Question about Sony KP-53HS10 TV
Tim when you changed this ic did you look for blown fuses check all fuses and see if you might have what is called a pico fuse
Posted on Nov 15, 2007
You said in your post you replaced the IC on the CG board. I assume you mean that you replaced the STK392-020? If so did you measure the value of the 2.2k feed resistors just in front of the amp? Assuming you've done all that and everything measured fine then I would suggest a corrupt eprom located on the BM board (about 4x6 inch board that plugs onto another larger one). The complete baord is about the two hundred dollar range and one this old 4:3 aspect ratio model it's probably not worth all the hassle. It would be about a 4-6 hundred dollar repair in the shop, including parts, and to do it yourself would be nearly impossible for all the manual adjustments you would have to add back in after the repair.
You would also need to order the jig from Sony for a grid patter to follow and if you're not used to writing in hex to reset the pattern I assure you it would be a project that could last you all winter...
On the other hand, if you don't mind spending the 4-6 hundred call around and see what off the cuff estimates a shop will give you for doing the work.
Hope this helps.
Posted on Nov 13, 2007
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