Question about Hitachi 42PD7200 42 in. HD-Ready Plasma Television

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Hitachi LCD TV Dead

TV is just under 2 years old and was fine last night. Now totally dead. Have changed the fuse in the plug, checked the power lead and tried a different socket. Is there an internal fuse that may have blown? Thanks.

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  • Hitachi Master
  • 933 Answers

There is a internal fuse on the power supply board. When you plug in the set, does the standby light come on?

Posted on May 11, 2013

Testimonial: "Just noticed the model is wrong in the heading. It's a 22" Hitachi LCD L22VG07U. When plugged in there are no lights at all."

4 Suggested Answers

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Posted on Jan 02, 2017

repairtech99
  • 767 Answers

SOURCE: no power - have checked fuses, power leads and master switch

Well yes, there a problem in the power supply modual.
It does sound like a failing power supply , becuse of the
fact you don't get charge up spark from the plug , wich is normal
affter it's been off /unpluged for 20 min or so .

check the resistance of the plug coming from the set with a volt meter if you have 10 meg ohms or higher,
it's an open circuit and more than likely a 1.50 fuse in the power
supply. If the fuse blows instantly then it's a shorted output transistor or rectifier diode in the switching power supply.


Be a shame to pay 300.00 plus for a stupid fuse.

hope that helps a little . if you have any questions just comment
an i'll respond
.
Rob

Posted on Oct 04, 2009

  • 8457 Answers

SOURCE: Dead TV

U know basic electronic's,and u know how to do soldering?Have soldering iron,tools and solders?The power supply board,the board that the power a/c power cord plug into it.That the power supply board have these parts call capacitors are dead.These capacitors alway bulges up on it top or puff on it top.Check all around the power supply board and it supporting boards.Replaced these dead leakage bulges up on it top or puff up on it top.Or tries websites like Shopjimmy.com,Ebay.com to buy and replaced the whole refurbish power supply board.

Posted on May 28, 2010

jdvillanueva
  • 2098 Answers

SOURCE: my hitachi 42pd6600 is not working,switched it off

Hi Peter,

Here are some basic steps that will help you fixing the problem.

I'm assuming that your unit is dead set without an standby LED light and your outlet is live.1.Power cord - check the cord it might be opened (no continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse- sometimes the fuse fail because of the power surge, replacing with new one will cure the problem, If this is the case I would advice you to use surge protector/AVR (Automatic Voltage Regulator). However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and still the unit didn't power up then you have an open parts on the power supply.

4.If you see that the fuse is intact , don't attempt to touch anything because there some fatalcomponents stored electricity enough to hurt you with a simple mistake only. I would advice you to look for a professional to troubleshoot the power supply. If you want to repair it yourself make sure that you have necessary tools and test instrument. First check bad solder joints(re-solder all cold solder), leaky electrolytic capacitor(sometimes it has bulged at the top but not all, you better have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat sink), open fusible resistor (caused by shorted regulator Transistor/IC), shorted zener diode.

You may also replace the power supply board, try online like ebay.com and shojimmy.com.

Also check if your unit is under warranty before opening the back panel, it will void the warranty. Avail it because the manufacturer of your unit will fix it for free or a little charge only.

Hope I helped you.

Have a nice day!

Thanks for using fixya.

Posted on Mar 11, 2011

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if its less than 2 years old and its totally dead check the fuse in the plug change it anyway and then give it a try but if its still totally dead then this points to either the fuse been blown in the telly this is a little clear glass fuse located where the mains cable plugs into the main power board, if this fuse is not blown also then the whole power board will need replacing.

let me know how you get on or if you need further assistance ok

plz rate this solution as i have a whole page of unrated posts, thanks

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