Question about Hitachi 53UDX10B 53" Rear Projection Television

1 Answer

Tv comes on after being turned off.

Relays on power supply board sticking . Is this a common problem ? Is there a repair kit ?

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  • 66542 Oct 22, 2008

    My Hitachi 51UWX20B turns on by itself also. It can be turned off in the evening and 1 or 2 times a week it will be on the next morning. Its been doing this for several years. I'm just used to it.

  • cddad1960 Oct 23, 2008

    Yes relays are sticking . power light will stay on some times ,but picture goes out with remote . Some times both go off. wake up in middle of night and TV will be on . IR sensor is working because all controls work with remote, except the power will not stay off. Im looking for a repair kit and if any service bulletin issued by Hitachi for this problem .

  • jason May 11, 2010

    or it just may need new solder

  • jason May 11, 2010

    are you sure that they are sticking? because it wouldn't shut off if it were stuck

    are you sure its not the IR sensor? or the crystal?

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It probably just needs some soldering then , when we get these in most of the time it needs new solder because after the set has been running the set heats up thus causing the solder joints to crack and not connect well , and the problem only gets worse as more components solder connection also start to crack and not make very good contact , this usually happens in the tuner solder joints and other components that create heat , so it will need to be looked at to find the bad solder . rca gave us a kit to fix some of the problems that happened , and it was a better solder with a paste that made a better hold on the heated components and connections
hope this helps

electech

Posted on Oct 23, 2008

  • 1 more comment 
  • jason Oct 23, 2008

    also if you move the tuner a little bit and the tv shuts off then there is a bad conection there , but otherwise lleaving it plugged in like that condition will make something else burn out and cause more problems , it should get a resolder imediately!

    hope this helps



    electech

  • jason Oct 23, 2008

    also there could be a Short circuit on 24v line

  • jason Oct 24, 2008

    also change all electrolitic capacitors on the power oscillator circut and check them all over the board , check zener diodes( regulators)also

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Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
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  • Screen is very dim or flickers.

Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

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Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
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