Question about RCA D52W20 52" Rear Projection HDTV-Ready Television

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What is a red crt? - RCA D52W20 52" Rear Projection HDTV-Ready Television

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There are three 'picture tubes' (CRTs) used in that kind of set rather than one with three colors as with the older TVs; red, blue and green. They operate at very high levels of light emissions in order to illuminate the large screen of the rear-projection set.
More here:
Rear projection TVs 

Posted on Dec 04, 2008

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Toshiba rear projection TV

if you are seeing just green and purple color then your red crt is not working could be just a loose connection on the red crt socket or a bad red crt . crt meaning red picture tube.

May 22, 2013 | Televison & Video

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After 5 minutes the picture goes red

That model is famous for having CRT issues. Chances are the Red CRT or one of the CRT drive board is whats causing the issue. Usually if the set shuts down shortly after turning all red then its the CRT. But if it just turns red and keeps working it could be one of the CRT boards dropping out causing the Red to become dominate.

Jun 19, 2012 | Sony KP-57WV700 57" Rear Projection HDTV

1 Answer

What couses red diagonal line and red back ground picture on my toshiba television.

short on crt board check driver transisters on crt board if you want to confirm then switch them with green gun transisters from crt just swich them and see if next coclor show difrent if yes transister bad if not open crt cathode from red side to see if crt cathode shorting

Mar 05, 2012 | Toshiba Televison & Video

1 Answer


Yes the red CRT has a short in the Gun.the red CRT will need to be replaced unless you can find a local shop that has a CRT restorer which can break up the cathode short although most shops today wont even know what a CRT restorer is. The older technicians will.

Sep 04, 2011 | Toshiba Televison & Video

1 Answer

CRT problem

you need to adjust the red screen control of the crt under the speaker grill turn it down with the tv running.

Mar 02, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

No color red

you either have a bad red drive circuit or a bad red crt. try switching the crt socket from the green to the red crt and see if the red crt will light up. If it doesnt you will need a new CRT. If it still doesnt light up then you will need to troubleshoot the red drive circuitry. Let me know if you need more assistance.

Mar 22, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Lines horizonal - seems to be caused by voltage to green CRT

Your green CRT is shorted. To test put your red crt socket on the green and your red on the green. then try turning up red control if the green now works its not your tube. If the same thing happens with the red socket on the green you can be sure its the green CRT if the green works properly with the red socket, then you have a problem in the green drive circuit and not the CRT. hope this helps.

Jan 19, 2008 | Mitsubishi WS-55313 55" Rear Projection...

1 Answer

No Red

Try moving the green crt board over to the red crt, and see if the red crt lights up correctly, if it is still no red, then you may have a defective red crt. also try moving the red crt board over to the green crt. If the green is now dim, then you have a video drive problem, a screen voltage problem, or defective red crt board.

Jan 05, 2008 | Panasonic PT-53WX53 53" Rear Projection...

1 Answer

Rca 32 inch tv

your problem is in red video output circuit.

as you are seeing lines with red color

those lines are called retrace lines.

please check

  • supply to red video output ckt.&red video output transistor.
  • loose crt base or crt base connector.
  • componenrs related to red video output section
  • red signal coming to red video output ckt from signal processor.
  • at last but rare cases crt weak.
  • hopr this will help

good luck

Oct 17, 2007 | Televison & Video

1 Answer


It' sound like you have a bad crt, to make shure, just disconect the red crt baord and green crt board next to it and move then so you can try the red crt board on the green crt. If it does the same problem in witch I realy thought it's your video or hight voltage sounce on that board. If you get no problem well it's your crt.
I can almost garranty it's your crt.


Oct 13, 2007 | Mitsubishi WS-65807 65" Rear Projection...

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