VIEW RCA p52937sg MANUAL - RCA P52937 52" Rear Projection Television

What you are describing can be due to a number of different settings.

Focus on the red and green guns
Sharpness on the red and green guns
Horizontal position and size
Vertical position and size.

Please consult a professional for adjustment on these items as they are all near or connect to parts that have Hazardous Voltage.

the part is called the convergence ic. replace those ics.

Tries this website for convergence ICS.Must know how to solder?Tv Repair World.com,Ebay.com.

The problem may still be on the power supply board (one of the supplies may be missing and) when you unplug the supply both supplies go missing check the supply voltages and repost

Go to this link and download your manual from the manual tab. http://www.retrevo.com/s/RCA-P52937SG-TVs-review-manual/id/402dj478/t/1-2/

Original remote stock # 240895 $38.69

I had the same problem with mine. There are two voltage capacitors in there. A low and high. The hig voltage is bad. I had to have mine in the shop. Cost about $400

your model has the PTK195 chassis you can get the service manual and parts at the following link. They email the manual and also provide free tech support to help you with diagnosis.
http://servicemanuals.vstore.ca/

Try unpluging it for 15 min.and try it ,if it don't work it might have a leak in your button,it is a simple and cheap repair.I suggest to call your local repair shop.

Part # 237469   8.00 bucks. ......T.