Question about Sony KP-43T90 43" Rear Projection Television
HI The following happened with my TV. I called Sears , and described my problem.They told me i need to exchange both 18 PIN Single Inline Package IC`s STK392-150. The original chip cost $75 , i bought the exact same chip ( generic ) frome someware for $ 5.47. I installed the chips myself ( good job ) and turned on the TV. Everything perfect ! I turn off the tv ,and close the back. One minute later i turn on the tv , and the exact problem appears again !!! My screen looks green and i cannot adjust the green gun to left or right , only up and down. If i cover up the green light bulb , the picture looks perfect( only the color missing ) . Green is out of focus. I know about maintenance mode , and i am very familliar with electronics. Should i have purchased an original Sony IC ? I didnt think it would make a difference.I applied thermal compound , watched out for ESD Damage , discharged the caps... Everything fine, and clean soldering. Please someone help me. Thank YOU !!!
Compare your rgb voltages and your cathode voltages(green, red, blue) and also access your service mode settings. It might not be the STK-392-150 that is defective.
Posted on Sep 26, 2007
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Problem with Hitachi 51F500 51 in. Rear Projection HDTV-Ready Television
i want to learn how to do convergence on my tv its a hitachi rear projection i have problums with colors not aligning,could you lead me in the right direction ps: i don't have the remote so i
can't magic focus
Posted by ejaparks on Mar 03, 2011
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Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.
Here is an example photo....
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