Question about RCA D52W19 52" Rear Projection Television

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Replace transformer can anyone tell me how to remove and replace the flyback transformer on a rca 52 in tv ?

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You will need a good quality soldering station, some solderwick to remove the solder from the transformer's pins on the underside of the circuit board. You can also use a solder removing tool but its a costlier device. You will have to remove many connectors and screws to free up the board so that you can access the underside of the board. You will also have to disconnect the anode lead from the high-voltage divider block, making sure the TV is unplugged and that there is no charge left in the CRTs.

If the preceding paragraph reads like greek to you, don't attempt to do this yourself!

michtech

Posted on Feb 13, 2009

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I would try resoldering the flyback transformer. Often cracked solder on the flyback will cause that same symptom.

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Hello butmommy03,

This is the procedure but first I must warn you. You are dealing with one of the most dangerous parts of a TV The High Voltage anode or the CRT and the flyback transformer. That being said this is what you have to do:

1) unplug the TV from the wall or power strip.

2) take the back of the TV, and find the High voltage trippler and using a screwdriver grounded by a clip-lead to the grounding strip touch it to the exposed metal of the input to the High Voltage trippler.

3) using a soldering iron de-solder and remove the wire from the HV trippler.

4) Once this is done, angle the chassis to expose the bottom of the Deflection board, if this is no possible you will have to remove the deflection board to get a look at the bottom, once this is done and you can view the bottom of the board using a soldering iron and a de-soldering pump you can remove the solder from around the pins of the flyback transformer about 10 pins in all. Then remove the screws that hold the flyback in place. this is the procedure you requested,

However again I must ask you not to do this yourself and to get a qualified TV technician to troubleshoot this TV for you.

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

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1 Answer

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Hi, rca`s don`t have convergence IC`s, they use an entirely different system to perform convergence, you have a blown chemical fuse and 3-6 bad solder joints on your flyback transformer. replace fl231 chemical fuse rated at 400ma. right beside flyback (theres 3 of them your bad one is the middle one)and while your soldering re-solder all of the flyback transformer pins and your tv will be back to normal :) video-tek

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First and foremost, disconnect the power cord from the mains.
Next, after having removed the back cover from the set, discharge the tubes' residual high-voltage to ground using a suitable tool.
Access to the transformer is pretty much staightforward here.
A few hardware removals and you can then get to the board and transformer..
Mark, then remove all leads that go to the unit.
INstallation is the reverse of removal.
Be sure to replace the driver device, just to be certain...accordianman

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1 Answer

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If the light blinks 3 times its most likely the flyback. Your model uses flyback 259296 and you can get a replacement at the following link and they have free online instant messageing with a tech when you replace the flyback so they can take you step by step while you change it. Hers the link its flyback 259296.
http://servicemanuals.vstore.ca/

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Bill

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remove solder from all pins and squeeze clips to remove...

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