Samsung HCL473W Convergence problem

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hansim4
Samsung HCL473W Convergence problem

I have a samsung HCL473w that started to have convergence problem.  I have this red bow on the top of the screen and red, green and blue are not aligned.  I tried manual adjustment but nothing will move.  Also, perfect focus says "No sensor data".  Based on threads in this forum, I conclude that I need to replace the IC board.  I ordered it from the partstore.com and waiting for it arrive now.

I do have one issue though.  I don't know how to take the old board out?  From the back, I see that board is secured with 3 screws on the right.  The screw near the front of the TV is almost impossible to get to.  How am I suppose to remove this screw?  Do I have to remove this big thing with the bulb right above it as well?  Also, even if I remove all screws, how do I slide it out?  It's blocked at the both ends with these plastics sticking out.

Perhaps the service manual may help.  If anyone has one to share, please send me a copy to [email protected].

Thanks in advance.

 

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