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Question about Pioneer SD-P50A5-K 50" Rear Projection Television

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Right side convergence

Hi! I have a Pioneer sd-p4553. Picture has always been great. Few problems I have fixed my self such as loose resistors, etc. Annually clean guns and mirror and remove dust from boards. Have just noticed that the blue convergence on the far rightside is off (about 2 inches of screen) only noticeable on white type. Convergence line up is OK except for a little tail on the blue only on right side. IC's need to be replaced? If so, part#'s. thanks for your time. jgs

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More likely an alignment issue.Ic replacement alone may not complete the repair.

Posted on Sep 24, 2007

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A convergence IC has burned out. If I remember correctly, those Pioneer sets have one huge convergence IC, but that IC only has 5 channels in it so they use another smaller dual STK IC and one half of it is used for the 6th channel and the other half is the vertical output. Look on the convergence board, find the blue convergence jack, identify the blue horizontal channel, follow the traces and replace the IC handling the blue horizontal channel.

Posted on Aug 29, 2007

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http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
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http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

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Pioneer Tv SD-P4553

You have incomplete vertical deflection at bottom of screen. Replace C155([email protected]) on video/deflection assy. Use part number ACH1131
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