Question about RCA P46924 46" Rear Projection Television
OK, heres where it all started, I traded this TV for a junk Car with a good friend of mine who had the unit sitting in his garage for a year(where the junk car has now been sitting for 2) and nothing was wrong with it except for the fact that the only way the unit could be turned on was with a remote, big deal. Anyway, The TV went into a 3-d like mode for about 3 minutes adn stopped working about two months after I started using it. I put it out in my Barn, disgusted without even looking it over and today, about 3 months later I took off the back and discovered a fuse was bad! Over excited I installed the only fuse that size I had that was too strong. The TV powered up and worked bveautifully besdes that the green picture tube was out. I thought that mabey this is what had contributed to the 3-d effect. I then took off the front of the TV so that I could better examine the picture tubes. It was then that I noticed that the ribbon cable that went frompicture bulb to picture bulb was dissconected from the middle(green tube) I ONCE AGAIN OVER EXCITED, plugged it into the circuit board and it seemed to be working fine, althought the 3-d effect conituied to be a problem and I smelled the dreded Electronic buring smell. The screen went flashing blue and I freaked out and ripped the plug from the wall. I waited about a half hour and plugged it back in the tv powered with the Blank TV sound and speakers functional . There was No picture, no lights. I tried to detect the smell that seemed to be coming from somplace near the back right corner, as if you were facing the front of the TV.I did not see any burns or cracks but could smell electric I Am going to repost this forum on many help forums. Not to insult anyone I'm just relaly trying to solve this problem. Thank you in advance for any help and advice you have to offer.
Check connections at the HV distribution box (where the leads from the flyback connect to) and make sure all of these are in solid first. It sounds like a device is burnt open, since the over- current protection is not activated. This would allow the TV to still turn on, but with no picture. Of course you had installed a fuse too large, so that could explain that too- don't do this, you might have made the problem worse by burning out more components. Could be a bad horizontal deflection transistor or flyback transformer. Transistor p/n 2SC5148, flyback 239111 for this model, RCA P46924. You can find them on ebay for cheap.
Posted on Jan 06, 2008
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