasma Television

1 Answer

Hitachi 42PD7200 Plasma TV gone dead


this problem is from smps power supply of your tv circuit, may be power capacitor may be short , power transister may be short pls check some spair of power supply

Apr 06, 2010 | Hitachi 42HDT79 42 in. Plasma Television

1 Answer

I have a hitachi 42pd7000ma tv and i need a new ac power cable. where can i get 1 at in melbourne australia?


(03) 8361-5894
Call the above phone number from 9am to 4pm .. There you can get the required part.

The name of the shop is victoria television repair service.. They are authorised dealer for hitachi

Feb 02, 2010 | Hitachi 42PD8700 42 in. Plasma Television

2 Answers

No power


First off I did not see make or model. When plasmas die you have failure in either the power supply of the sustain boards. Do you have any voltage readings from va or vs ?
Craig www.classtorations.com

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2 Answers

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The fuse is either open or it will have continuity do you have any standby voltages

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2 Answers

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unplug. leave off for a few minutes. small chance it will reset.
also, it might have lost its input setting and is no longer looking at the input you send the source signal to.
good luck
mark

Dec 02, 2007 | Hitachi 42EDT41 42 in. HD-Ready Plasma...

1 Answer

Hitachi 42PD8700 U


switch on the dvd player so it's playing, then do a new master tune. press the dtt/tv button so you are watching the internal freeview system, then press menu, then go to installation, and re-install all channels. the tv will then detect your dvd player in the intial set up/tune mode.

hope this helps..

Oct 17, 2007 | Hitachi 42PD7800 42 in. HD-Ready Plasma...

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