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Hitachi model#51uwx20b serial#v21018946 it will turn on and then shuts off then wont come on and know it wont come on any help

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  • Justin Rubsam
    Justin Rubsam May 11, 2010

    Most common problem on these sets is a failure in the convergence correction circuit. Are you getting a specific number of blinks on the front power LED after it shuts off or are they simply continuous?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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techman
  • 3130 Answers

SOURCE: hitachi rear projection tv model 51uwx20b

You have a bad tuner or there is a capacitor bad in the color burst circuit.

Posted on Sep 09, 2007

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IrishDruid
  • 2712 Answers

SOURCE: Hitachi blue convergence problem. Parts?

1. Try this - hold the menu button down for 10 seconds. TV should power up; you will have to turn off front panel buttons on menu.

2. You can also try plugging in the TV through the USB on its panel to a computer or USB charger, and it may work. However, this is only a temporary solution.

3. Powering down the set or putting it in standby may have allowed the power supply to cool. Weak capacitors often go out of spec when they cool, thus preventing a section of the power supply from firing up properly again. There is a simple trick...just warm the back of the TV with a hair dryer for 5-7 mins after you have unplugged the TV. Look for the little areas of holes in the back panel of TV. Use these as your guide at where to use the hairdryer, but don't hold the dryer too close (say 5-6inches away). (Make sure the dryer is on High heat). If the TV doesn't turn on after you have heated it up (like it tries to come on but then turns off) you need to unplug the TV again, this resets it. And repeat those steps till it works. Resetting the TV after it fails to turn on is the key. Also, just leave the TV on. Don't turn in off. Since it is LCD, it doesn't take much power...only a few bucks extra a month for your utility bill.

4. A circuit board may crack about some of the larger components mounted on it. You can inspect the PCB's for fractures, and then repair them. It may also be poor soldering that has failed. I would be checking for these things first.

5. If you want to go in for a long term solution, you can easily replace the whole power board or just change the faulty capacitors. You will have to open the back panel and take a look. You can make out which are faulty, because their caps will be swollen on top. Here's a sample pic (not same model):
d4dea15.jpg
Check the specifications of the faulty capacitors, and get the replacements from your local electronics shop. If you are comfortable with this, you can use a pair of needle nose pliers to G-E-N-T-L-Y pull out the defunct capacitors. Once that is done, solder in the new capacitors carefully. If are unsure how to do this, try to get a friend who knows how to do this kinda stuff do it for you, or get a qualified technician. Warning: If you do not have a background in electronics repair, or are inexperienced, get a qualified technician to do it for you.

REMEMBER there are very dangerous voltages inside a TV that can KILL. Be sure to work SAFE when dealing with electricity. DISCONNECT THE POWER BEFORE YOU DO ANYTHING.

Hope that helps!

If your issue is not resolved, please do not assign a rating just yet. Please post back as to what steps you took, results, etc, and I will try to assist you further as best I can. I am here at your service.

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IrishDruid

Posted on May 05, 2008

  • 2 Answers

SOURCE: Hitachi 51UWX20B spider web like lines help

I know my response is a while after you asked, but to clean the inside of the tv case is pretty simple.

Remove the bottom speaker cover...on this model you just pull it off. There is no clips or screws.

Once the speaker cover is off you will see the bottom of the screen, there is 4-5 screws on the bottom on each side....I think 4 in the gray plastic and 1 in a black metal strap. With all of those screws out pull out SLIGHTLY on the screen and push up. The top is held in with a down force clamp and you are just popping it out of that....It will pop back in once you are done.

Now clean the back side of the screen, the mirror and CAREFULLY dust off the lenses. I myself did not want to use any cleaners (to avoid streaking) so I used a new microfiber dusting cloth. My picture became brighter and the "crack" that I thought I had was just a dust web....

Hope this helps and good luck
N8

Posted on Jul 23, 2009

ladywinn
  • 5138 Answers

SOURCE: My Hitachi 51uwx20b shuts itself off a second

Replace Both of your STK ICs 392-110s use 150s call Mats for parts 1-800-628-1118 also CK resistors (rk)42 3.3ohm (rk46) 1.8ohm (rk50) 2.7 ohm (rk54) 1.5ohm (rk58) 3.9ohm (rk62) 2.2ohm STKs maybe STK394-160e Look on yours go by number on them.

