Home Theater Forum and Systems banner

1 - 3 of 3 Posts

·
Registered
Joined
·
30 Posts
Discussion Starter #1
Hi! hitachi 46f510. I have changed convergence chips, changed almost all the electro caps on power and def board, a transistor with dynamic focus tested bad so I changed out QF01(trs 2sc4686a 1200V). I was going to remove and test everything near there but this solder is hard to remove and overheats board when attempting. picture will start focused in the center and blurry on the outside. then it will shift to blurry on the inside and focused outside. all colors will move jduring convergence just not enough to match template around corners and outer edge. blue will move but is much less manuverable and will not move as much as blue and red. here is examples. thanks alot for any ideas or info.
 

Attachments

·
Plain ole user
Joined
·
11,121 Posts
You need to go through the convergence procedure for your set from the beginning. When you get to the 3x3 mode to rough in the geometry work from the outside toward the middle.

Your set would likely not be running if that transistor was defective.
 
1 - 3 of 3 Posts
Top