Question about RCA P46920BL 46" Rear Projection Television

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RCA P46720BA no guns are coming-on need service info if possible.

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  • upoor2 Nov 24, 2007

    how to get to the lamps and lean them 46" rca projec3tion tv

  • Anonymous Mar 08, 2008

    won't turn on

  • Anonymous Mar 20, 2008

    Watching tv and it just turned off. Unable to power it back it. Looks like the power cord is bad, not sure. Anyone have this problem?

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Sorry bower hate to be the messanger of bad news but crts are not wired intogeather except the filiments are wired in Paralell Opps (spelling sucks)when you say no guns are comming on have you opened the set to see if the "guns" as you call them are all lite up on each crt?? These are know as filiments by the way. Now if all three tubes are lite up then you have a sweep falure most likely or a High voltage shut down and is probably past your range of trouble shooting Im guessing??? But if all three guns are lite up that would be a good thing to tell your repirman but he will know haver a short time what your problem is anywho. and what im guessin is the horiz drive or vert sweep problems?? Good luck

Posted on Apr 04, 2006

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Looking for set up codes for rca p46720ba-one for allremotes

Posted on Mar 17, 2008

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Tvs use high power so it can be dangerous to poke around in them. This model uses a 3 gun projection maybe one gun has quit and breaks the cirquit so that they all stop? When i search this model on google i see alot of part numbers for red replacement and the full projection unit including the anode. There is a service manual available for it also from "Tiger direct"

Posted on Apr 04, 2006

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1 Answer

RCA 46 INCH REAR PROJECTION TV


that is one truly unhappy device..sounds like the video board is on it's way out..could be the imaging system too, but then, you'd be looking at a whole system replacement

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Where is the flybac located in a rca hd52w59


Hello
Flyback transformer other wise called Line output transformer {LOT} is actually a step up transformer, which supplies extra high tension voltages to the guns. It can be locatee on the main printed circuit board. 2_7_2012_5_19_59_pm.jpgJust see the different views of the main board of your RCA TV. You can see the flyback transformer at the left top corner, look like a large black componen; with a ferrite "U" type core goes though it. It is the LOT. Line Output Transformer, otheriwse called as Flyback Transofrmer. OK.
2_7_2012_5_20_36_pm.jpg

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The info on the gun says it will shoot many different staples, but it will only take 3/8 staples and I need to use 1/2 staples to do the job.


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Clean the light guns


if i remeber the screen comes out if you remove the border around it just be carful not to bend it too far, but it can bend quit a bit and it should come right out and you can clean the back of it too

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Flyback


Its a large transformer with either 1 0r 4 large red wire simallar to a spark plug wire coming out of it. Depends on chassis number wether it has1 or 4 red wires coming from it. Let me know if you need more info or a link where you can get a service manual.

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Replace the green projection gun


I have almost the same problem, but it was with the blue CRT tube. The coolant leaked onto the underlying PCB and caused short-circuits and sparking or arking. I purchased an exact replacement PCB for the CRT, but I suspected most of its coolant had gone, so I need to re-fill the coolant for the blue CRT to stay cool.

Dec 01, 2006 | RCA Scenium HD65W20 65" Rear Projection...

1 Answer

No Power up??


You could have a bad high voltage transformer AKA a flyback. This set could have also one of a dozen or so problems. If you have any electronic repair experience, first get a service manual and start from there. If you do not Please play it safe as there are no user replaceable parts insiide this set As this TV set is not the place to be experiementing around the inside of. Call in a tech. Good Luck PS please do not forget to rate this thread.

Nov 27, 2006 | RCA P46920BL 46" Rear Projection...

1 Answer

Color


It needs repaired. I can think of many different possibilities causing the problem: 1. Shorted video luminance driver transistor. Should be under $200 total repair if you take set in. 2. Shorted green kine bias transistor. $200 3. Failed jungle ic. $250 4. Shorted green gun in the picture tube. More than you paid for tv set... Rca picture tubes commonly run 25% more than the tv set did new!!!!!!!

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