20 Most Recent Toshiba 57H82 57" Rear Projection Television - Page 3 Questions & Answers


this is known as hyperboard or hypermodule problem. Now toshiba knows about this problem (common) and has issued repair instructions for service centers. The bad news is this repair is quite labor intesive. When this fault first occured the thing to do was to replace the cuircit board. as time went by the board became more difficult to find. So the discovered and intructed how to fix this board on the component level. The repair involves removeing the board. This board involves removing alot to get to it. Then replaceing 11 micro capacitors. Let me just say it takes very experience tech some time and a large magnifer with twezers a few hours to do this. i have repaired a few and i still have trouble. it is very easy to damage the board. IT CAN BE FIXED and labor cost might add up. our shop repaired about 2 of these of month for around 300 and most of that was labor if you choose not to fix it it might last 6 months or a year.

Toshiba 57H82... | Answered on Feb 16, 2011


It sounds like it has cost you a fair bit of money over the years. It would be great to get it going again but if you stand back and look at what it may cost, would it not be wiser to put your money into some more modern technology?
Convergeance errors are unlikely to be easy fixes. I expect the power supply is getting noisy and producing distortion on your picture. Replacing the many aged capacitors will possibly repair it.
Hope that helps.

Toshiba 57H82... | Answered on Dec 29, 2010


hyperunit failure. that tv uses whats called a " next hyper-unit" it is the digital scan card for the tv. it does the video and audio processing for the tv. they can be very heat sensitive and get better ot worse over time. the repair is very involved i suggest calling a repairman.

Toshiba 57H82... | Answered on Dec 23, 2010


Hello,

it sound like convergence chips ic 2 big black ic at the back of the TV connected to a metal frame called a heat sink they will need to be unsoldered also there may be resistor in front of the ic these will need to be tested and the 2 capacitor as well.
also note that
Convergence problems are usually caused by a diode on the convergence board. These little critters have a tendency to short out and cause the convergence to do strange things.

Obviously, this is not a job for the home owner because few of you know electronics. So, call in the technician to make the troubleshooting of the circuit. The diode costs $.98. The technician will cost you about $250. Don't ask me to explain it.
That's the way it is today.

hello

Toshiba 57H82... | Answered on Dec 22, 2010


Is a common problem. Your hyperboard has failed. You can get a repair kit from www.TvRepairKits.com or buy a used hyperboard - but it will also fail someday unless it has been repaired with better parts than what the factory supplied.

Toshiba 57H82... | Answered on Dec 22, 2010


PROBABLY A BAD "HYPERUNIT" FAILURE. IT IS THE DIGITAL SCAN CARD FOR THE TV IT IS WHAT MAKES IT HIGH DEFINITION. IT DOES ALL THE VIDEO AND AUDIO PROCESSING FOR THE TV TRY TO HOOKUP A HIGH DEF SOURCE MAYBE A GOOD DVD PLAYER OR HD CABLE BOX AND IT MAY LOOK BETTER FOR WHILE BUT WILL FAIL ALL TOGETHER SOONER OR LATER.

Toshiba 57H82... | Answered on Dec 17, 2010


IF THEY ARE JAGGED LINES IN THE VIDEO THEN YOU HAVE A "HYPERUNIT" FAILURE SUGGEST CALLING A SERVICEMAN TO REPAIR.

Toshiba 57H82... | Answered on Dec 17, 2010


Your convergence ic's need replaced along with any bias resistors that are burned. If you are not experienced in doing soldering and using an ohm meter then I would have a tech do the work.

Toshiba 57H82... | Answered on Nov 27, 2010


Hi,
Closed caption comes in clear because that's part of the menu software which is 'down-stream video' and its a separate display function from input video processor codecs. Ok here's the deal with your TV problem, the squiggly lines you see are a result of faulty 'Hyper Module' that has around 15 surface-mount electrolytic capacitors that have warped internally (high ESR levels). This is a known problem with this model of TV, the repair its self is easy its just removing the Hyper Module that's tedious. To fix this problem requires removing the hyper-module from the main logic board and replacing around 15 capacitors of equal value and that's it....problem solved.
http://tvtechwork.webs.com/

Toshiba 57H82... | Answered on Nov 17, 2010


This is a CRT projection tv - the image is generated individually by 3 tubes.
If the image looks like in 3D then the images aren't properly aligned, either because:
- in time the alignment gradually went off - the parts have aged and the convergence setting no longer suffice; you will have to redo the convergence from the Menu of the tv: the instructions on how to do it are in the user manual. Beware, it's a long procedure that must be done exactly as explained there.
- the convergence board itself is damaged and will have to be repaired . You will gonna have to call a technician for that a lot of parts will have to be replaced. It will cost you around $200.
If the image is just fuzzy then the Hyper board has failed - a known problem in Toshiba tv's. Since the tv is that old finding a new board is practically impossible. Your only two options will be to rebuild the board (for a total cost of about $400) or to just consider the tv dead and move on.