Posted on Sep 19, 2009

info33
  • 72 Answers

SOURCE: I would like to know if the Hitachi 51UWX20B

Your Hitachi 51UWX20B is an HDTV-Ready TV. No Digital Tuner. HDTV-Ready means that your TV set is capable of displaying analog and high-definition digital pictures, but without a digital tuner, it cannot receive the digital signal. An HDTV-Ready requires an external high-definition TV receiver (digital tuner) in order to receive HDTV signals. These external receivers can be called an HDTV Tuner, set-top-box, decoder or DTV Converter Box . So you will be required to purchase a converter box to receive over the air programming from an external antenna.

Posted on Jul 03, 2010

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1 Answer

Hitachi 51uwx20b magic focus worked a few times but not now


It is very easy to determine weather if you need to do a convergence repair or just make an adjustment with your TV's original remote. Take a look at this youtube video...

Hope this helps!

Nov 19, 2011 | Hitachi 51UWX20B 51" Rear Projection...

1 Answer

I would like to know if the Hitachi 51UWX20B television can be connected to the internet.


Your Hitachi 51UWX20B is an HDTV-Ready TV. No Digital Tuner. HDTV-Ready means that your TV set is capable of displaying analog and high-definition digital pictures, but without a digital tuner, it cannot receive the digital signal. An HDTV-Ready requires an external high-definition TV receiver (digital tuner) in order to receive HDTV signals. These external receivers can be called an HDTV Tuner, set-top-box, decoder or DTV Converter Box . So you will be required to purchase a converter box to receive over the air programming from an external antenna.

Jul 03, 2010 | Hitachi 51UWX20B 51" Rear Projection...

1 Answer

I had my 51uwx20b tv for 7 great years. for the


needs soldering the bad connections on the convergence board

Nov 17, 2009 | Hitachi 51UWX20B 51" Rear Projection...

1 Answer

My Hitachi 51uwx20b shuts itself off a second after I turn it on. I have tried to unplug it and let it reset, but the problem continues?


Replace Both of your STK ICs 392-110s use 150s call Mats for parts 1-800-628-1118 also CK resistors (rk)42 3.3ohm (rk46) 1.8ohm (rk50) 2.7 ohm (rk54) 1.5ohm (rk58) 3.9ohm (rk62) 2.2ohm STKs maybe STK394-160e Look on yours go by number on them.

Sep 19, 2009 | Hitachi 51SWX20B 51" Rear Projection...

2 Answers

Hitachi 51UWX20B spider web like lines help


I know my response is a while after you asked, but to clean the inside of the tv case is pretty simple.

Remove the bottom speaker cover...on this model you just pull it off. There is no clips or screws.

Once the speaker cover is off you will see the bottom of the screen, there is 4-5 screws on the bottom on each side....I think 4 in the gray plastic and 1 in a black metal strap. With all of those screws out pull out SLIGHTLY on the screen and push up. The top is held in with a down force clamp and you are just popping it out of that....It will pop back in once you are done.

Now clean the back side of the screen, the mirror and CAREFULLY dust off the lenses. I myself did not want to use any cleaners (to avoid streaking) so I used a new microfiber dusting cloth. My picture became brighter and the "crack" that I thought I had was just a dust web....

Hope this helps and good luck
N8

Mar 06, 2009 | Hitachi 51UWX20B 51" Rear Projection...

1 Answer

Double image


Problem seems in convergence out section.

TV needs Convergence Out ICs replacement.

If you have TV repair experience and know good soldering work then you can give it try OR get help of qualified TV tech to fix it.

If you need further help, let me know.

Dec 30, 2008 | Hitachi 51GWX20B 51" Rear Projection...

1 Answer

Timer light flashing TV won't turn on. Year 2004, Model WS65513


bad capacitors in your DM module. easy fix. let me know if you havent fixed it yet.

Sep 06, 2008 | Hitachi 51UWX20B 51" Rear Projection...

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