Question about Toshiba 61H70 61" Rear Projection Television

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I bought a toshiba and it worked perfect when I bought it, but now the red,green and blue hues are out of allignment. I called a few repair places and they said that it may need a board. I wondered if you had any input on whether or not I should have it fixed or go shopping?

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If you can solder, you should be able to fix this yourself. Realize that there are dangerous high voltages present inside the set even when unplugged. That being said, the problem you describe is in the convergence circuit. Yes you can purchase the convergence board at multiple hundreds of $$ or you can locate the convergence ICs and try resoldering the pins first. If the resoldering does not resolve the problem, replace the ICs. These run around $25 each or so (there will be 2). These are large black ICs attached to a heatsink and will be marked STKxxx.

Let me know if you need further assistance.

Dan

Posted on Dec 03, 2008

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What is the perfect amount of red,blue,and yellow hue for the screen


that's got t o do with personnel preference and room lighting , but as a general rule adjust color hue's till the edges of a white color object on screen has just lost its primary color edge

the older projection TV's actually have voltage numbers for the service tech to adjust them too , but im not remembering seeing any in the LCD manuals

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The tv comes on and picture is perfect, then blue hue starts and progressively gets worse. Finally all blue with only sound. Turn off and back on and picture is perfect then fading begins again.


Hello.
During this procedure DO NOT touch anything else than whatever I mention here! You can get serious injury due electric shock!
You have to wait for TV to warm up and get worse blue hue you can get. Than remove front grill and behind it locate center shielding piece that also have to be removed. It held in place by 4-5 screws. Behind that "shield" you can locate "black box" size smaller than pack of cigarettes made out of plastic. It has 6 rotary buttons. 3 of them are" focus " and another 3 in the row are "screen". They all marked - take you time to study them with magnifier glass and flashlight if necessary! Locate one with letter "B" in "Screen" row . Others for green and red. You have to slow and carefully turn it counterclockwise using matching Philips screwdriver until blue is in balance with other colors.
Put everything back and enjoy your TV!
Regards.
Russ.

Apr 06, 2010 | Sony KP-57WS500 57" Rear Projection...

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Toshiba 65H80 has yellow hue.


Check you HD inputs or source. Sounds like the red stream is missing; maybe a loose cable.

Nov 17, 2008 | Toshiba 65H80 65" Rear Projection...

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Toshiba colours gone wrong


Yes it is repairable. One of two things is wrong. The color wheel is going bad or the DMD board is going bad. These are the most common repairs needed for a Toshiba. I hope this will help.

Mar 23, 2008 | Televison & Video

1 Answer

Vizio 37" LCD color problem!


is the TV still under warranty. if it is I would call Vizio and request a main board be switch and if it is not under warranty I would call a TV Repair shop and have them put in a Main Board.

Mar 04, 2008 | Televison & Video

2 Answers

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My Dad had a Hitachi rear projection with same problem blue and red were fine green was out of allignment and could not fix. Problem was the acual projector inside TV the cost for repair was more than TV was worth went out bought plasma.

Jan 07, 2008 | Samsung PCL5415R TV

1 Answer

Red and green colors won't allign....


There is one way. Get way to go in to service menu and set conversions manualy. Remember to save. Tv will be ok

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1 Answer

Yellow hue


1)Please verify your model # from back of set......

2)Reduce the color to minimum or tune in a black & white chan.
you should see gray, not yellow hue

3)Remove lower front grill cover & access panel.....locate the
focus / screen control block...turn blue screen control slightly
CW......red,green and blue must mix to equal gray

4) reset color to normal level.......reassemble

Dec 22, 2007 | Toshiba 57H82 57" Rear Projection...

3 Answers

Colors are off after auto adjust


I seem to have found the solution (and the cause, perhaps?) for this problem!

I was having the EXACT same problem with a monitor I'm repairing for a friend. The capacitors on the power supply board were blown (CapXon capacitors, who'd've guessed), which was keeping it from powering up. After replacing the capacitors, the screen worked beautifully. But it had this weird yellow tint!

The strange part was that pure colors - red, green, blue - all appeared perfectly OK on screen. Curiously, the menus would show in the proper colors, except for one: the manual color adjustment menu, which illustrated "Blue" as a sort of off-green in the icon. Auto-Adjust would always fix the colors for a split second, then go back to yellow. Reset didn't fix it. Color reset didn't either. So, exactly the same problem as above.

The solution I found was hidden within the main menu itself, a sort of "easter egg". <b>Hold the Menu button down while pressing Power, and hold it down until the screen, and menu, appear</b>. There will now be a hidden selection, "Auto Color", printed in a red-on-black font at the bottom of the menu. Use the +/- buttons to access it, and press Menu. Voila! PERFECT COLOR! Perhaps this menu was accessed by accident, and calibrated to an incorrect color key. But now my picture works great, and the setting lasts through Auto-Adjusts and Resets!

Hope this helps some people, it sure saved my ****! ;)

Dec 05, 2007 | AOpen 19" LCD

1 Answer

Problem with color


Yes you have a problem in the red crt driver board. Most likely the driver transistor is failing. This is a component level repair, so if you have no experience with TV repair, play it safe and call in a trained tech to assist you in this matter. Good Luck

Jun 05, 2007 | Mitsubishi VS-50609 50" Rear Projection...

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Toshiba 61h70 Picture Problems Hello, I have a Toshiba 61h70 TheaterView HD Projection TV, and was recently having some slight convergence issues (red was out of alignment and could not be adjusted). So I researched and found that the IC?s (STK392-110) needed to be replaced. I initially purchased them on eBay, to later find out that they were cheap clones and did not work (they made the convergence worse, actually). I then purchased 100% Sanyo IC?s from a reputable dealer and replaced the IC?s again. Once finished, I then entered the service menu and adjusted the convergence alignment. Once the alignment was perfect, I hooked back up the TV antenna, the DVD player (composite), and the S-video from my computer. The convergence is fine, but now I?m having a totally different issue ? the video is ?scrolling?. The menus will show up fine, however any incoming video inputs will show up okay for a split-second, but will then flash and the picture starts to scroll in different directions. This happens with any of the video inputs. I checked and changed all the service menu items to factory defaults, however this had no effect. I have pasted a link below to a short video that illustrates the issue that I?m having. Please note that the video starts off with a black screen, showing the ?input? menu, and then I selected the ?TV input? and changed the channels. You will see the picture fine for a moment when the channel is first changed, but then the picture will start to scroll. Any ideas of what would be causing this? And how can I correct the issue? I?m not a TV repair expert, so I?m not even sure where to start. Any help would be greatly appreciated. http://s75.photobucket.com/albums/i303/hybrydmike/?action=view₪t=TV_Troubles.flv

Feb 27, 2017 | Toshiba 61H70 61" Rear Projection...

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