Toshiba 57H82... | Answered on Oct 24, 2010


Yes, see attached photos, the model indicated uses two of the STK-392-110 CHIPS FOR THIS--UPGRADE WOULD BE TO GO TO 150 CHIP.

TOTAL PARTS COST ON EBAY WOULD BE UNDER 25 DOLLARS (I KNOW A SELLER I USE) The only other thing that fails is this set has a number of 1.8 ohm resistors around them--one may be bad--easy to test.

The hard part in this model is getting at the parts, but I can tell you how.

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

If you have questions, post a comment here and I will assist you.

SD TECH

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Toshiba 57H82... | Answered on Oct 02, 2010


sound like you have a bad hyper board.not available new..need to be rebuilt by a rebuilting company

Toshiba 57H82... | Answered on Sep 28, 2010


This set uses up to 7 fuses, some are normal glass and others are what are called pico fuses--see attached photo.

Check with set unplugged, just like any fuse.

If any are blown set will detect no voltage and set will not come on.

Let me know what you find, allow the site here is supposed to notify me by email if you comment, but major problems with that right now.


SD TECH


iF THIS INFORMATION HELPS RATE THIS SOLUTION AS VERY HELPFUL AS I do this here for free.




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Toshiba 57H82... | Answered on Aug 23, 2010


The hyper board only produces lines/noise in the picture that get worse.

When you replaced the chips (or someone did) did they check all the 1.8 ohm protect resistors AND the two pico fuses that protect the chips?

If one of those pico fuses (see photo of them in a Mitsubishi) is gone---set will shut down as no voltage detected.

The more you can tell me the better I can help you.

If the photo or information helped you rate this solution as very helpful as I do this here for free.

SD TECH




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Your set will have at least 5-7 of these fuses; if one is open, which one is it?

Toshiba 57H82... | Answered on Aug 21, 2010


I have already suggested in your other posting another way but here if you want to remove the screen is the method:

Remove the bottom grill ... (it should pull out and held in with pegs)

remove the front control panel (this is the keyboard)

Remove the screws at the bottom of the screen bezel. (At the very bottom beneath the screen will be up to 4 or 5 screws)

Lift screen up ... and it comes off.

If this is a 57 inch be careful as the screen is wide; two people doing this is better---if you twist the screen unit when you remove it you can damage it or cause the screens to pop out of the frame.

If this is the information you really wanted rate this solution as well as the other one I gave you as very helpful as I do this here for free.

REGARDS, SD TECH

Toshiba 57H82... | Answered on Aug 13, 2010


There are two ways to do this---the hard way which is to remove the entire front screen OR

What I do is (with the set unplugged) remove the back cover of the set; you should see the three large black lens.

Most of these sets there will be enough room to get a swiffer duster up inside to gently catch and remove all the spider webs. If there is not enough room let me know and I will tell you how to remove the front screen.

Also---if you can see those large black lens---clean the dust off of them with a lens cloth or paper towel with glass cleaner sprayed on the towel.

If you can reach the webs from the back do not exert pressure when you wipe the inside of the screens---easy to scratch them.

If you have questions let me know BEFORE you attempt this.

If this helped or told you something you did not know rate this solution as very helpful as I do this here for free.

REGARDS, SD TECH

Toshiba 57H82... | Answered on Aug 13, 2010


if you type in "toshiba 57h82" in a google search, the page should show you a list of lamps of veriuos stores with variuos prices. Now to change it, www.youtube.com can have a great resource of information about how to change the lamps. In youtube, just type in DLP lamp replacement. You may not find one on your set, but after whatching a few of the videos, you should have a working knowledge how to change it yourself. Just remember not to touch the front part of the lamp with bare hands. the oils in your body can cause premature damage to the lamp. Use rubber gloves. Cheap ones for a dolor store will work fine.

Toshiba 57H82... | Answered on Aug 10, 2010


Hi,
Is power indicator on tv front lit/ blinks then tv got problem in deflection section and most probably in horizontal deflection section.
And if power indicator on tv does not lit at all then problem would be in power supply section that got damaged for some reason.
I'm not sure about your electronics knowledge and skills so local tv repair shop will help you get tv fixed.
Hope these info will help you.
Thanks.

Toshiba 57H82... | Answered on Jul 26, 2010


i hook up the cable for cable tv to my tv but it only works in the pip and when i try to change it to the full screen all i get is snow .and it wont show the picture at all untuill i change it back to the pip

Toshiba 57H82... | Answered on Jul 23, 2010


This tv have a problems call CONVERGENCE,it dead.The tv convergence board have the 2 STK convergence ICS and some or all it resistors are dead.These parts on the convergence board must be replaced to solved the convergence problems.The shop will cost u $300-350 for parts and labors.

Toshiba 57H82... | Answered on Jul 23, 2010

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