My tv keeps glitching it gets a line then dissappears and then sometimes it will go blank and just have sound it is an sd-643hd5 pioneer rear projection

SOURCE: Pioneer projection TV vertical lines on screen

do you have full picture and did this set have any faults before this,possible image burn on crts.from previous horizontal fault.

Posted on Aug 18, 2007

SOURCE: Pioneer SD-643HD5 64 in. Rear Projection

You need to replace convergence chips - they are behind the large black heatsink

Posted on Sep 02, 2007

SOURCE: HELP TO FIND IC's CONVERGENCE GENERIC NUMBERS

STK392-180 http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

Posted on Sep 02, 2007

SOURCE: remove and replace pioneer convergence board

pioneer sd p6085-k convergence blue

Posted on Nov 04, 2010

SOURCE: I have a 64 inch

Ha Ha, I had the exact problem. I think mine is the same model of TV as well, I have a 64" Pioneer made in 2003. So my TV would hit the slanted ceiling above my stairs as I tried to move it down. I first took off the wheels of the TV and this helped but it was not quite enough. So since the bottom of the TV is flat with exception of the side boards and the front trim. I removed the front trim temporarily and cut off the side boards with a circular saw till even with the flat bottom. This gave me 2.5" more clearance which was enough to fit the TV downstairs. Hint if you scribe the cut line with a utility knife it will reduce chipping.
TimBilt

Posted on Aug 05, 2011