Question about Hitachi 61SWX10B 61" Rear Projection Television

1 Answer

Hitachi L32HO1UA HD TV blurred images very dark unwatchable scree

Hello there, We bought our Hitachi hd tv less than 2 years ago . Last night whilst watching the tv, the picture suddenly went blurred, almost like 3d with the red, blue and green not lined up in the images on screen, the screen then went very dark, you can still see the images but behind a very dark blue screen and the images are still red, blue and green merged images.It is totally unwatchable now :( What do you think this could be and is it fixable? The model is a Hitachi L32HO1UA HD TV . I would be grateful for any help or suggestions.
Kind regards
ellie

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  • 238 Answers

Hi Ellie!

Maybe in the manual you can find any information how to resolve this problem.

On this page of the manual there are shown most common receprion problems: http://manualsbrain.com/ru/manuals/979781/?page=72

Posted on Apr 26, 2017

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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ctf1800
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SOURCE: Hitachi HD projection TV-red and green wave and alignment problem

KIT10 $29.50
Repair Kit for Hitachi convergence Chassis DP-14G
KIT10 Includes 2 pcs STK392-150 , 1 each of the following 1W axial lead fusible resistors:


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Posted on Dec 05, 2007

BMW Rider
  • 232 Answers

SOURCE: HITACHI ultrascan hd tv....

toni, you`ll need a tv tech for this problem, spark gaps need to be cleaned, crt sockets need to be cleaned and crt pins on all 3 crt`s need to be sanded, this is a common issue with this model set, good luck, BMW Rider

Posted on Dec 28, 2007

  • 579 Answers

SOURCE: Hitachi 51SWX20B's screen has 3d effect

You have a problem with the STK convergence modules. They're on the center circuit board attached to an aluminum heat sink that's about 8" long and 6" tall. You may be able to recreate the problem (hour glass effect) by gently moving the heat sink (which the modules are connected to). This gives the hour glass effect on the picture and the advanced convergence screen. This is an indication that the modules pins aren't solidly connected (meaning soldered) properly. Remove the circuit board and clean the old solder off & resolder the modules pins to the circuit board reconnected the board and then retest by again pushing on the heat sink. The "factory" job was good enough for 3-4 years but the heat (and these modules do create a lot of heat) and stress created from repeated use eventually takes it's toll, weakens the pin connections and our problem occurs. take the appropriate cautions working around the high voltage of the set & use a non-conducting piece of wood to push the heat sink when doing tests.
If soldering doesn't help, then the modules have died and need replacing. Don't buy the $10 cheap ones. Most of them have an upgraded version that is stronger. Also look for any burned resistors in the vicinity of the modules.
Best of luck, hope ya fix it.

Posted on Feb 15, 2008

  • 4234 Answers

SOURCE: hitachi ultrascan HD pic looks like a 3D movie w/o the glasses

You have a problem with teh convergence circuits. This can be caused either by defective convegence ICs or even bad connections at the pins of these ICs. I would first resolder the pins on the ICs. If that fails, replace them. That should resolve the problem. These ICs are large and black, attached to a heatsink and are marked STKxxx. There should be 2 of them.
Dan

Posted on Apr 03, 2008

  • 41 Answers

SOURCE: the Screen looks 3D & Colors don't line up on my big screen????

If the convergence is off more than 1/2 inch or so you can't adjust. you have a failure of hardware. most likely the output IC. This set has 2 outputs for convergence. Each output contains 3 circuits, Six circuits altogether 2 red ,2 blue and 2 green. The normal customer adjustment will only alow adjustment of blue and red. They should be converged onto the green. There is a much more complex adjustment in the service mode for Geometry and convergence. These adjustments are only needed when you replace a failed componnent like the output ic. These ICs have been upgraded several times since the production of this set. The latest and most powerfull version is STK394-160. If feel up to it I suggest changing both outputs and the corresponding output resistors. Then do a complete geometry and convergence alignment.

Posted on Apr 16, 2009

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