Question about Hitachi 60SX12B/13K 60" Rear Projection Television

1 Answer

TV will not turn on. Shuts down by itself.

The problem originally was it would shut down at anytime while operating by itself. No problem, just turn the tv power back on. It progressively got worse where it may do this 2 or 3,4 times a day. Now the set will not go back on at all ,or if your lucky enough where power stays on it eventually looses power and shuts down. After taking a look in back of set with cover off, I do have a red light on which tells me that there is no problem with the power to the set, but nothing else. I really like this tv and works great otherwise, but do not want to spend a great deal of money if it is not worth it! Please help me and give your advice on what could be wrong with the set.

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  • 2 more comments 
  • gpv450 Dec 30, 2007

    What part is c915? Went through partstore.com but could not locate such part no. STRM 6511, they did have replacement part for this. Thanks again!

  • justme1234 Feb 16, 2008

    I have a Hitachi 60SX12B rear projection TV. The TV turns off while in normal operation. The problem has been getting progressively worse. At first it would shut it’s self off on rare occasions and would work fine once it was turned back on. As time went on it became daily until now it will turn it’s self off and not come back on unless I wait a few minutes then it will shut down after a minute or two. I called Hitachi service center and was told to unplug the TV for 1 minute and try again. When that didn’t work she said to try another outlet. I said your just reading a “cook book” and aren’t really a technicians aren’t you. She answered, “Not really.” I thanked her and hung up.

  • Anonymous Dec 08, 2008

    I have a similar problem with the same TV. Although it has never shut itself off, it will not turn on. I can hear a relay click when I try to turn it on and off either with the remote or at the TV, so the TV does have power. Does this require the same fix or is this a different animal? This is the first trouble I've had with the TV since I bought it in 1996. Although it's huge, it has always worked well and I'd like to save it if it makes sense.

  • Amax3 Jan 19, 2009

    I turn the tv on, about 10 minutes later it shuts off. I turn it back on and it shuts down again. I opened up the back and figured out that the protection on the circuts was shutting it down. So, I pushed the reset button that is located next to the magic focus button at the front end of the tv and it still shuts down.

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  • Master
  • 373 Answers

Hi,
These Hitachi models are a bear but this may be the fix: Regulator STRM 6511 and C915. A good tv repairman should know this. This should be changed first before determining that the high voltage transformer is bad which is likely to be the worse case senario and may not be available anymore.

Posted on Dec 30, 2007

  • TV Doctor
    TV Doctor Dec 30, 2007

    Hi again, c915 is located on the power supply board that has the strm 6511 regulator ic and it is a capacitor with a value of 3300 micro farads at 50 volts. The number c915 is a location number printed on the board itself. If you replace it yourself you must realize that is has a positive and negative poles. You can see the negative sign on the side of the capacitor. The new one must go back the same way. I would urge you to let someone you know that has experience with soldering and desoldering electronic circuits do the job. I am going by memory on the value of the capacitor but you could check it by looking in your tv. I may have the voltage rating wrong too. It may be lower. like 35 or 25 volts. This is the best I can offer you at this time . If you have anymore questions please do not hesitate to ask.

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