Question about RCA P52937 52" Rear Projection Television

1 Answer

Television has no picture

Our tv has no picture but perfect sound. It has red, blue, green line(thin) across the screen about eight inches from the bottom of the screen.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 398 Answers
Re: Television has no picture

That TV uses the PTK195 chassis, and the fact that you see only a thin line for each color near the bottom of the screen tells me your vertical output IC has stopped working, and is putting a small DC voltage across the yokes. I have seen this caused by a defective vertical output IC and I have also seen vertical problems caused by a small CRT coolant leak which drips onto the main board near the vertical output IC. If you do not have experience servicing the PTK195 chassis than have a qualified tech handle it for you.

Posted on Jul 13, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Thin red line, green line and yellow line going across the screen

the problem is vertical collapse,i am not so sure you can trouble shoot this on your own but you can send the board to eithor pts electronics or tristate module for repair
to get a price get the number off the sticker--left hand board(looking from the back) it will start CTC195---- write down entire number before you call them

Sep 02, 2009 | RCA P52926 52" Rear Projection Television

1 Answer

Projection lights don't line up

Sounds like your convergence chips have failed. This is a common problem. You can get a repair kit from .

Apr 11, 2009 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

Lines on the screen

Are they thin, white lines running east to west? If so, they are called retrace lines and indicate that the screen settings for the picture tubes is set too high or there may be a mal-function of the CRT driver circuitry. Try adjusting the screen controls which are located behind the front grill of the TV behind an access panel. Once you remove the grill and access panel, you'll see a small control assembly the has two sets of controls. Three for adjusting the red, green, and blue focus, the other, the red, blue, and green screen controls. To adjust correctly, put the TV on an unused input(dark, blank picture) and adjust until there are no visable retrace lines or color in the image.


Feb 14, 2009 | Panasonic PT-51HX41 51" Rear Projection...

2 Answers

Panasonic PT-47X54J Not working

I can't tell you how to fix this set, but I can tell you that its not a "lamp" issue as this doesn't have a lamp. Its a 3 picture tube projection TV. the three tubes are in a red green blue format, and average about $175 for each one, not including the labor to install them. your problem, may not be the tube, but just a power supply problem, but there is a chance it is.

Nov 21, 2008 | Panasonic PT-47X54 47" Rear Projection...

2 Answers

Colors off. blue and yellow not lined up

try to set the convergance if you cant you can adjust the color tubes from inside the tv but have to be very careful to do this. There is actually only 3 colors in the tv red, blue green so I would say your blue and green need lined up

Sep 30, 2008 | Projection Televisions

1 Answer

No picture

Sound like you lost Vertical Deflection.  Youshould not have a line across the screen because this could destroy the threeCRT Red, Green, and Blue (Picture tubes) if left on to long. There is a protection circuit built in to protect your CRT’s.    Check on the PCB-SIGNALboard (Tuner located on this board) transistors Q-206 Collector should be around 1 Volt Base and Emitter 0V. If the voltage atthis point is greater then 5 Volts the Vertical output IC-401 (Mounted on heat sink 7 pin inline IC) is bad, Part # LA7845.  Pin Voltages should be PIN 1= 0V, 2= 34V, 3= 32V, 4= 3V, 5= 3V, 6= 33v, 7= -6V.  Data sheet located at

Jun 22, 2008 | Mitsubishi VS-6043 60" Rear Projection...

1 Answer

Sony 65 inch screen tv

The lines you saw, i;m sure they are the ones called retrace lines but know the failure could be located on the red CRT board. Most likely the video amplifier is defective and not necessarily the CRT.
What is the model number of your TV?

Jun 17, 2008 | Projection Televisions

1 Answer

Sony 65 inch screen tv

Yes the red tube is shorted. I will post a link to the site where I work as they have an entire AV48WP30 with a bad tuner they are selling parts off of including the Tubes. they also provide free info on how to switch out the tubes as a unit which is a fairly easy job. Heres the link.

May 21, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

My Hitachi 65SWX20B Model, made in 02, just developed Picture disturbance

Can you post a picture of the set. This might be a convergence problem. seeing the set will confirm this.

Thank you,

Oct 28, 2007 | Hitachi 65S500 65" HDTV-Ready Rear...

Not finding what you are looking for?
RCA P52937 52" Rear Projection Television Logo

204 people viewed this question

Ask a Question

Usually answered in minutes!

Top RCA Projection Televisions Experts

The Wyzzyrd

Level 2 Expert

83 Answers

D. E. Hev

Level 3 Expert

1059 Answers

Ron Dufek
Ron Dufek

Level 3 Expert

398 Answers

Are you a RCA Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides