Question about RCA P46924 46" Rear Projection Television
I suspect if you look carefully on the back of the set you will find the chassis number is a PTK 195. If you find that is the chassis inside this set, you most likely have a single bad diode.
Confirm chassis number to me and I will tell you where to look and how to replace the diode.
Posted on Nov 11, 2010
Seems as though some coolant from one of the CRT's has leaked on the convergence board. Cleaning it off may resolve this problem. Also check U1001 and resistors around it and STK IC's too....
Be careful when working on CRT boards as the flyback holds leathal 20,000 volts even when unplugged. So be sure to discharge it before working on the convergence board.
Posted on Nov 10, 2010
If the colors look right and it's just a geometry problem then it's not the convergence board - the geometry of the image needs adjusting. Those adjustments should be done on a static test image, from the main menu. If this is not enough you will have to do it from the service menu. This is a very delicate job that should be left to a pro. Luckily it's going to be a relatively cheap one to fix.
Posted on Nov 10, 2010
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Posted on Jan 02, 2017
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