20 Most Recent Hitachi 55FX20B 55" Rear Projection Television Questions & Answers


It sounds like what is called a "convergence" problem; 3d looking with colors out of place etc.

Most of these sets use two of the STK-392-150 chips for this (see photo) and you can look inside to see which are in your set.

A pair of the chips on EBAY sells for about 13 dollars and the only other parts usually involved may be a resistor damaged when the chips failed----this is the exception rather than the norm.

If you or someone you know can solder, etc I can tell you the best way to get at the parts and everything you will need to do the repair; for me----I have repaired over 1,000 sets with this kind of problem.

I am attaching photo of typical convergence problem and what one of the STK chips looks like (chip is 2 1/2 wide/ 1 1/2 tall with 18 pins).

If the photos and this information told you something you did not know rate this solution as very helpful as I do this here for free.

SD TECH





Hitachi 55FX20B... | Answered on Aug 13, 2010


Replace Both of your STK ICs they are big black ICs will have part number on then STK392-110s upgrade to STK392-180s better ICs Call Mats Electronics
1-800-628-1118

Hitachi 55FX20B... | Answered on Mar 16, 2010


I just got done putting my panasonic 50 projection back together. There is a thermal cut off relay on top of your bulb box, can normally be seen after removing the back of the tv. With the tv unplugged make sure the area around this relay is clean of dust. If the simple fix dosn't work make sure your cooling fan is coming on with the tv.
Kevin

Hitachi 55FX20B... | Answered on Oct 29, 2009


Hi, I agree that the regulator IC is probably toast but you`ll need a service manual to figure the rest because none of the leds are on which means NONE of the secondary supplies are running, check the chemical fuses and I`m sure some will be open. you can go to encompass parts on the internet to order the sm, trust me you`ll fix it a lot faster, gl, video-tek

Hitachi 55FX20B... | Answered on Jun 05, 2009


There isn't any reset button. All you have to do is to take out the power source. Anyway, double check the wires... are you sure all are well connected?

Hitachi 55FX20B... | Answered on Apr 01, 2009


TV always has high voltage shock risk while repair. As you said you are not familiar with TV repair so better to handle repair person this issue.

Hitachi 55FX20B... | Answered on Oct 01, 2008


I guess i wondering why you think it needs a new power supply, almost always the Bad components are replaced

Hitachi 55FX20B... | Answered on Dec 06, 2007


You would need to select MENU which, of course, you can't because you don't have a remote control.

Hitachi... | Answered on Aug 27, 2020


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
View the site by desktop or web view on mobile devices to see the "search box". Type in the brand name of your set in search box; to get gathered the related posts.
Screen-shots to defective LCD panels are given. You can see and compare to that to your TVs', and can make sure about the fault to an extent.

Hitachi... | Answered on May 27, 2020


First make sure that the current Source or Input is set to TV. This is usually the only reason for the error message you see. To select the source, look for a Source or Input button on the original remote. If you have an universal remote with a button with the Source/Input label, you may need to try alternative codes to make the button work. (Power and channel controls will often match across multiple codes for the TV manufacturer.) Alternatively, check if there is a Source/Input button on the TV or a section of the menu system with the function. Once you set this source, try again.

Note: there was a period when manufacturers sold some TVs without tuners. They were labeled HD-ready sets. These can't do a channel scan and do not have an RF antenna jack on the set.

I hope this helps. Please add a comment with the model number of your Hitachi TV for more information on setting the source on your set.

Cindy Wells

Hitachi... | Answered on May 22, 2020


Under Audio or Audio Settings on the on-screen menu, TV Speakers is set to On. All of the cables physically connected to the TV and the input devices are secure. Switch to a different input device and verify there is sound from the TV speakers (for example, a DVD player or a gaming console).
https://www.ifixit.com/Answers/View/310570/The+sound+on+my+TV+stopped+working.

Hitachi... | Answered on May 17, 2020


It is reporting reduced air flow due to a clogged filter. Swing the case upwards, remove the filter and wash it is soapy water. Rinse, dry and replace it.

See yonder videos

https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk00iKHgEuCo9ZiAKv6-cznuCodHQQA%3A1588957722275&ei=GpK1Xo6xEI6PtAbs3IHgCg&q=hitachi+air+conditioner+filter+cleaning

Hitachi... | Answered on May 08, 2020

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