Question about Toshiba 50H82 50" Rear Projection Television

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Red gun gone...

Hi Guys ( and gals... don't want to stereo type ;-):   I have a friend with this toshiba model.... issue: in the picture there is a red horizontal line.  How easy is this fix?  Were poor solder joints an issue on these like the ones that plagued the older Pioneers?(too easy a fix )  IC replacement no doubt... Would you have a part number?

Thanks in advance for your attention to this request...

Cheers. . . Werner

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Re: Red gun gone...

STK392-110T X 2 in TOSHIBA , Do not use generics.If you
want to upgrade = STK394-160E = I use Hitachi brand......T.

Posted on Nov 25, 2007

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2 Answers

Have gone from a good picture to green and blue picture.what happened?

If you are connecting the unit by componet cables (RED,GREEN<BLUE) check the cables first to make sure all are connected. If you find they are ok then your red tube may not be lighting up. If you are using a cable box try connectioning the set direct to the cable outlet on your wall. You could also be missing red drive signal to the CRT, in which case service is needed.

Mar 10, 2011 | Samsung Projection Televisions

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A friend bumped into my Toshiba 61HX70. Now the

Convergence is off. A tech can help resolve the issue.

May 27, 2010 | Toshiba 61HX70 61" Rear Projection...

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No Red color at all. The convergence feature does not work either. Lots of green and blue RCA Model D52W59

Red color gun has failed, which will make the picture over saturated with the other two colors(blue,green) the bad news is the three color guns need to be replace in a set(all at the same time) because if you only replace the red it will over saturate the older blue, green guns then your picture will be mostly red.Unfortunently in most cases it's not worth the investment, better off to purchase a new tv. Good luck !

Nov 28, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

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Loud pop sound now no picture or sound error message and flashing red light

Very likely the bulb has gone they have had some issues with bulbs going quite frequently on this model, bulb I believe is about £100 and an easy job on this model

Nov 27, 2009 | Toshiba 57HM167 57" HDTV

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Fix my line problem but red LED flashes five times

Hi Guys, Looks like your advise took care of the problem. I adjusted the power knobs for each of the RGB guns on my Sony 51 inch projection TV. The color looks great and I don't seem to have the blinking indicator light bugging me any more. I will be sure to suggest you folks to anyone with these type of technical questions.


Jan 27, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

I'm seeing red, literally, after buying this set for $300.

through the front of the tv behind the speaker grill and behind the panel in front if the CRTs there will be a square object with 6 knobs you can turn. grab a flashlight and twist the RED SCREEN control to the left until the red is less prodominate. make sure you still have some red because then the picture will look purple. that adjsutment is called G2 or SCREEN control adjustment. try that be careful though because tooo far one way and the picture might start to blank.
make sure that you check all connections coming from your video sources also.

Jan 20, 2008 | Sony KP-53XBR45 53" Rear Projection...

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Greenish picture, or lack of red.

Not tuner........Did you check RGB screen adjust up front
behind access panel?.....Possible CRT issue.............T.

Nov 27, 2007 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Touch Screen Error

RED GUN OK, you need convergence IC's replaced = Toshiba
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Nov 14, 2007 | Toshiba 50H82 50" Rear Projection...

2 Answers

Toshiba model 61HX70 convergence issue

It is a good possibility you damaged something on that PCB that had the IC's, I like to use an upgraded chip the STK394-160e that is designed for HD signal stresses. I dont know why they ordered the convergence board but I suspect it would have been ok, there are also 2 jumpers that need soldering JW10 and JW50 that supply power to the chips and they REQUIRE resoldering or it will fail again. Might try reseating the RED CRT board, check for cables that you may have unhooked to see if they are not seated in their sockets properly, double check every wire you unhooked, Make sure you used a Silicone Heatsink Compound on to the back of the IC's. I dont know what all you unhooked, but check the wires going between the CRT Boards. Check for cracks in the boards to make sure they werent flexed to much. Good Luck.

Sep 09, 2006 | Toshiba 61HX70 61" Rear Projection...

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