Hitachi 61UWX10B 61" Rear Projection Television - Answered Questions & Fixed issues

Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

• Screen looks 3D
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.
• TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.

Here are some pics of convergence problems.





SOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.


TV set after fluid change



SOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Hi there,

Your description of the problem lacks some essential details, but I will try to give you an answer. If my answer does not solve the problem, you will need to provide me with some further details.

The most common cause of this problem is not the TV. If you are using a cable or satellite receiver it is not unusual for the software/firmware in these receivers to "crash" and stop sending audio to the TV.

If you are using a cable/satellite receiver or a digital converter, please try re-setting it. Some of these devices have a "RESET" button on the front or back. If you can find a reset button, try pressing this and then wait for the receiver to "re-boot". If you don't have a reset button, switch the receiver to standby, then unplug it from the electrical outlet for a couple of minutes before plugging it back in and trying it again. This is often sufficient to solve this problem

If you don't have a cable/satellite receiver and/or this does not solve your problem, please reply to me from within this page with the following details:

1. Brand and model number of cable/satellite receiver or digital converter - if using one.
2. Do you have sound from any another external input, e.g. a DVD player.
3. What were the circumstances in which the sound output on your TV failed.

Hope this helps - please supply the information requested above if you need further assistance.

Thanks,
BElectric

The chips and 12 resistors need to be replaced, below is a link where you can find them. I've done business with them. They're very reasonable and give you step by step instructions to fix it yourself.




http://www.tvrepairkits.com/xcart/product.php?productid=20080&cat=1647&page=1

change your tv mainboard
i hope this helpfull
please rate my answer

[BRAND SPECIFIC][TOSHIBA][QUICK FIXES]
Flashing LED
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If your set all of a sudden won't come on, e.g., the screen is blank, but the LED on the under the screen next to the on/off switch keeps flashing, then there may be an internal fault on the set that needs to be reset.
To force the reset, try this:

• Unplug the set and wait a few seconds
• Replug and see if the video returns

Whenever the set senses an internal fault through its monitoring circuitry, it essentially shuts down the set. The flashing LED provides the indication that a fault has been detected. Removing power to the set resets the monitoring circuitry. When plugged back in, the circuitry again does a check of the system. If it finds that there truly is a problem, then the set is shut down and the LED will again flash.

www.servicemanuals.vstaore.ca should have the manual you need.

the ics could have been defective, or maybe you missed a resistor or something. the ics could short out and cause the tv to totally shutdown if dead shorted, as some of these have no fuses. I would doublecheck all your solder connections and make sure nothing is shorted out and look for other bad resistors. here is my tutorial if this helps
http://www.fixya.com/support/r5001731-convergence_diagnosing_convergence
Let me know if I can be of further assistance.

This is a model that had a lot of problems with the audio.

I worked on a lot of them when they were first made and sold.

What happened was some idiot had the bright idea of placing the entire audio circuit on a single small circuit board mounted on the left inside wall of the set (as you look from the back).

All sound from all inputs and the tuners goes into and out of this board and they mounted the audio output IC chip directly over a number of large surface mounted chips---heat from the chip damages solder connections all over the area around it.

Hitachi did have a service bulletin about this which basically said resolder everything---hundreds of fine connections---surface mounted means most of the fifteen or more chips are mounted on the top or bottom and are soldered to the board---not through the board as is usually the case.

I have seen technicians try to repair them and spend hours and not have success. The board is no longer available from Hitachi and the only way to get it fixed now is to remove it and send it to a national company called PTS Electronics who repairs and rebuilds all kinds of circuit boards.

The last one of these sets I saw was in the shop I work for and we did not fool around as it was under extended warranty---turnaround for the board (you have to remove the one in your set and send it to them) was about 7-10 days and cost was about 150 dollars but you can find their address on the net and ask for a quote---Part number for the Surround Audio board is:

X480233


Let me know if you have questions or need advice.

PS: I have seen two people who got around this problem by getting a surround sound system fed directly for audio from their cable box, this may be a much less expensive way to settle this issue.

SD TECH

the manufacturer date is always by the model#

Know basic soldering?That all require changing convergence ICS all it resistors.Tries Tv repair World.com,Tvrepairkits.com for the convergence kit.

Colors 3D like?Ur convergence it dead.Must replaced the convergence ICS all it resistors to solved this porblems.If same problems,than he did put in functional board.

Ur convergence is dead.Must know how to solders?Replaced convergence ICS and all it resistors.Tries Tv repair World.com,Tvrepairkits.com to buy a convergence kit.Shop will cost u $300 for parts and labors.

have you reched around the new soldering area carefully, check for solder spills or drops in the printed circuit, also another thing to look for is some of those replacement stk do not hold their weight, you might want to take them out and try the old ones to see if you recover tv power.

You have a convergence problem. Go into the menu and you should find a convergence alignment menu, try to align it there, if you can`t then you probably need local help from a tv repairman. good luck

The convergence ICs have failed. Very common problem with all rear projection Tvs.

Did u try the auto or manual convergence?

convergence chips need to be replaced. if you are handy with a soldering iron, you can fix them yourself with parts from partsstore.com or you can have a technician replace them which is expensive. its cheaper to do yourself

Replace the convergence ICs you need two STK392-110 convergence ICs You can get replacement ICs at the folowing link with free isntallation instructions.
http://servicemanuals.vstore.ca/

Replace both of your STKs these are your convergence ICs STK392-110- use STK392-180s .

Sounds like a bad convergence circuit, unless you know how to use a meter and solder well you will need to call a reapir man. This repair should run you anywhere from $300-$500 depending on your area and the tech that comes out. If you were to do it yourself it would run less than $100. Please let me know if you need more info or would like to try it yourself.

Tim
[email protected]