Question about Sony KP-43T90 43" Rear Projection Television
This is a set first made in 2001---if colors are skewed and will not adjust in the customer mode (convergence) you have a convergence circuit problem.
This set uses two of the STK-392-150 convergence IC chips--both need to be replaced and the set adjusted. Sometimes there will be either a fuse or resistor around them that is bad--for the most part just both chips need to be replaced.
Most shops get 300 or more for this repair but you can buy a pair of chips on EBAY for under 14 dollars plus shipping.
If you or someone you know can do it I can tell you everything you will need to do it and give general instructions on how to get at the chips and replace them.
Here is a picture of a similar model with the same problem:
Not all sets with this problem look exactly the same.
This photo was provided to me by a customer who I repaired the set for and shows a typical convergence problem in this type of TV.
If this information has helped you rate this solution as I do this here for free.
If you want to know where to get the parts and also what is needed for the repair---let me know and I will post the needed items first and the instructions also.
Posted on Dec 10, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Jun 30, 2011 | Sony Grand WEGA KDP-57WS550 57" Rear...
Feb 20, 2011 | Mitsubishi WS-55857 55" Rear Projection...
Apr 10, 2010 | RCA R52WH73 Projection Television
Apr 24, 2009 | Panasonic PT-47WX49 47" Rear Projection...
Apr 21, 2008 | JVC AV-56WP74 56" Rear Projection...
Jan 20, 2010 | Sony KP-43T90 43" Rear Projection...
348 people viewed this question
Usually answered in minutes!