Question about Sony KP-51HW40 51" Rear Projection Television
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Posted on Jan 02, 2017
SOURCE: Ghost PIcture
Uniontrip, im afraid you have a problem some other 3 illion other rear tube projection set owners face or will face in the near future. Its called a convergence problem. You see there are Two IC's inside this set that correct the alighnment of the three picture tube alighnment to each other to get a steady straight picture. To fix this problem, both IC's should be replaced together as a whole, even if its only one IC bad now, you can bet your bottom dollar, down the road, the other will go bad as well. If you have any solid state repair experience and know how to unsolder and solder printed circuit boards, this is not really a difficult job to do, as they are two black IC's standing up against a metal heatsink and the lettering on them will start with STK###-###, the # being other numbers. Now since these are solid state sets and they really have noi USER replaceable parts inside them, it is always best for the non experienced to refer to a trained repair technician to do this sort of repair. Most of the time, a repair such as this, should not exceed a couple to a few hundred bucks. Good luck. Please do not forget to rate this thread.
Posted on Oct 16, 2006
SOURCE: SONY KP-61HS30
When one or all the colors are bending severly, then the convergence circuit is not functioning correctly and must be repaired. Only one color bending means just the convergence ICs and all colors bending means convergence ICs and voltage supplies. Convergence issues are the most common problem with rear projection (w/picture tubes) televisions. The cure is replacing the convergence IC's. Sometimes the pico fuses need replaced as well. If you have the experience to use a soldering iron and a basic understanding of electronics, then, you may be able to do this job. If not then call a servicer in your area. Go to the Sony website, Sony.com, and you can locate one in your area.
Posted on Jan 07, 2007
Check out CONVERGENCE GALLERY . If you see your symptoms you have a problem in your convergence amplifier circuits. Typical Sony Convergence repair requires disassembly for replacement of 2 ICs, sometimes a fuse or 2, then TV is like new.
It is much more complicated than changing batteries on your remote. Many consumers try unsuccessfully to do a convergence repair. I recommend finding someone competent to do it for a reasonable price. Typical repair shop charges may be from $400 to $650.
If you are in the Calgary area, call me. More reasonable rates.
Posted on Oct 15, 2008
the problem is in the power supply most likely. The overvoltage protect circuit is causing you not to be able to turn the tv on. This is common to all tv's. Solution unfortuantely is get another tv unless you know someone who can either work on or replace the internal power supply
Posted on Jul 01, 2009
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